LATTICE SEMICONDUCTOR CORP
S-3, 1999-12-21
SEMICONDUCTORS & RELATED DEVICES
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<PAGE>
   AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON DECEMBER 21, 1999
                                                      REGISTRATION NO. 333-
- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                         ------------------------------

                                    FORM S-3
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                         ------------------------------

                       LATTICE SEMICONDUCTOR CORPORATION
             (Exact name of Registrant as specified in its charter)

<TABLE>
<S>                             <C>
           DELAWARE                   93-0835214
 (State or other jurisdiction      (I.R.S. Employer
              of                Identification Number)
incorporation or organization)
</TABLE>

                             5555 N.E. MOORE COURT
                            HILLSBORO, OREGON 97124
                                 (503) 268-8000
         (Address, including zip code, and telephone number, including
            area code, of Registrant's principal executive offices)
                         ------------------------------
                               STEPHEN A. SKAGGS
                            CHIEF FINANCIAL OFFICER
                       LATTICE SEMICONDUCTOR CORPORATION
                             5555 N.E. MOORE COURT
                            HILLSBORO, OREGON 97124
                                 (503) 268-8000
      (Name, address, including zip code, and telephone number, including
                        area code, of agent for service)
                         ------------------------------
                                    COPY TO:
                               JOHN A. FORE, ESQ.
                        WILSON SONSINI GOODRICH & ROSATI
                            PROFESSIONAL CORPORATION
                               650 PAGE MILL ROAD
                          PALO ALTO, CALIFORNIA 94304
                                 (415) 493-9300
                         ------------------------------
        APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:
   From time to time after the effective date of this Registration Statement.

    If the only securities being registered on this Form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box. / /

    If any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, other than securities offered only in connection with dividend or interest
reinvestment plans, check the following box. /X/

    If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. / / __________________
    If this Form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, please check the following box and list the Securities
Act registration statement number of the earlier effective registration
statement for the same offering. / / __________________
    If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box. / /

    If any of the securities being registered on this Form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, check the following box. / /
                         ------------------------------
                        CALCULATION OF REGISTRATION FEE

<TABLE>
<CAPTION>
                                                                        PROPOSED           PROPOSED
                                                                         MAXIMUM            MAXIMUM
            TITLE OF EACH CLASS OF                   AMOUNT TO       OFFERING PRICE        AGGREGATE          AMOUNT OF
          SECURITIES TO BE REGISTERED              BE REGISTERED      PER SECURITY      OFFERING PRICE    REGISTRATION FEE
<S>                                              <C>                <C>                <C>                <C>
4 3/4% Convertible Subordinated Notes due
  2006.........................................    $260,000,000           100%           $260,000,000          $72,280
Common stock, $0.01 par value..................         (1)                (1)                (1)                (2)
</TABLE>

(1) Includes 6,274,131 shares of common stock initially upon conversion of the
    notes at the conversion price of $41.440 per share of common stock. Pursuant
    to Rule 416 under the Securities Act, such number of shares of common stock
    registered hereby shall include an indeterminate number of shares of common
    stock that may be issued in connection with a stock split, stock dividend,
    recapitalization or similar event.

(2) Pursuant to Rule 457(i), there is no additional filing fee with respect to
    the shares of common stock issuable upon conversion of the notes because no
    additional consideration will be received in connection with the exercise of
    the conversion privilege.

    THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF
THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(A),
MAY DETERMINE.

- --------------------------------------------------------------------------------
- --------------------------------------------------------------------------------
<PAGE>
                 SUBJECT TO COMPLETION, DATED DECEMBER 21, 1999
THE INFORMATION IN THIS PROSPECTUS IS NOT COMPLETE AND MAY BE CHANGED. THE
SELLING SECURITYHOLDERS MAY NOT SELL THESE SECURITIES UNTIL THE REGISTRATION
STATEMENT FILED WITH THE SECURITIES AND EXCHANGE COMMISSION IS EFFECTIVE. THIS
PROSPECTUS IS NOT AN OFFER TO SELL THESE SECURITIES AND IT IS NOT SOLICITING AN
OFFER TO BUY THESE SECURITIES IN ANY STATE WHERE THE OFFER OR SALE IS NOT
PERMITTED.
<PAGE>
                       LATTICE SEMICONDUCTOR CORPORATION

                                  $260,000,000

               4 3/4% CONVERTIBLE SUBORDINATED NOTES DUE 2006 AND
             THE COMMON STOCK ISSUABLE UPON CONVERSION OF THE NOTES

    We issued the notes in a private placement in October 1999. This prospectus
will be used by selling securityholders to resell their notes and the common
stock issuable upon conversion of their notes.

    The notes are convertible prior to maturity into common stock at an initial
conversion price of $41.440 per share, subject to adjustment in certain events.
We will pay interest on the notes on May 1 and November 1 of each year,
beginning on May 1, 2000. The notes will mature on November 1, 2006, unless
earlier converted or redeemed.

    We may redeem all or a portion of the notes on or after November 6, 2002. In
addition, the holders may require us to repurchase the notes upon a fundamental
change prior to November 1, 2006.

    The reported last sales price of our common stock on the Nasdaq National
Market on December 20, 1999 was $47.50 per share. Our common stock is traded on
the Nasdaq National Market under the symbol "LSCC."

                            ------------------------

    THE SECURITIES OFFERED HEREBY INVOLVE A HIGH DEGREE OF RISK. SEE "RISK
FACTORS" BEGINNING ON PAGE 6.

                             ---------------------

    NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES
COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES OR DETERMINED IF THIS
PROSPECTUS IS TRUTHFUL OR COMPLETE. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.

                  THIS PROSPECTUS IS DATED             , 1999
<PAGE>
    YOU SHOULD RELY ONLY ON THE INFORMATION CONTAINED IN OR INCORPORATED BY
REFERENCE IN THIS PROSPECTUS. WE HAVE NOT AUTHORIZED ANYONE TO PROVIDE YOU WITH
DIFFERENT INFORMATION. WE ARE NOT MAKING AN OFFER OF THESE SECURITIES IN ANY
STATE WHERE THE OFFER IS NOT PERMITTED. YOU SHOULD NOT ASSUME THAT THE
INFORMATION CONTAINED IN OR INCORPORATED BY REFERENCE IN THIS PROSPECTUS
SUPPLEMENT OR THE PROSPECTUS IS ACCURATE AS OF ANY DATE OTHER THAN THE DATE ON
THE FRONT OF THIS PROSPECTUS.

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                PAGE
                                                              --------
<S>                                                           <C>
Where You Can Find More Information.........................      3
Summary.....................................................      4
Risk Factors................................................      6
Use of Proceeds.............................................     13
Ratio of Earnings to Fixed Charges..........................     13
Selected Consolidated Financial Data........................     14
Description of Notes........................................     15
Description of Capital Stock................................     24
Certain Federal Income Tax Considerations...................     27
Selling Securityholders.....................................     33
Plan of Distribution........................................     37
Legal Matters...............................................     38
Experts.....................................................     38
</TABLE>

                                       2
<PAGE>
                      WHERE YOU CAN FIND MORE INFORMATION

    We file reports, proxy statements and other information with the Commission,
in accordance with the Securities Exchange Act of 1934. You may read and copy
our reports, proxy statements and other information filed by us at the public
reference facilities of the Commission at Room 1024, Judiciary Plaza, 450 Fifth
Street, N.W., Washington, D.C. 20549, and at the Commission's Regional Offices;
7 World Trade Center, 13th Floor, New York, New York 10048. Copies of such
materials can be obtained at prescribed rates from the Public Reference Section
of the Commission at 450 Fifth Street, N.W., Washington, D.C. 20549. Please call
the Commission at 1-800-SEC-0330 for further information about the public
reference rooms. Our reports, proxy statements and other information filed with
the Commission are available to the public over the Internet at the Commission's
World Wide Web site at http://www.sec.gov.

    The Commission allows us to "incorporate by reference" into this prospectus
the information we filed with the Commission. This means that we can disclose
important information by referring you to those documents. The information
incorporated by reference is considered to be a part of this prospectus.
Information that we file later with the Commission will automatically update and
supersede this information. We incorporate by reference the documents listed
below and any future filings made by us with the Commission under Sections
13(a), 13(c), 14 or 15(d) of the Exchange Act until our offering is complete:

    - Our Annual Report on Form 10-K, as amended, for the fiscal year ended
      April 3, 1999;

    - Our Quarterly Report on Form 10-Q for the fiscal quarter ended July 3,
      1999;

    - Our Quarterly Report on Form 10-Q for the fiscal quarter ended October 2,
      1999;

    - Our Proxy Statement for the 1999 annual meeting of stockholders;

    - Our Current Report on Form 8-K filed on June 25, 1999, and amended on
      August 20, 1999;

    - Our Current Report on Form 8-K filed on October 21, 1999;

    - Our Current Report on Form 8-K filed on November 8, 1999;

    - Our Current Report on Form 8-K filed on November 19, 1999; and

    - Our Current Report on Form 8-K filed on December 15, 1999.

    You may request a copy of these filings, at no cost, by writing or
telephoning us at the following address:

    Investor Relations Department
    Lattice Semiconductor Corporation
    5555 N.E. Moore Court
    Hillsboro, Oregon 97124-6421
    Telephone: (503) 268-8000

    You should rely only on the information incorporated by reference or
provided in this prospectus. We have not authorized anyone else to provide you
with different information. We are not making an offer of these securities in
any state where the offer is not permitted. You should not assume the
information in this prospectus is accurate as of any date other than the date on
the front of those documents.

                                       3
<PAGE>
                                    SUMMARY

    THIS SUMMARY HIGHLIGHTS SOME INFORMATION FROM THIS PROSPECTUS, AND IT MAY
NOT CONTAIN ALL OF THE INFORMATION THAT IS IMPORTANT TO YOU. IT IS QUALIFIED IN
ITS ENTIRETY BY THE MORE DETAILED INFORMATION AND CONSOLIDATED FINANCIAL
STATEMENTS, INCLUDING THE NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS,
INCLUDED OR INCORPORATED BY REFERENCE IN THIS PROSPECTUS. YOU SHOULD READ THE
FULL TEXT OF, AND CONSIDER CAREFULLY THE MORE SPECIFIC DETAILS CONTAINED IN,
THIS PROSPECTUS. WHEN USED IN THIS PROSPECTUS, THE TERMS "LATTICE," "WE," "OUR"
AND "US" REFER TO LATTICE SEMICONDUCTOR CORPORATION AND NOT TO THE SELLING
SECURITYHOLDERS.

    Lattice Semiconductor Corporation is the world's leading supplier of
in-system programmable, or ISP, logic devices and pioneered the application of
electrically erasable CMOS, or E(2)CMOS, silicon wafer manufacturing process
technology to programmable logic devices, or PLDs. We design, develop and market
both high- and low-density PLDs and related development system software. PLDs
are widely-used semiconductor components that can be configured by the end
customer as specific logic circuits, and enable the end customer to shorten
design cycle times and reduce development costs. Our end customers are primarily
original equipment manufacturers, or OEMs, in the field of data and
telecommunications, as well as computing, industrial and military systems. In
June 1999, we acquired Vantis Corporation, the programmable logic device
division of Advanced Micro Devices, or AMD, for approximately $500 million in
cash. We believe this acquisition will enable us to increase our share of the
PLD market, accelerate development of new products and technologies and provide
us access to Vantis' complementary customer base.

    We were incorporated in Oregon in 1983 and reincorporated in Delaware in
1985. Our principal offices are located at 5555 N.E. Moore Court, Hillsboro,
Oregon 97124, our telephone number is (503) 268-8000 and our website can be
accessed at www.latticesemi.com. Information contained in our website does not
constitute part of this prospectus.

                                       4
<PAGE>
                                  THE OFFERING

<TABLE>
<S>                                         <C>
Securities Offered........................  $260,000,000 principal amount of 4 3/4% Convertible
                                            Subordinated Notes due 2006.

Interest..................................  4 3/4% per year. We will pay interest on May 1 and
                                            November 1 of each year, beginning May 1, 2000.

Conversion................................  You may convert each note into common stock at any time
                                            on or before November 1, 2006 at a conversion price of
                                            $41.440 per share, subject to adjustment if certain
                                            events affecting our common stock occur.

Subordination.............................  The notes are subordinated to all senior indebtedness
                                            and to all debt and other liabilities of our
                                            subsidiaries. As of November 27, 1999, we had no senior
                                            indebtedness outstanding and approximately
                                            $78.8 million of indebtedness and other liabilities to
                                            which the notes were effectively subordinated. Neither
                                            we nor our subsidiaries are limited from incurring
                                            additional debt, including senior indebtedness, under
                                            the indenture.

Optional Redemption.......................  On or after November 6, 2002, we may redeem the notes at
                                            the redemption prices listed in this prospectus,
                                            together with accrued and unpaid interest.

Fundamental Change........................  You have the right, at your option, in the event of a
                                            fundamental change to require us to redeem your notes at
                                            100% of the principal amount of the notes to be redeemed
                                            plus accrued interest.

Use Of Proceeds...........................  We will not receive any of the proceeds from the sale by
                                            any selling securityholder of the notes or the
                                            underlying common stock.
</TABLE>

                                       5
<PAGE>
                                  RISK FACTORS

    BEFORE YOU INVEST IN THE NOTES OR SHARES OF COMMON STOCK UNDERLYING THE
NOTES, YOU SHOULD BE AWARE OF VARIOUS RISKS, INCLUDING THOSE DESCRIBED BELOW.
YOU SHOULD CAREFULLY CONSIDER THESE RISK FACTORS, TOGETHER WITH ALL OF THE OTHER
INFORMATION INCLUDED OR INCORPORATED BY REFERENCE IN THIS PROSPECTUS, BEFORE YOU
DECIDE WHETHER TO PURCHASE THE NOTES. THE RISKS SET OUT BELOW ARE NOT THE ONLY
RISKS WE FACE.

    IF ANY OF THE FOLLOWING RISKS OCCUR, OUR BUSINESS, FINANCIAL CONDITION AND
RESULTS OF OPERATIONS COULD BE MATERIALLY ADVERSELY AFFECTED. IN SUCH CASE, THE
TRADING PRICE OF THE NOTES AND COMMON STOCK COULD DECLINE, AND YOU MAY LOSE ALL
OR PART OF YOUR INVESTMENT.

    KEEP THESE RISK FACTORS IN MIND WHEN YOU READ "FORWARD-LOOKING" STATEMENTS
ELSEWHERE IN THIS PROSPECTUS AND IN THE DOCUMENTS INCORPORATED HEREIN BY
REFERENCE. THESE ARE STATEMENTS THAT RELATE TO OUR EXPECTATIONS FOR FUTURE
EVENTS AND TIME PERIODS. GENERALLY, THE WORDS "ANTICIPATE," "EXPECT," "INTEND"
AND SIMILAR EXPRESSIONS IDENTIFY FORWARD-LOOKING STATEMENTS. FORWARD-LOOKING
STATEMENTS INVOLVE RISKS AND UNCERTAINTIES, AND FUTURE EVENTS AND CIRCUMSTANCES
COULD DIFFER SIGNIFICANTLY FROM THOSE ANTICIPATED IN THE FORWARD-LOOKING
STATEMENTS.

RISKS RELATED TO OUR BUSINESS

    OUR WAFER SUPPLY COULD BE INTERRUPTED OR REDUCED AND RESULT IN A SHORTAGE OF
FINISHED PRODUCTS AVAILABLE FOR SALE

    We do not manufacture finished silicon wafers. Currently all of our silicon
wafers are manufactured by Seiko Epson in Japan, AMD in the United States and
the UMC Group, a group of affiliated companies, in Taiwan. If Seiko Epson,
through its U.S. affiliate Epson Electronics America, AMD or the UMC Group
significantly interrupts or reduces our wafer supply, our operating results
would be adversely affected.

    In the past, we have experienced delays in obtaining wafers and in securing
supply commitments from our foundries. At present, we anticipate that our supply
commitments are adequate. However, these existing supply commitments may not be
sufficient for us to satisfy customer demand in future periods. Additionally,
notwithstanding our supply commitments we may still have difficulty in obtaining
wafer deliveries consistent with the supply commitments. We negotiate wafer
prices and supply commitments on at least an annual basis. If Seiko Epson, Epson
Electronics America, AMD or the UMC Group reduces our supply commitment or
increases our wafer prices, and we cannot find alternative sources of wafer
supply, our operating results could be adversely affected.

    Many other factors that could disrupt our wafer supply are beyond our
control. Since worldwide manufacturing capacity for silicon wafers is limited
and inelastic, we could be adversely affected by significant industry-wide
increases in overall wafer demand or interruptions in wafer supply.
Additionally, although the recent earthquake in Taiwan has not had a material
adverse effect on our operating results, a future disruption of Seiko Epson's,
AMD's or the UMC Group's foundry operations as a result of a fire, earthquake or
other natural disaster could disrupt our wafer supply and could have an adverse
effect on our operating results.

    IF OUR FOUNDRY PARTNERS EXPERIENCE QUALITY OR YIELD PROBLEMS, WE MAY FACE A
SHORTAGE OF FINISHED PRODUCTS AVAILABLE FOR SALE

    We depend on our foundries to deliver reliable silicon wafers with
acceptable yields in a timely manner. As is common in our industry, we have
experienced wafer yield problems and delivery delays in the past. If our
foundries are unable to produce silicon wafers that meet our specifications,
with acceptable yields, for a prolonged period, our operating results could be
adversely affected.

                                       6
<PAGE>
    Substantially all of our revenue is derived from products based on a
specialized silicon wafer manufacturing process technology called E2CMOS. The
reliable manufacture of high performance E2CMOS semiconductor wafers is a
complicated and technically demanding process requiring:

    - a high degree of technical skill;

    - state-of-the-art equipment;

    - the absence of defects in the masks used to print circuits on a wafer;

    - the elimination of minute impurities and errors in each step of the
      fabrication process; and

    - effective cooperation between the wafer supplier and the circuit designer.

    As a result, our foundries may experience difficulties in achieving
acceptable quality and yield levels when manufacturing our silicon wafers.

    OUR PRODUCTS MAY NOT BE COMPETITIVE IF WE ARE UNSUCCESSFUL IN MIGRATING OUR
MANUFACTURING PROCESSES TO MORE ADVANCED TECHNOLOGIES

    In order to develop new products and maintain the competitiveness of
existing products, we need to migrate to more advanced wafer manufacturing
processes that utilize larger wafer sizes and smaller device geometries. We may
also utilize additional foundries. Since we depend upon foundries to provide
their facilities and support for our process technology development, we may
experience delays in the availability of advanced wafer manufacturing process
technologies at existing or new wafer fabrication facilities. As a result,
volume production of our advanced E2CMOS process technologies at the new fabs of
Seiko Epson, the UMC Group or future foundries may not be achieved. This could
have an adverse effect on our operating results.

    WE MAY BE UNSUCCESSFUL IN DEFINING, DEVELOPING OR SELLING NEW PRODUCTS
REQUIRED TO MAINTAIN OR EXPAND OUR BUSINESS

    As a semiconductor company, we operate in a dynamic environment marked by
rapid product obsolescence. Our future success depends on our ability to
introduce new or improved products that meet customer needs while achieving
acceptable margins. If we fail to introduce these new products in a timely
manner or these products fail to achieve market acceptance, our business and
financial condition will be adversely affected.

    The introduction of new products in a dynamic market environment presents
significant business challenges. Product development commitments and
expenditures must be made well in advance of product sales. The success of a new
product depends on accurate forecasts of long-term market demand and future
technology developments.

    Our future revenue growth is dependent on market acceptance of our new
proprietary ISP product families and the continued market acceptance of our
proprietary software development tools. The success of these products is
dependent on a variety of specific technical factors including:

    - successful product definition;

    - timely and efficient completion of product design;

    - timely and efficient implementation of wafer manufacturing and assembly
      processes;

    - product performance; and

    - the quality and reliability of the product.

    If, due to these or other factors, our new products do not achieve market
acceptance, our business and financial condition will be adversely affected.

                                       7
<PAGE>
    WE MAY EXPERIENCE UNEXPECTED DIFFICULTIES INTEGRATING VANTIS

    We acquired Vantis on June 15, 1999, and are currently in the process of
integrating Vantis with our other operations. If integration is unsuccessful,
more difficult or more time consuming than originally planned, we may incur
unexpected disruptions to our ongoing business. These disruptions may have an
adverse effect on our operations and financial results. Further, the following
specific factors may adversely affect our ability to integrate the business of
Vantis:

    - we may experience unexpected losses of key employees or customers;

    - we may experience difficulties or delays in conforming the standards,
      processes, procedures and controls of our two businesses;

    - we may experience unexpected costs and discover unexpected liabilities;

    - we may not achieve expected levels of revenue growth, cost reduction and
      profitability improvement; and

    - we may not be able to coordinate our new product and process development
      in a way which enables us to bring new technologies to the market in a
      timely manner.

    In addition, as part of our acquisition of Vantis, we entered into
arrangements with Vantis' former parent, AMD, for AMD to provide Vantis with
certain manufacturing support and administrative services. In the event AMD
fails to provide these services, or provides such services at a level of quality
and timeliness inconsistent with the historical delivery of such services, our
ability to integrate Vantis will be severely hampered and our business may
suffer.

    DETERIORATION OF CONDITIONS IN ASIA MAY DISRUPT OUR EXISTING SUPPLY
ARRANGEMENTS AND RESULT IN A SHORTAGE OF FINISHED PRODUCTS AVAILABLE FOR SALE

    Two of our three silicon wafer suppliers operate fabs located in Asia. Our
finished silicon wafers are assembled and tested by independent subcontractors
located in Hong Kong, Malaysia, the Philippines, South Korea, Taiwan and
Thailand. A prolonged interruption in our supply from any of these
subcontractors could have an adverse effect on our operating results.

    Although we have yet not experienced significant supply interruptions, the
economic, financial, social and political situation in Asia has recently been
volatile. Financial difficulties, governmental actions or restrictions,
prolonged work stoppages or any other difficulties experienced by these
suppliers may disrupt our supply and could have an adverse effect on our
operating results.

    Our wafer purchases from Seiko Epson are denominated in Japanese yen. The
value of the dollar with respect to the yen has fluctuated in the past and may
not remain stable in the future. Future substantial deterioration of dollar-yen
exchange rates could have an adverse effect on our operating results.

    EXPORT SALES ACCOUNT FOR A SUBSTANTIAL PORTION OF OUR REVENUES AND MAY
DECLINE IN THE FUTURE DUE TO ECONOMIC AND GOVERNMENTAL UNCERTAINTIES

    Our export sales are affected by unique risks frequently associated with
foreign economies including:

    - changes in local economic conditions;

    - exchange rate volatility;

    - governmental controls and trade restrictions;

    - export license requirements and restrictions on the export of technology;

    - political instability;

                                       8
<PAGE>
    - changes in tax rates, tariffs or freight rates;

    - interruptions in air transportation; and

    - difficulties in staffing and managing foreign sales offices.

    For example, our export sales have recently been affected by the Asian
economic crisis. Significant changes in the economic climate in the foreign
countries where we derive our export sales could have an adverse effect on our
operating results.

    IF OUR ASSEMBLY AND TEST SUBCONTRACTORS EXPERIENCE QUALITY OR YIELD
PROBLEMS, WE MAY FACE A SHORTAGE OF FINISHED PRODUCTS AVAILABLE FOR SALE

    We rely on subcontractors to assemble and test our devices with acceptable
quality and yield levels. As is common in our industry, we have experienced
quality and yield problems in the past. If we experience prolonged quality or
yield problems in the future, there could be an adverse effect on our operating
results.

    The majority of our revenue is derived from semiconductor devices assembled
in advanced packages. The assembly of advanced packages is a complex process
requiring:

    - a high degree of technical skill;

    - state-of-the-art equipment;

    - the absence of defects in lead frames used to attach semiconductor devices
      to the package;

    - the elimination of raw material impurities and errors in each step of the
      process; and

    - effective cooperation between the assembly subcontractor and the device
      manufacturer.

    As a result, our subcontractors may experience difficulties in achieving
acceptable quality and yield levels when assembling and testing our
semiconductor devices.

    THE CYCLICAL NATURE OF THE SEMICONDUCTOR INDUSTRY MAY LIMIT OUR ABILITY TO
MAINTAIN OR INCREASE REVENUE AND PROFIT LEVELS DURING FUTURE INDUSTRY DOWNTURNS

    The semiconductor industry is highly cyclical, to a greater extent than
other less dynamic or less technology-driven industries. In the past, our
financial performance has been negatively affected by significant downturns in
the semiconductor industry as a result of:

    - the cyclical nature of the demand for the products of semiconductor
      customers;

    - general reductions in inventory levels by customers;

    - excess production capacity; and

    - accelerated declines in average selling prices.

    If these or other conditions in the semiconductor industry occur in the
future, there could be an adverse effect on our operating results.

    OUR FUTURE QUARTERLY OPERATING RESULTS MAY FLUCTUATE AND THEREFORE MAY FAIL
TO MEET EXPECTATIONS

    Our quarterly operating results have fluctuated in the past and may continue
to fluctuate in the future. Consequently, our operating results may fail to meet
the expectations of analysts and investors. As a result of industry conditions
and the following specific factors, our quarterly operating results are more
likely to fluctuate and are more difficult to predict than a typical
non-technology company of our size and maturity:

    - general economic conditions in the countries where we sell our products;

    - the timing of our and our competitors' new product introductions;

                                       9
<PAGE>
    - product obsolescence;

    - the scheduling, rescheduling and cancellation of large orders by our
      customers;

    - the cyclical nature of demand for our customers' products;

    - our ability to develop new process technologies and achieve volume
      production at the new fabs of Seiko Epson and the UMC Group or at another
      foundry;

    - changes in manufacturing yields;

    - adverse movements in exchange rates, interest rates or tax rates; and

    - the availability of adequate supply commitments from our wafer foundries
      and assembly and test subcontractors.

    As a result of these factors, our past financial results are not necessarily
a good predictor of our future results.

    WE MAY NOT BE ABLE TO SUCCESSFULLY COMPETE IN THE HIGHLY COMPETITIVE
SEMICONDUCTOR INDUSTRY

    The semiconductor industry is intensely competitive and many of our direct
and indirect competitors have substantially greater financial, technological,
manufacturing, marketing and sales resources. If we are unable to compete
successfully in this environment, our future results will be adversely affected.

    The current level of competition in the programmable logic market is high
and may increase as our market expands. We currently compete directly with
companies that have licensed our products and technology or have developed
similar products. We also compete indirectly with numerous semiconductor
companies that offer products and solutions based on alternative technologies.
These direct and indirect competitors are established multinational
semiconductor companies as well as emerging companies. We also may experience
significant competition from foreign companies in the future.

    WE MAY FAIL TO RETAIN OR ATTRACT THE SPECIALIZED TECHNICAL AND MANAGEMENT
PERSONNEL REQUIRED TO SUCCESSFULLY OPERATE OUR BUSINESS

    To a greater degree than most non-technology companies or larger technology
companies, our future success depends on our ability to attract and retain
highly qualified technical and management personnel. As a mid-sized company, we
are particularly dependent on a relatively small group of key employees.
Competition for skilled technical and management employees is intense within our
industry. As a result, we may not be able to retain our existing key technical
and management personnel. In addition, we may not be able to attract additional
qualified employees in the future. If we are unable to retain existing key
employees or are unable to hire new qualified employees, our operating results
could be adversely affected.

    IF WE ARE UNABLE TO ADEQUATELY PROTECT OUR INTELLECTUAL PROPERTY RIGHTS, OUR
FINANCIAL RESULTS AND COMPETITIVE POSITION MAY SUFFER

    Our success depends in part on our proprietary technology. However, we may
fail to adequately protect this technology. As a result, we may lose our
competitive position or face significant expense to protect or enforce our
intellectual property rights.

    We intend to continue to protect our proprietary technology through patents,
copyrights and trade secrets. Despite this intention, we may not be successful
in achieving adequate protection. Claims allowed on any of our patents may not
be sufficiently broad to protect our technology. Patents issued to us also may
be challenged, invalidated or circumvented. Finally, our competitors may develop
similar technology independently.

                                       10
<PAGE>
    Companies in the semiconductor industry vigorously pursue their intellectual
property rights. If we become involved in protracted intellectual property
disputes or litigation we may utilize substantial financial and management
resources, which could have an adverse effect on our operating results. We may
also be subject to future intellectual property claims or judgements. If these
were to occur, we may not be able to obtain a license on favorable terms or
without our operating results being adversely affected.

    WE ARE SUBJECT TO RISKS RELATED TO YEAR 2000 PROBLEMS

    We are currently working to address the potential impact of the Year 2000 on
the processing of information by our computerized systems, including interfaces
to our business partners.

    In June 1999, we completed our planned Year 2000 compliance activities with
respect to our products and internal systems, software, equipment and
facilities. Based solely on these activities, management believes that all
products and material internal systems, software, equipment and facilities are
currently Year 2000 compliant. We do not anticipate that potential Year 2000
issues will have a material adverse impact on our financial position or
operating results. In the aggregate, approximately $2.0 million in expenses were
incurred to fund Year 2000 compliance activities.

    However, we could be adversely impacted if any of our critical business
partners were to experience a severe business interruption due to a failure to
address their internal Year 2000 issues in a timely manner. The most reasonably
likely worst case Year 2000 scenario is a temporary disruption in supplier
deliveries or customer shipments. If a severe disruption occurs in either of
these two areas and is not corrected in a timely manner, a revenue or profit
shortfall may result in the first half of calendar year 2000. Based solely on
responses received to date from our business partners, we have no reason to
believe that there will be such a material adverse impact. However, if the
responses received from our business partners are inaccurate or happen to
change, then there could be such a material adverse impact. Management is
evaluating Year 2000 business interruption scenarios and developing appropriate
contingency plans.

RISKS RELATED TO THIS OFFERING

    THE NOTES ARE SUBORDINATED

    The notes are unsecured and subordinated in right of payment to all of our
existing and future senior indebtedness. In the event of our bankruptcy,
liquidation or reorganization or upon acceleration of the notes due to an event
of default under the indenture and in certain other events, our assets will be
available to pay obligations on the notes only after all senior indebtedness has
been paid. As a result, there may not be sufficient assets remaining to pay
amounts due on any or all of the outstanding notes. The notes are also
effectively subordinated to the liabilities, including trade payables, of any of
our subsidiaries. Neither we nor our subsidiaries are prohibited from incurring
debt, including senior indebtedness, under the indenture. If we or our
subsidiaries were to incur additional debt or liabilities, our ability to pay
our obligations on the notes could be adversely affected. As of November 27,
1999, we had no senior indebtedness outstanding and had approximately
$78.8 million of debt and other liabilities outstanding. We may from time to
time incur additional debt, including senior indebtedness. Our subsidiaries may
also from time to time incur other additional debt and liabilities. See
"Description of Notes--Subordination of Notes."

    LATTICE MAY BE UNABLE TO REDEEM THE NOTES UPON A FUNDAMENTAL CHANGE

    We may be unable to redeem the notes in the event of a fundamental change.
Upon a fundamental change, you may require us to redeem all or a portion of your
notes. If a fundamental change were to occur, we may not have enough funds to
pay the redemption price for all tendered notes. Any future credit agreements or
other agreements relating to our indebtedness may expressly prohibit the
redemption of the notes upon a fundamental change or may provide that a
fundamental change constitutes an event of default under that agreement. If a
fundamental change occurs at a time when we are prohibited from

                                       11
<PAGE>
redeeming the notes, we could seek the consent of our lenders to redeem the
notes or could attempt to refinance this debt. If we do not obtain a consent, we
could not redeem the notes. Our failure to redeem tendered notes would
constitute an event of default under the indenture, which might constitute a
default under the terms of our other indebtedness. In such circumstances, or if
a fundamental change would constitute an event of default under our senior
indebtedness, the subordination provisions of the indenture would restrict
payments to the holders of notes. The term "fundamental change" is limited to
certain specified transactions and may not include other events that might
adversely affect our financial condition. Our obligation to offer to redeem the
notes upon a fundamental change would not necessarily afford you protection in
the event of a highly leveraged transaction, reorganization, merger or similar
transaction involving Lattice. See "Description of Notes--Redemption at Option
of the Holder."

    A PUBLIC MARKET MAY NOT DEVELOP FOR THE NOTES

    The initial purchasers in the initial private placement have advised us that
they intend to make a market in the notes. However, the initial purchasers are
not obligated to make a market in the notes and may discontinue this market
making activity at any time without notice. In addition, market making activity
by the initial purchasers will be subject to the limits imposed by the
Securities Act and the Exchange Act. As a result, we cannot assure you that any
market for the notes will develop or, if one does develop, that it will be
maintained. If an active market for the notes fails to develop or be sustained,
the trading price of the notes could be materially adversely affected.

    OUR STOCK PRICE MAY CONTINUE TO EXPERIENCE LARGE SHORT-TERM FLUCTUATIONS
WHICH MAY SIGNIFICANTLY AFFECT THE TRADING PRICE OF THE NOTES

    In recent years, the price of our common stock has fluctuated greatly.
Fluctuations in the trading price of our common stock will affect the trading
price of the notes. These price fluctuations have been rapid and severe and have
left investors little time to react. The price of our common stock may continue
to fluctuate greatly in the future due to a variety of company specific factors,
including:

    - quarter to quarter variations in our operating results;

    - shortfalls in revenue or earnings from levels expected by securities
      analysts; and

    - announcements of technological innovations or new products by other
      companies.

                                       12
<PAGE>
                                USE OF PROCEEDS

    We will not receive any proceeds from the sale by any selling securityholder
of the notes or the underlying common stock.

                       RATIO OF EARNINGS TO FIXED CHARGES

    The ratio of earnings to fixed charges for each of the periods indicated is
as follows:

<TABLE>
<CAPTION>
                                                                                                          SIX MONTHS
                                                              FISCAL YEAR ENDED                             ENDED
                                            ------------------------------------------------------   --------------------
                                                                  MARCH 29,   MARCH 28,   APRIL 3,   SEPT. 26,   OCT. 2,
                                              1995       1996       1997        1998        1999       1998        1999
                                            --------   --------   ---------   ---------   --------   ---------   --------
<S>                                         <C>        <C>        <C>         <C>         <C>        <C>         <C>
Ratio of earnings to fixed charges.......     152x       194x       209x        254x        158x       164x            --
</TABLE>

    These computations include us and our consolidated subsidiaries. For these
ratios, "earnings" represents income before taxes plus fixed charges. "Fixed
charges" consists of:

    - interest expense plus the portion of rent expense under operating leases
      deemed by us to be representative of the interest factor, and

    - amortization of debt issuance costs.

    Lattice would have had to generate additional earnings of $83.1 million for
the six-month period ended October 2, 1999 to achieve a ratio of 1:1.

                                       13
<PAGE>
                      SELECTED CONSOLIDATED FINANCIAL DATA

    The following selected consolidated financial data should be read in
conjunction with our consolidated financial statements, related notes and other
financial information incorporated herein by reference. The consolidated
statement of operations data for the fiscal years ended April 1, 1995,
March 30, 1996, March 29, 1997, March 28, 1998 and April 3, 1999 and the
consolidated balance sheet data as of April 1, 1995, March 30, 1996, March 29,
1997, March 28, 1998 and April 3, 1999 are derived from the audited consolidated
financial statements previously filed with the SEC. The consolidated statement
of operations data for the six months ended September 26, 1998 and October 2,
1999 and the consolidated balance sheet data as of September 26, 1998 and
October 2, 1999 are derived from our unaudited consolidated financial statements
and include, in the opinion of management, all adjustments, including normal
recurring adjustments with the exception of the non-recurring in-process
research and development charge, relating to the Vantis acquisition, necessary
to present fairly the financial information therein. These results are not
necessarily indicative of the results that may be expected for future periods.
All per share data below has been adjusted to reflect a two-for-one stock split
effected in the form of a stock dividend that was paid on September 16, 1999.

<TABLE>
<CAPTION>
                                                               FISCAL YEAR ENDED                        SIX MONTHS ENDED
                                            -------------------------------------------------------   ---------------------
                                            APR. 1,    MAR. 30,    MAR. 29,    MAR. 28,    APR. 3,    SEPT. 26,    OCT. 2,
                                              1995       1996        1997        1998        1999        1998      1999(2)
                                            --------   ---------   ---------   ---------   --------   ----------   --------
                                                                                                           (UNAUDITED)
<S>                                         <C>        <C>         <C>         <C>         <C>        <C>          <C>
                                                            (IN THOUSANDS, EXCEPT PER SHARE AND RATIO DATA)
CONSOLIDATED STATEMENT OF OPERATIONS
  DATA:
Revenue..................................   $144,083   $198,167    $204,089    $245,894    $200,072     $96,116    $154,711
Costs and expenses:
  Cost of products sold..................     58,936     82,216      83,736      98,883      78,440      38,152      62,652
  Research and development...............     22,859     26,825      27,829      32,012      33,190      15,815      27,753
  Selling, general and administrative....     25,020     31,323      33,558      39,934      36,818      18,010      31,238
  In-process research and development....         --         --          --          --          --          --      89,003
  Amortization of intangible assets......         --         --          --          --          --          --      25,291
                                            --------   --------    --------    --------    --------     -------    --------
    Total costs and expenses.............    106,815    140,364     145,123     170,829     148,448      71,977     235,937
Income (loss) from operations............     37,268     57,803      58,966      75,065      51,624      24,139     (81,226)
Other income (expense), net..............      3,349      5,442       8,712      10,643      10,668       5,026      (1,840)
                                            --------   --------    --------    --------    --------     -------    --------
Income (loss) before provision (benefit)
  for income taxes.......................     40,617     63,245      67,678      85,708      62,292      29,165     (83,066)
Provision (benefit) for income taxes.....     13,651     21,461      22,673      29,141      20,246       9,479     (26,933)
                                            --------   --------    --------    --------    --------     -------    --------
Net income (loss)........................   $ 26,966   $ 41,784    $ 45,005    $ 56,567    $ 42,046     $19,686    $(56,133)
                                            ========   ========    ========    ========    ========     =======    ========
Basic net income (loss) per share........   $    .72   $   1.03    $   1.00    $   1.22    $    .90     $   .42    $  (1.18)
                                            ========   ========    ========    ========    ========     =======    ========
Diluted net income (loss) per share......   $    .70   $   1.00    $    .98    $   1.18    $    .88     $   .41    $  (1.18)
                                            ========   ========    ========    ========    ========     =======    ========
Shares used in per share calculations:
Basic net income (loss)..................     37,254     40,654      44,920      46,478      46,974      46,992      47,483
Diluted net income (loss)................     38,328     41,958      45,946      47,788      47,638      47,474      47,483
OTHER DATA:
Ratio of earnings to fixed charges(1)....        152x       194x        209x        254x        158x        164x      --
</TABLE>

<TABLE>
<CAPTION>
                                                                     AS OF                                    AS OF
                                            -------------------------------------------------------   ---------------------
                                            APR. 1,    MAR. 30,    MAR. 29,    MAR. 28,    APR. 3,    SEPT. 26,    OCT. 2,
                                              1995       1996        1997        1998        1999        1998      1999(2)
                                            --------   ---------   ---------   ---------   --------   ----------   --------
<S>                                         <C>        <C>         <C>         <C>         <C>        <C>          <C>
                                                                                                           (UNAUDITED)
<CAPTION>
                                                                            (IN THOUSANDS)
<S>                                         <C>        <C>         <C>         <C>         <C>        <C>          <C>
CONSOLIDATED BALANCE SHEET DATA:
Cash, cash equivalents and short-term
  investments............................   $ 88,810   $215,170    $228,647    $267,110    $319,434    $287,072    $135,274
Working capital..........................    106,021    244,649     267,669     283,678     324,204     295,253      63,105
Total assets.............................    192,917    342,935     403,462     489,066     540,896     502,538     830,815
Bank borrowings, net of current
  portion................................         --         --          --          --          --          --     182,500
Stockholders' equity.....................    157,797    298,768     360,491     434,686     483,734     452,244     465,241
</TABLE>

- ------------------------------
(1) Computed by dividing (a) earnings before taxes adjusted for fixed charges by
    (b) fixed charges, which includes interest expense plus the portion of rent
    expense under operating leases deemed by Lattice to be representative of the
    interest factor, plus amortization of debt issuance costs. Lattice would
    have had to generate additional earnings of $83.1 million for the six month
    period ended October 2, 1999 to achieve a ratio of 1:1.
(2) Includes our acquisition of Vantis in June 1999.

                                       14
<PAGE>
                              DESCRIPTION OF NOTES

    The notes were issued under an indenture to be dated as of November 1, 1999,
between Lattice and State Street Bank and Trust Company of California, N.A., as
trustee. A copy of the indenture has been filed as an exhibit to this
registration statement.

    The following description is a summary of the material provisions of the
notes and the indenture. It does not purport to be complete. This summary is
subject to and is qualified by reference to all the provisions of the indenture,
including the definitions of certain terms used in the indenture. Wherever
particular provisions or defined terms of the indenture or form of note are
referred to, these provisions or defined terms are incorporated in this
prospectus by reference.

    As used in this "Description of Notes" section, references to "Lattice,"
"we," "our" or "us" refer solely to Lattice Semiconductor Corporation and not
its subsidiaries.

GENERAL

    We issued $260,000,000 of notes in a private placement in October 1999. The
notes are general unsecured obligations of Lattice. Our payment obligations
under the notes are subordinated to our senior indebtedness as described under
"--Subordination of Notes." The notes are convertible into common stock as
described under "--Conversion of Notes." The notes were issued in denominations
of $1,000 and multiples of $1,000. The notes will mature on November 1, 2006
unless earlier converted, redeemed at our option or redeemed at your option upon
a fundamental change.

    We are not subject to any financial covenants under the indenture. In
addition, we are not restricted under the indenture from paying dividends,
incurring debt, including senior indebtedness, or issuing or repurchasing our
securities.

    You are not afforded protection in the event of a highly leveraged
transaction or a change in control of Lattice under the indenture except to the
extent described below under "--Redemption at Option of the Holder."

    The interest rate on the notes is 4 3/4% per year. We will pay interest on
May 1 and November 1 of each year, beginning May 1, 2000 to record holders at
the close of business on the preceding April 15 and October 15, as the case may
be, except:

    - interest payable upon redemption will be paid to the person to whom
      principal is payable, unless the redemption date is an interest payment
      date; and

    - as set forth in the next sentence.

    In case you convert your note into common stock during the period after any
record date but prior to the next interest payment date either:

    - we will not be required to pay interest on the interest payment date if
      the note has been called for redemption on a redemption date that occurs
      during this period; or

    - we will not be required to pay interest on the interest payment date if
      the note is to be redeemed in connection with a fundamental change on a
      repurchase date that occurs during this period; or

    - if otherwise, any note not called for redemption that is submitted for
      conversion during this period must also be accompanied by an amount equal
      to the interest due on the interest payment date on the converted
      principal amount, unless at the time of conversion there is a default in
      the payment of interest on the notes. See "--Conversion of Notes."

    We will maintain an office in the Borough of Manhattan, the City of New York
for the payment of interest, which shall initially be an office or agency of the
trustee.

                                       15
<PAGE>
    We may pay interest either:

    - by check mailed to your address as it appears in the note register,
      provided that if you are a holder with an aggregate principal amount in
      excess of $2.0 million, you shall be paid, at your written election, by
      wire transfer in immediately available funds; or

    - by transfer to an account maintained by you in the United States.

    However, payments to The Depository Trust Company, New York, New York, which
we refer to as DTC, will be made by wire transfer of immediately available funds
to the account of DTC or its nominee. Interest will be computed on the basis of
a 360-day year composed of twelve 30-day months.

CONVERSION OF NOTES

    You may convert your note, in whole or in part, into common stock through
the final maturity date of the notes, subject to prior redemption of the notes.
If we call notes for redemption, you may convert the notes only until the close
of business on the business day prior to the redemption date unless we fail to
pay the redemption price. If you have submitted your notes for redemption upon a
fundamental change, you may convert your notes only if you withdraw your
conversion election. You may convert your notes in part so long as this part is
$1,000 principal amount or an integral multiple of $1,000. If any notes not
called for redemption are converted after a record date for any interest payment
date and prior to the next interest payment date, the notes must be accompanied
by an amount equal to the interest payable on the interest payment date on the
converted principal amount unless a default exists at the time of conversion.

    The initial conversion price for the notes is $41.440 per share of common
stock, subject to adjustment as described below. We will not issue fractional
shares of common stock upon conversion of notes. Instead, we will pay cash equal
to the market price of the common stock on the business day prior to the
conversion date. Except as described below, you will not receive any accrued
interest or dividends upon conversion.

    To convert your note into common stock you must:

    - complete and manually sign the conversion notice on the back of the note
      or facsimile of the conversion notice and deliver this notice to the
      conversion agent;

    - surrender the note to the conversion agent;

    - if required, furnish appropriate endorsements and transfer documents;

    - if required, pay all transfer or similar taxes; and

    - if required, pay funds equal to interest payable on the next interest
      payment date.

The date you comply with these requirements is the conversion date under the
indenture.

    We will adjust the conversion price if the following events occur:

    (1) we issue common stock as a dividend or distribution on our common stock;

    (2) we issue to all holders of common stock certain rights or warrants to
       purchase our common stock;

    (3) we subdivide or combine our common stock;

    (4) we distribute to all common stock holders capital stock, evidences of
       indebtedness or assets, including securities but excluding:

       - rights or warrants listed in (2) above;

       - dividends or distributions listed in (1) above; and

       - cash distributions listed in (5) below;

                                       16
<PAGE>
    (5) we distribute cash, excluding any quarterly cash dividend on our common
       stock to the extent that the aggregate cash dividend per share of common
       stock in any quarter does not exceed the greater of:

       - the amount per share of common stock of the next preceding quarterly
         cash dividend on the common stock to the extent that the preceding
         quarterly dividend did not require an adjustment of the conversion
         price pursuant to this clause (5), as adjusted to reflect subdivisions
         or combinations of the common stock, and

       - 3.75% of the average of the last reported sale price of the common
         stock during the ten trading days immediately prior to the declaration
         date of the dividend, and excluding any dividend or distribution in
         connection with the liquidation, dissolution or winding up of Lattice.

       If an adjustment is required to be made under this clause (5) as a result
       of a distribution that is a quarterly dividend, the adjustment would be
       based upon the amount by which the distribution exceeds the amount of the
       quarterly cash dividend permitted to be excluded pursuant to this
       clause (5). If an adjustment is required to be made under this
       clause (5) as a result of a distribution that is not a quarterly
       dividend, the adjustment would be based upon the full amount of the
       distribution;

    (6) we or one of our subsidiaries makes a payment in respect of a tender
       offer or exchange offer for our common stock to the extent that the cash
       and value of any other consideration included in the payment per share of
       common stock exceeds the current market price per share of common stock
       on the trading day next succeeding the last date on which tenders or
       exchanges may be made pursuant to such tender or exchange offer; and

    (7) someone other than us or one of our subsidiaries makes a payment in
       respect of a tender offer or exchange offer in which, as of the closing
       date of the offer, our board of directors is not recommending rejection
       of the offer. The adjustment referred to in this clause (7) will only be
       made if:

       - the tender offer or exchange offer is for an amount that increases the
         offeror's ownership of common stock to more than 25% of the total
         shares of common stock outstanding, and

       - the cash and value of any other consideration included in the payment
         per share of common stock exceeds the current market price per share of
         common stock on the business day next succeeding the last date on which
         tenders or exchanges may be made pursuant to the tender or exchange
         offer.

However, the adjustment referred to in this clause (7) will generally not be
made if as of the closing of the offer, the offering documents disclose a plan
or an intention to cause us to engage in a consolidation or merger of Lattice or
a sale of all or substantially all of our assets.

    Under our rights plan, upon conversion of the notes into common stock, to
the extent that the rights plan is still in effect upon conversion, you will
receive, in addition to the common stock, the rights under the rights plan
whether or not the rights have separated from the common stock at the time of
conversion, subject to certain limited exceptions.

    In the event of:

    - any reclassification of our common stock; or

    - a consolidation, merger or combination involving Lattice; or

    - a sale or conveyance to another person of the property and assets of
      Lattice as an entirety or substantially as an entirety,

                                       17
<PAGE>
in which holders of common stock would be entitled to receive stock, other
securities, other property, assets or cash for their common stock, holders of
notes will generally be entitled thereafter to convert their notes into the same
type of consideration received by common stock holders immediately prior to one
of these types of events.

    You may in certain situations be deemed to have received a distribution
subject to United States federal income tax as a dividend in the event of any
taxable distribution to holders of common stock or in certain other situations
requiring a conversion price adjustment. See "Certain Federal Income Tax
Considerations."

    We may from time to time reduce the conversion price for a period of at
least 20 days if our board of directors has made a determination that this
reduction would be in our best interests. Any such determination by our board
will be conclusive. We would give holders at least 15 days' notice of any
reduction in the conversion price. In addition, we may reduce the conversion
price if our board of directors deems it advisable to avoid or diminish any
income tax to holders of common stock resulting from any stock or rights
distribution. See "Certain Federal Income Tax Considerations."

    We will not be required to make an adjustment in the conversion price unless
the adjustment would require a change of at least 1% in the conversion price.
However, we will carry forward any adjustments that are less than one percent of
the conversion price. Except as described above in this section, we will not
adjust the conversion price for any issuance of our common stock or convertible
or exchangeable securities or rights to purchase our common stock or convertible
or exchangeable securities.

OPTIONAL REDEMPTION BY LATTICE

    The notes are not entitled to any sinking fund. At any time on or after
November 6, 2002, we may redeem the notes in whole or in part at the following
prices expressed as a percentage of the principal amount:

<TABLE>
<CAPTION>
PERIOD                                                       REDEMPTION PRICE
- ------                                                       ----------------
<S>                                                          <C>
Beginning on November 6, 2002 and ending on October 31,
  2003......................................................     102.71%
Beginning on November 1, 2003 and ending on October 31,
  2004......................................................     102.04%
Beginning on November 1, 2004 and ending on October 31,
  2005......................................................     101.36%
Beginning on November 1, 2005 and ending on October 31,
  2006......................................................     100.68%
</TABLE>

and 100% at November 1, 2006. In each case, we will pay interest to, but
excluding, the redemption date. If the redemption date is an interest payment
date, interest shall be paid to the record holder on the relevant record date.
We are required to give notice of redemption by mail to holders not more than 60
but not less than 30 days prior to the redemption date.

    If less than all of the outstanding notes are to be redeemed, the trustee
shall select the notes to be redeemed in principal amounts of $1,000 or integral
multiples of $1,000 by lot, pro rata or by another method the trustee considers
fair and appropriate. If a portion of your notes is selected for partial
redemption and you convert a portion of your notes, the converted portion shall
be deemed to be of the portion selected for redemption.

    We may not redeem the notes if we have failed to pay any interest or premium
on the notes and such failure to pay is continuing. We will issue a press
release if we redeem the notes.

REDEMPTION AT OPTION OF THE HOLDER

    If a fundamental change occurs prior to November 1, 2006, you may require us
to redeem your notes, in whole or in part, on a repurchase date that is 30 days
after the date of our notice of the fundamental change. The notes will be
redeemable in multiples of $1,000 principal amount.

                                       18
<PAGE>
    We shall redeem the notes at a price equal to 100% of the principal amount
to be redeemed, plus accrued interest to, but excluding, the repurchase date. If
the repurchase date is an interest payment date, we will pay interest to the
record holder on the relevant record date.

    We will mail to all record holders a notice of the fundamental change within
10 days after the occurrence of the fundamental change. We are also required to
deliver to the trustee a copy of the fundamental change notice. If you elect to
redeem your notes, you must deliver to us or our designated agent, on or before
the 30th day after the date of our fundamental change notice, your redemption
notice and any notes to be redeemed, duly endorsed for transfer. We will
promptly pay the redemption price for notes surrendered for redemption following
the repurchase date.

    A "fundamental change" is any transaction or event in connection with which
all or substantially all of our common stock shall be exchanged for, converted
into, acquired for or constitute solely the right to receive, consideration,
whether by means of an exchange offer, liquidation, tender offer, consolidation,
merger, combination, reclassification, recapitalization or otherwise, which is
not all or substantially all common stock listed on, or that will be listed on
or immediately after the transaction or event on:

    - a United States national securities exchange, or

    - approved for quotation on the Nasdaq National Market or any similar United
      States system of automated dissemination of quotations of securities
      prices.

    We will comply with any applicable provisions of Rule 13e-4 and any other
tender offer rules under the Exchange Act in the event of a fundamental change.

    These fundamental change redemption rights could discourage a potential
acquiror of Lattice. However, this fundamental change redemption feature is not
the result of management's knowledge of any specific effort to obtain control of
Lattice by means of a merger, tender offer or solicitation, or part of a plan by
management to adopt a series of anti-takeover provisions. The term "fundamental
change" is limited to certain specified transactions and may not include other
events that might adversely affect our financial condition. Our obligation to
offer to redeem the notes upon a fundamental change would not necessarily afford
you protection in the event of a highly leveraged transaction, reorganization,
merger or similar transaction involving Lattice.

    We may be unable to redeem the notes in the event of a fundamental change.
If a fundamental change were to occur, we may not have enough funds to pay the
redemption price for all tendered notes. Any future credit agreements or other
agreements relating to our indebtedness may expressly prohibit the repurchase of
the notes upon a fundamental change or may provide that a fundamental change
constitutes an event of default under that agreement. If a fundamental change
occurs at a time when we are prohibited from purchasing or redeeming notes, we
could seek the consent of our lenders to redeem the notes or could attempt to
refinance this debt. If we do not obtain a consent, we could not purchase or
redeem the notes. Our failure to redeem tendered notes would constitute an event
of default under the indenture, which might constitute a default under the terms
of our other indebtedness. In such circumstances, or if a fundamental change
would constitute an event of default under our senior indebtedness, the
subordination provisions of the indenture would restrict payments to the holders
of notes.

SUBORDINATION OF NOTES

    Payment on the notes will, to the extent provided in the indenture, be
subordinated in right of payment to the prior payment in full of all of our
senior indebtedness. The notes also are effectively subordinated to all debt and
other liabilities, including trade payables and lease obligations, if any, of
our subsidiaries.

    Upon any distribution of our assets upon any dissolution, winding up,
liquidation or reorganization, the payment of the principal of, or premium, if
any, interest, and liquidated damages, if any, on the notes

                                       19
<PAGE>
will be subordinated in right of payment to the prior payment in full in cash or
other payment satisfactory to the holders of senior indebtedness of all senior
indebtedness. In the event of any acceleration of the notes because of an event
of default, the holders of any outstanding senior indebtedness would be entitled
to payment in full in cash or other payment satisfactory to the holders of
senior indebtedness of all senior indebtedness obligations before the holders of
the notes are entitled to receive any payment or distribution. We are required
under the indenture to promptly notify holders of senior indebtedness if payment
of the notes is accelerated because of an event of default.

    We may not make any payment on the notes if:

    - a default in the payment of designated senior indebtedness occurs and is
      continuing beyond any applicable period of grace (called a "payment
      default"); or

    - a default other than a payment default on any designated senior
      indebtedness occurs and is continuing that permits holders of designated
      senior indebtedness to accelerate its maturity, or in the case of a lease,
      a default occurs and is continuing that permits the lessor to either
      terminate the lease or require us to make an irrevocable offer to
      terminate the lease following an event of default under the lease, and the
      trustee receives a notice of such default (called a "payment blockage
      notice") from us or any other person permitted to give such notice under
      the indenture (called a "non-payment default").

    We may resume payments and distributions on the notes:

    - in case of a payment default, upon the date on which such default is cured
      or waived or ceases to exist; and

    - in case of a non-payment default, the earlier of the date on which such
      nonpayment default is cured or waived or ceases to exist or 179 days after
      the date on which the payment blockage notice is received, if the maturity
      of the designated senior indebtedness has not been accelerated, or in the
      case of any lease, 179 days after notice is received if we have not
      received notice that the lessor under such lease has exercised its right
      to terminate the lease or require us to make an irrevocable offer to
      terminate the lease following an event of default under the lease.

    No new period of payment blockage may be commenced pursuant to a payment
blockage notice unless 365 days have elapsed since the initial effectiveness of
the immediately prior payment blockage notice. No non-payment default that
existed or was continuing on the date of delivery of any payment blockage notice
shall be the basis for any later payment blockage notice.

    If the trustee or any holder of the notes receives any payment or
distribution of our assets in contravention of the subordination provisions on
the notes before all senior indebtedness is paid in full in cash or other
payment satisfactory to holders of senior indebtedness then such payment or
distribution will be held in trust for the benefit of holders of senior
indebtedness or their representatives to the extent necessary to make payment in
full in cash or payment satisfactory to the holders of senior indebtedness of
all unpaid senior indebtedness.

    In the event of our bankruptcy, dissolution or reorganization, holders of
senior indebtedness may receive more, ratably, and holders of the notes may
receive less, ratably, than our other creditors. This subordination will not
prevent the occurrence of any event of default under the indenture.

    The notes are exclusively obligations of Lattice. A substantial portion of
our operations are conducted through our subsidiaries. As a result, our cash
flow and our ability to service our debt, including the notes, is dependent upon
the earnings of our subsidiaries. In addition, we are dependent on the
distribution of earnings, loans or other payments by our subsidiaries to us.

                                       20
<PAGE>
    Our subsidiaries are separate and distinct legal entities. Our subsidiaries
have no obligation to pay any amounts due on the notes. Our subsidiaries are not
required to provide us with funds for our payment obligations, whether by
dividends, distributions, loans or other payments. In addition, any payment of
dividends, distributions, loans or advances by our subsidiaries to us could be
subject to statutory or contractual restrictions. Payments to us by our
subsidiaries will also be contingent upon our subsidiaries' earnings and
business considerations.

    Our right to receive any assets of any of our subsidiaries upon their
liquidation or reorganization, and therefore the right of the holders to
participate in those assets, will be effectively subordinated to the claims of
that subsidiary's creditors, including trade creditors. In addition, even if we
were a creditor to any of our subsidiaries, our rights as a creditor would be
subordinate to any security interest in the assets of our subsidiaries and any
indebtedness of our subsidiaries senior to that held by us.

    As of November 27, 1999, we had no senior indebtedness outstanding, and had
approximately $78.8 million of debt and other liabilities outstanding. Neither
we nor our subsidiaries are prohibited from incurring debt, including senior
indebtedness, under the indenture. We may from time to time incur additional
debt, including senior indebtedness. Our subsidiaries may also from time to time
incur other additional debt and liabilities.

    We are obligated to pay reasonable compensation to the trustee and to
indemnify the trustee against certain losses, liabilities or expenses incurred
by the trustee in connection with its duties relating to the notes. The
trustee's claims for these payments will generally be senior to those of
noteholders in respect of all funds collected or held by the trustee.

CERTAIN DEFINITIONS

    "DESIGNATED SENIOR INDEBTEDNESS" shall mean senior indebtedness under the
credit agreement and our obligations under any other particular senior
indebtedness that expressly provides that such senior indebtedness shall be
"designated senior indebtedness" for purposes of the indenture, subject to the
following limitations:

    - the instrument or agreement may place limitations and conditions on the
      right of senior indebtedness to exercise the rights of designated senior
      indebtedness; and

    - while the credit agreement shall be outstanding, designated senior
      indebtedness shall not include any senior indebtedness other than senior
      indebtedness incurred in connection with the credit agreement and senior
      indebtedness incurred in connection with the indebtedness described in
      clauses (3) and (4) of the definition of indebtedness.

    "INDEBTEDNESS" means:

    (1) all indebtedness, obligations and other liabilities for borrowed money,
       including overdrafts, foreign exchange contracts, currency exchange
       agreements, interest rate protection agreements, and any loans or
       advances from banks, or evidenced by bonds, debentures, notes or similar
       instruments, other than any account payable or other accrued current
       liability or obligation incurred in the ordinary course of business in
       connection with the obtaining of materials or services;

    (2) obligations with respect to letters of credit, bank guarantees or
       bankers' acceptances;

    (3) obligations in respect of leases required in conformity with generally
       accepted accounting principles to be accounted for as capitalized lease
       obligations on our balance sheet;

    (4) all obligations and other liabilities under any lease or related
       document in connection with the lease of real property which provides
       that we are contractually obligated to purchase or cause a third party to
       purchase the leased property and thereby guarantee a minimum residual
       value of

                                       21
<PAGE>
       the leased property to the lessor and our obligations under the lease or
       related document to purchase or to cause a third party to purchase the
       leased property;

    (5) all obligations with respect to an interest rate or other swap, cap or
       collar agreement or foreign currency hedge, exchange or purchase
       agreement;

    (6) all direct or indirect guaranties, our obligations or liabilities to
       purchase, acquire or otherwise assure a creditor against loss in respect
       of, indebtedness, obligations or liabilities of others of the type
       described in (1) through (5) above;

    (7) any obligations described in (1) through (5) above secured by any
       mortgage, pledge, lien or other encumbrance existing on property which is
       owned or held by us; and

    (8) any amendments or modifications to (1) through (7) above.

    "SENIOR INDEBTEDNESS" means the principal, premium, if any, interest,
including any interest accruing after bankruptcy; and rent or termination
payment on or other amounts due on our current or future indebtedness, whether
created, incurred, assumed, guaranteed or in effect guaranteed by us, including
any deferrals, renewals, extensions, refundings, amendments, modifications or
supplements to the above. However, senior indebtedness does not include:

    - indebtedness that expressly provides that it shall not be senior in right
      of payment to the notes or expressly provides that it is on the same basis
      or junior to the notes;

    - our indebtedness to any of our majority-owned subsidiaries; and

    - the notes.

EVENTS OF DEFAULT; NOTICE AND WAIVER

    The following will be events of default under the indenture:

    - we fail to pay principal or premium, if any, upon redemption or otherwise
      on the notes, whether or not the payment is prohibited by subordination
      provisions;

    - we fail to pay any interest and liquidated damages, if any, on the notes,
      whether or not the payment is prohibited by subordination provisions of
      the indenture;

    - we fail to perform or observe any of the covenants in the indenture for
      60 days after notice; or

    - certain events involving bankruptcy, insolvency or reorganization of
      Lattice.

    The trustee may withhold notice to the holders of the notes of any default,
except defaults in payment of principal, premium, interest or liquidated
damages, if any, on the notes. However, the trustee must consider it to be in
the interest of the holders of the notes to withhold this notice.

    If an event of default occurs and continues, the trustee or the holders of
at least 25% in principal amount of the outstanding notes may declare the
principal, premium, and accrued interest and liquidated damages, if any, on the
outstanding notes to be immediately due and payable. In case of certain events
of bankruptcy or insolvency involving Lattice, the principal, premium and
accrued interest and liquidated damages, if any, on the notes will automatically
become due and payable. However, if we cure all defaults, except the nonpayment
of principal, premium, interest or liquidated damages, if any, that became due
as a result of the acceleration, and meet certain other conditions, with certain
exceptions, this declaration may be cancelled and the holder of a majority of
the principal amount of outstanding notes may waive these past defaults.
Payments of principal, premium, or interest on the notes that are not made when
due will accrue interest at the annual rate of 4 3/4% from the required payment
date.

    The holders of a majority of outstanding notes will have the right to direct
the time, method and place of any proceedings for any remedy available to the
trustee, subject to limitations specified in the indenture.

                                       22
<PAGE>
    No holder of the notes may pursue any remedy under the indenture, except in
the case of a default in the payment of principal, premium or interest on the
notes, unless:

    - the holder has given the trustee written notice of an event of default;

    - the holders of at least 25% in principal amount of outstanding notes make
      a written request, and offer reasonable indemnity, to the trustee to
      pursue the remedy;

    - the trustee does not receive an inconsistent direction from the holders of
      a majority in principal amount of the notes; and

    - the trustee fails to comply with the request within 60 days after receipt.

MODIFICATION OF THE INDENTURE

    The consent of the holders of a majority in principal amount of the
outstanding notes is required to modify or amend the indenture. However, a
modification or amendment requires the consent of the holder of each outstanding
note if it would:

    - extend the fixed maturity of any note;

    - reduce the rate or extend the time for payment of interest of any note;

    - reduce the principal amount or premium of any note;

    - reduce any amount payable upon redemption of any note;

    - adversely change our obligation to redeem any note upon a fundamental
      change;

    - impair the right of a holder to institute suit for payment on any note;

    - change the currency in which any note is payable;

    - impair the right of a holder to convert any note;

    - adversely modify the subordination provisions of the indenture; or

    - reduce the percentage of notes required for consent to any modification of
      the indenture.

    We are permitted to modify certain provisions of the indenture without the
consent of the holders of the notes.

INFORMATION CONCERNING THE TRUSTEE

    We have appointed State Street Bank and Trust Company of California, N.A.,
the trustee under the indenture, as paying agent, conversion agent, note
registrar and custodian for the notes. The trustee or its affiliates may provide
banking and other services to us in the ordinary course of their business.

    The indenture contains certain limitations on the rights of the trustee, as
long as it or any of its affiliates remains our creditor, to obtain payment of
claims in certain cases or to realize on certain property received on any claim
as security or otherwise. The trustee and its affiliates will be permitted to
engage in other transactions with us. However, if the trustee or any affiliate
continues to have any conflicting interest and a default occurs with respect to
the notes, the trustee must eliminate such conflict or resign.

                                       23
<PAGE>
                          DESCRIPTION OF CAPITAL STOCK

    Lattice's authorized capital stock consists of 100,000,000 shares of common
stock, $.01 par value and 10,000,000 shares of preferred stock, $.01 par value.
As of October 2, 1999, there were 47,926,112 shares of common stock and no
shares of preferred stock outstanding.

COMMON STOCK

    The holders of common stock are entitled to one vote per share on all
matters to be voted upon by the stockholders. Subject to preferences applicable
to any outstanding preferred stock, the holders of common stock are entitled to
receive ratably such dividends as may be declared from time to time by our board
of directors out of funds legally available for distribution and in the event of
liquidation, dissolution, or winding up of Lattice, the holders of common stock
are entitled to share in all assets remaining after payment of liabilities. The
common stock has no preemptive or conversion rights and is not subject to
further calls or assessments by Lattice. There are no redemption or sinking fund
provisions applicable to the common stock. The common stock currently
outstanding is validly issued, fully paid and nonassessable.

CERTAIN CHARTER PROVISIONS

    Lattice's Restated Certificate of Incorporation, as amended, and Bylaws, as
amended, contain certain procedural provisions that could have the effect of
delaying, deferring or preventing a change in control of Lattice. These include:

    - a provision classifying the board of directors into three classes; and

    - a provision requiring that the affirmative vote of two-thirds of the
      outstanding voting shares of capital stock of Lattice is required to
      approve certain business combinations.

PREFERRED STOCK

    Our board of directors has the authority to issue the preferred stock in one
or more series and to fix the rights, preferences and privileges, including
dividend rights, conversion rights, liquidation rights, voting rights, and the
number of shares constituting any series or the designation of such series of
preferred stock, without any further vote or action by the stockholders. As of
October 2, 1999, there were no outstanding shares of preferred stock or options
to purchase preferred stock other than the Rights Agreement described below.
Although it has no present intention to do so, our board of directors may,
without stockholder approval, issue preferred stock with voting and conversion
rights which could adversely affect the voting power of the holders of common
stock. The issuance of preferred stock may have the effect of delaying,
deferring or preventing a change of control of Lattice.

RIGHTS AGREEMENT

    Effective September 1991, our board of directors approved a Preferred Shares
Right Agreement and declared a dividend distribution payable November 14, 1991
of one Preferred Share Purchase Right (called "rights") for each share of its
common stock outstanding on November 14, 1991 and each share of its common stock
issued thereafter (subject to certain limitations).

    Currently, the rights trade with the shares of common stock. When the rights
become exercisable, each Right will entitle the holder to buy one-thousandth of
a share of Series A Participating Preferred Stock, $.01 par value, at an
exercise price of $60 per one one-thousandth of a share. The rights will become
exercisable and will trade separately from the common stock (unless postponed by
action of the disinterested directors of Lattice) on the earlier of (i) ten
(10) days following a public announcement that a person or group has acquired,
or obtained the right to acquire, beneficial ownership of 20% or more of our
outstanding common stock or (ii) ten (10) days following the commencement or
announcement of a tender

                                       24
<PAGE>
offer or exchange offer which, if consummated, would result in the beneficial
ownership by a person or group of 20% or more of our outstanding common stock.

    In general, if any person or group acquires 20% or more of our common stock
without approval of our board of directors, each right not held by the acquiring
person will entitle its holder to purchase $120 worth of our common stock for an
effective purchase price of $60. If, after any person or group acquires 20% or
more of our common stock without the approval of our board of directors, we are
acquired in a merger or other business combination transaction, each right not
held by the acquiring person would entitle its holder to purchase $120 worth of
the common stock of the acquiring company for $60. Under certain conditions, we
may elect to redeem the rights for $.01 per right or cause the exchange of each
right not held by the acquiring person for one share of our common stock.
Additionally, the exercise price, number of rights, and the number of shares of
Series A Participating Preferred or common stock that may be acquired for the
exercise price are subject to adjustment from time to time to prevent dilution.
The rights expire on September 11, 2001, unless previously exchanged or redeemed
as described above, or terminated in connection with the acquisition of Lattice
by consolidation or merger approved by the board of directors and satisfying
certain conditions.

    The rights are designed to protect and maximize the value of the outstanding
equity interests in Lattice in the event of an unsolicited attempt by an
acquiror to take over Lattice in a manner or on terms not approved by the board
of directors. Takeover attempts frequently include coercive tactics to deprive a
corporation's board of directors and its stockholders of any real opportunity to
determine the destiny of the corporation. The rights have been declared by the
board of directors in order to deter such tactics, including a gradual
accumulation of shares in the open market of a 20% or greater position to be
followed by a merger or a partial or two-tier tender offer that does not treat
all stockholders equally.

    The rights are not intended to prevent a takeover of Lattice and will not do
so. Nevertheless, the rights may have the effect of rendering more difficult or
discouraging an acquisition of Lattice deemed undesirable by the board of
directors. The rights may cause substantial dilution to a person or group that
attempts to acquire Lattice on terms or in a manner not approved by our board of
directors, except pursuant to an offer conditioned upon the negation, purchase
or redemption of the rights.

    The description above is qualified in its entirety by reference to the
Preferred Shares Right Agreement dated as of September 11, 1991.

DELAWARE TAKEOVER STATUTE

    We are subject to the provisions of Section 203 of the Delaware General
Corporation Law, which prohibits a publicly-held Delaware corporation from
engaging in any "business combination" with an "interested stockholder" for
three years following the date that such stockholder became an interested
stockholder, unless:

    - prior to such date, the board of directors of the corporation approved
      either the business combination or the transaction that resulted in the
      stockholder becoming an interested stockholder;

    - upon consummation of the transaction that resulted in the stockholder
      becoming an interested stockholder, the interested stockholder owned at
      least 85% of the voting stock of the corporation outstanding at the time
      the transaction commenced, excluding, for purposes of determining the
      number of shares outstanding, those shares owned (a) by persons who are
      directors and also officers and (b) by employee stock plans in which
      employee participants do not have the right to determine confidentially
      whether shares held subject to the plan will be tendered in a tender or
      exchange offer; or

    - on or subsequent to such date, the business combination is approved by the
      board of directors and authorized at an annual or special meeting of
      stockholders, and not by written consent, by the

                                       25
<PAGE>
      affirmative vote of at least 66 2/3% of the outstanding voting stock not
      owned by the interested stockholder.

    Generally, a "business combination" includes a merger, asset or stock sale,
or other transaction resulting in a financial benefit to the stockholders. An
"interested stockholder" is a person who, together with affiliates and
associates, owns (or within three years prior did own) 15% or more of the
corporation's voting stock.

TRANSFER AGENT AND REGISTRAR

    The Transfer Agent and Registrar for the common stock is ChaseMellon
Shareholder Services, L.L.C. Its address is 50 California Street, 10th Floor,
San Francisco, California 94111 and its telephone number is (415) 954-9533.

                                       26
<PAGE>
                   CERTAIN FEDERAL INCOME TAX CONSIDERATIONS

    The following is a summary of certain U.S. federal income tax considerations
relating to the purchase, ownership and disposition of the notes and common
stock into which notes may be converted, but does not purport to be a complete
analysis of all the potential tax considerations relating thereto. This summary
is based on laws, regulations, rulings and decisions now in effect, all of which
are subject to change or differing interpretation possibly with retroactive
effect. Except as specifically discussed below with regard to Non-U.S. Holders,
this summary applies only to beneficial owners that will hold notes and common
stock into which notes may be converted as "capital assets," within the meaning
of Section 1221 of the Internal Revenue Code of 1986, as amended (called the
"Code"), and who, for U.S. federal income tax purposes, are:

    - individual citizens or residents of the U.S.,

    - corporations, partnerships or other entities created or organized in or
      under the laws of the U.S. or of any political subdivision thereof
      (unless, in the case of a partnership, Treasury Regulations otherwise
      provide),

    - estates, the incomes of which are subject to U.S. federal income taxation
      regardless of the source of such income, or

    - trusts subject to the primary supervision of a U.S. court and the control
      of one or more U.S. persons (called "U.S. Holders").

Persons other than U.S. holders (called "Non-U.S. Holders") are subject to
special U.S. federal income tax considerations, some of which are discussed
below. This discussion does not address tax considerations applicable to an
investor's particular circumstances or to investors that may be subject to
special tax rules, such as banks, holders subject to the alternative minimum
tax, tax-exempt organizations, insurance companies, foreign persons or entities,
except to the extent specifically set forth below, dealers in securities or
currencies, persons that will hold notes as a position in a hedging transaction,
"straddle" or "conversion transaction" for tax purposes or persons deemed to
sell notes or common stock under the constructive sale provisions of the Code.
This summary discusses the tax considerations applicable to initial purchasers
of the notes who purchase the notes at their "issue price" as defined in
Section 1273 of the Code and does not discuss the tax considerations applicable
to subsequent purchasers of the notes. Lattice has not sought any ruling from
the Internal Revenue Service (the "IRS") or an opinion of counsel with respect
to the statements made and the conclusions reached in the following summary, and
there can be no assurance that the IRS will agree with such statements and
conclusions. In addition, the IRS is not precluded from successfully adopting a
contrary position. This summary does not consider the effect of the federal
estate or gift tax laws or the tax laws, except as set forth below with respect
to Non-U.S. Holders, of any applicable foreign, state, local or other
jurisdiction.

    INVESTORS CONSIDERING THE PURCHASE OF NOTES SHOULD CONSULT THEIR OWN TAX
ADVISORS WITH RESPECT TO THE APPLICATION OF THE UNITED STATES FEDERAL INCOME TAX
LAWS TO THEIR PARTICULAR SITUATIONS AS WELL AS ANY TAX CONSEQUENCES ARISING
UNDER THE FEDERAL ESTATE OR GIFT TAX RULES OR UNDER THE LAWS OF ANY STATE, LOCAL
OR FOREIGN TAXING JURISDICTION OR UNDER ANY APPLICABLE TAX TREATY.

U.S. HOLDERS

    TAXATION OF INTEREST

    Interest paid on the notes will be included in the income of a U.S. Holder
as ordinary income at the time it is treated as received or accrued, in
accordance with such holder's regular method of accounting for U.S. federal
income tax purposes. Under Treasury Regulations, the possibility of an
additional payment under a note may be disregarded for purposes of determining
the amount of interest or original issue discount income to be recognized by a
holder in respect of such note (or the timing of such recognition) if

                                       27
<PAGE>
the likelihood of the payment, as of the date the notes are issued, is remote.
Failure of Lattice to cause this shelf registration statement to be declared
effective may result in the payment of predetermined liquidated damages under
Lattice's registration rights agreement. In addition, a holder may require
Lattice to redeem any and all of his notes in the event of a fundamental change.
Lattice believes that the likelihood of a liquidated damages payment with
respect to the notes is remote and does not intend to treat such possibility as
affecting the yield to maturity of any note. Similarly, Lattice intends to take
the position that a "fundamental change" is remote under the Treasury
Regulations, and likewise does not intend to treat the possibility of a
"fundamental change" as affecting the yield to maturity of any note. In the
event either contingency occurs, it would affect the amount and timing of the
income that must be recognized by a U.S. Holder of notes. There can be no
assurance that the IRS will agree with such positions.

    SALE, EXCHANGE OR REDEMPTION OF THE NOTES

    Upon the sale, exchange, other than a conversion, or redemption of a note, a
U.S. Holder generally will recognize capital gain or loss equal to the
difference between:

    - the amount of cash proceeds and the fair market value of any property
      received on the sale, exchange or redemption, except to the extent such
      amount is attributable to accrued interest income not previously included
      in income, which will be taxable as ordinary income, or is attributable to
      accrued interest that was previously included in income, which amount may
      be received without generating further income, and

    - such holder's adjusted tax basis in the note.

A U.S. Holder's adjusted tax basis in a note generally will equal the cost of
the note to such holder. Such capital gain or loss will be long-term capital
gain or loss if the U.S. Holder's holding period in the note is more than one
year at the time of sale, exchange or redemption. Long-term capital gains
recognized by certain noncorporate U.S. Holders, including individuals, will
generally be subject to a maximum rate of tax of 20%. The deductibility of
capital losses is subject to limitations.

    CONVERSION OF THE NOTES

    A U.S. Holder generally will not recognize any income, gain or loss upon
conversion of a note into common stock except with respect to cash received in
lieu of a fractional share of common stock. A U.S. Holder's tax basis in the
common stock received on conversion of a note will be the same as such holder's
adjusted tax basis in the note at the time of conversion, reduced by any basis
allocable to a fractional share interest, and the holding period for the common
stock received on conversion will generally include the holding period of the
note converted. However, a U.S. Holder's tax basis in shares of common stock
considered attributable to accrued interest generally will equal the amount of
such accrued interest included in income, and the holding period for such shares
shall begin on the date of conversion.

    Cash received in lieu of a fractional share of common stock upon conversion
will be treated as a payment in exchange for the fractional share of common
stock. Accordingly, the receipt of cash in lieu of a fractional share of common
stock generally will result in capital gain or loss, measured by the difference
between the cash received for the fractional share and the holder's adjusted tax
basis in the fractional share.

    DIVIDENDS

    Distributions, if any, made on the common stock after a conversion generally
will be included in the income of a U.S. Holder as ordinary dividend income to
the extent of Lattice's current or accumulated earnings and profits.
Distributions in excess of Lattice's current and accumulated earnings and
profits will be treated as a return of capital to the extent of the U.S.
Holder's basis in the common stock and thereafter as capital gain.

                                       28
<PAGE>
    Holders of convertible debt instruments such as the notes may, in certain
circumstances, be deemed to have received distributions of stock if the
conversion price of such instruments is adjusted. Adjustments to the conversion
price made pursuant to a bona fide reasonable adjustment formula which has the
effect of preventing the dilution of the interest of the holders of the debt
instruments, however, will generally not be considered to result in a
constructive distribution of stock. Certain of the possible adjustments provided
in the notes will not qualify as being pursuant to a bona fide reasonable
adjustment formula. If such adjustments are made, the U.S. Holders of notes will
be deemed to have received constructive distributions taxable as dividends to
the extent of Lattice's current and accumulated earnings and profits even though
they have not received any cash or property as a result of such adjustments. In
certain circumstances, the failure to provide for such an adjustment may result
in taxable dividend income to the U.S. Holders of common stock.

    SALE OF COMMON STOCK

    Upon the sale or exchange of common stock a U.S. Holder generally will
recognize capital gain or loss equal to the difference between:

    - the amount of cash and the fair market value of any property received upon
      the sale or exchange, and

    - such U.S. Holder's adjusted tax basis in the common stock.

Such capital gain or loss will be long-term capital gain or loss if the U.S.
Holder's holding period in common stock is more than one year at the time of the
sale or exchange. Long-term capital gains recognized by certain non-corporate
U.S. Holders, including individuals, will generally be subject to a maximum rate
of tax of 20%. A U.S. Holder's basis and holding period in common stock received
upon conversion of a note are determined as discussed above under "Conversion of
Notes." The deductibility of capital losses is subject to limitations.

SPECIAL TAX RULES APPLICABLE TO NON-U.S. HOLDERS

    In general, subject to the discussion below concerning backup withholding:

    (1) Payments of principal or interest on the notes by Lattice or any paying
       agent to a beneficial owner of a note that is a Non-U.S. Holder will not
       be subject to U.S. withholding tax, provided that, in the case of
       interest:

       - such Non-U.S. Holder does not own, actually or constructively, 10% or
         more of the total combined voting power of all classes of stock of
         Lattice entitled to vote within the meaning of Section 871(h)(3) of the
         Code,

       - such Non-U.S. Holder is not a "controlled foreign corporation" with
         respect to which Lattice is a "related person" within the meaning of
         the Code,

       - such Non-U.S. Holder is not a bank receiving interest described in
         Section 881(c)(3)(A) of the Code, and

       - the certification requirements under Section 871(h) or Section 881(c)
         of the Code and Treasury Regulations thereunder (discussed below) are
         satisfied,

    (2) A Non-U.S. Holder of a note or common stock will not be subject to U.S.
       federal income tax on gains realized on the sale, exchange or other
       disposition of such note or common stock unless:

       - such Non-U.S. Holder is an individual who is present in the U.S. for
         183 days or more in the taxable year of sale, exchange or other
         disposition, and certain conditions are met,

                                       29
<PAGE>
       - such gain is effectively connected with the conduct by the Non-U.S.
         Holder of a trade or business in the U.S. and, if certain U.S. income
         tax treaties apply, is attributable to a U.S. permanent establishment
         maintained by the Non-U.S. Holder,

       - the Non-U.S. Holder is subject to Code provisions applicable to certain
         U.S. expatriates, or

       - in the case of common stock held by a person who holds more than 5% of
         such stock, Lattice is or has been, at any time within the shorter of
         the five-year period preceding such sale or other disposition or the
         period such Non-U.S. Holder held the common stock, a U.S. real property
         holding corporation (called a "USRPHC") for U.S. federal income tax
         purposes, and Lattice does not believe that it is currently a USRPHC or
         that it will become one in the future,

    (3) Interest on notes not excluded from U.S. withholding tax as described in
       (1) above and dividends on common stock after conversion generally will
       be a subject to U.S. withholding tax at a 30% rate, except where an
       applicable tax treaty provides for the reduction or elimination of such
       withholding tax.

    To satisfy the certification requirements referred to in the fourth bullet
point of (1) above, Sections 871(h) and 881(c) of the Code and currently
effective Treasury Regulations thereunder require that either:

    - the beneficial owner of a note must certify, under penalties of perjury,
      to Lattice or its paying agent, as the case may be, that such owner is a
      Non-U.S. Holder and must-provide such owner's name and address, and U.S.
      taxpayer identification number (called "TIN"), if any, or

    - a securities clearing organization, bank or other financial institution
      that holds customer securities in the ordinary course of its trade or
      business (called a "financial institution") and holds the note on behalf
      of the beneficial owner thereof must certify, under penalties of perjury,
      to Lattice or its paying agent, as the case may be, that such certificate
      has been received from the beneficial owner and must furnish the payor
      with a copy thereof.

Such requirement will be fulfilled if the beneficial owner of a note certifies
on IRS Form W-8 or successor form, under penalties of perjury, that it is a
Non-U.S. Holder and provides its name and address or any financial institution
holding the note on behalf of the beneficial owner files a statement with the
withholding agent to the effect that it has received such a statement from the
beneficial owner, and furnishes the withholding agent with a copy thereof.

    Treasury Regulations effective for payments made after December 31, 2000,
will provide alternative methods for satisfying the certification requirements
described above and below, subject to certain grandfathering provisions. These
new regulations also require, in the case of notes held by a foreign
partnership, that:

    - the certification be provided by the partners rather than by the foreign
      partnership, and

    - the partnership provide certain information, including a TIN. A
      look-through rule will apply in the case of tiered partnerships.

    If a Non-U.S. Holder of a note or common stock is engaged in a trade or
business in the U.S. and if interest on the note, dividends on the common stock,
or gain realized on the sale, exchange or other disposition of the note or
common stock is effectively connected with the conduct of such trade or business
(and, if certain tax treaties apply, is attributable to a U.S. permanent
establishment maintained by the Non-U.S. Holder in the U.S.), the Non-U.S.
Holder, although exempt from U.S. withholding tax (provided that the
certification requirements discussed in the next sentence are met), will
generally be subject to U.S. federal income tax on such interest, dividends or
gain on a net income basis in the same manner as if it were a U.S. Holder. In
lieu of the certificate described above, such a Non-U.S. Holder will be
required, under currently effective Treasury Regulations, to provide Lattice
with a properly executed IRS Form 4224 or successor form in order to claim an
exemption from withholding tax. In addition, if such Non-U.S.

                                       30
<PAGE>
Holder is a foreign corporation, it may be subject to a branch profits tax equal
to 30%, or such lower rate provided by an applicable treaty, of its effectively
connected earnings and profits for the taxable year, subject to certain
adjustments.

    U.S. FEDERAL ESTATE TAX

    A note held by an individual who at the time of death is not a citizen or
resident of the U.S., as specially defined for U.S. federal estate tax purposes,
will not be subject to U.S. federal estate tax if the individual did not
actually or constructively own 10% or more of the total combined voting power of
all classes of stock of Lattice and, at the time of the individual's death,
payments with respect to such note would not have been effectively connected
with the conduct by such individual of a trade or business in the U.S. common
stock held by an individual who at the time of death is not a citizen or
resident of the U.S., as specially defined for U.S. federal estate tax purposes,
will be included in such individual's estate for U.S. federal estate tax
purposes, unless an applicable estate tax treaty otherwise applies.

    Non-U.S. Holders should consult with their tax advisors regarding U.S. and
foreign tax consequences with respect to the notes and common stock.

BACKUP WITHHOLDING AND INFORMATION REPORTING

    Backup withholding of U.S. federal income tax at a rate of 31% may apply to
payments pursuant to the terms of a note or common stock to a U.S. Holder that
is not an "exempt recipient" and that fails to provide certain identifying
information, such as the holder's TIN, in the manner required. Generally,
individuals are not exempt recipients, whereas corporations and certain other
entities are exempt recipients. Payments made in respect of a note or common
stock must be reported to the Service, unless the U.S. Holder is an exempt
recipient or otherwise establishes an exemption.

    In the case of payments of interest on a note to a Non-U.S. Holder, Treasury
Regulations provide that backup withholding and information reporting will not
apply to payments with respect to which either requisite certification has been
received or an exemption has otherwise been established, provided that neither
Lattice nor a paying agent has actual knowledge that the holder is a U.S. Holder
or that the conditions of any other exemption are not in fact satisfied.

    Dividends on the common stock paid to Non-U.S. Holders that are subject to
U.S. withholding tax, as described above, generally will be exempt from U.S.
backup withholding tax but will be subject to certain information reporting.

    Payments of the proceeds of the sale of a note or common stock to or through
a foreign office of a U.S. broker or a foreign office of a broker that is a U.S.
related person (either a "controlled foreign corporation" (within the meaning of
the Code) or a foreign person, 50% or more of whose gross income from all
sources for the three-year period ending with the close of its taxable year
preceding the payment was effectively connected with the conduct of a trade or
business within the U.S.) are currently subject to certain information reporting
requirements, unless the payee is an exempt recipient or such broker has
evidence in its records that the payee is a Non-U.S. Holder and no actual
knowledge that such evidence is false and certain other conditions are met.
Temporary Treasury Regulations indicate that such payments are not currently
subject to backup withholding.

    Under current Treasury Regulations, payments of the proceeds of a sale of a
note or common stock to or through the U.S. office of a broker will be subject
to information reporting and backup withholding unless the payee certifies under
penalties of perjury as to his or her status as a Non-U.S. Holder and satisfies
certain other qualifications (and no agent of the broker who is responsible for
receiving or reviewing such statement has actual knowledge that it is incorrect)
and provides his or her name and address or the payee otherwise establishes an
exemption.

                                       31
<PAGE>
    Any amounts withheld under the backup withholding rules from a payment to a
holder of a note or common stock will be allowed as a refund or credit against
such holder's U.S. federal income tax provided that the required information is
furnished to the IRS in a timely manner.

    As noted above, new regulations will generally be applicable to payments
made after December 31, 2000. In general, these new regulations do not
significantly alter the substantive withholding and information reporting
requirements but unify current certification procedures and forms and clarify
reliance standards. Under these new regulations, special rules apply which
permit the shifting of primary responsibility for withholding to certain
financial intermediaries acting on behalf of beneficial owners. A holder of a
note or common stock should consult with its tax advisor regarding the
application of the backup withholding rules to its particular situation, the
availability of an exemption therefrom, the procedure for obtaining such an
exemption, if available, and the impact of these new regulations on payments
made with respect to notes or common stock after December 31, 2000.

    THE PRECEDING DISCUSSION OF CERTAIN U.S. FEDERAL INCOME TAX CONSIDERATIONS
IS FOR GENERAL INFORMATION ONLY AND IS NOT TAX ADVICE. ACCORDINGLY, EACH
PROSPECTIVE INVESTOR SHOULD CONSULT ITS OWN TAX ADVISER AS TO THE PARTICULAR U.S
FEDERAL, STATE, AND LOCAL TAX CONSEQUENCES OF PURCHASING, HOLDING AND DISPOSING
OF THE NOTES AND COMMON STOCK OF LATTICE. TAX ADVISORS SHOULD ALSO BE CONSULTED
AS TO THE U.S. ESTATE AND GIFT TAX CONSEQUENCES AND THE FOREIGN TAX CONSEQUENCES
OF PURCHASING, HOLDING AND DISPOSING OF THE NOTES AND COMMON STOCK OF LATTICE,
AS WELL AS THE CONSEQUENCES OF ANY PROPOSED CHANGE IN APPLICABLE LAWS.

                                       32
<PAGE>
                            SELLING SECURITYHOLDERS

    We originally issued the notes in a private placement in October 1999.
Selling securityholders may offer and sell the notes and the underlying common
stock pursuant to this prospectus.

    The following table contains information as of December 21, 1999, with
respect to the selling securityholders and the principal amount of notes and the
underlying common stock beneficially owned by each selling security holders that
may be offered using this prospectus.

<TABLE>
<CAPTION>
                                                 PRINCIPAL
                                                 AMOUNT AT
                                                MATURITY OF                     NUMBER OF
                                                   NOTES                        SHARES OF
                                                BENEFICIALLY   PERCENTAGE OF   COMMON STOCK    PERCENTAGE OF
                                                 OWNED THAT        NOTES       THAT MAY BE     COMMON STOCK
NAME                                            MAY BE SOLD     OUTSTANDING      SOLD (1)     OUTSTANDING (2)
- ----                                            ------------   -------------   ------------   ---------------
<S>                                             <C>            <C>             <C>            <C>
1976 Distribution Trust FBO
  A.R. Lauder/Zinterhofer.....................  $     9,000           *               217              *
1976 Distribution Trust FBO
  Jane A. Lauder..............................        9,000           *               217              *
Allstate Insurance Company....................    1,000,000           *            24,131              *
Aloha Airlines Non-Pilots Pension Trust.......      160,000           *             3,861              *
Aloha Airlines Pilots Retirement Trust........       90,000           *             2,171              *
Alta Partners Holdings, LDC...................    1,000,000           *            24,131              *
Argent Classic Convertible Arbitrage Fund
  (Bermuda) L.P...............................    2,500,000           *            60,328              *
Argent Classic Convertible Arbitrage Fund
  L.P.........................................    1,000,000           *            24,131              *
Argent Convertible Arbitrage Fund Ltd.........    1,400,000           *            33,783              *
Arkansas Teachers Retirement System...........    1,077,000           *            25,989              *
Arpeggio Fund, LP.............................      600,000           *            14,478              *
Associated Electric & Gas Insurance Services
  Limited.....................................      450,000           *            10,859              *
Bancroft Convertible Fund, Inc................      250,000           *             6,032              *
Baptist Health of South Florida...............       72,000           *             1,737              *
BBT Fund, L.P.................................    5,000,000         1.9%          120,565              *
Boilermaker-Blacksmith Pension Trust..........      300,000           *             7,239              *
Boston Museum of Fine Arts....................       55,000           *             1,327              *
BVI Social Security Board.....................       17,000           *               410              *
C&H Sugar Company, Inc........................      255,000           *             6,153              *
CALAMOS-Registered Trademark- Convertible
  Fund--CALAMOS Investment Trust..............      565,000           *            13,634              *
CALAMOS-Registered Trademark- Convertible
  Portfolio--CALAMOS Advisors Trust...........       15,000           *               361              *
CALAMOS-Registered Trademark- Growth and
  Income Fund--CALAMOS-Registered Trademark-
  Investment Trust............................      200,000           *             4,826              *
Castle Convertible Fund.......................      500,000           *            12,065              *
Champion International Corporation Master
  Retirement Trust............................      400,000           *             9,652              *
Christian Science Trustees for Gifts and
  Endowments..................................      460,000           *            11,100              *
Chrysler Corporation Master Retirement
  Trust.......................................    4,885,000         1.9%          117,881              *
CIBC World Markets............................    1,450,000           *            34,990              *
CIBC World Markets International Equity
  Arbitrage Corp..............................    2,500,000           *            60,328              *
</TABLE>

                                       33
<PAGE>

<TABLE>
<CAPTION>
                                                 PRINCIPAL
                                                 AMOUNT AT
                                                MATURITY OF                     NUMBER OF
                                                   NOTES                        SHARES OF
                                                BENEFICIALLY   PERCENTAGE OF   COMMON STOCK    PERCENTAGE OF
                                                 OWNED THAT        NOTES       THAT MAY BE     COMMON STOCK
NAME                                            MAY BE SOLD     OUTSTANDING      SOLD (1)     OUTSTANDING (2)
- ----                                            ------------   -------------   ------------   ---------------
<S>                                             <C>            <C>             <C>            <C>
City of Knoxville Pension System..............      150,000           *             3,619              *
Conseco Direct Life Insurance Company.........      220,000           *             5,308              *
Conseco Fund Group--Convertible Securities
  Fund........................................    2,000,000           *            48,262              *
C.U.N.Y.......................................       43,000           *             1,037              *
David Lipscomb University General Endowment...      110,000           *             2,654              *
Delta Airlines Master Trust...................    2,100,000           *            50,675              *
Ellsworth Convertible Growth and Income Fund,
  Inc.........................................      250,000           *             6,032              *
Employee Benefit Convertible Securities
  Fund........................................      300,000           *             7,239              *
EQAT Alliance Balanced Account................    1,830,000           *            44,160              *
EQAT Alliance Growth Investors................    1,535,000           *            37,041              *
EQAT Alliance Growth & Income Account.........    3,790,000         1.5%           91,457              *
Equitable Advisors Trust Separate Account--
  Balanced....................................      125,000           *             3,016              *
Equitable Advisors Trust Separate Account--
  Convertibles................................    1,995,000           *            48,141              *
GLG Global Convertible Fund...................    2,330,000           *            56,225              *
GLG Global Convertible UCITS Fund.............      420,000           *            10,135              *
GLG Market Neutral Fund.......................    6,250,000         2.4%          150,820              *
Grable Foundation.............................       63,000           *             1,520              *
Granville Capital Corp........................    1,250,000           *            30,164              *
Gryphon Domestic III, LLC.....................    2,700,000         1.0%           65,154              *
Guardian Life Insurance Co....................    2,500,000           *            60,328              *
Hawaiian Airlines Employees Pension
  Plan--IAM...................................      140,000           *             3,378              *
Hawaiian Airlines Pension Plan for Salaried
  Employees...................................       35,000           *               844              *
Hawaiian Airlines Pilots Retirement Plan......      215,000           *             5,188              *
Highbridge International LLC..................    7,500,000         2.9%          180,984              *
Hull Overseas Ltd.............................      250,000           *             6,032              *
Investcorp SAM Fund Limited...................    5,000,000         1.9%          120,656              *
Julius Baer Securities........................      500,000           *            12,065              *
Kapiolani Medical Center......................      315,000           *             7,601              *
Kentfield Trading, Ltd........................    9,950,000         3.8%          240,106              *
Knoxville Utilities Board Retirement System...       90,000           *             2,171              *
Lipper Convertibles, L.P......................    4,750,000         1.8%          114,623              *
Mainstay Convertible Fund.....................    5,000,000         1.9%          120,656              *
Mark IV Industries, Inc. and Subsidiaries
  Master Trust................................      800,000           *            19,305              *
Maryland State Retirement System..............      924,000           *            22,297              *
Memphis Light, Gas & Water Retirement Fund....    1,375,000           *            32,918              *
Merrill Lynch Convertible Fund, Inc...........      800,000           *            19,305              *
Merrill Lynch ECS Convertible Securities
  Portfolio...................................      200,000           *             4,826              *
Merrill Lynch Insurance Corp..................      156,000           *             3,764              *
Morgan Stanley Dean Witter....................   25,000,000         9.6%          603,281            1.3%
</TABLE>

                                       34
<PAGE>

<TABLE>
<CAPTION>
                                                 PRINCIPAL
                                                 AMOUNT AT
                                                MATURITY OF                     NUMBER OF
                                                   NOTES                        SHARES OF
                                                BENEFICIALLY   PERCENTAGE OF   COMMON STOCK    PERCENTAGE OF
                                                 OWNED THAT        NOTES       THAT MAY BE     COMMON STOCK
NAME                                            MAY BE SOLD     OUTSTANDING      SOLD (1)     OUTSTANDING (2)
- ----                                            ------------   -------------   ------------   ---------------
<S>                                             <C>            <C>             <C>            <C>
Morgan Stanley Dean Witter Convertible
  Securities Trust............................    3,000,000         1.2%           72,393              *
Motion Picture Industry Health Plan--Active
  Member Fund.................................      575,000           *            13,875              *
Motion Picture Industry Health Plan--Retiree
  Member Fund.................................      285,000           *             6,877              *
Nations Capital Income Fund...................    3,800,000         1.5%           91,698              *
New Orleans Fire Pension......................       68,000           *             1,640              *
New York Life Insurance and Annuity
  Corporation.................................    1,500,000           *            36,196              *
New York Life Insurance Company...............   12,750,000         4.9%          307,673              *
Nicholas--Applegate Convertible Fund..........      202,000           *             4,874              *
Northern Income Equity Fund...................    1,000,000           *            24,131              *
Occidental Petroleum Corp.....................      114,000           *             2,750              *
OCM Convertible Limited Partnership...........      145,000           *             3,499              *
OCM Convertible Trust.........................    2,630,000         1.0%           63,465              *
Ohio BWC......................................      139,000           *             3,354              *
Oppenheimer Convertible Securities Fund.......    3,500,000         1.3%           84,459              *
Pacific Innovations Trust Capital Income
  Fund........................................      300,000           *             7,239              *
Pacific Life Insurance Company................    1,500,000           *            36,196              *
Palladin Securities...........................      660,000           *            15,926              *
Partner Reinsurance Company Ltd...............    1,005,000           *            24,251              *
PGEP III LLC..................................      220,000           *             5,308              *
Physicians Life...............................       98,000           *             2,364              *
Pilgrim Convertible Fund......................    1,197,000           *            28,885              *
PIMCO Convertible Bond Fund...................    1,600,000           *            38,610              *
PIMCO Total Return Fund.......................    1,500,000           *            36,196              *
Port Authority of Allegheny County Retirement
  and Disability Allowance Plan for the
  Employees Represented by Local 85 of the
  Amalgamated Transit Union...................      400,000           *             9,652              *
Queen's Health Plan...........................       55,000           *             1,327              *
Rhapsody Fund, LP.............................      700,000           *            16,891              *
San Diego City Retirement.....................      351,000           *             8,470              *
San Diego County Convertible..................    1,085,000           *            26,182              *
Shell Pension Trust...........................       90,000           *             2,171              *
SPT...........................................      400,000           *             9,652              *
State Employees' Retirement Fund of the State
  of Delaware.................................    2,585,000           *            62,379              *
State of Connecticut Combined Investment
  Funds.......................................    5,945,000         2.3%          143,460              *
State of Maryland Retirement Plan.............    4,200,000         1.6%          101,351              *
State of Oregon/SAIF Corporation..............    7,735,000         3.0%          186,655              *
Summer Hill Global Partners L.P...............      140,000           *             3,378              *
The Dow Chemical Company Employees' Retirement
  Plan........................................      900,000           *            21,718              *
The Frist Foundation..........................      240,000           *             5,791              *
</TABLE>

                                       35
<PAGE>

<TABLE>
<CAPTION>
                                                 PRINCIPAL
                                                 AMOUNT AT
                                                MATURITY OF                     NUMBER OF
                                                   NOTES                        SHARES OF
                                                BENEFICIALLY   PERCENTAGE OF   COMMON STOCK    PERCENTAGE OF
                                                 OWNED THAT        NOTES       THAT MAY BE     COMMON STOCK
NAME                                            MAY BE SOLD     OUTSTANDING      SOLD (1)     OUTSTANDING (2)
- ----                                            ------------   -------------   ------------   ---------------
<S>                                             <C>            <C>             <C>            <C>
The Northwestern Mutual Life Insurance
  Company.....................................    4,000,000         1.5%           96,525              *
The TCW Group, Inc............................    9,950,000         3.8%          240,106              *
United Food and Commercial Workers Local 1262
  and Employers Pension Fund..................      200,000           *             4,826              *
ValueLine Convertible Fund....................      500,000           *            12,065              *
Vanguard Convertible Securities Fund, Inc.....    3,345,000         1.3%           80,719              *
Van Waters & Rogers, Inc. Retirement Plan
  (f.k.a. Univar Corporation).................      180,000           *             4,343              *
VAR Partners, LP..............................      125,000           *             3,016              *
Wake Forest University........................      363,000           *             8,759              *
Warburg Dillon Read LLC.......................   11,950,000         4.6%          288,368              *
Any other holder of Notes or future
  transferee, pledgee, donee or successor of
  any holder(3)(4)............................   47,593,000        18.3%        1,148,479            2.4%
</TABLE>

- ------------------------

*   Less than 1%.

(1) Assumes conversion of all of the holder's notes at a conversion price of
    $41.440 per share of common stock. However, this conversion price will be
    subject to adjustment as described under "Description of Notes--Conversion
    of Notes." As a result, the amount of common stock issuable upon conversion
    of the notes may increase or decrease in the future.

(2) Calculated based on Rule 13d-3(d)(i) of the Exchange Act using 47,926,112
    shares of common stock outstanding as of October 2, 1999. In calculating
    this amount, we treated as outstanding the number of shares of common stock
    issuable upon conversion of all of that particular holder's notes. However,
    we did not assume the conversion of any other holder's notes.

(3) Information about other selling security holders will be set forth in
    prospectus supplements, if required.

(4) Assumes that any other holders of notes, or any future transferees,
    pledgees, donees or successors of or from any such other holders of notes,
    do not beneficially own any common stock other than the common stock
    issuable upon conversion of the notes at the initial conversion rate.

    We prepared this table based on the information supplied to us by the
selling securityholders named in the table.

    The selling securityholders listed in the above table may have sold or
transferred, in transactions exempt from the registration requirements of the
Securities Act, some or all of their notes since the date on which the
information in the above table is presented. Information about the selling
securityholders may change from over time. Any changed information will be set
forth in prospectus supplements.

    Because the selling securityholders may offer all or some of their notes or
the underlying common stock from time to time, we cannot estimate the amount of
the notes or underlying common stock that will be held by the selling
securityholders upon the termination of any particular offering. See "Plan of
Distribution."

                                       36
<PAGE>
                              PLAN OF DISTRIBUTION

    We will not receive any of the proceeds of the sale of the notes and the
underlying common stock offered by this prospectus. The notes and the underlying
common stock may be sold from time to time to purchasers:

    - directly by the selling securityholders;

    - through underwriters, broker-dealers or agents who may receive
      compensation in the form of discounts, concessions or commissions from the
      selling securityholders or the purchasers of the notes and the underlying
      common stock.

    The selling securityholders and any such broker-dealers or agents who
participate in the distribution of the notes and the underlying common stock may
be deemed to be "underwriters." As a result, any profits on the sale of the
notes and underlying common stock by selling securityholders and any discounts,
commissions or concessions received by any such broker-dealers or agents might
be deemed to be underwriting discounts and commissions under the Securities Act.
If the selling securityholders were to deemed underwriters, the selling
securityholders may be subject to certain statutory liabilities of, including,
but not limited to, Sections 11, 12 and 17 of the Securities Act and Rule 10b-5
under the Exchange Act.

    If the notes and underlying common stock are sold through underwriters or
broker-dealers, the selling securityholders will be responsible for underwriting
discounts or commissions or agent's commissions.

    The notes and underlying common stock may be sold in one or more
transactions at:

    - fixed prices;

    - prevailing market prices at the time of sale;

    - varying prices determined at the time of sale; or

    - negotiated prices.

    These sales may be effected in transactions:

    - on any national securities exchange or quotation service on which the
      notes and underlying common stock may be listed or quoted at the time of
      the sale, including the Nasdaq National Market in the case of the common
      stock;

    - in the over-the-counter market;

    - in transactions otherwise than on such exchanges or services or in the
      over-the-counter market; or

    - through the writing of options.

    These transactions may include block transactions or crosses. Crosses are
transactions in which the same broker acts as an agent on both sides of the
trade.

    In connection with sales of the notes and underlying common stock or
otherwise, the selling securityholders may enter into hedging transactions with
broker-dealers. These broker-dealers may in turn engage in short sales of the
notes and underlying common stock in the course of hedging their positions. The
selling securityholders may also sell the notes and underlying common stock
short and deliver notes and underlying common stock to close out short
positions, or loan or pledge notes and underlying common stock to broker-dealers
that in turn may sell the notes and underlying common stock.

    To our knowledge, there are currently no plans, arrangement or
understandings between any selling securityholders and any underwriter,
broker-dealer or agent regarding the sale of the notes and the underlying common
stock by the selling securityholders. Selling securityholders may not sell any
or all of the notes and the underlying common stock offered by them pursuant to
this prospectus. In addition, we

                                       37
<PAGE>
cannot assure you that any such selling securityholder will not transfer, devise
or gift the notes and the underlying common stock by other means not described
in this prospectus.

    Our common stock trades on the Nasdaq National Market under the symbol
"LSCC." We do not intend to apply for listing of the notes on any securities
exchange or for quotation through Nasdaq. Accordingly, no assurance can be given
as to the development of liquidity or any trading market for the notes. See
"Risk Factors--A public market may not develop for the notes."

    There can be no assurance that any selling securityholder will sell any or
all of the notes or underlying common stock pursuant to this prospectus. In
addition, any notes or underlying common stock covered by this prospectus that
qualify for sale pursuant to Rule 144 or Rule 144A of the Securities Act may be
sold under Rule 144 or Rule 144A rather than pursuant to this prospectus.

    The selling securityholders and any other person participating in such
distribution will be subject to the Exchange Act. The Exchange Act rules
include, without limitation, Regulation M, which may limit the timing of
purchases and sales of any of the notes and the underlying common stock by the
selling securityholders and any other such person. In addition, Regulation M of
the Exchange Act may restrict the ability of any person engaged in the
distribution of the notes and the underlying common stock to engage in
market-making activities with respect to the particular notes and the underlying
common stock being distributed for a period of up to five business days prior to
the commencement of such distribution. This may affect the marketability of the
notes and the underlying common stock and the ability of any person or entity to
engage in market-making activities with respect to the notes and the underlying
common stock.

    Pursuant to the registration rights agreement filed as an exhibit to this
registration statement, we and the selling securityholders will be indemnified
by the other against certain liabilities, including certain liabilities under
the Securities Act or will be entitled to contribution in connection with these
liabilities.

    We have agreed to pay substantially all of the expenses incidental to the
registration, offering and sale of the notes and underlying common stock to the
public other than commissions, fees and discounts of underwriters, brokers,
dealers and agents.

                                 LEGAL MATTERS

    The validity of the issuance of Lattice Semiconductor Corporation's
securities offered by this prospectus will be passed upon for Lattice
Semiconductor Corporation by Wilson Sonsini Goodrich & Rosati, Professional
Corporation, Palo Alto, California.

                                    EXPERTS

    The consolidated financial statements of Lattice Semiconductor Corporation
incorporated in this Prospectus by reference to the Annual Report on Form 10-K,
as amended, for the year ended April 3, 1999, have been so incorporated in
reliance on the report of PricewaterhouseCoopers LLP, independent accountants,
given on the authority of said firm as experts in auditing and accounting. The
consolidated financial statements of Vantis Corporation as of December 27, 1998
and December 28, 1997, and for the three years in the period ended December 27,
1998, appearing in Lattice Semiconductor Corporation's Current Report on
Form 8-K filed on June 25, 1999, amended on August 20, 1999 (Form 8-K/A), have
been audited by Ernst & Young LLP, independent auditors, as stated in their
report included therein and incorporated herein by reference and are included in
reliance upon such report given on the authority of such firm as experts in
accounting and auditing.

                                       38
<PAGE>
                                    PART II
                   INFORMATION NOT REQUIRED IN THE PROSPECTUS

ITEM 14.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION

    The aggregate estimated (other than the registration fee) expenses to be
paid by the Registrant in connection with this offering are as follows:

<TABLE>
<S>                                                           <C>
Securities and Exchange Commission registration fee.........  $ 72,280
Nasdaq Additional Share Listing Fee.........................    17,500
Accounting fees and expenses................................    10,000
Legal fees and expenses.....................................    25,000
Miscellaneous...............................................     5,000
                                                              --------
    Total...................................................  $129,780
                                                              ========
</TABLE>

ITEM 15.  INDEMNIFICATION OF DIRECTORS AND OFFICERS OF LATTICE

CERTIFICATE OF INCORPORATION

    Article 10 of our Certificate of Incorporation provides that, to the fullest
extent permitted by Delaware law, as the same now exists or may hereafter be
amended, a director shall not be personally liable to the corporation or its
stockholders for monetary damages for breach of fiduciary duty as a director.
Delaware law provides that directors of a corporation will not be personally
liable for monetary damages for breach of their fiduciary duties as directors,
except for liability:

    --  for any breach of their duty of loyalty to the corporation or its
       stockholders,

    --  for acts or omissions not in good faith or that involve intentional
       misconduct or a knowing violation of law,

    --  for unlawful payments of dividends or unlawful stock repurchases or
       redemptions as provided in Section 174 of the Delaware General
       Corporation Law, or

    --  for any transaction from which the director derived an improper personal
       benefit.

BYLAWS

INDEMNIFICATION ARRANGEMENTS

    Our bylaws provide that our directors, officers and agents shall be
indemnified against expenses including attorneys' fees, judgments, fines,
settlements actually and reasonably incurred in connection with any proceeding
arising out of their status as such, if such director, officer or agent acted in
good faith and in a manner he or she reasonably believed to be in or not opposed
to the best interests of Lattice Semiconductor Corporation, and, with the
respect to any criminal action or proceeding, had no reasonable cause to believe
such conduct was unlawful.

    We have entered into agreements to indemnify our directors and officers, in
addition to the indemnification provided for in our Certificate of Incorporation
and Bylaws. These agreements, among other things, indemnify our directors and
officers for certain expenses, including attorney's fees, judgments, fines and
settlement amounts incurred by any such person in any action or proceeding,
including any action by or in the right of Lattice, arising out of such person's
services as a director or officer of Lattice, any subsidiary of Lattice or any
other company or enterprise to which the person provides services at the request
of Lattice.

                                      II-1
<PAGE>
ITEM 16.  EXHIBITS

    The following exhibits are filed herewith or incorporated by reference
herein:

<TABLE>
<CAPTION>
           EXHIBIT
           NUMBER           EXHIBIT TITLE
    ---------------------   -------------
    <C>                     <S>
             3.1            Certificate of Incorporation, as amended.(1)

             3.2            Bylaws, as amended.(2)

             4.1            Indenture.

             4.2            Registration Rights Agreement.

             4.3            Form of Note (included in Exhibit 4.1).

             5.1*           Opinion of Wilson Sonsini Goodrich & Rosati, Professional
                              Corporation.

            12.1            Computation of Ratio of Earnings to Fixed Charges.

            23.1            Consent of PricewaterhouseCoopers LLP, Independent
                              Accountants.

            23.2            Consent of Ernst & Young LLP, Independent Auditors.

            23.3*           Consent of Wilson Sonsini Goodrich & Rosati, Professional
                              Corporation (included in Exhibit 5.1).

            24.1            Power of Attorney of certain directors and officers of
                              Lattice Semiconductor Corporation (see page II-4 of this
                              Form S-3).

            25.1            Form T-1 Statement of Eligibility of Trustee for Indenture
                              under the Trust Indenture Act of 1939.
</TABLE>

- ------------------------

*   To be filed by amendment.

(1) Incorporated by reference to exhibits filed with the Company's Annual Report
    on Form 10-K for the fiscal year ended March 31, 1990; the Company's
    Registration Statement on Form 8-A filed on September 13, 1991; and the
    Company's Annual Report on Form 10-K for the fiscal year ended March 28,
    1998.

(2) Incorporated by reference to exhibits filed with the Company's Annual Report
    on Form 10-K for the fiscal year ended March 30, 1991 and the Company's
    Annual Report on Form 10-K for the fiscal year ended March 28, 1998.

ITEM 17.  UNDERTAKINGS

    The undersigned Registrant hereby undertakes:

    (1) To file, during any period in which offers or sales are being made, a
post-effective amendment to this Registration Statement:

        (a) To include any prospectus required by Section 10(a)(3) of the
    Securities Act,

        (b) To reflect in the prospectus any facts or events arising after the
    effective date of the registration statement (or the most recent
    post-effective amendment thereof) which, individually or in the aggregate,
    represent a fundamental change in the information set forth in the
    Registration Statement. Notwithstanding the foregoing, any increase or
    decrease in volume of securities offered (if the total dollar value of
    securities offered would not exceed that which was registered) and any
    deviation from the low or high end of the estimated maximum offering range
    may be reflected in the form of prospectus filed with the Commission
    pursuant to Rule 424(b) if, in the aggregate, the changes in volume and
    price represent no more than a 20 percent change in the maximum aggregate

                                      II-2
<PAGE>
    offering price set forth in the "Calculation of Registration Fee" table in
    the effective registration statement,

        (c) To include any material information with respect to the plan of
    distribution not previously disclosed in the Registration Statement or any
    material change to such information in the Registration Statement;

provided, however, that clauses (a) and (b) do not apply if the information
required to be included in a post-effective amendment by such clauses is
contained in periodic reports filed with or furnished to the Securities and
Exchange Commission by the Registrant pursuant to Section 13 or Section 15(d) of
the Securities Exchange Act of 1934 (the "Exchange Act") that are incorporated
by reference in the Registration Statement.

    (2) That, for the purpose of determining any liability under the Securities
Act, each such post-effective amendment shall be deemed a new registration
statement relating to the securities offered therein, and the offering of such
securities at that time shall be deemed to be the initial bona fide offering
thereof.

    (3) To remove from registration by means of a post-effective amendment any
of the securities being registered which remain unsold at the termination of the
offering.

    (4) That, for purposes of determining any liability under the Securities
Act, each filing of the Registrant's annual report pursuant to Section 13(a) or
Section 15(d) of the Exchange Act that is incorporated by reference in this
Registration Statement shall be deemed to be a new registration statement
relating to the securities offered therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

    Insofar as indemnification for liabilities arising under the Securities Act
may be permitted to directors, officers and controlling persons of the
Registrant pursuant to the provisions described under Item 15 above, or
otherwise, the Registrant has been advised that in the opinion of the Securities
and Exchange Commission such indemnification is against public policy as
expressed in the Securities Act and is, therefore, unenforceable. In the event
that a claim for indemnification against such liabilities, other than the
payment by the Registrant of expenses incurred or paid by a director, officer or
controlling person of the Registrant in the successful defense of any action,
suit or proceeding, is asserted by such director, officer or controlling person
in connection with the securities being registered, the Registrant will, unless
in the opinion of its counsel the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question whether
such indemnification by it is against public policy as expressed in the
Securities Act and will be governed by the final adjudication of such issue.

    The undersigned Registrant hereby undertakes that:

    (1) For purposes of determining any liability under the Securities Act of
1933, the information omitted from the form of prospectus filed as part of this
registration statement in reliance upon Rule 430A and contained in a form of
prospectus filed by the registrant pursuant to Rule 424(b)(1) or (4) or 497(h)
under the Securities Act shall be deemed to be part of this registration
statement as of the time it was declared effective.

    (2) For the purpose of determining any liability under the Securities Act of
1933, each post-effective amendment that contains a form of prospectus shall be
deemed to be a new registration statement relating to the securities offered
therein, and the offering of such securities at that time shall be deemed to be
the initial bona fide offering thereof.

                                      II-3
<PAGE>
                                   SIGNATURES

    Pursuant to the requirements of the Securities Act, the Registrant certifies
that it has reasonable grounds to believe that it meets all of the requirements
for filing on Form S-3 and has duly caused this Registration Statement on
Form S-3 to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Hillsboro, State of Oregon, on December 21, 1999.

<TABLE>
<S>                                                    <C>
                                                       LATTICE SEMICONDUCTOR CORPORATION

                                                       By:  /s/ CYRUS Y. TSUI
                                                       --------------------------------------------
                                                       Name:  Cyrus Y. Tsui
                                                       Title:   PRESIDENT, CHIEF EXECUTIVE OFFICER
                                                              AND CHAIRMAN OF THE BOARD
</TABLE>

                               POWER OF ATTORNEY

    KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears
below hereby constitutes and appoints Cyrus Y. Tsui and Stephen A. Skaggs, and
each of them acting individually, as his attorney-in-fact, each with full power
of substitution, for him in any and all capacities, to sign any and all
amendments to this Registration Statement on Form S-3, and to file the same,
with exhibits thereto and other documents in connection therewith, with the
Securities and Exchange Commission, hereby ratifying and confirming all that
each of said attorneys-in-fact, or any substitute, may do or cause to be done by
virtue hereof.

    Pursuant to the requirements of the Securities Act of 1933, this
Registration Statement has been signed by the following persons in the
capacities and on the dates indicated:

<TABLE>
<CAPTION>
                SIGNATURE                                  TITLE                        DATE
                ---------                                  -----                        ----
<C>                                         <S>                                   <C>
            /s/ CYRUS Y. TSUI               President, Chief Executive Officer    December 21, 1999
    ---------------------------------         (Principal Executive Officer) and
              Cyrus Y. Tsui                   Chairman of the Board of Directors

                                            Senior Vice President, Chief          December 21, 1999
          /s/ STEPHEN A. SKAGGS               Financial Officer (Principal
    ---------------------------------         Financial and Accounting Officer)
            Stephen A. Skaggs                 and Secretary

           /s/ MARK O. HATFIELD                                                   December 21, 1999
    ---------------------------------       Director
             Mark O. Hatfield

           /s/ DANIEL S. HAUER                                                    December 21, 1999
    ---------------------------------       Director
             Daniel S. Hauer

            /s/ HARRY A. MERLO                                                    December 21, 1999
    ---------------------------------       Director
              Harry A. Merlo

           /s/ LARRY W. SONSINI                                                   December 21, 1999
    ---------------------------------       Director
             Larry W. Sonsini

          /s/ DOUGLAS C. STRAIN                                                   December 21, 1999
    ---------------------------------       Director
            Douglas C. Strain
</TABLE>

                                      II-4
<PAGE>
                                 EXHIBIT INDEX

<TABLE>
<CAPTION>
           EXHIBIT
           NUMBER           EXHIBIT TITLE
    ---------------------   -------------
    <C>                     <S>
             3.1            Certificate of Incorporation, as amended.(1)

             3.2            Bylaws, as amended.(2)

             4.1            Indenture.

             4.2            Registration Rights Agreement.

             4.3            Form of Note (included in Exhibit 4.1).

             5.1*           Opinion of Wilson Sonsini Goodrich & Rosati, Professional
                              Corporation.

            12.1            Computation of Ratio of Earnings to Fixed Charges.

            23.1            Consent of PricewaterhouseCoopers LLP, Independent
                              Accountants.

            23.2            Consent of Ernst & Young LLP, Independent Auditors.

            23.3*           Consent of Wilson Sonsini Goodrich & Rosati, Professional
                              Corporation (included in Exhibit 5.1).

            24.1            Power of Attorney of certain directors and officers of
                              Lattice Semiconductor Corporation (see page II-4 of this
                              Form S-3).

            25.1            Form T-1 Statement of Eligibility of Trustee for Indenture
                              under the Trust Indenture Act of 1939.
</TABLE>

- ------------------------

*   To be filed by amendment.

(1) Incorporated by reference to exhibits filed with the Company's Annual Report
    on Form 10-K for the fiscal year ended March 31, 1990; the Company's
    Registration Statement on Form 8-A filed on September 13, 1991; and the
    Company's Annual Report on Form 10-K for the fiscal year ended March 28,
    1998.

(2) Incorporated by reference to exhibits filed with the Company's Annual Report
    on Form 10-K for the fiscal year ended March 30, 1991 and the Company's
    Annual Report on Form 10-K for the fiscal year ended March 28, 1998.

                                      II-5

<PAGE>

                                                                    EXHIBIT 4.1


- -------------------------------------------------------------------------------



                          LATTICE SEMICONDUCTOR CORPORATION


                                          To


               STATE STREET BANK AND TRUST COMPANY OF CALIFORNIA, N.A.,

                                      as Trustee


                             ___________________________


                                      INDENTURE


                                     Dated as of
                                   November 1, 1999


                            ___________________________


                   4 3/4% Convertible Subordinated Notes due 2006



- -------------------------------------------------------------------------------

<PAGE>
                             TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                          PAGE
                                                                          ----
<S>                                                                       <C>

ARTICLE ONE DEFINITIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . .1

     Section 1.1.   Definitions. . . . . . . . . . . . . . . . . . . . . . . .1

ARTICLE TWO ISSUE, DESCRIPTION, EXECUTION, REGISTRATION AND EXCHANGE OF
                     NOTES . . . . . . . . . . . . . . . . . . . . . . . . . .7

     Section 2.1.   Designation Amount and Issue of Notes. . . . . . . . . . .7
     Section 2.2.   Form of Notes. . . . . . . . . . . . . . . . . . . . . . .7
     Section 2.3.   Date and Denomination of Notes; Payments of Interest . . .8
     Section 2.4.   Execution of Notes . . . . . . . . . . . . . . . . . . . .9
     Section 2.5.   Exchange and Registration of Transfer of Notes;
                    Restrictions on Transfer; Depositary.. . . . . . . . . . 10
     Section 2.6.   Mutilated, Destroyed, Lost or Stolen Notes.. . . . . . . 16
     Section 2.7.   Temporary Notes. . . . . . . . . . . . . . . . . . . . . 17
     Section 2.8.   Cancellation of Notes Paid, Etc. . . . . . . . . . . . . 17
     Section 2.9.   CUSIP Numbers. . . . . . . . . . . . . . . . . . . . . . 17

ARTICLE THREE REDEMPTION OF NOTES. . . . . . . . . . . . . . . . . . . . . . 18

     Section 3.1.   Initial Prohibition on Redemption. . . . . . . . . . . . 18
     Section 3.2.   Notice of Redemptions; Selection of Notes. . . . . . . . 18
     Section 3.3.   Payment of Notes Called for Redemption . . . . . . . . . 19
     Section 3.4.   Conversion Arrangement on Call for Redemption. . . . . . 20
     Section 3.5.   Redemption at Option of Holders. . . . . . . . . . . . . 20

ARTICLE FOUR SUBORDINATION OF NOTES. . . . . . . . . . . . . . . . . . . . . 22

     Section 4.1.   Agreement of Subordination . . . . . . . . . . . . . . . 22
     Section 4.2.   Payments to Noteholders. . . . . . . . . . . . . . . . . 23
     Section 4.3.   Subrogation of Notes . . . . . . . . . . . . . . . . . . 25
     Section 4.4.   Authorization to Effect Subordination. . . . . . . . . . 26
     Section 4.5.   Notice to Trustee. . . . . . . . . . . . . . . . . . . . 26
     Section 4.6.   Trustee's Relation to Senior Indebtedness. . . . . . . . 27
     Section 4.7.   No Impairment of Subordination . . . . . . . . . . . . . 27
     Section 4.8.   Certain Conversions Not Deemed Payment . . . . . . . . . 28
     Section 4.9.   Article Applicable to Paying Agents. . . . . . . . . . . 28
     Section 4.10.  Senior Indebtedness Entitled to Rely . . . . . . . . . . 28
     Section 4.11.  Reliance on Judicial Order or Certificate of
                    Liquidating Agent. . . . . . . . . . . . . . . . . . . . 28

ARTICLE FIVE PARTICULAR COVENANTS OF THE COMPANY . . . . . . . . . . . . . . 29

     Section 5.1.   Payment of Principal, Premium and Interest . . . . . . . 29
     Section 5.2.   Maintenance of Office or Agency. . . . . . . . . . . . . 29
     Section 5.3.   Appointments to Fill Vacancies in Trustee's Office . . . 29
     Section 5.4.   Provisions as to Paying Agent. . . . . . . . . . . . . . 29
     Section 5.5.   Existence. . . . . . . . . . . . . . . . . . . . . . . . 30
     Section 5.6.   Maintenance of Properties. . . . . . . . . . . . . . . . 31
     Section 5.7.   Payment of Taxes and Other Claims. . . . . . . . . . . . 31
     Section 5.8.   Rule 144A Information Requirement. . . . . . . . . . . . 31


                                     -i-


<PAGE>


     Section 5.9.   Stay, Extension and Usury Laws . . . . . . . . . . . . . 31
     Section 5.10.  Compliance Certificate . . . . . . . . . . . . . . . . . 32
     Section 5.11.  Liquidated Damages Notice. . . . . . . . . . . . . . . . 32

ARTICLE SIX NOTEHOLDERS' LISTS AND REPORTS BY THE COMPANY AND THE
                    TRUSTEE. . . . . . . . . . . . . . . . . . . . . . . . . 32

     Section 6.1.   Noteholders' Lists . . . . . . . . . . . . . . . . . . . 32
     Section 6.2.   Preservation and Disclosure of Lists . . . . . . . . . . 33
     Section 6.3.   Reports by Trustee . . . . . . . . . . . . . . . . . . . 33
     Section 6.4.   Reports by Company . . . . . . . . . . . . . . . . . . . 33

ARTICLE SEVEN REMEDIES OF THE TRUSTEE AND NOTEHOLDERS ON AN EVENT OF
                    DEFAULT. . . . . . . . . . . . . . . . . . . . . . . . . 34

     Section 7.1.   Events of Default. . . . . . . . . . . . . . . . . . . . 34
     Section 7.2.   Payments of Notes on Default; Suit Therefor. . . . . . . 35
     Section 7.3.   Application of Monies Collected by Trustee . . . . . . . 36
     Section 7.4.   Proceedings by Noteholder. . . . . . . . . . . . . . . . 37
     Section 7.5.   Proceedings by Trustee . . . . . . . . . . . . . . . . . 38
     Section 7.6.   Remedies Cumulative and Continuing . . . . . . . . . . . 38
     Section 7.7.   Direction of Proceedings and Waiver of Defaults by
                    Majority of Noteholders. . . . . . . . . . . . . . . . . 38
     Section 7.8.   Notice of Defaults . . . . . . . . . . . . . . . . . . . 39
     Section 7.9.   Undertaking to Pay Costs . . . . . . . . . . . . . . . . 39

ARTICLE EIGHT THE TRUSTEE. . . . . . . . . . . . . . . . . . . . . . . . . . 39

     Section 8.1.   Duties and Responsibilities of Trustee . . . . . . . . . 39
     Section 8.2.   Reliance on Documents, Opinions, Etc . . . . . . . . . . 40
     Section 8.3.   No Responsibility for Recitals, Etc. . . . . . . . . . . 41
     Section 8.4.   Trustee, Paying Agents, Conversion Agents or Registrar
                    May Own Notes. . . . . . . . . . . . . . . . . . . . . . 41
     Section 8.5.   Monies to be Held in Trust . . . . . . . . . . . . . . . 41
     Section 8.6.   Compensation and Expenses of Trustee . . . . . . . . . . 41
     Section 8.7.   Officers' Certificate as Evidence. . . . . . . . . . . . 42
     Section 8.8.   Conflicting Interests of Trustee . . . . . . . . . . . . 42
     Section 8.9.   Eligibility of Trustee . . . . . . . . . . . . . . . . . 42
     Section 8.10.  Resignation or Removal of Trustee. . . . . . . . . . . . 42
     Section 8.11.  Acceptance by Successor Trustee. . . . . . . . . . . . . 44
     Section 8.12.  Succession by Merger, Etc. . . . . . . . . . . . . . . . 44
     Section 8.13.  Preferential Collection of Claims. . . . . . . . . . . . 45
     Section 8.14.  Trustee's Application for Instructions from the
                    Company. . . . . . . . . . . . . . . . . . . . . . . . . 45

ARTICLE NINE THE NOTEHOLDERS . . . . . . . . . . . . . . . . . . . . . . . . 45

     Section 9.1.   Action by Noteholders. . . . . . . . . . . . . . . . . . 45
     Section 9.2.   Proof of Execution by Noteholders. . . . . . . . . . . . 45
     Section 9.3.   Who Are Deemed Absolute Owners . . . . . . . . . . . . . 45
     Section 9.4.   Company-Owned Notes Disregarded. . . . . . . . . . . . . 46


                                     -ii-


<PAGE>


     Section 9.5.   Revocation of Consents; Future Holders Bound . . . . . . 46

ARTICLE TEN MEETINGS OF NOTEHOLDERS. . . . . . . . . . . . . . . . . . . . . 46

     Section 10.1.  Purpose of Meetings. . . . . . . . . . . . . . . . . . . 46
     Section 10.2.  Call of Meetings by Trustee. . . . . . . . . . . . . . . 47
     Section 10.3.  Call of Meetings by Company or Noteholders . . . . . . . 47
     Section 10.4.  Qualifications for Voting. . . . . . . . . . . . . . . . 47
     Section 10.5.  Regulations. . . . . . . . . . . . . . . . . . . . . . . 47
     Section 10.6.  Voting . . . . . . . . . . . . . . . . . . . . . . . . . 48
     Section 10.7.  No Delay of Rights by Meeting. . . . . . . . . . . . . . 48

ARTICLE ELEVEN SUPPLEMENTAL INDENTURES . . . . . . . . . . . . . . . . . . . 48

     Section 11.1.  Supplemental Indentures Without Consent of
                    Noteholders. . . . . . . . . . . . . . . . . . . . . . . 48
     Section 11.2.  Supplemental Indenture with Consent of Noteholders . . . 49
     Section 11.3.  Effect of Supplemental Indenture . . . . . . . . . . . . 50
     Section 11.4.  Notation on Notes. . . . . . . . . . . . . . . . . . . . 50
     Section 11.5.  Evidence of Compliance of Supplemental Indenture to
                    be Furnished to Trustee. . . . . . . . . . . . . . . . . 51

ARTICLE TWELVE CONSOLIDATION, MERGER, SALE, CONVEYANCE AND LEASE . . . . . . 51

     Section 12.1.  Company May Consolidate, Etc . . . . . . . . . . . . . . 51
     Section 12.2.  Successor Corporation to be Substituted. . . . . . . . . 51
     Section 12.3.  Opinion of Counsel to be Given Trustee . . . . . . . . . 52

ARTICLE THIRTEEN SATISFACTION AND DISCHARGE OF INDENTURE . . . . . . . . . . 52

     Section 13.1.  Discharge of Indenture . . . . . . . . . . . . . . . . . 52
     Section 13.2.  Deposited Monies to be Held in Trust by Trustee. . . . . 52
     Section 13.3.  Paying Agent to Repay Monies Held. . . . . . . . . . . . 53
     Section 13.4.  Return of Unclaimed Monies . . . . . . . . . . . . . . . 53
     Section 13.5.  Reinstatement. . . . . . . . . . . . . . . . . . . . . . 53

ARTICLE FOURTEEN IMMUNITY OF INCORPORATORS, STOCKHOLDERS, OFFICERS AND
                    DIRECTORS. . . . . . . . . . . . . . . . . . . . . . . . 53

     Section 14.1.  Indenture and Notes Solely Corporate Obligations . . . . 53

ARTICLE FIFTEEN CONVERSION OF NOTES. . . . . . . . . . . . . . . . . . . . . 54

     Section 15.1.  Right to Convert . . . . . . . . . . . . . . . . . . . . 54
     Section 15.2.  Exercise of Conversion Privilege; Issuance of Common
                    Stock on Conversion; No Adjustment for Interest or
                    Dividends. . . . . . . . . . . . . . . . . . . . . . . . 54
     Section 15.3.  Cash Payments in Lieu of Fractional Shares . . . . . . . 55
     Section 15.4.  Conversion Price . . . . . . . . . . . . . . . . . . . . 56
     Section 15.5.  Adjustment of Conversion Price . . . . . . . . . . . . . 56
     Section 15.6.  Effect of Reclassification, Consolidation, Merger
                    or Sale. . . . . . . . . . . . . . . . . . . . . . . . . 63
     Section 15.7.  Taxes on Shares Issued . . . . . . . . . . . . . . . . . 64


                                    -iii-


<PAGE>


     Section 15.8.  Reservation of Shares; Shares to be Fully Paid;
                    Compliance with Governmental Requirements; Listing
                    of Common Stock. . . . . . . . . . . . . . . . . . . . . 64
     Section 15.9.  Responsibility of Trustee. . . . . . . . . . . . . . . . 65
     Section 15.10. Notice to Holders Prior to Certain Actions . . . . . . . 65

ARTICLE SIXTEEN MISCELLANEOUS PROVISIONS . . . . . . . . . . . . . . . . . . 66

     Section 16.1.  Provisions Binding on Company's Successors . . . . . . . 66
     Section 16.2.  Official Acts by Successor Corporation . . . . . . . . . 66
     Section 16.3.  Addresses for Notices, Etc . . . . . . . . . . . . . . . 66
     Section 16.4.  Governing Law. . . . . . . . . . . . . . . . . . . . . . 67
     Section 16.5.  Evidence of Compliance with Conditions Precedent;
                    Certificates to Trustee. . . . . . . . . . . . . . . . . 67
     Section 16.6.  Legal Holidays . . . . . . . . . . . . . . . . . . . . . 67
     Section 16.7.  Trust Indenture Act. . . . . . . . . . . . . . . . . . . 67
     Section 16.8.  No Security Interest Created . . . . . . . . . . . . . . 68
     Section 16.9.  Benefits of Indenture. . . . . . . . . . . . . . . . . . 68
     Section 16.10. Table of Contents, Headings, Etc . . . . . . . . . . . . 68
     Section 16.11. Authenticating Agent . . . . . . . . . . . . . . . . . . 68
     Section 16.12. Execution in Counterparts. . . . . . . . . . . . . . . . 69
     Section 16.13. Severability . . . . . . . . . . . . . . . . . . . . . . 69
</TABLE>



                                     -iv-

<PAGE>


Reconciliation and Tie Between the Trust Indenture Act of 1939 and Indenture,
dated as of November 1, 1999, between Lattice Semiconductor Corporation and
State Street Bank and Trust Company of California, N.A., as Trustee.

<TABLE>
<CAPTION>

TRUST INDENTURE ACT SECTION                                   INDENTURE SECTION
<S>                                                           <C>
Section 310(a)(1). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8.9
     (a)(2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8.9
     (a)(3). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N.A.
     (a)(4). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N.A.
     (a)(5). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8.9
     (b) . . . . . . . . . . . . . . . . . . . . . . . . . 8.8; 8.9; 8.10; 8.11
Section 311(a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.13
     (b) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.13
     (b)(2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.13
Section 312(a) . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.1; 6.2(a)
     (b) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.2(b)
     (c) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.2(c)
Section 313(a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.3(a)
     (b) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.3(a)
     (c) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.3(a)
     (d) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.3(b)
Section 314(a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6.4
     (b) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N.A.
     (c)(1). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.5
     (c)(2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.5
     (c)(3). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N.A.
     (d) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N.A.
     (e) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.5
Section 315(a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8.1
     (b) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7.8
     (c) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8.1
     (d) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8.1
     (d)(1). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8.1(a)
     (d)(2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8.1(b)
     (d)(3). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8.1(c)
     (e) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7.9
Section 316(a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7.7
     (a)(1)(A) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7.7
     (a)(1)(B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7.7
     (a)(2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . N.A.
     (b) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7.4
Section 317(a)(1). . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7.5
     (a)(2). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7.5
     (b) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5.4
Section 318(a) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16.7
</TABLE>

- ----------------------
*    Note:  This reconciliation and tie shall not, for any purpose, be deemed to
     be a part of the Indenture.
**   Note:  N.A. means Not Applicable.


<PAGE>


                                      INDENTURE

       INDENTURE, dated as of November 1, 1999, between Lattice Semiconductor
Corporation, a Delaware corporation (hereinafter called the "Company"),
having its principal office at 5555 N.E. Moore Court, Hillsboro, Oregon
97124-6421, and State Street Bank and Trust Company of California, N.A., a
national banking association organized under the laws of the United States,
as trustee hereunder (hereinafter called the "Trustee"), having its principal
corporate office at 633 West 5th Street, 12th Floor, Los Angeles,
California 90071.

                                W I T N E S S E T H:

       WHEREAS, for its lawful corporate purposes, the Company has duly
authorized the issue of its 4 3/4% Convertible Subordinated Notes due 2006
(hereinafter called the "Notes"), in an aggregate principal amount not to
exceed $260,000,000 and, to provide the terms and conditions upon which the
Notes are to be authenticated, issued and delivered, the Company has duly
authorized the execution and delivery of this Indenture; and

       WHEREAS, the Notes, the certificate of authentication to be borne by
the Notes, a form of assignment, a form of option to elect repayment upon a
Fundamental Change, and a form of conversion notice to be borne by the Notes
are to be substantially in the forms hereinafter provided for; and

       WHEREAS, all acts and things necessary to make the Notes, when
executed by the Company and authenticated and delivered by the Trustee or a
duly authorized authenticating agent, as in this Indenture provided, the
valid, binding and legal obligations of the Company, and to constitute this
Indenture a valid agreement according to its terms, have been done and
performed, and the execution of this Indenture and the issue hereunder of the
Notes have in all respects been duly authorized.

       NOW, THEREFORE, THIS INDENTURE WITNESSETH:

       That in order to declare the terms and conditions upon which the Notes
are, and are to be, authenticated, issued and delivered, and in consideration
of the premises and of the purchase and acceptance of the Notes by the
holders thereof, the Company covenants and agrees with the Trustee for the
equal and proportionate benefit of the respective holders from time to time
of the Notes (except as otherwise provided below), as follows:

                                    ARTICLE ONE

                                    DEFINITIONS

       SECTION 1.1.   DEFINITIONS.  The terms defined in this Section 1.1
(except as herein otherwise expressly provided or unless the context
otherwise requires) for all purposes of this Indenture and of any indenture
supplemental hereto shall have the respective meanings specified in this
Section 1.1.  All other terms used in this Indenture that are defined in the
Trust Indenture Act or which are by reference therein defined in the
Securities Act (except as herein otherwise expressly provided or unless the
context otherwise requires) shall have the meanings assigned to such terms in
said Trust Indenture Act and in said Securities Act as in force at the date
of the execution of this Indenture.  The words "herein", "hereof",
"hereunder", and words of similar import refer to this Indenture as a whole
and not to any particular Article, Section or other Subdivision.  The terms
defined in this Article include the plural as well as the singular.


<PAGE>


       "AFFILIATE" of any specified Person means any other Person directly or
indirectly controlling or controlled by or under direct or indirect common
control with such specified Person.  For the purposes of this definition,
"control", when used with respect to any specified Person means the power to
direct or cause the direction of the management and policies of such Person,
directly or indirectly, whether through the ownership of voting securities,
by contract or otherwise, and the terms "controlling" and "controlled" have
meanings correlative to the foregoing.

       "BOARD OF DIRECTORS" means the Board of Directors of the Company or a
committee of such Board duly authorized to act for it hereunder.

       "BUSINESS DAY" means each Monday, Tuesday, Wednesday, Thursday and
Friday which is not a day on which the banking institutions in The City of
New York or the city in which the Corporate Trust Office is located are
authorized or obligated by law or executive order to close or be closed.

       "CLOSING PRICE" has the meaning specified in Section 15.5(h)(1).

       "COMMISSION" means the Securities and Exchange Commission, as from
time to time constituted, created under the Exchange Act, or, if at any time
after the execution of this Indenture such Commission is not existing and
performing the duties now assigned to it under the Trust Indenture Act, then
the body performing such duties at such time.

       "COMMON STOCK" means any stock of any class of the Company which has
no preference in respect of dividends or of amounts payable in the event of
any voluntary or involuntary liquidation, dissolution or winding up of the
Company and which is not subject to redemption by the Company.  Subject to
the provisions of Section 15.6, however, shares issuable on conversion of
Notes shall include only shares of the class designated as common stock of
the Company at the date of this Indenture (namely, the Common Stock, par
value $.01 per share) or shares of any class or classes resulting from any
reclassification or reclassifications thereof and which have no preference in
respect of dividends or of amounts payable in the event of any voluntary or
involuntary liquidation, dissolution or winding up of the Company and which
are not subject to redemption by the Company; provided, however, that if at
any time there shall be more than one such resulting class, the shares of
each such class then so issuable shall be substantially in the proportion
which the total number of shares of such class resulting from all such
reclassifications bears to the total number of shares of all such classes
resulting from all such reclassifications.

       "COMPANY" means the corporation named as the "Company" in the first
paragraph of this Indenture, and, subject to the provisions of Article
Twelve, shall include its successors and assigns.

       "COMPANY NOTICE" has the meaning specified in Section 3.5(b).

       "CONVERSION PRICE" has the meaning specified in Section 15.4.

       "CORPORATE TRUST OFFICE" or other similar term, means the designated
office of the Trustee at which at any particular time its corporate trust
business shall be administered, which office is, at the date as of which this
Indenture is dated, located at 633 West 5th Street, 12th Floor, Los Angeles,
California 90071, Attention: Corporate Trust Department (Lattice
Semiconductor Corporation, 4 3/4% Convertible Subordinated Notes due 2006).

       "CREDIT AGREEMENT" means that certain Credit Agreement dated as of
June 15, 1999 among the Company, the Lenders from time to time parties
thereto and ABM AMRO Bank N.V., as Agent (including all


                                     -2-


<PAGE>


deferrals, renewals, extensions or refundings of, or amendments,
modifications or supplements to, the foregoing).

       "CUSTODIAN" means State Street Bank and Trust Company of California,
N.A., as custodian with respect to the Notes in global form, or any successor
entity thereto.

       "DEFAULT" means any event that is, or after notice or passage of time,
or both, would be, an Event of Default.

       "DEFAULTED INTEREST" has the meaning specified in Section 2.3.

       "DEPOSITARY" means, with respect to the Notes issuable or issued in
whole or in part in global form, the Person specified in Section 2.5(d) as
the Depositary with respect to such Notes, until a successor shall have been
appointed and become such pursuant to the applicable provisions of this
Indenture, and thereafter, "Depositary" shall mean or include such successor.

       "DESIGNATED SENIOR INDEBTEDNESS" means Senior Indebtedness under the
Credit Agreement and the Company's obligations under any other particular
Senior Indebtedness in which the instrument creating or evidencing the same
or the assumption or guarantee thereof (or related agreements or documents to
which the Company is a party) expressly provides that such Senior
Indebtedness shall be "Designated Senior Indebtedness" for purposes of this
Indenture (provided that such instrument, agreement or other document may
place limitations and conditions on the right of such Senior Indebtedness to
exercise the rights of Designated Senior Indebtedness); provided that while
the Credit Agreement shall be outstanding, "Designated Senior Indebtedness"
shall not include any Senior Indebtedness other than Senior Indebtedness
incurred in connection with the Credit Agreement and Senior Indebtedness
incurred in connection with the Indebtedness described in clause (c) of the
definition of "Indebtedness."  If any payment made to any holder of any
Designated Senior Indebtedness or its Representative with respect to such
Designated Senior Indebtedness is rescinded or must otherwise be returned by
such holder or Representative upon the insolvency, bankruptcy or
reorganization of the Company or otherwise, the reinstated Indebtedness of
the Company arising as a result of such rescission or return shall constitute
Designated Senior Indebtedness effective as of the date of such rescission or
return.

       "EVENT OF DEFAULT" means any event specified in Section 7.1(a), (b),
(c), (d) or (e).

       "EXCHANGE ACT" means the Securities Exchange Act of 1934, as amended,
and the rules and regulations promulgated thereunder, as in effect from time
to time.

       "FUNDAMENTAL CHANGE" means the occurrence of any transaction or event
in connection with which all or substantially all of the Common Stock shall
be exchanged for, converted into, acquired for or constitute solely the right
to receive consideration (whether by means of an exchange offer, liquidation,
tender offer, consolidation, merger, combination, reclassification,
recapitalization or otherwise) which is not all or substantially all common
stock listed (or, upon consummation of or immediately following such
transaction or event, which will be listed) on a United States national
securities exchange or approved for quotation on the Nasdaq National Market
or any similar United States system of automated dissemination of quotations
of securities prices.

       "GLOBAL NOTE" has the meaning set forth in Section 2.5(b).


                                     -3-


<PAGE>


       "INDEBTEDNESS" means, with respect to any Person, and without
duplication, (a) all indebtedness, obligations and other liabilities
(contingent or otherwise) of such Person for borrowed money (including
obligations of the Company in respect of overdrafts, foreign exchange
contracts, currency exchange agreements, interest rate protection agreements,
and any loans or advances from banks, whether or not evidenced by notes or
similar instruments) or evidenced by bonds, debentures, notes or similar
instruments (whether or not the recourse of the lender is to the whole of the
assets of such Person or to only a portion thereof), other than any account
payable or other accrued current liability or obligation incurred in the
ordinary course of business in connection with the obtaining of materials or
services; (b) all reimbursement obligations and other liabilities (contingent
or otherwise) of such Person with respect to letters of credit, bank
guarantees or bankers' acceptances; (c) all obligations and liabilities
(contingent or otherwise) in respect of leases of such Person required, in
conformity with generally accepted accounting principles, to be accounted for
as capitalized lease obligations on the balance sheet of such Person and all
obligations and other liabilities (contingent or otherwise) under any lease
or related document (including a purchase agreement) in connection with the
lease of real property which provides that such Person is contractually
obligated to purchase or cause a third party to purchase the leased property
and thereby guarantee a minimum residual value of the leased property to the
lessor and the obligations of such Person under such lease or related
document to purchase or to cause a third party to purchase such leased
property; (d) all obligations of such Person (contingent or otherwise) with
respect to an interest rate or other swap, cap or collar agreement or other
similar instrument or agreement or foreign currency hedge, exchange, purchase
or similar instrument or agreement; (e) all direct or indirect guaranties or
similar agreements by such Person in respect of, and obligations or
liabilities (contingent or otherwise) of such Person to purchase or otherwise
acquire or otherwise assure a creditor against loss in respect of,
indebtedness, obligations or liabilities of another Person of the kind
described in clauses (a) through (d); (f) any indebtedness or other
obligations described in clauses (a) through (e) secured by any mortgage,
pledge, lien or other encumbrance existing on property which is owned or held
by such Person, regardless of whether the indebtedness or other obligation
secured thereby shall have been assumed by such Person; and (g) any and all
deferrals, renewals, extensions and refundings of, or amendments,
modifications or supplements to, any indebtedness, obligation or liability of
the kind described in clauses (a) through (f).

       "INDENTURE" means this instrument as originally executed or, if
amended or supplemented as herein provided, as so amended or supplemented.

       "INITIAL PURCHASERS" means Morgan Stanley & Co. Incorporated, Goldman,
Sachs & Co., BancBoston Robertson Stephens Inc. and ABN AMRO Bank
Incorporated.

       "INSTITUTIONAL ACCREDITED INVESTOR" means an institutional "accredited
investor" within the meaning of Rule 501(a)(1), (2), (3) or (7) under the
Securities Act.

       "LIQUIDATED DAMAGES" has the meaning specified for "Liquidated Damages
Amount" in Section 2(e) of the Registration Rights Agreement.

       "NON-PAYMENT DEFAULT" has the meaning specified in Section 4.2(ii).

       "NOTE" or "NOTES" means any Note or Notes, as the case may be,
authenticated and delivered under this Indenture, including the Global Note.

       "NOTE REGISTER" has the meaning specified in Section 2.5(a).


                                     -4-


<PAGE>

       "NOTE REGISTRAR" has the meaning specified in Section 2.5(a).

       "NOTEHOLDER" or "HOLDER" as applied to any Note, or other similar terms
(but excluding the term "beneficial holder"), means any Person in whose name at
the time a particular Note is registered on the Note registrar's books.

       "NOTICE DATE" has the meaning specified in Section 3.1(b).

       "OFFICERS' CERTIFICATE", when used with respect to the Company, means a
certificate signed by both (a) the Chairman of the Board, the Chief Executive
Officer, the President or any Vice President (whether or not designated by a
number or numbers or word or words added before or after the title "Vice
President") and (b) the Treasurer or any Assistant Treasurer, the Controller or
any Assistant Controller, or the Secretary or any Assistant Secretary of the
Company.

       "OPINION OF COUNSEL" means an opinion in writing signed by legal counsel,
who may be an employee of or counsel to the Company, or other counsel reasonably
acceptable to the Trustee.

       "OPTIONAL REDEMPTION" has the meaning specified in Section 3.1(b).

       "OUTSTANDING", when used with reference to Notes and subject to the
provisions of Section 9.4, means, as of any particular time, all Notes
authenticated and delivered by the Trustee under this Indenture, except:

              (a)     Notes theretofore canceled by the Trustee or delivered to
       the Trustee for cancellation;

              (b)     Notes, or portions thereof, (i) for the redemption of
       which monies in the necessary amount shall have been deposited in trust
       with the Trustee or with any paying agent (other than the Company) or
       (ii) which shall have been otherwise defeased in accordance with Article
       Thirteen;

              (c)     Notes in lieu of which, or in substitution for which,
       other Notes shall have been authenticated and delivered pursuant to the
       terms of Section 2.6; and

              (d)     Notes converted into Common Stock pursuant to Article
       Fifteen and Notes deemed not outstanding pursuant to Article Three.

       "PAYMENT BLOCKAGE NOTICE" has the meaning specified in Section 4.2(ii).

       "PERSON" means a corporation, an association, a partnership, a limited
liability company, an individual, a joint venture, a joint stock company, a
trust, an unincorporated organization or a government or an agency or a
political subdivision thereof.

       "PORTAL MARKET" means The Portal Market operated by the National
Association of Securities Dealers, Inc. or any successor thereto.

       "PREDECESSOR NOTE" of any particular Note means every previous Note
evidencing all or a portion of the same debt as that evidenced by such
particular Note, and, for the purposes of this definition, any Note
authenticated and delivered under Section 2.6 in lieu of a lost, destroyed or
stolen Note shall be deemed to evidence the same debt as the lost, destroyed or
stolen Note that it replaces.

       "QIB" means a "qualified institutional buyer" as defined in Rule 144A.


                                      -5-
<PAGE>

       "REGISTRATION RIGHTS AGREEMENT" means that certain Registration Rights
Agreement, dated as of November 1, 1999, among the Company and the Initial
Purchasers, as amended from time to time in accordance with its terms.

       "REPRESENTATIVE" means (a) the indenture trustee or other trustee, agent
or representative for holders of Senior Indebtedness or (b) with respect to any
Senior Indebtedness that does not have any such trustee, agent or other
representative, (i) in the case of such Senior Indebtedness issued pursuant to
an agreement providing for voting arrangements as among the holders or owners of
such Senior Indebtedness, any holder or owner of such Senior Indebtedness acting
with the consent of the required persons necessary to bind such holders or
owners of such Senior Indebtedness and (ii) in the case of all other such Senior
Indebtedness, the holder or owner of such Senior Indebtedness.

       "RESPONSIBLE OFFICER", when used with respect to the Trustee, means an
officer of the Trustee in the Corporate Trust Office assigned and duly
authorized by the Trustee to administer this Indenture.

       "RESTRICTED SECURITIES" has the meaning specified in Section 2.5(d).

       "RULE 144A" means Rule 144A as promulgated under the Securities Act.

       "SECURITIES ACT" means the Securities Act of 1933, as amended, and the
rules and regulations promulgated thereunder, as in effect from time to time.

       "SENIOR INDEBTEDNESS" means the principal of, premium, if any,
interest (including all interest accruing subsequent to the commencement of
any bankruptcy or similar proceeding, whether or not a claim for
post-petition interest is allowable as a claim in any such proceeding) and
rent payable on or in connection with, and all fees, costs, expenses and
other amounts accrued or due on or in connection with, Indebtedness of the
Company, whether outstanding on the date of this Indenture or thereafter
created, incurred, assumed, guaranteed or in effect guaranteed by the Company
(including all deferrals, renewals, extensions or refundings of, or
amendments, modifications or supplements to, the foregoing), unless in the
case of any particular Indebtedness the instrument creating or evidencing the
same or the assumption or guarantee thereof expressly provides that such
Indebtedness shall not be senior in right of payment to the Notes or
expressly provides that such Indebtedness is "PARI PASSU" or "junior" to the
Notes.  Notwithstanding the foregoing, the term Senior Indebtedness shall not
include any Indebtedness of the Company to any subsidiary of the Company, a
majority of the voting stock of which is owned, directly or indirectly, by
the Company.  If any payment made to any holder of any Senior Indebtedness or
its Representative with respect to such Senior Indebtedness is rescinded or
must otherwise be returned by such holder or Representative upon the
insolvency, bankruptcy or reorganization of the Company or otherwise, the
reinstated Indebtedness of the Company arising as a result of such rescission
or return shall constitute Senior Indebtedness effective as of the date of
such rescission or return.

       "SIGNIFICANT SUBSIDIARY" means, as of any date of determination, a
Subsidiary of the Company, if as of such date of determination either (a) the
assets of such subsidiary equal 10% or more of the Company's total consolidated
assets or (b) the total revenue of which represented 10% or more of the
Company's consolidated total revenue for the most recently completed fiscal
year.

       "SUBSIDIARY" means, with respect to any Person, (i) any corporation,
association or other business entity of which more than 50% of the total voting
power of shares of capital stock or other equity interest entitled (without
regard to the occurrence of any contingency) to vote in the election of
directors, managers or


                                      -6-
<PAGE>

trustees thereof is at the time owned or controlled, directly or indirectly,
by such Person or one or more of the other subsidiaries of that Person (or a
combination thereof) and (ii) any partnership (a) the sole general partner or
managing general partner of which is such Person or a subsidiary of such
Person or (b) the only general partners of which are such Person or of one or
more subsidiaries of such Person (or any combination thereof).

       "TRADING DAY" has the meaning specified in Section 15.5(h)(5).

       "TRIGGER EVENT" has the meaning specified in Section 15.5(d).

       "TRUST INDENTURE ACT" means the Trust Indenture Act of 1939, as amended,
as it was in force at the date of this Indenture, except as provided in
Sections 11.3 and 15.6; provided, however, that, in the event the Trust
Indenture Act of 1939 is amended after the date hereof, the term "Trust
Indenture Act" shall mean, to the extent required by such amendment, the Trust
Indenture Act of 1939 as so amended.

       "TRUSTEE" means State Street Bank and Trust Company of California, N.A.
and its successors and any corporation resulting from or surviving any
consolidation or merger to which it or its successors may be a party and any
successor trustee at the time serving as successor trustee hereunder.

       The definitions of certain other terms are as specified in Sections 2.5
and 3.5 and Article Fifteen.

                                    ARTICLE TWO

                           ISSUE, DESCRIPTION, EXECUTION,
                         REGISTRATION AND EXCHANGE OF NOTES

       Section 2.1.   DESIGNATION AMOUNT AND ISSUE OF NOTES.  The Notes shall
be designated as "4 3/4% Convertible Subordinated Notes due 2006".  Notes not
to exceed the aggregate principal amount of $260,000,000 (except pursuant to
Sections 2.5, 2.6, 3.3, 3.5 and 15.2 hereof) upon the execution of this
Indenture, or from time to time thereafter, may be executed by the Company
and delivered to the Trustee for authentication, and the Trustee shall
thereupon authenticate and deliver said Notes to or upon the written order of
the Company, signed by (a) its Chairman of the Board, Chief Executive
Officer, President or any Vice President (whether or not designated by a
number or numbers or word or words added before or after the title "Vice
President") and (b) its Treasurer or any Assistant Treasurer, its Controller
or any Assistant Controller or its Secretary or any Assistant Secretary,
without any further action by the Company hereunder.

       Section 2.2.   FORM OF NOTES.  The Notes and the Trustee's certificate
of authentication to be borne by such Notes shall be substantially in the
form set forth in EXHIBIT A, which is incorporated in and made a part of this
Indenture.

       Any of the Notes may have such letters, numbers or other marks of
identification and such notations, legends and endorsements as the officers
executing the same may approve (execution thereof to be conclusive evidence
of such approval) and as are not inconsistent with the provisions of this
Indenture, or as may be required to comply with any law or with any rule or
regulation made pursuant thereto or with any rule or regulation of any
securities exchange or automated quotation system on which the Notes may be
listed, or to conform to usage.

       Any Global Note shall represent such of the outstanding Notes as shall
be specified therein and shall provide that it shall represent the aggregate
amount of outstanding Notes from time to time endorsed thereon and that the
aggregate amount of outstanding Notes represented thereby may from time to
time be increased


                                      -7-
<PAGE>

or reduced to reflect transfers or exchanges permitted hereby.  Any
endorsement of a Global Note to reflect the amount of any increase or
decrease in the amount of outstanding Notes represented thereby shall be made
by the Trustee or the Custodian, at the direction of the Trustee, in such
manner and upon instructions given by the holder of such Notes in accordance
with this Indenture.  Payment of principal of and interest and premium, if
any, on any Global Note shall be made to the holder of such Note.

       The terms and provisions contained in the form of Note attached as
EXHIBIT A hereto shall constitute, and are hereby expressly made, a part of this
Indenture and, to the extent applicable, the Company and the Trustee, by their
execution and delivery of this Indenture, expressly agree to such terms and
provisions and to be bound thereby.

       Section 2.3.   DATE AND DENOMINATION OF NOTES; PAYMENTS OF INTEREST.
The Notes shall be issuable in registered form without coupons in denominations
of $1,000 principal amount and integral multiples thereof.  Every Note shall be
dated the date of its authentication and shall bear interest from the applicable
date in each case as specified on the face of the form of Note attached as
EXHIBIT A hereto.  Interest on the Notes shall be computed on the basis of a
360-day year comprised of twelve (12) 30-day months.

       The Person in whose name any Note (or its Predecessor Note) is
registered on the Note register at the close of business on any record date
with respect to any interest payment date shall be entitled to receive the
interest payable on such interest payment date, except (i) that the interest
payable upon redemption (unless the date of redemption is an interest payment
date) will be payable to the Person to whom principal is payable and (ii) as
set forth in the next succeeding sentence.  In the case of any Note (or
portion thereof) that is converted into Common Stock during the period from
(but excluding) a record date to (but excluding) the next succeeding interest
payment date either (x) if such Note (or portion thereof) has been called for
redemption on a redemption date which occurs during such period, or is to be
redeemed in connection with a Fundamental Change on a Repurchase Date (as
defined in Section 3.5) that occurs during such period, the Company shall not
be required to pay interest on such interest payment date in respect of any
such Note (or portion thereof) except to the extent required to be paid upon
redemption of such Note or portion thereof pursuant to Section 3.3 or 3.5
hereof or (y) if such Note (or portion thereof) has not been called for
redemption on a redemption date that occurs during such period and is not to
be redeemed in connection with a Fundamental Change on a Repurchase Date that
occurs during such period, such Note (or portion thereof) that is submitted
for conversion during such period shall be accompanied by funds equal to the
interest payable on such succeeding interest payment date on the principal
amount so converted, as provided in the penultimate paragraph of Section 15.2
hereof.  Interest shall be payable at the office of the Company maintained by
the Company for such purposes in the Borough of Manhattan, City of New York,
which shall initially be an office or agency of the Trustee and may, as the
Company shall specify to the paying agent in writing by each record date, be
paid either (i) by check mailed to the address of the Person entitled thereto
as it appears in the Note register (provided that the holder of Notes with an
aggregate principal amount in excess of $2,000,000 shall, at the written
election of such holder, be paid by wire transfer in immediately available
funds) or (ii) by transfer to an account maintained by such Person located in
the United States; provided, however, that payments to the Depositary will be
made by wire transfer of immediately available funds to the account of the
Depositary or its nominee.  The term "record date" with respect to any
interest payment date shall mean the April 15 or October 15 preceding the
relevant May 1 or November 1, respectively.

       Any interest on any Note which is payable, but is not punctually paid
or duly provided for, on any May 1 or November 1 (herein called "Defaulted
Interest") shall forthwith cease to be payable to the Noteholder on the
relevant record date by virtue of his having been such Noteholder, and such
Defaulted Interest shall be paid by the Company, at its election in each
case, as provided in clause (1) or (2) below:


                                      -8-
<PAGE>

              (1)     The Company may elect to make payment of any Defaulted
       Interest to the Persons in whose names the Notes (or their respective
       Predecessor Notes) are registered at the close of business on a special
       record date for the payment of such Defaulted Interest, which shall be
       fixed in the following manner.  The Company shall notify the Trustee in
       writing of the amount of Defaulted Interest to be paid on each Note and
       the date of the payment (which shall be not less than twenty-five (25)
       days after the receipt by the Trustee of such notice, unless the Trustee
       shall consent to an earlier date), and at the same time the Company shall
       deposit with the Trustee an amount of money equal to the aggregate amount
       to be paid in respect of such Defaulted Interest or shall make
       arrangements satisfactory to the Trustee for such deposit prior to the
       date of the proposed payment, such money when deposited to be held in
       trust for the benefit of the Person entitled to such Defaulted Interest
       as in this clause provided.  Thereupon the Trustee shall fix a special
       record date for the payment of such Defaulted Interest which shall be not
       more than fifteen (15) days and not less than ten (10) days prior to the
       date of the proposed payment, and not less than ten (10) days after the
       receipt by the Trustee of the notice of the proposed payment, the Trustee
       shall promptly notify the Company of such special record date and, in the
       name and at the expense of the Company, shall cause notice of the
       proposed payment of such Defaulted Interest and the special record date
       therefor to be mailed, first-class postage prepaid, to each Noteholder at
       his address as it appears in the Note register, not less than ten (10)
       days prior to such special record date.  Notice of the proposed payment
       of such Defaulted Interest and the special record date therefor having
       been so mailed, such Defaulted Interest shall be paid to the Persons in
       whose names the Notes (or their respective Predecessor Notes) were
       registered at the close of business on such special record date and shall
       no longer be payable pursuant to the following clause (2) of this
       Section 2.3.

              (2)     The Company may make payment of any Defaulted Interest in
       any other lawful manner not inconsistent with the requirements of any
       securities exchange or automated quotation system on which the Notes may
       be listed or designated for issuance, and upon such notice as may be
       required by such exchange or automated quotation system, if, after notice
       given by the Company to the Trustee of the proposed payment pursuant to
       this clause, such manner of payment shall be deemed practicable by the
       Trustee.

       Section 2.4.   EXECUTION OF NOTES.  The Notes shall be signed in the
name and on behalf of the Company by the manual or facsimile signature of its
Chairman of the Board, Chief Executive Officer, President or any Vice President
(whether or not designated by a number or numbers or word or words added before
or after the title "Vice President") and attested by the manual or facsimile
signature of its Secretary or any of its Assistant Secretaries or its Treasurer
or any of its Assistant Treasurers (which may be printed, engraved or otherwise
reproduced thereon, by facsimile or otherwise).  Only such Notes as shall bear
thereon a certificate of authentication substantially in the form set forth on
the form of Note attached as EXHIBIT A hereto, manually executed by the Trustee
(or an authenticating agent appointed by the Trustee as provided by
Section 16.11), shall be entitled to the benefits of this Indenture or be valid
or obligatory for any purpose.  Such certificate by the Trustee (or such an
authenticating agent) upon any Note executed by the Company shall be conclusive
evidence that the Note so authenticated has been duly authenticated and
delivered hereunder and that the holder is entitled to the benefits of this
Indenture.

       In case any officer of the Company who shall have signed any of the Notes
shall cease to be such officer before the Notes so signed shall have been
authenticated and delivered by the Trustee, or disposed of by the Company, such
Notes nevertheless may be authenticated and delivered or disposed of as though
the person who signed such Notes had not ceased to be such officer of the
Company, and any Note may be signed on behalf of the Company by such persons as,
at the actual date of the execution of such Note, shall be the


                                      -9-
<PAGE>

proper officers of the Company, although at the date of the execution of this
Indenture any such person was not such an officer.

       Section 2.5.   EXCHANGE AND REGISTRATION OF TRANSFER OF NOTES;
RESTRICTIONS ON TRANSFER; DEPOSITARY.

              (a)     The Company shall cause to be kept at the Corporate
Trust Office a register (the register maintained in such office and in any
other office or agency of the Company designated pursuant to Section 5.2
being herein sometimes collectively referred to as the "Note register") in
which, subject to such reasonable regulations as it may prescribe, the
Company shall provide for the registration of Notes and of transfers of
Notes.  The Note register shall be in written form or in any form capable of
being converted into written form within a reasonably prompt period of time.
The Trustee is hereby appointed "Note registrar" for the purpose of
registering Notes and transfers of Notes as herein provided.  The Company may
appoint one or more co-registrars in accordance with Section 5.2.

       Upon surrender for registration of transfer of any Note to the Note
registrar or any co-registrar, and satisfaction of the requirements for such
transfer set forth in this Section 2.5, the Company shall execute, and the
Trustee shall authenticate and deliver, in the name of the designated
transferee or transferees, one or more new Notes of any authorized
denominations and of a like aggregate principal amount and bearing such
restrictive legends as may be required by this Indenture.

       Notes may be exchanged for other Notes of any authorized denominations
and of a like aggregate principal amount, upon surrender of the Notes to be
exchanged at any such office or agency maintained by the Company pursuant to
Section 5.2.  Whenever any Notes are so surrendered for exchange, the Company
shall execute, and the Trustee shall authenticate and deliver, the Notes
which the Noteholder making the exchange is entitled to receive bearing
registration numbers not contemporaneously outstanding.

       All Notes issued upon any registration of transfer or exchange of
Notes shall be the valid obligations of the Company, evidencing the same
debt, and entitled to the same benefits under this Indenture, as the Notes
surrendered upon such registration of transfer or exchange.

       All Notes presented or surrendered for registration of transfer or for
exchange, redemption or conversion shall (if so required by the Company or
the Note registrar) be duly endorsed, or be accompanied by a written
instrument or instruments of transfer in form satisfactory to the Company,
and the Notes shall be duly executed by the Noteholder thereof or his
attorney duly authorized in writing.

       No service charge shall be made to any holder for any registration of
transfer or exchange of Notes, but the Company may require payment by the
holder of a sum sufficient to cover any tax, assessment or other governmental
charge that may be imposed in connection with any registration of transfer or
exchange of Notes.

       Neither the Company nor the Trustee nor any Note registrar shall be
required to exchange or register a transfer of (a) any Notes for a period of
fifteen (15) days next preceding any selection of Notes to be redeemed, (b)
any Notes or portions thereof called for redemption pursuant to Section 3.2,
(c) any Notes or portions thereof surrendered for conversion pursuant to
Article Fifteen or (d) any Notes or portions thereof tendered for redemption
(and not withdrawn) pursuant to Section 3.5.


                                      -10-
<PAGE>

              (b)     So long as the Notes are eligible for book-entry
settlement with the Depositary, or unless otherwise required by law, all
Notes that, upon initial issuance are beneficially owned by QIBs or as a
result of a sale or transfer after initial issuance are beneficially owned by
QIBs, will be represented by one or more Notes in global form registered in
the name of the Depositary or the nominee of the Depositary (the "Global
Note"), except as otherwise specified below.  The transfer and exchange of
beneficial interests in any such Global Note shall be effected through the
Depositary in accordance with this Indenture and the procedures of the
Depositary therefor.  The Trustee shall make appropriate endorsements to
reflect increases or decreases in the principal amounts of any such Global
Note as set forth on the face of the Note ("Principal Amount") to reflect any
such transfers.  Except as provided below, beneficial owners of a Global Note
shall not be entitled to have certificates registered in their names, will
not receive or be entitled to receive physical delivery of certificates in
definitive form and will not be considered holders of such Global Note.

              (c)     So long as the Notes are eligible for book-entry
settlement with the Depositary, or unless otherwise required by law, upon any
transfer of a definitive Note to a QIB in accordance with Rule 144A, and upon
receipt of the definitive Note or Notes being so transferred, together with a
certification, substantially in the form on the reverse of the Note, from the
transferor that the transfer is being made in compliance with Rule 144A (or
other evidence satisfactory to the Trustee), the Trustee shall make an
endorsement on the Global Note to reflect an increase in the aggregate
Principal Amount of the Notes represented by such Global Note, and the
Trustee shall cancel such definitive Note or Notes in accordance with the
standing instructions and procedures of the Depositary, the aggregate
Principal Amount of the Notes represented by such Global Note to be increased
accordingly; provided, however, that no definitive Note, or portion thereof,
in respect of which the Company or an Affiliate of the Company held any
beneficial interest shall be included in such Global Note until such
definitive Note is freely tradable in accordance with Rule 144(k) under the
Securities Act, provided further that the Trustee shall issue Notes in
definitive form upon any transfer of a beneficial interest in the Global Note
to the Company or any Affiliate of the Company.

       Upon any sale or transfer of a Note to an Institutional Accredited
Investor (other than pursuant to a registration statement that has been
declared effective under the Securities Act), such Institutional Accredited
Investor shall, prior to such sale or transfer, furnish to the Company and/or
the Trustee a signed letter containing representations and agreements
relating to restrictions on transfer substantially in the form set forth in
EXHIBIT B to this Indenture.  Upon any transfer of a beneficial interest in
the Global Note to an Institutional Accredited Investor, the Trustee shall
make an endorsement on the Global Note to reflect a decrease in the aggregate
Principal Amount of the Notes represented by such Global Note, and the
Company shall execute a definitive Note or Notes in exchange therefore, and
the Trustee, upon receipt of such definitive Note or Notes and the written
order of the Company, shall authenticate and deliver such, definitive Note or
Notes.

       Any Global Note may be endorsed with or have incorporated in the text
thereof such legends or recitals or changes not inconsistent with the
provisions of this Indenture as may be required by the Custodian, the
Depositary or by the National Association of Securities Dealers, Inc. in
order for the Notes to be tradeable on The Portal Market or as may be
required for the Notes to be tradeable on any other market developed for
trading of securities pursuant to Rule 144A or required to comply with any
applicable law or any regulation thereunder or with the rules and regulations
of any securities exchange or automated quotation system upon which the Notes
may be listed or traded or to conform with any usage with respect thereto, or
to indicate any special limitations or restrictions to which any particular
Notes are subject.

              (d)     Every Note that bears or is required under this Section
2.5(d) to bear the legend set forth in this Section 2.5(d) (together with any
Common Stock issued upon conversion of the Notes and required to bear the
legend set forth in Section 2.5(e), collectively, the "Restricted
Securities") shall be subject


                                      -11-
<PAGE>

to the restrictions on transfer set forth in this Section 2.5(d) (including
those set forth in the legend set forth below) unless such restrictions on
transfer shall be waived by written consent of the Company, and the holder of
each such Restricted Security, by such Noteholder's acceptance thereof,
agrees to be bound by all such restrictions on transfer.  As used in Sections
2.5(d) and 2.5(e), the term "transfer" encompasses any sale, pledge, loan,
transfer or other disposition whatsoever of any Restricted Security.

       Until the expiration of the holding period applicable to sales thereof
under Rule 144(k) under the Securities Act (or any successor provision), any
certificate evidencing such Note (and all securities issued in exchange
therefor or substitution thereof, other than Common Stock, if any, issued
upon conversion thereof, which shall bear the legend set forth in Section
2.5(e), if applicable) shall bear a legend in substantially the following
form, unless such Note has been sold pursuant to a registration statement
that has been declared effective under the Securities Act (and which
continues to be effective at the time of such transfer), or unless otherwise
agreed by the Company in writing, with written notice thereof to the Trustee:

              THE NOTE EVIDENCED HEREBY HAS NOT BEEN REGISTERED UNDER THE
       UNITED STATES SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES
       ACT"), OR ANY STATE SECURITIES LAWS, AND, ACCORDINGLY, MAY NOT BE
       OFFERED OR SOLD WITHIN THE UNITED STATES OR TO, OR FOR THE ACCOUNT
       OR BENEFIT OF, U.S. PERSONS EXCEPT AS SET FORTH IN THE FOLLOWING
       SENTENCE.  BY ITS ACQUISITION HEREOF, THE HOLDER (1) REPRESENTS
       THAT (A) IT IS A "QUALIFIED INSTITUTIONAL BUYER" (AS DEFINED IN
       RULE 144A UNDER THE SECURITIES ACT) OR (B) IT IS AN INSTITUTIONAL
       "ACCREDITED INVESTOR" (AS DEFINED IN RULE 501(A)(1), (2), (3) OR
       (7) UNDER THE SECURITIES ACT) ("INSTITUTIONAL ACCREDITED
       INVESTOR"); (2) AGREES THAT IT WILL NOT, PRIOR TO EXPIRATION OF
       THE HOLDING PERIOD APPLICABLE TO SALES OF THE NOTE EVIDENCED
       HEREBY UNDER RULE 144(K) UNDER THE SECURITIES ACT (OR ANY
       SUCCESSOR PROVISION), RESELL OR OTHERWISE TRANSFER THE NOTE
       EVIDENCED HEREBY OR THE COMMON STOCK ISSUABLE UPON CONVERSION OF
       SUCH NOTE EXCEPT (A) TO LATTICE SEMICONDUCTOR CORPORATION OR ANY
       SUBSIDIARY THEREOF, (B) INSIDE THE UNITED STATES TO A QUALIFIED
       INSTITUTIONAL BUYER IN COMPLIANCE WITH RULE 144A UNDER THE
       SECURITIES ACT, (C) INSIDE THE UNITED STATES TO AN INSTITUTIONAL
       ACCREDITED INVESTOR THAT, PRIOR TO SUCH TRANSFER, FURNISHES TO
       STATE STREET BANK AND TRUST COMPANY OF CALIFORNIA, N.A., AS
       TRUSTEE (OR A SUCCESSOR TRUSTEE, AS APPLICABLE), A SIGNED LETTER
       CONTAINING CERTAIN REPRESENTATIONS AND AGREEMENTS RELATING TO THE
       RESTRICTIONS ON TRANSFER OF THE NOTE EVIDENCED HEREBY (THE FORM OF
       WHICH LETTER CAN BE OBTAINED FROM SUCH TRUSTEE OR A SUCCESSOR
       TRUSTEE, AS APPLICABLE), (D) OUTSIDE THE UNITED STATES IN
       COMPLIANCE WITH RULE 904 UNDER THE SECURITIES ACT, (E) PURSUANT TO
       THE EXEMPTION FROM REGISTRATION PROVIDED BY RULE 144 UNDER THE
       SECURITIES ACT (IF AVAILABLE) OR (F) PURSUANT TO A REGISTRATION
       STATEMENT WHICH HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES
       ACT (AND WHICH CONTINUES TO BE EFFECTIVE AT THE TIME OF SUCH
       TRANSFER); (3) PRIOR TO SUCH TRANSFER (OTHER THAN A TRANSFER
       PURSUANT TO CLAUSE (2)(F) ABOVE), IT WILL FURNISH


                                      -12-
<PAGE>

       TO STATE STREET BANK AND TRUST COMPANY OF CALIFORNIA, N.A., AS
       TRUSTEE (OR A SUCCESSOR TRUSTEE, AS APPLICABLE), SUCH
       CERTIFICATIONS, LEGAL OPINIONS OR OTHER INFORMATION AS THE TRUSTEE
       MAY REASONABLY REQUIRE TO CONFIRM THAT SUCH TRANSFER IS BEING MADE
       PURSUANT TO AN EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO,
       THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT; AND (4) AGREES
       THAT IT WILL DELIVER TO EACH PERSON TO WHOM THE NOTE EVIDENCED
       HEREBY IS TRANSFERRED A NOTICE SUBSTANTIALLY TO THE EFFECT OF THIS
       LEGEND.  IN CONNECTION WITH ANY TRANSFER OF THE NOTE EVIDENCED
       HEREBY PRIOR TO THE EXPIRATION OF THE HOLDING PERIOD APPLICABLE TO
       SALES OF THE NOTE EVIDENCED HEREBY UNDER RULE 144(K) UNDER THE
       SECURITIES ACT (OR ANY SUCCESSOR PROVISION), THE HOLDER MUST CHECK
       THE APPROPRIATE BOX SET FORTH ON THE REVERSE HEREOF RELATING TO
       THE MANNER OF SUCH TRANSFER AND SUBMIT THIS CERTIFICATE TO STATE
       STREET BANK AND TRUST COMPANY OF CALIFORNIA, N.A., AS TRUSTEE (OR
       A SUCCESSOR TRUSTEE, AS APPLICABLE).  IF THE PROPOSED TRANSFEREE
       IS AN INSTITUTIONAL ACCREDITED INVESTOR OR IS A PURCHASER WHO IS
       NOT A U.S. PERSON, THE HOLDER MUST, PRIOR TO SUCH TRANSFER,
       FURNISH TO STATE STREET BANK AND TRUST COMPANY OF CALIFORNIA,
       N.A., AS TRUSTEE (OR A SUCCESSOR TRUSTEE, AS APPLICABLE), SUCH
       CERTIFICATIONS, LEGAL OPINIONS OR OTHER INFORMATION AS SUCH
       TRUSTEE MAY REASONABLY REQUIRE TO CONFIRM THAT SUCH TRANSFER IS
       BEING MADE PURSUANT TO AN EXEMPTION FROM, OR IN A TRANSACTION NOT
       SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT.
       THIS LEGEND WILL BE REMOVED UPON THE EARLIER OF THE TRANSFER OF
       THE NOTE EVIDENCED HEREBY PURSUANT TO CLAUSE (2)(F) ABOVE OR UPON
       ANY TRANSFER OF THE NOTE EVIDENCED HEREBY UNDER RULE 144(K) UNDER
       THE SECURITIES ACT (OR ANY SUCCESSOR PROVISION).  AS USED HEREIN,
       THE TERMS "UNITED STATES" AND "U.S. PERSON" HAVE THE MEANINGS
       GIVEN TO THEM BY REGULATION S UNDER THE SECURITIES ACT.

       Any Note (or security issued in exchange or substitution therefor) as
to which such restrictions on transfer shall have expired in accordance with
their terms or as to conditions for removal of the foregoing legend set forth
therein have been satisfied may, upon surrender of such Note for exchange to
the Note registrar in accordance with the provisions of this Section 2.5, be
exchanged for a new Note or Notes, of like tenor and aggregate principal
amount, which shall not bear the restrictive legend required by this Section
2.5(d).

       Notwithstanding any other provisions of this Indenture (other than the
provisions set forth in the second paragraph of Section 2.5(c) and in this
Section 2.5(d)), a Global Note may not be transferred as a whole or in part
except by the Depositary to a nominee of the Depositary or by a nominee of
the Depositary to the Depositary or another nominee of the Depositary or by
the Depositary or any such nominee to a successor Depositary or a nominee of
such successor Depositary.


                                      -13-
<PAGE>

       The Depositary shall be a clearing agency registered under the
Exchange Act.  The Company initially appoints The Depository Trust Company to
act as Depositary with respect to the Notes in global form.  Initially, the
Global Note shall be issued to the Depositary, registered in the name of Cede
& Co., as the nominee of the Depositary, and deposited with the Custodian for
Cede & Co.

       If at any time the Depositary for a Global Note notifies the Company
that it is unwilling or unable to continue as Depositary for such Note, the
Company may appoint a successor Depositary with respect to such Note.  If a
successor Depositary is not appointed by the Company within ninety (90) days
after the Company receives such notice, the Company will execute, and the
Trustee, upon receipt of an Officers' Certificate for the authentication and
delivery of Notes, will authenticate and deliver, Notes in certificated form,
in aggregate principal amount equal to the principal amount of such Global
Note, in exchange for such Global Note.

       If a Note in certificated form is issued in exchange for any portion
of a Global Note after the close of business at the office or agency where
such exchange occurs on any record date and before the opening of business at
such office or agency on the next succeeding interest payment date, interest
will not be payable on such interest payment date in respect of such
certificated Note, but will be payable on such interest payment date, subject
to the provisions of Section 2.3, only to the Person to whom interest in
respect of such portion of such Global Note is payable in accordance with the
provisions of this Indenture.

       Notes in certificated form issued in exchange for all or a part of a
Global Note pursuant to this Section 2.5 shall be registered in such names
and in such authorized denominations as the Depositary, pursuant to
instructions from its direct or indirect participants or otherwise, shall
instruct the Trustee.  Upon execution and authentication, the Trustee shall
deliver such Notes in certificated form to the Persons in whose names such
Notes in certificated form are so registered.

       At such time as all interests in a Global Note have been redeemed,
converted, canceled, exchanged for Notes in certificated form, or transferred
to a transferee who receives Notes in certificated form thereof, such Global
Note shall, upon receipt thereof, be canceled by the Trustee in accordance
with standing procedures and instructions existing between the Depositary and
the Custodian.  At any time prior to such cancellation, if any interest in a
Global Note is exchanged for Notes in certificated form, redeemed, converted,
repurchased or canceled, or transferred to a transferee who receives Notes in
certificated form therefor or any Note in certificated form is exchanged or
transferred for part of a Global Note, the principal amount of such Global
Note shall, in accordance with the standing procedures and instructions
existing between the Depositary and the Custodian, be appropriately reduced
or increased, as the case may be, and an endorsement shall be made on such
Global Note, by the Trustee or the Custodian, at the direction of the
Trustee, to reflect such reduction or increase.

              (e)     Until the expiration of the holding period applicable
to sales thereof under Rule 144(k) under the Securities Act (or any successor
provision), any stock certificate representing Common Stock issued upon
conversion of any Note shall bear a legend in substantially the following
form, unless such Common Stock has been sold pursuant to a registration
statement that has been declared effective under the Securities Act (and
which continues to be effective at the time of such transfer) or such Common
Stock has been issued upon conversion of Notes that have been transferred
pursuant to a registration statement that has been declared effective under
the Securities Act, or unless otherwise agreed by the Company in writing with
written notice thereof to the transfer agent:

              THE COMMON STOCK EVIDENCED HEREBY HAS NOT BEEN REGISTERED
       UNDER THE UNITED STATES SECURITIES ACT OF 1933, AS


                                      -14-
<PAGE>

       AMENDED (THE "SECURITIES ACT"), OR ANY STATE SECURITIES LAWS, AND,
       ACCORDINGLY, MAY NOT BE OFFERED OR SOLD WITHIN THE UNITED STATES
       OR TO, OR FOR THE ACCOUNT OR BENEFIT OF, U.S. PERSONS EXCEPT AS
       SET FORTH IN THE FOLLOWING SENTENCE.  THE HOLDER HEREOF AGREES
       THAT, UNTIL THE EXPIRATION OF THE HOLDING PERIOD APPLICABLE TO
       SALES OF THE COMMON STOCK EVIDENCED HEREBY UNDER RULE 144(K) UNDER
       THE SECURITIES ACT (OR ANY SUCCESSOR PROVISION), (1) IT WILL NOT
       RESELL OR OTHERWISE TRANSFER THE COMMON STOCK EVIDENCED HEREBY
       EXCEPT (A) TO LATTICE SEMICONDUCTOR CORPORATION OR ANY SUBSIDIARY
       THEREOF, (B) INSIDE THE UNITED STATES TO A "QUALIFIED INSTITUTIONAL
       BUYER" (AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT) IN
       COMPLIANCE WITH RULE 144A, (C) INSIDE THE UNITED STATES TO AN
       INSTITUTIONAL "ACCREDITED INVESTOR" (AS DEFINED IN RULE 501(A)(1),
       (2), (3) OR (7) UNDER THE SECURITIES ACT) THAT PRIOR TO SUCH
       TRANSFER, FURNISHES TO CHASEMELLON SHAREHOLDER SERVICES, L.L.C.,
       AS TRANSFER AGENT (OR A SUCCESSOR TRANSFER AGENT, AS APPLICABLE),
       A SIGNED LETTER CONTAINING CERTAIN REPRESENTATIONS AND AGREEMENTS
       RELATING TO THE RESTRICTIONS ON TRANSFER OF THE COMMON STOCK
       EVIDENCED HEREBY (THE FORM OF WHICH LETTER CAN BE OBTAINED FROM SUCH
       TRANSFER AGENT OR A SUCCESSOR TRANSFER AGENT, AS APPLICABLE),
       (D) OUTSIDE THE UNITED STATES IN COMPLIANCE WITH RULE 904 UNDER
       THE SECURITIES LAWS (E) PURSUANT TO THE EXEMPTION FROM
       REGISTRATION PROVIDED BY RULE 144 UNDER THE SECURITIES ACT (IF
       AVAILABLE), OR (F) PURSUANT TO A REGISTRATION STATEMENT WHICH HAS
       BEEN DECLARED EFFECTIVE UNDER THE SECURITIES ACT (AND WHICH
       CONTINUES TO BE EFFECTIVE AT THE TIME OF SUCH TRANSFER); (2) PRIOR
       TO SUCH TRANSFER (OTHER THAN A TRANSFER PURSUANT TO CLAUSE (1)(F)
       ABOVE), IT WILL FURNISH TO CHASEMELLON SHAREHOLDER SERVICES,
       L.L.C., AS TRANSFER AGENT (OR A SUCCESSOR TRANSFER AGENT, AS
       APPLICABLE), SUCH CERTIFICATIONS, LEGAL OPINIONS OR OTHER
       INFORMATION AS SUCH TRANSFER AGENT MAY REASONABLY REQUIRE TO
       CONFIRM THAT SUCH TRANSFER IS BEING MADE PURSUANT TO AN EXEMPTION
       FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION
       REQUIREMENTS OF THE SECURITIES ACT; AND (3) IT WILL DELIVER TO
       EACH PERSON TO WHOM THE COMMON STOCK EVIDENCED HEREBY IS
       TRANSFERRED (OTHER THAN A TRANSFER PURSUANT TO CLAUSE 1(F) ABOVE)
       A NOTICE SUBSTANTIALLY TO THE EFFECT OF THIS LEGEND.  IF THE
       PROPOSED TRANSFEREE IS AN INSTITUTIONAL ACCREDITED INVESTOR OR IS
       A PURCHASER WHO IS NOT A U.S. PERSON, THE HOLDER MUST, PRIOR TO
       SUCH TRANSFER, FURNISH TO CHASEMELLON SHAREHOLDER SERVICES, L.L.C.
       (OR A SUCCESSOR TRANSFER AGENT, AS APPLICABLE), SUCH
       CERTIFICATIONS, LEGAL OPINIONS OR OTHER INFORMATION AS IT MAY
       REASONABLY REQUIRE TO CONFIRM THAT SUCH TRANSFER IS BEING MADE
       PURSUANT TO AN EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO,
       THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT.  THIS LEGEND
       WILL BE REMOVED UPON THE EARLIER OF THE TRANSFER


                                      -15-
<PAGE>

       OF THE COMMON STOCK EVIDENCED HEREBY PURSUANT TO CLAUSE (1)(E)
       ABOVE OR UPON ANY TRANSFER OF THE COMMON STOCK EVIDENCED HEREBY
       AFTER THE EXPIRATION OF THE HOLDING PERIOD APPLICABLE TO SALES OF
       THE SECURITY EVIDENCED HEREBY UNDER RULE 144(K) UNDER THE SECURITIES
       ACT (OR ANY SUCCESSOR PROVISION).  AS USED HEREIN, THE TERMS "UNITED
       STATES" AND "U.S. PERSON" HAVE THE MEANINGS GIVEN TO THEM BY
       REGULATION S UNDER THE SECURITIES ACT.

       Any such Common Stock as to which such restrictions on transfer shall
have expired in accordance with their terms or as to which the conditions for
removal of the foregoing legend set forth therein have been satisfied may, upon
surrender of the certificates representing such shares of Common Stock for
exchange in accordance with the procedures of the transfer agent for the Common
Stock, be exchanged for a new certificate or certificates for a like number of
shares of Common Stock, which shall not bear the restrictive legend required by
this Section 2.5(e).

              (f)     Any Note or Common Stock issued upon the conversion or
exchange of a Note that, prior to the expiration of the holding period
applicable to sales thereof under Rule 144(k) under the Securities Act (or any
successor provision), is purchased or owned by the Company or any Affiliate
thereof may not be resold by the Company or such Affiliate unless registered
under the Securities Act or  resold pursuant to an exemption from the
registration requirements of the Securities Act in a transaction which results
in such Notes or Common Stock, as the case may be, no longer being "restricted
securities" (as defined under Rule 144).

       Section 2.6.   MUTILATED, DESTROYED, LOST OR STOLEN NOTES.  In case
any Note shall become mutilated or be destroyed, lost or stolen, the Company
in its discretion may execute, and upon its written request the Trustee or an
authenticating agent appointed by the Trustee shall authenticate and make
available for delivery, a new Note, bearing a number not contemporaneously
outstanding, in exchange and substitution for the mutilated Note, or in lieu
of and in substitution for the Note so destroyed, lost or stolen.  In every
case the applicant for a substituted Note shall furnish to the Company, to
the Trustee and, if applicable, to such authenticating agent such security or
indemnity as may be required by them to save each of them harmless for any
loss, liability, cost or expense caused by or connected with such
substitution, and, in every case of destruction, loss or theft, the applicant
shall also furnish to the Company, to the Trustee and, if applicable, to such
authenticating agent evidence to their satisfaction of the destruction, loss
or theft of such Note and of the ownership thereof.

       Following receipt by the Trustee or such authenticating agent, as the
case may be, of satisfactory security or indemnity and evidence, as described
in the preceding paragraph, the Trustee or such authenticating agent may
authenticate any such substituted Note and make available for delivery such
Note.  Upon the issuance of any substituted Note, the Company may require the
payment by the holder of a sum sufficient to cover any tax, assessment or
other governmental charge that may be imposed in relation thereto and any
other expenses connected therewith.  In case any Note which has matured or is
about to mature or has been called for redemption or has been tendered for
redemption (and not withdrawn) or is to be converted into Common Stock shall
become mutilated or be destroyed, lost or stolen, the Company may, instead of
issuing a substitute Note, pay or authorize the payment of or convert or
authorize the conversion of the same (without surrender thereof except in the
case of a mutilated Note), as the case may be, if the applicant for such
payment or conversion shall furnish to the Company, to the Trustee and, if
applicable, to such authenticating agent such security or indemnity as may be
required by them to save each of them harmless for any loss, liability,


                                     -16-
<PAGE>


cost or expense caused by or connected with such substitution, and, in every
case of destruction, loss or theft, the applicant shall also furnish to the
Company, the Trustee and, if applicable, any paying agent or conversion agent
evidence to their satisfaction of the destruction, loss or theft of such Note
and of the ownership thereof.

       Every substitute Note issued pursuant to the provisions of this
Section 2.6 by virtue of the fact that any Note is destroyed, lost or stolen
shall constitute an additional contractual obligation of the Company, whether
or not the destroyed, lost or stolen Note shall be found at any time, and
shall be entitled to all the benefits of (but shall be subject to all the
limitations set forth in) this Indenture equally and proportionately with any
and all other Notes duly issued hereunder.  To the extent permitted by law,
all Notes shall be held and owned upon the express condition that the
foregoing provisions are exclusive with respect to the replacement or payment
or conversion of mutilated, destroyed, lost or stolen Notes and shall
preclude any and all other rights or remedies notwithstanding any law or
statute existing or hereafter enacted to the contrary with respect to the
replacement or payment or conversion of negotiable instruments or other
securities without their surrender.

       Section 2.7.   TEMPORARY NOTES.  Pending the preparation of Notes in
certificated form, the Company may execute and the Trustee or an
authenticating agent appointed by the Trustee shall, upon the written request
of the Company, authenticate and deliver temporary Notes (printed or
lithographed).  Temporary Notes shall be issuable in any authorized
denomination, and substantially in the form of the Notes in certificated
form, but with such omissions, insertions and variations as may be
appropriate for temporary Notes, all as may be determined by the Company.
Every such temporary Note shall be executed by the Company and authenticated
by the Trustee or such authenticating agent upon the same conditions and in
substantially the same manner, and with the same effect, as the Notes in
certificated form.  Without unreasonable delay the Company will execute and
deliver to the Trustee or such authenticating agent Notes in certificated
form (other than in the case of Notes in global form) and thereupon any or
all temporary Notes (other than any such Global Note) may be surrendered in
exchange therefor, at each office or agency maintained by the Company
pursuant to Section 5.2 and the Trustee or such authenticating agent shall
authenticate and make available for delivery in exchange for such temporary
Notes an equal aggregate principal amount of Notes in certificated form.
Such exchange shall be made by the Company at its own expense and without any
charge therefor.  Until so exchanged, the temporary Notes shall in all
respects be entitled to the same benefits and subject to the same limitations
under this Indenture as Notes in certificated form authenticated and
delivered hereunder.

       Section 2.8.   CANCELLATION OF NOTES PAID, ETC.  All Notes surrendered
for the purpose of payment, redemption, conversion, exchange or registration
of transfer shall, if surrendered to the Company or any paying agent or any
Note registrar or any conversion agent, be surrendered to the Trustee and
promptly canceled by it, or, if surrendered to the Trustee, shall be promptly
canceled by it, and no Notes shall be issued in lieu thereof except as
expressly permitted by any of the provisions of this Indenture.  The Trustee
shall dispose of such canceled Notes in accordance with its customary
procedures.  If the Company shall acquire any of the Notes, such acquisition
shall not operate as a redemption or satisfaction of the indebtedness
represented by such Notes unless and until the same are delivered to the
Trustee for cancellation.

       Section 2.9.   CUSIP NUMBERS.  The Company in issuing the Notes may
use "CUSIP" numbers (if then generally in use), and, if so, the Trustee shall
use "CUSIP" numbers in notices of redemption as a convenience to Noteholders;
provided, however, that any such notice may state that no representation is
made as to the correctness of such numbers either as printed on the Notes or
as contained in any notice of a redemption and that reliance may be placed
only on the other identification numbers printed on the Notes, and


                                     -17-


<PAGE>


any such redemption shall not be affected by any defect in or omission of
such numbers.  The Company will promptly notify the Trustee of any change in
the "CUSIP" numbers.

                                   ARTICLE THREE

                                REDEMPTION OF NOTES

       Section 3.1.   (a)   INITIAL PROHIBITION ON REDEMPTION.  Except as
otherwise provided in Section 3.5, the Notes may not be redeemed by the
Company, in whole or in part, at any time prior to November 6, 2002.

              (b)     OPTIONAL REDEMPTION BY THE COMPANY.  At any time on or
after November 6, 2002, and prior to maturity, the Notes may be redeemed at
the option of the Company, in whole or in part, upon notice as set forth in
Section 3.2, at the following redemption prices (expressed as percentages of
the principal amount), together in each case with accrued and unpaid
interest, if any (including Liquidated Damages, if any) to, but excluding,
the date fixed for redemption:


<TABLE>
<CAPTION>
Period                                                                Redemption Price
- ------                                                                ----------------
<S>                                                                   <C>
Beginning on November 6, 2002 and ending on October 31, 2003..........        102.71%
Beginning on November 1, 2003 and ending on October 31, 2004..........         102.04
Beginning on November 1, 2004 and ending on October 31, 2005..........         101.36
Beginning on November 1, 2005 and ending on October 31, 2006..........         100.68
</TABLE>

and 100% on November 1, 2006; provided, however, that if the date fixed for
redemption is on a May 1 or November 1, then the interest payable on such
date shall be paid to the holder of record on the preceding April 15 or
October 15, respectively.

       Section 3.2.   NOTICE OF REDEMPTIONS; SELECTION OF NOTES.  In case the
Company shall desire to exercise the right to redeem all or, as the case may
be, any part of the Notes pursuant to Section 3.1, it shall fix a date for
redemption and it or, at its written request received by the Trustee not
fewer than forty-five (45) days prior (or such shorter period of time as may
be acceptable to the Trustee) to the date fixed for redemption, the Trustee
in the name of and at the expense of the Company, shall mail or cause to be
mailed a notice of such redemption not fewer than thirty (30) nor more than
sixty (60) days prior to the date fixed for redemption to the holders of
Notes so to be redeemed as a whole or in part at their last addresses as the
same appear on the Note register; provided, however, that if the Company
shall give such notice, it shall also give written notice, and written notice
of the Notes to be redeemed, to the Trustee.  Such mailing shall be by first
class mail.  The notice if mailed in the manner herein provided shall be
conclusively presumed to have been duly given, whether or not the holder
receives such notice.  In any case, failure to give such notice by mail or
any defect in the notice to the holder of any Note designated for redemption
as a whole or in part shall not affect the validity of the proceedings for
the redemption of any other Note.  Concurrently with the mailing of any such
notice of redemption, the Company shall issue a press release announcing such
redemption, the form and content of which press release shall be determined
by the Company in its sole discretion.  The failure to issue any such press
release or any defect therein shall not affect the validity of the redemption
notice or any of the proceedings for the redemption of any Note called for
redemption.

       Each such notice of redemption shall specify the aggregate principal
amount of Notes to be redeemed, the CUSIP number or numbers of the Notes
being redeemed, the date fixed for redemption (which shall be a Business
Day), the redemption price at which Notes are to be redeemed, the place or
places of payment, that


                                     -18-


<PAGE>


payment will be made upon presentation and surrender of such Notes, that
interest accrued to the date fixed for redemption will be paid as specified
in said notice, and that on and after said date interest thereon or on the
portion thereof to be redeemed will cease to accrue.  Such notice shall also
state the current Conversion Price and the date on which the right to convert
such Notes or portions thereof into Common Stock will expire.  If fewer than
all the Notes are to be redeemed, the notice of redemption shall identify the
Notes to be redeemed (including CUSIP numbers, if any).  In case any Note is
to be redeemed in part only, the notice of redemption shall state the portion
of the principal amount thereof to be redeemed and shall state that, on and
after the date fixed for redemption, upon surrender of such Note, a new Note
or Notes in principal amount equal to the unredeemed portion thereof will be
issued.

       On or prior to the redemption date specified in the notice of
redemption given as provided in this Section 3.2, the Company will deposit
with the Trustee or with one or more paying agents (or, if the Company is
acting as its own paying agent, set aside, segregate and hold in trust as
provided in Section 5.4) an amount of money in immediately available funds
sufficient to redeem on the redemption date all the Notes (or portions
thereof) so called for redemption (other than those theretofore surrendered
for conversion into Common Stock) at the appropriate redemption price,
together with accrued interest to, but excluding, the date fixed for
redemption; provided, however, that if such payment is made on the redemption
date it must be received by the Trustee or paying agent, as the case may be,
by 10:00 a.m. New York City time on such date. The Company shall be entitled
to retain any interest, yield or gain on amounts deposited with the Trustee
or any paying agent pursuant to this Section 3.2 in excess of amounts
required hereunder to pay the redemption price together with accrued interest
to, but excluding, the date fixed for redemption.  If any Note called for
redemption is converted pursuant hereto prior to such redemption, any money
deposited with the Trustee or any paying agent or so segregated and held in
trust for the redemption of such Note shall be paid to the Company upon its
written request, or, if then held by the Company, shall be discharged from
such trust.  Whenever any Notes are to be redeemed, the Company will give the
Trustee written notice in the form of an Officers' Certificate not fewer than
forty-five (45) days (or such shorter period of time as may be acceptable to
the Trustee) prior to the redemption date as to the aggregate principal
amount of Notes to be redeemed.

       If less than all of the outstanding Notes are to be redeemed, the
Trustee shall select the Notes or portions thereof of the Global Note or the
Notes in certificated form to be redeemed (in principal amounts of $1,000 or
integral multiples thereof) by lot, on a pro rata basis or by another method
the Trustee deems fair and appropriate. If any Note selected for partial
redemption is submitted for conversion in part after such selection, the
portion of such Note submitted for conversion shall be deemed (so far as may
be) to be the portion to be selected for redemption.  The Notes (or portions
thereof) so selected shall be deemed duly selected for redemption for all
purposes hereof, notwithstanding that any such Note is submitted for
conversion in part before the mailing of the notice of redemption.

       Upon any redemption of less than all of the outstanding Notes, the
Company and the Trustee may (but need not), solely for purposes of
determining the pro rata allocation among such Notes as are unconverted and
outstanding at the time of redemption, treat as outstanding any Notes
surrendered for conversion during the period of fifteen (15) days next
preceding the mailing of a notice of redemption and may (but need not) treat
as outstanding any Note authenticated and delivered during such period in
exchange for the unconverted portion of any Note converted in part during
such period.

       Section 3.3.   PAYMENT OF NOTES CALLED FOR REDEMPTION.  If notice of
redemption has been given as above provided, the Notes or portion of Notes
with respect to which such notice has been given shall, unless converted into
Common Stock pursuant to the terms hereof, become due and payable on the date
fixed for redemption and at the place or places stated in such notice at the
applicable redemption price, together with


                                     -19


<PAGE>


interest accrued to (but excluding) the date fixed for redemption, and on and
after said date (unless the Company shall default in the payment of such
Notes at the redemption price, together with interest accrued to said date)
interest on the Notes or portion of Notes so called for redemption shall
cease to accrue and, after the close of business on the Business Day next
preceding the date fixed for redemption, such Notes shall cease to be
convertible into Common Stock and, except as provided in Sections 8.5 and
13.4, to be entitled to any benefit or security under this Indenture, and the
holders thereof shall have no right in respect of such Notes except the right
to receive the redemption price thereof and unpaid interest to (but
excluding) the date fixed for redemption.  On presentation and surrender of
such Notes at a place of payment in said notice specified, the said Notes or
the specified portions thereof shall be paid and redeemed by the Company at
the applicable redemption price, together with interest accrued thereon to
(but excluding) the date fixed for redemption; provided, however, that if the
applicable redemption date is an interest payment date, the semi-annual
payment of interest becoming due on such date shall be payable to the holders
of such Notes registered as such on the relevant record date instead of the
holders surrendering such Notes for redemption on such date.

       Upon presentation of any Note redeemed in part only, the Company shall
execute and the Trustee shall authenticate and make available for delivery to
the holder thereof, at the expense of the Company, a new Note or Notes, of
authorized denominations, in principal amount equal to the unredeemed portion
of the Notes so presented.

       Notwithstanding the foregoing, the Trustee shall not redeem any Notes
or mail any notice of redemption during the continuance of a default in
payment of interest or premium, if any, on the Notes.  If any Note called for
redemption shall not be so paid upon surrender thereof for redemption, the
principal and premium, if any, shall, until paid or duly provided for, bear
interest from the date fixed for redemption at the rate borne by the Note and
such Note shall remain convertible into Common Stock until the principal and
premium, if any, and interest shall have been paid or duly provided for.

       Section 3.4.   CONVERSION ARRANGEMENT ON CALL FOR REDEMPTION.  In
connection with any redemption of Notes, the Company may arrange for the
purchase and conversion of any Notes by an agreement with one or more
investment bankers or other purchasers to purchase such Notes by paying to
the Trustee in trust for the Noteholders, on or before the date fixed for
redemption, an amount not less than the applicable redemption price, together
with interest accrued to (but excluding) the date fixed for redemption, of
such Notes.  Notwithstanding anything to the contrary contained in this
Article Three, the obligation of the Company to pay the redemption price of
such Notes, together with interest accrued to (but excluding) the date fixed
for redemption, shall be deemed to be satisfied and discharged to the extent
such amount is so paid by such purchasers.  If such an agreement is entered
into, a copy of which will be filed with the Trustee prior to the date fixed
for redemption, any Notes not duly surrendered for conversion by the holders
thereof may, at the option of the Company, be deemed, to the fullest extent
permitted by law, acquired by such purchasers from such holders and
(notwithstanding anything to the contrary contained in Article Fifteen)
surrendered by such purchasers for conversion, all as of immediately prior to
the close of business on the date fixed for redemption (and the right to
convert any such Notes shall be extended through such time), subject to
payment of the above amount as aforesaid.  At the direction of the Company,
the Trustee shall hold and dispose of any such amount paid to it in the same
manner as it would monies deposited with it by the Company for the redemption
of Notes.  Without the Trustee's prior written consent, no arrangement
between the Company and such purchasers for the purchase and conversion of
any Notes shall increase or otherwise affect any of the powers, duties,
responsibilities or obligations of the Trustee as set forth in this Indenture.

       Section 3.5.   REDEMPTION AT OPTION OF HOLDERS.


                                     -20-


<PAGE>


              (a)     If there shall occur a Fundamental Change at any time
prior to maturity of the Notes, then each Noteholder shall have the right, at
such holder's option, to require the Company to redeem all of such holder's
Notes, or any portion thereof that is an integral multiple of $1,000
principal amount, on the date (the "Repurchase Date") that is thirty (30)
days after the date of the Company Notice (as defined in Section 3.5(b)
below) of such Fundamental Change (or, if such 30th day is not a Business
Day, the next succeeding Business Day) at a redemption price equal to 100% of
the principal amount thereof, together with accrued interest to (but
excluding) the Repurchase Date; provided, however, that, if such Repurchase
Date is a May 1 or November 1, then the interest payable on such date shall
be paid to the holders of record of the Notes on the next preceding April 15
or October 15, respectively.

       Upon presentation of any Note redeemed in part only, the Company shall
execute and, upon the Company's written direction to the Trustee, the Trustee
shall authenticate and deliver to the holder thereof, at the expense of the
Company, a new Note or Notes, of authorized denominations, in principal
amount equal to the unredeemed portion of the Notes so presented.

              (b)     On or before the tenth day after the occurrence of a
Fundamental Change, the Company or at its written request (which must be
received by the Trustee at least five (5) Business Days prior to the date the
Trustee is requested to give notice as described below, unless the Trustee
shall agree in writing to a shorter period), the Trustee, in the name of and
at the expense of the Company, shall mail or cause to be mailed to all
holders of record on the date of the Fundamental Change a notice (the
"Company Notice") of the occurrence of such Fundamental Change and of the
redemption right at the option of the holders arising as a result thereof.
Such notice shall be mailed in the manner and with the effect set forth in
the first paragraph of Section 3.2 (without regard for the time limits set
forth therein).  If the Company shall give such notice, the Company shall
also deliver a copy of the Company Notice to the Trustee at such time as it
is mailed to Noteholders. Concurrently with the mailing of any Company
Notice, the Company shall issue a press release announcing such Fundamental
Change referred to in the Company Notice, the form and content of which press
release shall be determined by the Company in its sole discretion.  The
failure to issue any such press release or any defect therein shall not
affect the validity of the Company Notice or any proceedings for the
redemption of any Note which any Noteholder may elect to have the Company
redeem as provided in this Section 3.5.

       Each Company Notice shall specify the circumstances constituting the
Fundamental Change, the Repurchase Date, the price at which the Company shall
be obligated to redeem Notes, that the holder must exercise the redemption
right on or prior to the close of business on the Repurchase Date (the
"Fundamental Change Expiration Time"), that the holder shall have the right
to withdraw any Notes surrendered prior to the Fundamental Change Expiration
Time, a description of the procedure which a Noteholder must follow to
exercise such redemption right and to withdraw any surrendered Notes, the
place or places where the holder is to surrender such holder's Notes, the
amount of interest accrued on each Note to the Repurchase Date and the
"CUSIP" number or numbers of the Notes (if then generally in use).

       No failure of the Company to give the foregoing notices and no defect
therein shall limit the Noteholders' redemption rights or affect the validity
of the proceedings for the redemption of the Notes pursuant to this
Section 3.5.

              (c)     For a Note to be so redeemed at the option of the
holder, the Company must receive at the office or agency of the Company
maintained for that purpose or, at the option of such holder, the Corporate
Trust Office, such Note with the form entitled "Option to Elect Repayment
Upon A Fundamental Change" on the reverse thereof duly completed, together
with such Notes duly endorsed for transfer, on or


                                     -21-


<PAGE>


before the Fundamental Change Expiration Time.  All questions as to the
validity, eligibility (including time of receipt) and acceptance of any Note
for repayment shall be determined by the Company, whose determination shall
be final and binding absent manifest error.

              (d)     On or prior to the Repurchase Date, the Company will
deposit with the Trustee or with one or more paying agents (or, if the
Company is acting as its own paying agent, set aside, segregate and hold in
trust as provided in Section 5.4) an amount of money sufficient to redeem on
the Repurchase Date all the Notes to be redeemed on such date at the
appropriate redemption price, together with accrued interest to (but
excluding) the Repurchase Date; provided, however, that if such payment is
made on the Repurchase Date it must be received by the Trustee or paying
agent, as the case may be, by 10:00 a.m. New York City time, on such date.
Payment for Notes surrendered for redemption (and not withdrawn) prior to the
Fundamental Change Expiration Time will be made promptly (but in no event
more than five (5) Business Days) following the Repurchase Date by mailing
checks for the amount payable to the holders of such Notes entitled thereto
as they shall appear on the registry books of the Company.

              (e)     In the case of a reclassification, change,
consolidation, merger, combination, sale or conveyance to which Section 15.6
applies, in which the Common Stock of the Company is changed or exchanged as
a result into the right to receive stock, securities or other property or
assets (including cash), which includes shares of Common Stock of the Company
or shares of common stock of another Person that are, or upon issuance will
be, traded on a United States national securities exchange or approved for
trading on an established automated over-the-counter trading market in the
United States and such shares constitute at the time such change or exchange
becomes effective in excess of 50% of the aggregate fair market value of such
stock, securities or other property or assets (including cash) (as determined
by the Company, which determination shall be conclusive and binding), then
the Person formed by such consolidation or resulting from such merger or
which acquires such assets, as the case may be, shall execute and deliver to
the Trustee a supplemental indenture (accompanied by an Opinion of Counsel
that such supplemental indenture complies with the Trust Indenture Act as in
force at the date of execution of such supplemental indenture) modifying the
provisions of this Indenture relating to the right of holders of the Notes to
cause the Company to repurchase the Notes following a Fundamental Change,
including without limitation the applicable provisions of this Section 3.5
and the definitions of Common Stock and Fundamental Change, as appropriate,
as determined in good faith by the Company (which determination shall be
conclusive and binding), to make such provisions apply to such other Person
if different from the Company and the common stock issued by such Person (in
lieu of the Company and the Common Stock of the Company).

              (f)     The Company will comply with the provisions of Rule
13e-4 and any other tender offer rules under the Exchange Act to the extent
then applicable in connection with the redemption rights of the holders of
Notes in the event of a Fundamental Change.

                                    ARTICLE FOUR

                               SUBORDINATION OF NOTES

       Section 4.1.   AGREEMENT OF SUBORDINATION.  The Company covenants and
agrees, and each holder of Notes issued hereunder by its acceptance thereof
likewise covenants and agrees, that all Notes shall be issued subject to the
provisions of this Article Four, and each Person holding any Note, whether
upon original issue or upon registration of transfer, assignment or exchange
thereof, accepts and agrees to be bound by such provisions.


                                     -22-


<PAGE>


       The payment of the principal of, premium, if any, and interest
(including Liquidated Damages, if any) on all Notes (including, but not
limited to, the redemption price with respect to the Notes called for
redemption in accordance with Section 3.2 or submitted for redemption in
accordance with Section 3.5, as the case may be, as provided in this
Indenture) issued hereunder shall, to the extent and in the manner
hereinafter set forth, be subordinated and subject in right of payment to the
prior payment in full of all Senior Indebtedness, whether outstanding at the
date of this Indenture or thereafter incurred.

       No provision of this Article Four shall prevent the occurrence of any
default or Event of Default hereunder.

       Section 4.2.   PAYMENTS TO NOTEHOLDERS.  No payment shall be made with
respect to the principal of, premium, if any, or interest (including
Liquidated Damages, if any) on the Notes (including, but not limited to, the
redemption price with respect to the Notes to be called for redemption in
accordance with Section 3.2 or submitted for redemption in accordance with
Section 3.5, as the case may be, as provided in this Indenture), except
payments and distributions made by the Trustee as permitted by the first or
second paragraph of Section 4.5, if:

               (i)    a default in the payment of principal, premium, if any,
       interest, rent or other obligations in respect of Designated Senior
       Indebtedness occurs and is continuing (or, in the case of Designated
       Senior Indebtedness for which there is a period of grace, in the event
       of such a default that continues beyond the period of grace, if any,
       specified in the instrument or lease evidencing such Designated Senior
       Indebtedness) (a "Payment Default"), unless and until such Payment
       Default shall have been cured or waived or shall have ceased to exist;
       or

               (ii)   a default, other than a Payment Default, on any
       Designated Senior Indebtedness occurs and is continuing that then
       permits holders of such Designated Senior Indebtedness to accelerate
       its maturity (or in the case of any lease, a default occurs and is
       continuing that permits the lessor to either terminate the lease or
       require the Company to make an irrevocable offer to terminate the lease
       following an event of default thereunder) and the Trustee receives a
       notice of the default (a "Payment Blockage Notice") from a holder of
       Designated Senior Indebtedness, a Representative of Designated Senior
       Indebtedness or the Company (a "Non-Payment Default").

       If the Trustee receives any Payment Blockage Notice pursuant to clause
(ii) above, no subsequent Payment Blockage Notice shall be effective for
purposes of this Section 4.2 unless and until at least 365 days shall have
elapsed since the initial effectiveness of the immediately prior Payment
Blockage Notice.  No Non-Payment Default that existed or was continuing on
the date of delivery of any Payment Blockage Notice to the Trustee shall be,
or be made, the basis for a subsequent Payment Blockage Notice.

       The Company may and shall resume payments on and distributions in
respect of the Notes upon the earlier of:

              (1)     the date upon which any such Payment Default is cured or
       waived or ceases to exist, or

              (2)     in the case of a Non-Payment Default, the earlier of
       (a) the date upon which such default is cured or waived or ceases to
       exist or (b) 179 days after the applicable Payment Blockage Notice is
       received by the Trustee if the maturity of such Designated Senior
       Indebtedness has not been accelerated (or in the case of any lease, 179
       days after notice is received if the Company has not


                                     -23-


<PAGE>


       received notice that the lessor under such lease has exercised its right
       to terminate the lease or require the Company to make an irrevocable
       offer to terminate the lease following an event of default thereunder),

       unless this Article Four otherwise prohibits the payment or
distribution at the time of such payment or distribution.

       Upon any payment by the Company, or distribution of assets of the
Company of any kind or character, whether in cash, property or securities, to
creditors upon any dissolution or winding up or liquidation or reorganization
of the Company, whether voluntary or involuntary or in bankruptcy,
insolvency, receivership or other proceedings, all amounts due or to become
due upon all Senior Indebtedness shall first be paid in full in cash or other
payment satisfactory to the holders of such Senior Indebtedness (and
satisfactory to the holders of Senior Indebtedness in the case such Senior
Indebtedness includes Designated Senior Indebtedness), or payment thereof in
accordance with its terms provided for in cash or other payment satisfactory
to the holders of such Senior Indebtedness (and satisfactory to the holders
of Senior Indebtedness in the case such Senior Indebtedness includes
Designated Senior Indebtedness) before any payment is made on account of the
principal of, premium, if any, or interest (including Liquidated Damages, if
any) on the Notes (except payments made pursuant to Article Thirteen from
monies deposited with the Trustee pursuant thereto prior to commencement of
proceedings for such dissolution, winding up, liquidation or reorganization),
and upon any such dissolution or winding up or liquidation or reorganization
of the Company or bankruptcy, insolvency, receivership or other similar
proceeding, any payment by the Company, or distribution of assets of the
Company of any kind or character, whether in cash, property or securities, to
which the holders of the Notes or the Trustee would be entitled, except for
the provisions of this Article Four, shall (except as aforesaid) be paid by
the Company or by any receiver, trustee in bankruptcy, liquidating trustee,
agent or other Person making such payment or distribution, or by the holders
of the Notes or by the Trustee under this Indenture if received by them or
it, directly to the holders of Senior Indebtedness (pro rata to such holders
on the basis of the resective amounts of Senior Indebtedness held by such
holders, or as otherwise required by law or a court order) or their
Representative or Representatives, as their respective interests may appear,
to the extent necessary to pay all Senior Indebtedness in full, in cash or
other payment satisfactory to the holders of such Senior Indebtedness (and
satisfactory to the holders of Senior Indebtedness in the case such Senior
Indebtedness includes Designated Senior Indebtedness), after giving effect to
any concurrent payment or distribution to or for the holders of Senior
Indebtedness, before any payment or distribution is made to the holders of
the Notes or to the Trustee.

       For purposes of this Article Four, the words, "cash, property or
securities" shall not be deemed to include shares of stock of the Company as
reorganized or readjusted, or securities of the Company or any other
corporation provided for by a plan of reorganization or readjustment, the
payment of which is subordinated at least to the extent provided in this
Article Four with respect to the Notes to the payment of all Senior
Indebtedness which may at the time be outstanding PROVIDED THAT (i) the
Senior Indebtedness is assumed by the new corporation, if any, resulting from
any reorganization or readjustment, and (ii) the rights of the holders of
Senior Indebtedness (other than leases which are not assumed by the Company
or the new corporation, as the case may be) are not, without the consent of
such holders, altered by such reorganization as the case may be) are not,
without the consent of such holders, altered by such reorganization or
readjustment.  The consolidation of the Company with, or the merger of the
Company into, another corporation or the liquidation or dissolution of the
Company following the conveyance or transfer of its property as an entirety,
or substantially as an entirety, to another Person upon the terms and
conditions provided for in Article Twelve shall not be deemed a dissolution,
winding-up, liquidation or reorganization


                                     -24-


<PAGE>


for the purposes of this Section 4.2 if such other Person shall, as a part of
such consolidation, merger, conveyance or transfer, comply with the
conditions stated in Article Twelve.

       In the event of the acceleration of the Notes because of an Event of
Default, no payment or distribution shall be made to the Trustee or any
holder of Notes in respect of the principal of, premium, if any, or interest
(including Liquidated Damages, if any) on the Notes (including, but not
limited to, the redemption price with respect to the Notes called for
redemption in accordance with Section 3.2 or submitted for redemption in
accordance with Section 3.5, as the case may be, as provided in this
Indenture), except payments and distributions made by the Trustee as
permitted by the first or second paragraph of Section 4.5, until all Senior
Indebtedness has been paid in full in cash or other payment satisfactory to
the holders of Senior Indebtedness (and satisfactory to the holders of
Designated Senior Indebtedness in the case such Senior Indebtedness includes
Designated Senior Indebtedness) or such acceleration is rescinded in
accordance with the terms of this Indenture.  If payment of the Notes is
accelerated because of an Event of Default, the Company or the Trustee shall
promptly notify holders of Senior Indebtedness (including the ABN AMRO Bank,
N.V., as Agent, under the Credit Agreement) of the acceleration.

       In the event that, notwithstanding the foregoing provisions, any
payment or distribution of assets of the Company of any kind or character,
whether in cash, property or securities (including, without limitation, by
way of setoff or otherwise), prohibited by the foregoing provisions in this
Section 4.2, shall be received by the Trustee or the holders of the Notes
before all Senior Indebtedness is paid in full in cash or other payment
satisfactory to the holders of such Senior Indebtedness (and satisfactory to
the holders of Senior Indebtedness in the case such Senior Indebtedness
includes Designated Senior Indebtedness), or provision is made for such
payment thereof in accordance with its terms in cash or other payment
satisfactory to the holders of such Senior Indebtedness (and satisfactory to
the holders of Senior Indebtedness in the case such Senior Indebtedness
includes Designated Senior Indebtedness), such payment or distribution shall
be held in trust for the benefit of and shall be paid over or delivered to
the holders of Senior Indebtedness or their Representative or
Representatives, as their respective interests may appear, as calculated by
the Company, for application to the payment of any Senior Indebtedness
remaining unpaid to the extent necessary to pay all Senior Indebtedness in
full in cash or other payment satisfactory to the holders of such Senior
Indebtedness (and satisfactory to the holders of Senior Indebtedness in the
case such Senior Indebtedness includes Designated Senior Indebtedness), after
giving effect to any concurrent payment or distribution to or for the holders
of such Senior Indebtedness.

       Nothing in this Section 4.2 shall apply to claims of, or payments to,
the Trustee under or pursuant to Section 8.6.  This Section 4.2 shall be
subject to the further provisions of Section 4.5.

       Section 4.3.   SUBROGATION OF NOTES.  Subject to the payment in full
of all Senior Indebtedness, the rights of the holders of the Notes shall be
subrogated to the extent of the payments or distributions made to the holders
of such Senior Indebtedness pursuant to the provisions of this Article Four
(equally and ratably with the holders of all indebtedness of the Company
which by its express terms is subordinated to other indebtedness of the
Company to substantially the same extent as the Notes are subordinated and is
entitled to like rights of subrogation) to the rights of the holders of
Senior Indebtedness to receive payments or distributions of cash, property or
securities of the Company applicable to the Senior Indebtedness until the
principal, premium, if any, and interest (including Liquidated Damages, if
any) on the Notes shall be paid in full, and, for the purposes of such
subrogation, no payments or distributions to the holders of the Senior
Indebtedness of any cash, property or securities to which the holders of the
Notes or the Trustee would be entitled except for the provisions of this
Article Four, and no payment pursuant to the provisions of this Article Four,
to or for the benefit of the holders of Senior Indebtedness by holders of the
Notes or the Trustee,


                                     -25-


<PAGE>


shall, as among the Company, its creditors other than holders of Senior
Indebtedness, and the holders of the Notes, be deemed to be a payment by the
Company to or on account of the Senior Indebtedness, and no payments or
distributions of cash, property or securities to or for the benefit of the
holders of the Notes pursuant to the subrogation provisions of this Article
Four, which would otherwise have been paid to the holders of Senior
Indebtedness, shall be deemed to be a payment by the Company to or for the
account of the Notes.  It is understood that the provisions of this Article
Four are intended solely for the purposes of defining the relative rights of
the holders of the Notes, on the one hand, and the holders of the Senior
Indebtedness, on the other hand.

       Nothing contained in this Article Four or elsewhere in this Indenture
or in the Notes is intended to or shall impair, as among the Company, its
creditors other than the holders of Senior Indebtedness, and the holders of
the Notes, the obligation of the Company, which is absolute and
unconditional, to pay to the holders of the Notes the principal of, premium,
if any, and interest (including Liquidated Damages, if any) on the Notes as
and when the same shall become due and payable in accordance with their
terms, or is intended to or shall affect the relative rights of the holders
of the Notes and creditors of the Company other than the holders of the
Senior Indebtedness, nor shall anything herein or therein prevent the Trustee
or the holder of any Note from exercising all remedies otherwise permitted by
applicable law upon default under this Indenture, subject to the rights, if
any, under this Article Four of the holders of Senior Indebtedness in respect
of cash, property or securities of the Company received upon the exercise of
any such remedy.

       Upon any payment or distribution of assets of the Company referred to
in this Article Four, the Trustee, subject to the provisions of Section 8.1,
and the holders of the Notes shall be entitled to rely upon any order or
decree made by any court of competent jurisdiction in which such bankruptcy,
dissolution, winding up, liquidation or reorganization proceedings are
pending, or a certificate of the receiver, trustee in bankruptcy, liquidating
trustee, agent or other Person making such payment or distribution, delivered
to the Trustee or to the holders of the Notes, for the purpose of
ascertaining the Persons entitled to participate in such distribution, the
holders of the Senior Indebtedness and other indebtedness of the Company, the
amount thereof or payable thereon and all other facts pertinent thereto or to
this Article Four.

       Section 4.4.   AUTHORIZATION TO EFFECT SUBORDINATION.  Each holder of
a Note by the holder's acceptance thereof authorizes and directs the Trustee
on the holder's behalf to take such action as may be necessary or appropriate
to effectuate the subordination as provided in this Article Four and appoints
the Trustee to act as the holder's attorney-in-fact for any and all such
purposes. If the Trustee does not file a proper proof of claim or proof of
debt in the form required in any proceeding referred to in the third
paragraph of Section 7.2 hereof at least thirty (30) days before the
expiration of the time to file such claim, the holders of any Senior
Indebtedness or their Representatives are hereby authorized to file an
appropriate claim for and on behalf of the holders of the Notes.

       Section 4.5.   NOTICE TO TRUSTEE.  The Company shall give prompt
written notice in the form of an Officers' Certificate to a Responsible
Officer of the Trustee and to any paying agent of any fact known to the
Company that would prohibit the making of any payment of monies to or by the
Trustee or any paying agent in respect of the Notes pursuant to the
provisions of this Article Four. Notwithstanding the provisions of this
Article Four or any other provision of this Indenture, the Trustee shall not
be charged with knowledge of the existence of any facts that would prohibit
the making of any payment of monies to or by the Trustee in respect of the
Notes pursuant to the provisions of this Article Four, unless and until a
Responsible Officer of the Trustee shall have received written notice thereof
at the Corporate Trust Office from the Company (in the form of an Officers'
Certificate) or a Representative or a holder or holders of Senior
Indebtedness, and before the receipt of any such written notice, the Trustee,
subject to the provisions of Section 8.1, shall be entitled in


                                     -26-


<PAGE>


all respects to assume that no such facts exist; provided, however, that if
on a date not less than one Business Day prior to the date upon which by the
terms hereof any such monies may become payable for any purpose (including,
without limitation, the payment of the principal of, or premium, if any, or
interest (including Liquidated Damages, if any) on any Note) the Trustee
shall not have received, with respect to such monies, the notice provided for
in this Section 4.5, then, anything herein contained to the contrary
notwithstanding, the Trustee shall have full power and authority to apply
monies received to the purpose for which they were received, and shall not be
affected by any notice to the contrary that may be received by it on or after
such prior date.

       Notwithstanding anything in this Article Four to the contrary, nothing
shall prevent any payment by the Trustee to the Noteholders of monies
deposited with it pursuant to Section 13.1, if a Responsible Officer of the
Trustee shall not have received written notice at the Corporate Trust Office
on or before one Business Day prior to the date such payment is due that such
payment is not permitted under Section 4.1 or 4.2.

       The Trustee, subject to the provisions of Section 8.1, shall be
entitled to rely on the delivery to it of a written notice by a
Representative or a person representing himself to be a holder of Senior
Indebtedness (or a trustee on behalf of such holder) to establish that such
notice has been given by a Representative or a holder of Senior Indebtedness
or a trustee on behalf of any such holder or holders.  The Trustee shall not
be required to make any payment or distribution to or on behalf of a holder
of Senior Indebtedness pursuant to this Article Four unless it has received
satisfactory evidence as to the amount of Senior Indebtedness held by such
Person, the extent to which such Person is entitled to participate in such
payment or distribution and any other facts pertinent to the rights of such
Person under this Article Four.

       Section 4.6.   TRUSTEE'S RELATION TO SENIOR INDEBTEDNESS.  The
Trustee, in its individual capacity, shall be entitled to all the rights set
forth in this Article Four in respect of any Senior Indebtedness at any time
held by it, to the same extent as any other holder of Senior Indebtedness,
and nothing in Section 8.13 or elsewhere in this Indenture shall deprive the
Trustee of any of its rights as such holder.

       With respect to the holders of Senior Indebtedness, the Trustee
undertakes to perform or to observe only such of its covenants and
obligations as are specifically set forth in this Article Four, and no
implied covenants or obligations with respect to the holders of Senior
Indebtedness shall be read into this Indenture against the Trustee.  The
Trustee shall not be deemed to owe any fiduciary duty to the holders of
Senior Indebtedness and, subject to the provisions of Section 8.1, the
Trustee shall not be liable to any holder of Senior Indebtedness (i) for any
failure to make any payments or distributions to such holder or (ii) if it
shall pay over or deliver to holders of Notes, the Company or any other
Person money in compliance with this Article Four.

       Section 4.7.   NO IMPAIRMENT OF SUBORDINATION.  No right of any
present or future holder of any Senior Indebtedness to enforce subordination
as herein provided shall at any time in any way be prejudiced or impaired by
any act or failure to act on the part of the Company or by any act or failure
to act, in good faith, by any such holder, or by any noncompliance by the
Company with the terms, provisions and covenants of this Indenture,
regardless of any knowledge thereof which any such holder may have or
otherwise be charged with.  Senior Indebtedness may be created, renewed or
extended and holders of Senior Indebtedness may exercise any rights under any
instrument creating or evidencing such Senior Indebtedness, including,
without limitation, any waiver of default thereunder, without any notice to
or consent from the holders of the Notes or the Trustee.  No compromise,
alteration, amendment, modification, extension, renewal or other change of,
or waiver, consent or other action in respect of, any liability or obligation
under or in respect of the Senior Indebtedness or any terms or conditions of
any instrument creating or evidencing such Senior Indebtedness



                                     -27-


<PAGE>

shall in any way alter or affect any of the provisions of this
Article Four or the subordination of the Notes provided thereby.

       SECTION 4.8.   CERTAIN CONVERSIONS NOT DEEMED PAYMENT.  For the purposes
of this Article Four only, (1) the issuance and delivery of junior securities
upon conversion of Notes in accordance with Article Fifteen shall not be deemed
to constitute a payment or distribution on account of the principal of, premium,
if any, or interest (including Liquidated Damages, if any) on Notes or on
account of the purchase or other acquisition of Notes, and (2) the payment,
issuance or delivery of cash (except in satisfaction of fractional shares
pursuant to Section 15.3), property or securities (other than junior securities)
upon conversion of a Note shall be deemed to constitute payment on account of
the principal of, premium, if any, or interest (including Liquidated Damages, if
any) on such Note.  For the purposes of this Section 4.8, the term "junior
securities" means (a) shares of any stock of any class of the Company or
(b) securities of the Company that are subordinated in right of payment to all
Senior Indebtedness that may be outstanding at the time of issuance or delivery
of such securities to substantially the same extent as, or to a greater extent
than, the Notes are so subordinated as provided in this Article Four.  Nothing
contained in this Article Four or elsewhere in this Indenture or in the Notes is
intended to or shall impair, as among the Company, its creditors (other than
holders of Senior Indebtedness) and the Noteholders, the right, which is
absolute and unconditional, of the Holder of any Note to convert such Note in
accordance with Article Fifteen.

       SECTION 4.9.   ARTICLE APPLICABLE TO PAYING AGENTS.  If at any time any
paying agent other than the Trustee shall have been appointed by the Company and
be then acting hereunder, the term "Trustee" as used in this Article Four shall
(unless the context otherwise requires) be construed as extending to and
including such paying agent within its meaning as fully for all intents and
purposes as if such paying agent were named in this Article Four in addition to
or in place of the Trustee; provided, however, that the first paragraph of
Section 4.5 shall not apply to the Company or any Affiliate of the Company if it
or such Affiliate acts as paying agent.

       The Trustee shall not be responsible for the actions or inactions of any
other paying agents (including the Company if acting as its own paying agent)
and shall have no control of any funds held by such other paying agents.

       SECTION 4.10.  SENIOR INDEBTEDNESS ENTITLED TO RELY.  The holders of
Senior Indebtedness (including, without limitation, Designated Senior
Indebtedness) shall have the right to rely upon this Article Four, and no
amendment or modification of the provisions contained herein shall diminish the
rights of such holders unless such holders shall have agreed in writing thereto.

       SECTION 4.11.  RELIANCE ON JUDICIAL ORDER OR CERTIFICATE OF LIQUIDATING
AGENT.  Upon any payment or distribution of assets of the Company referred to in
this Article Four, the Trustee and the Noteholders shall be entitled to rely
upon any order or decree entered by any court of competent jurisdiction in which
such insolvency, bankruptcy, receivership, liquidation, reorganization,
dissolution, winding up or similar case or proceeding is pending, or a
certificate of the trustee in bankruptcy, liquidating trustee, custodian,
receiver, assignee for the benefit of creditors, agent or other Person making
such payment or distribution, delivered to the Trustee or to the Noteholders,
for the purpose of ascertaining the Persons entitled to participate in such
payment or distribution, the holders of Senior Indebtedness and other
indebtedness of the Company, the amount thereof or payable thereon, the amount
or amounts paid or distributed thereon and all other facts pertinent thereto or
to this Article Four.

                                      -28-

<PAGE>

                                    ARTICLE FIVE

                        PARTICULAR COVENANTS OF THE COMPANY

       SECTION 5.1.   PAYMENT OF PRINCIPAL, PREMIUM AND INTEREST.  The Company
covenants and agrees that it will duly and punctually pay or cause to be paid
the principal of and premium, if any (including the redemption price upon
redemption pursuant to Article Three), and interest (including Liquidated
Damages, if any), on each of the Notes at the places, at the respective times
and in the manner provided herein and in the Notes.

       SECTION 5.2.   MAINTENANCE OF OFFICE OR AGENCY.  The Company will
maintain an office or agency in the Borough of Manhattan, the City of New York,
where the Notes may be surrendered for registration of transfer or exchange or
for presentation for payment or for conversion or redemption and where notices
and demands to or upon the Company in respect of the Notes and this Indenture
may be served.  The Company will give prompt written notice to the Trustee of
the location, and any change in the location, of such office or agency not
designated or appointed by the Trustee.  If at any time the Company shall fail
to maintain any such required office or agency or shall fail to furnish the
Trustee with the address thereof, such presentations, surrenders, notices and
demands may be made or served at the Corporate Trust Office or the office of
agency of the Trustee in The Borough of Manhattan, The City of New York (which
shall initially be located at State Street Bank and Trust Company, N.A., 61
Broadway, New York, NY  10006, Attention:  Corporate Trust Department (Lattice
Semiconductor Corporation, 4 3/4% Convertible Subordinated Notes due 2006).

       The Company may also from time to time designate co-registrars and one or
more offices or agencies where the Notes may be presented or surrendered for any
or all such purposes and may from time to time rescind such designations.  The
Company will give prompt written notice of any such designation or rescission
and of any change in the location of any such other office or agency.

       The Company hereby initially designates the Trustee as paying agent, Note
registrar, Custodian and conversion agent and each of the Corporate Trust Office
and the office of agency of the Trustee in The Borough of Manhattan, The City of
New York (which shall initially be located at State Street Bank and Trust
Company, N.A., 61 Broadway, New York, NY  10006, Attention:  Corporate Trust
Department (Lattice Semiconductor Corporation, 4 3/4% Convertible Subordinated
Notes due 2006)), shall be considered as one such office or agency of the
Company for each of the aforesaid purposes.

       So long as the Trustee is the Note registrar, the Trustee agrees to mail,
or cause to be mailed, the notices set forth in Section 8.10(a) and the third
paragraph of Section 8.11.  If co-registrars have been appointed in accordance
with this Section , the Trustee shall mail such notices only to the Company and
the holders of Notes it can identify from its records.

       SECTION 5.3.   APPOINTMENTS TO FILL VACANCIES IN TRUSTEE'S OFFICE.  The
Company, whenever necessary to avoid or fill a vacancy in the office of Trustee,
will appoint, in the manner provided in Section 8.10, a Trustee, so that there
shall at all times be a Trustee hereunder.

       SECTION 5.4.   PROVISIONS AS TO PAYING AGENT.

              (a)     If the Company shall appoint a paying agent other than
the Trustee, or if the Trustee shall appoint such a paying agent, the Company
will cause such paying agent to execute and deliver to the


                                       -29-

<PAGE>

Trustee an instrument in which such agent shall agree with the Trustee,
subject to the provisions of this Section 5.4:

                      (1)   that it will hold all sums held by it as such agent
              for the payment of the principal of and premium, if any, or
              interest (including Liquidated Damages, if any) on the Notes
              (whether such sums have been paid to it by the Company or by any
              other obligor on the Notes) in trust for the benefit of the
              holders of the Notes;

                      (2)   that it will give the Trustee notice of any failure
              by the Company (or by any other obligor on the Notes) to make any
              payment of the principal of and premium, if any, or interest on
              the Notes when the same shall be due and payable; and

                      (3)   that at any time during the continuance of an Event
              of Default, upon request of the Trustee, it will forthwith pay to
              the Trustee all sums so held in trust.

       The Company shall, on or before each due date of the principal of,
premium, if any, or interest on the Notes, deposit with the paying agent a sum
(in funds which are immediately available on the due date for such payment)
sufficient to pay such principal, premium, if any, or interest, and (unless such
paying agent is the Trustee) the Company will promptly notify the Trustee of any
failure to take such action; provided, however, that if such deposit is made on
the due date, such deposit shall be received by the paying agent by 10:00 a.m.
New York City time, on such date.

              (b)     If the Company shall act as its own paying agent, it
will, on or before each due date of the principal of, premium, if any, or
interest (including Liquidated Damages, if any) on the Notes, set aside,
segregate and hold in trust for the benefit of the holders of the Notes a sum
sufficient to pay such principal, premium, if any, or interest (including
Liquidated Damages, if any) so becoming due and will promptly notify the Trustee
of any failure to take such action and of any failure by the Company (or any
other obligor under the Notes) to make any payment of the principal of, premium,
if any, or interest (including Liquidated Damages, if any) on the Notes when the
same shall become due and payable.

              (c)     Anything in this Section 5.4 to the contrary
notwithstanding, the Company may, at any time, for the purpose of obtaining a
satisfaction and discharge of this Indenture, or for any other reason, pay or
cause to be paid to the Trustee all sums held in trust by the Company or any
paying agent hereunder as required by this Section 5.4, such sums to be held by
the Trustee upon the trusts herein contained and upon such payment by the
Company or any paying agent to the Trustee, the Company or such paying agent
shall be released from all further liability with respect to such sums.

              (d)     Anything in this Section 5.4 to the contrary
notwithstanding, the agreement to hold sums in trust as provided in this
Section 5.4 is subject to Sections 13.3 and 13.4.

       The Trustee shall not be responsible for the actions of any other paying
agents (including the Company if acting as its own paying agent) and shall have
no control of any funds held by such other paying agents.

       SECTION 5.5.   EXISTENCE.  Subject to Article Twelve, the Company will
do or cause to be done all things necessary to preserve and keep in full force
and effect its existence and rights (charter and statutory); provided, however,
that the Company shall not be required to preserve any such right if the Company
shall


                                      -30-


<PAGE>

determine that the preservation thereof is no longer desirable in the conduct
of the business of the Company and that the loss thereof is not
disadvantageous in any material respect to the Noteholders.

       SECTION 5.6.   MAINTENANCE OF PROPERTIES.  The Company will cause all
properties used or useful in the conduct of its business or the business of any
Significant Subsidiary to be maintained and kept in good condition, repair and
working order and supplied with all necessary equipment and will cause to be
made all necessary repairs, renewals, replacements, betterments and improvements
thereof, all as in the judgment of the Company may be necessary so that the
business carried on in connection therewith may be properly and advantageously
conducted at all times; provided, however, that nothing in this Section shall
prevent the Company from discontinuing the operation or maintenance of any of
such properties if such discontinuance is, in the judgment of the Company,
desirable in the conduct of its business or the business of any subsidiary and
not disadvantageous in any material respect to the Noteholders.

       SECTION 5.7.   PAYMENT OF TAXES AND OTHER CLAIMS.  The Company will pay
or discharge, or cause to be paid or discharged, before the same may become
delinquent, (i) all taxes, assessments and governmental charges levied or
imposed upon the Company or any Significant Subsidiary or upon the income,
profits or property of the Company or any Significant Subsidiary, (ii) all
claims for labor, materials and supplies which, if unpaid, might by law become a
lien or charge upon the property of the Company or any Significant Subsidiary
and (iii) all stamps and other duties, if any, which may be imposed by the
United States or any political subdivision thereof or therein in connection with
the issuance, transfer, exchange or conversion of any Notes or with respect to
this Indenture; provided, however, that, in the case of clauses (i) and (ii),
the Company shall not be required to pay or discharge or cause to be paid or
discharged any such tax, assessment, charge or claim (A) if the failure to do so
will not, in the aggregate, have a material adverse impact on the Company, or
(B) if the amount, applicability or validity is being contested in good faith by
appropriate proceedings.

       SECTION 5.8.   RULE 144A INFORMATION REQUIREMENT.  Within the period
prior to the expiration of the holding period applicable to sales thereof under
Rule 144(k) under the Securities Act (or any successor provision), the Company
covenants and agrees that it shall, during any period in which it is not subject
to Section 13 or 15(d) under the Exchange Act, make available to any holder or
beneficial holder of Notes or any Common Stock issued upon conversion thereof
which continue to be Restricted Securities in connection with any sale thereof
and any prospective purchaser of Notes or such Common Stock designated by such
holder or beneficial holder, the information required pursuant to
Rule 144A(d)(4) under the Securities Act upon the request of any holder or
beneficial holder of the Notes or such Common Stock and it will take such
further action as any holder or beneficial holder of such Notes or such Common
Stock may reasonably request, all to the extent required from time to time to
enable such holder or beneficial holder to sell its Notes or Common Stock
without registration under the Securities Act within the limitation of the
exemption provided by Rule 144A, as such Rule may be amended from time to time.
Upon the request of any holder or any beneficial holder of the Notes or such
Common Stock, the Company will deliver to such holder a written statement as to
whether it has complied with such requirements.

       SECTION 5.9.   STAY, EXTENSION AND USURY LAWS.  The Company covenants
(to the extent that it may lawfully do so) that it shall not at any time insist
upon, plead, or in any manner whatsoever claim or take the benefit or advantage
of, any stay, extension or usury law or other law which would prohibit or
forgive the Company from paying all or any portion of the principal of, premium,
if any, or interest (including Liquidated Damages, if any) on the Notes as
contemplated herein, wherever enacted, now or at any time hereafter in force, or
which may affect the covenants or the performance of this Indenture and the
Company (to the extent it may lawfully do so) hereby expressly waives all
benefit or advantage of any such law, and covenants that it


                                      -31-


<PAGE>

will not, by resort to any such law, hinder, delay or impede the execution of
any power herein granted to the Trustee, but will suffer and permit the
execution of every such power as though no such law had been enacted.

       SECTION 5.10.  COMPLIANCE CERTIFICATE.  The Company shall deliver to the
Trustee, within one hundred twenty (120) days after the end of each fiscal year
of the Company, a certificate signed by either the principal executive officer,
principal financial officer or principal accounting officer of the Company,
stating whether or not to the best knowledge of the signer thereof the Company
is in default in the performance and observance of any of the terms, provisions
and conditions of this Indenture (without regard to any period of grace or
requirement of notice provided hereunder) and, if the Company shall be in
default, specifying all such defaults and the nature and the status thereof of
which the signer may have knowledge.

       The Company will deliver to the Trustee, forthwith upon becoming aware of
(i) any default in the performance or observance of any covenant, agreement or
condition contained in this Indenture, or (ii) any Event of Default, an
Officers' Certificate specifying with particularity such default or Event of
Default and further stating what action the Company has taken, is taking or
proposes to take with respect thereto.

       Any notice required to be given under this Section 5.10 or Section 4.5
shall be delivered to a Responsible Officer of the Trustee at its Corporate
Trust Office.  In the event that the payment of the Notes is accelerated because
of an Event of Default, the Company shall promptly provide written notice to the
Trustee specifying the names and addresses of the holders of Senior Indebtedness
if the Trustee (and not the Company) is to provide holders of Senior
Indebtedness notice of such acceleration under Section 4.5 of the Indenture.

       SECTION 5.11.  LIQUIDATED DAMAGES NOTICE.  In the event that the Company
is required to pay Liquidated Damages to holders of Notes pursuant to the
Registration Rights Agreement, the Company will provide written notice
("Liquidated Damages Notice") to the Trustee of its obligation to pay Liquidated
Damages no later than fifteen days prior to the proposed payment date for the
Liquidated Damages, and the Liquidated Damages Notice shall set forth the amount
of Liquidated Damages to be paid by the Company on such payment date.  The
Trustee shall not at any time be under any duty to responsibility to any holder
of Notes to determine the Liquidated Damages, or with respect to the nature,
extent or calculation of the amount of Liquidated Damages when made, or with
respect to the method employed in such calculation of the Liquidated Damages.

                                    ARTICLE SIX

                           NOTEHOLDERS' LISTS AND REPORTS
                           BY THE COMPANY AND THE TRUSTEE

       SECTION 6.1.   NOTEHOLDERS' LISTS.  The Company covenants and agrees
that it will furnish or cause to be furnished to the Trustee, semiannually, not
more than fifteen (15) days after each April 15 and October 15 in each year
beginning with April 15, 2000, and at such other times as the Trustee may
request in writing, within thirty (30) days after receipt by the Company of any
such request (or such lesser time as the Trustee may reasonably request in order
to enable it to timely provide any notice to be provided by it hereunder), a
list in such form as the Trustee may reasonably require of the names and
addresses of the holders of Notes as of a date not more than fifteen (15) days
(or such other date as the Trustee may reasonably request in order to so provide
any such notices) prior to the time such information is furnished, except that
no


                                      -32-

<PAGE>

such list need be furnished by the Company to the Trustee so long as the
Trustee is acting as the sole Note registrar.

       SECTION 6.2.   PRESERVATION AND DISCLOSURE OF LISTS.

              (a)     The Trustee shall preserve, in as current a form as is
reasonably practicable, all information as to the names and addresses of the
holders of Notes contained in the most recent list furnished to it as provided
in Section 6.1 or maintained by the Trustee in its capacity as Note registrar or
co-registrar in respect of the Notes, if so acting.  The Trustee may destroy any
list furnished to it as provided in Section 6.1 upon receipt of a new list so
furnished.

              (b)     The rights of Noteholders to communicate with other
holders of Notes with respect to their rights under this Indenture or under the
Notes, and the corresponding rights and duties of the Trustee, shall be as
provided by the Trust Indenture Act.

              (c)     Every Noteholder, by receiving and holding the same,
agrees with the Company and the Trustee that neither the Company nor the Trustee
nor any agent of either of them shall be held accountable by reason of any
disclosure of information as to names and addresses of holders of Notes made
pursuant to the Trust Indenture Act.

       SECTION 6.3.   REPORTS BY TRUSTEE.

              (a)     Within sixty (60) days after April 15 of each year
commencing with the year 2000, the Trustee shall transmit to holders of Notes
such reports dated as of April 15 of the year in which such reports are made
concerning the Trustee and its actions under this Indenture as may be required
pursuant to the Trust Indenture Act at the times and in the manner provided
pursuant thereto.

              (b)     A copy of such report shall, at the time of such
transmission to holders of Notes, be filed by the Trustee with each stock
exchange and automated quotation system upon which the Notes are listed and with
the Company.  The Company will promptly notify the Trustee in writing when the
Notes are listed on any stock exchange or automated quotation system or delisted
therefrom.

       SECTION 6.4.   REPORTS BY COMPANY.  The Company shall file with the
Trustee (and the Commission if at any time after the Indenture becomes qualified
under the Trust Indenture Act), and transmit to holders of Notes, such
information, documents and other reports and such summaries thereof, as may be
required pursuant to the Trust Indenture Act at the times and in the manner
provided pursuant to such Act, whether or not the Notes are governed by such
Act; provided, however, that any such information, documents or reports required
to be filed with the Commission pursuant to Section 13 or 15(d) of the Exchange
Act shall be filed with the Trustee within fifteen (15) days after the same is
so required to be filed with the Commission.  Delivery of such reports,
information and documents to the Trustee is for informational purposes only and
the Trustee's receipt of such shall not constitute constructive notice of any
information contained therein or determinable from information contained
therein, including the Company's compliance with any of its covenants hereunder
(as to which the Trustee is entitled to rely exclusively on Officers'
Certificates).


                                      -33-

<PAGE>

                                   ARTICLE SEVEN

                            REMEDIES OF THE TRUSTEE AND
                         NOTEHOLDERS ON AN EVENT OF DEFAULT

       SECTION 7.1.   EVENTS OF DEFAULT.  In case one or more of the following
Events of Default (whatever the reason for such Event of Default and whether it
shall be voluntary or involuntary or be effected by operation of law or pursuant
to any judgment, decree or order of any court or any order, rule or regulation
of any administrative or governmental body) shall have occurred and be
continuing:

              (a)     default in the payment of any installment of interest
(including Liquidated Damages, if any) upon any of the Notes as and when the
same shall become due and payable, and continuance of such default for a period
of thirty (30) days, whether or not such payment is permitted under Article Four
hereof; or

              (b)     default in the payment of the principal of or premium, if
any, on any of the Notes as and when the same shall become due and payable
either at maturity or in connection with any redemption pursuant to Article
Three, by acceleration or otherwise, whether or not such payment is permitted
under Article Four hereof; or

              (c)     failure on the part of the Company duly to observe or
perform any other of the covenants or agreements on the part of the Company in
the Notes or in this Indenture (other than a covenant or agreement a default in
whose performance or whose breach is elsewhere in this Section 7.1 specifically
dealt with) continued for a period of sixty (60) days after the date on which
written notice of such failure, requiring the Company to remedy the same, shall
have been given to the Company by the Trustee, or the Company and a Responsible
Officer of the Trustee by the holders of at least twenty-five percent (25%) in
aggregate principal amount of the Notes at the time outstanding determined in
accordance with Section 9.4; or

              (d)     the Company shall commence a voluntary case or other
proceeding seeking liquidation, reorganization or other relief with respect to
the Company or its debts under any bankruptcy, insolvency or other similar law
now or hereafter in effect or seeking the appointment of a trustee, receiver,
liquidator, custodian or other similar official of the Company or any
substantial part of the property of the Company, or shall consent to any such
relief or to the appointment of or taking possession by any such official in an
involuntary case or other proceeding commenced against the Company, or shall
make a general assignment for the benefit of creditors, or shall fail generally
to pay its debts as they become due; or

              (e)     an involuntary case or other proceeding shall be
commenced against the Company seeking liquidation, reorganization or other
relief with respect to the Company or its debts under any bankruptcy, insolvency
or other similar law now or hereafter in effect or seeking the appointment of a
trustee, receiver, liquidator, custodian or other similar official of the
Company or any substantial part of the property of the Company, and such
involuntary case or other proceeding shall remain undismissed and unstayed for a
period of ninety (90) consecutive days;

then, and in each and every such case (other than an Event of Default specified
in Section 7.1(d) or (e)), unless the principal of all of the Notes shall have
already become due and payable, either the Trustee or the holders of not less
than twenty-five percent (25%) in aggregate principal amount of the Notes then
outstanding hereunder determined in accordance with Section 9.4, by notice in
writing to the Company (and to the Trustee if given by Noteholders), may declare
the principal of and premium, if any, on all the Notes and the interest accrued
thereon (including Liquidated Damages, if any) to be due and payable
immediately, and


                                      -34-


<PAGE>

upon any such declaration the same shall become and shall be
immediately due and payable, anything in this Indenture or in the Notes
contained to the contrary notwithstanding.  If an Event of Default specified in
Section 7.1(d) or (e) occurs, the principal of all the Notes and the interest
accrued thereon shall (including Liquidated Damages, if any) be immediately and
automatically due and payable without necessity of further action.  This
provision, however, is subject to the conditions that if, at any time after the
principal of the Notes shall have been so declared due and payable, and before
any judgment or decree for the payment of the monies due shall have been
obtained or entered as hereinafter provided, the Company shall pay or shall
deposit with the Trustee a sum sufficient to pay all matured installments of
interest upon (including Liquidated Damages, if any) all Notes and the principal
of and premium, if any, on any and all Notes which shall have become due
otherwise than by acceleration (with interest on overdue installments of
interest (including Liquidated Damages, if any) (to the extent that payment of
such interest is enforceable under applicable law) and on such principal and
premium, if any, at the rate borne by the Notes, to the date of such payment or
deposit) and amounts due to the Trustee pursuant to Section 8.6, and if any and
all defaults under this Indenture, other than the nonpayment of principal of and
premium, if any, and accrued interest on (including Liquidated Damages, if any)
Notes which shall have become due by acceleration, shall have been cured or
waived pursuant to Section 7.7, then and in every such case the holders of a
majority in aggregate principal amount of the Notes then outstanding, by written
notice to the Company and to the Trustee, may waive all defaults or Events of
Default and rescind and annul such declaration and its consequences; but no such
waiver or rescission and annulment shall extend to or shall affect any
subsequent default or Event of Default, or shall impair any right consequent
thereon.  The Company shall notify a Responsible Officer of the Trustee,
promptly upon becoming aware thereof, of any Event of Default.

       In case the Trustee shall have proceeded to enforce any right under this
Indenture and such proceedings shall have been discontinued or abandoned because
of such waiver or rescission and annulment or for any other reason or shall have
been determined adversely to the Trustee, then and in every such case the
Company, the holders of Notes, and the Trustee shall be restored respectively to
their several positions and rights hereunder, and all rights, remedies and
powers of the Company, the holders of Notes, and the Trustee shall continue as
though no such proceeding had been taken.

       SECTION 7.2.   PAYMENTS OF NOTES ON DEFAULT; SUIT THEREFOR.  The Company
covenants that (a) in case default shall be made in the payment of any
installment of interest upon (including Liquidated Damages, if any) any of the
Notes as and when the same shall become due and payable, and such default shall
have continued for a period of thirty (30) days, or (b) in case default shall be
made in the payment of the principal of or premium, if any, on any of the Notes
as and when the same shall have become due and payable, whether at maturity of
the Notes or in connection with any redemption, by or under this Indenture
declaration or otherwise, then, upon demand of the Trustee, the Company will pay
to the Trustee, for the benefit of the holders of the Notes, the whole amount
that then shall have become due and payable on all such Notes for principal and
premium, if any, or interest (including Liquidated Damages, if any), as the case
may be, with interest upon the overdue principal and premium, if any, and (to
the extent that payment of such interest is enforceable under applicable law)
upon the overdue installments of interest (including Liquidated Damages, if any)
at the rate borne by the Notes, and, in addition thereto, such further amount as
shall be sufficient to cover the costs and expenses of collection, including
reasonable compensation to the Trustee, its agents, attorneys and counsel, and
all other amounts due the Trustee under Section 8.6.  Until such demand by the
Trustee, the Company may pay the principal of and premium, if any, and interest
on (including Liquidated Damages, if any) the Notes to the registered holders,
whether or not the Notes are overdue.

       In case the Company shall fail forthwith to pay such amounts upon such
demand, the Trustee, in its own name and as trustee of an express trust, shall
be entitled and empowered to institute any actions or


                                      -35-


<PAGE>

proceedings at law or in equity for the collection of the sums so due and
unpaid, and may prosecute any such action or proceeding to judgment or final
decree, and may enforce any such judgment or final decree against the Company
or any other obligor on the Notes and collect in the manner provided by law
out of the property of the Company or any other obligor on the Notes wherever
situated the monies adjudged or decreed to be payable.

       In case there shall be pending proceedings for the bankruptcy or for the
reorganization of the Company or any other obligor on the Notes under Title 11
of the United States Code, or any other applicable law, or in case a receiver,
assignee or trustee in bankruptcy or reorganization, liquidator, sequestrator or
similar official shall have been appointed for or taken possession of the
Company or such other obligor, the property of the Company or such other
obligor, or in the case of any other judicial proceedings relative to the
Company or such other obligor upon the Notes, or to the creditors or property of
the Company or such other obligor, the Trustee, irrespective of whether the
principal of the Notes shall then be due and payable as therein expressed or by
declaration or otherwise and irrespective of whether the Trustee shall have made
any demand pursuant to the provisions of this Section 7.2, shall be entitled and
empowered, by intervention in such proceedings or otherwise, to file and prove a
claim or claims for the whole amount of principal, premium, if any, and interest
(including Liquidated Damages, if any) owing and unpaid in respect of the Notes,
and, in case of any judicial proceedings, to file such proofs of claim and other
papers or documents as may be necessary or advisable in order to have the claims
of the Trustee and of the Noteholders allowed in such judicial proceedings
relative to the Company or any other obligor on the Notes, its or their
creditors, or its or their property, and to collect and receive any monies or
other property payable or deliverable on any such claims, and to distribute the
same after the deduction of any amounts due the Trustee under Section 8.6, and
any receiver, assignee or trustee in bankruptcy or reorganization, liquidator,
custodian or similar official is hereby authorized by each of the Noteholders to
make such payments to the Trustee, and, in the event that the Trustee shall
consent to the making of such payments directly to the Noteholders, to pay to
the Trustee any amount due it for reasonable compensation, expenses, advances
and disbursements, including counsel fees incurred by it up to the date of such
distribution.  To the extent that such payment of reasonable compensation,
expenses, advances and disbursements out of the estate in any such proceedings
shall be denied for any reason, payment of the same shall be secured by a lien
on, and shall be paid out of, any and all distributions, dividends, monies,
securities and other property which the holders of the Notes may be entitled to
receive in such proceedings, whether in liquidation or under any plan of
reorganization or arrangement or otherwise.

       All rights of action and of asserting claims under this Indenture, or
under any of the Notes, may be enforced by the Trustee without the possession of
any of the Notes, or the production thereof at any trial or other proceeding
relative thereto, and any such suit or proceeding instituted by the Trustee
shall be brought in its own name as trustee of an express trust, and any
recovery of judgment shall, after provision for the payment of the reasonable
compensation, expenses, disbursements and advances of the Trustee, its agent and
counsel, be for the ratable benefit of the holders of the Notes.

       In any proceedings brought by the Trustee (and in any proceedings
involving the interpretation of any provision of this Indenture to which the
Trustee shall be a party) the Trustee shall be held to represent all the holders
of the Notes, and it shall not be necessary to make any holders of the Notes
parties to any such proceedings.

       SECTION 7.3.   APPLICATION OF MONIES COLLECTED BY TRUSTEE.  Any monies
collected by the Trustee pursuant to this Article Seven shall be applied in the
order following, at the date or dates fixed by the Trustee


                                      -36-

<PAGE>

for the distribution of such monies, upon presentation of the several Notes,
and stamping thereon the payment, if only partially paid, and upon surrender
thereof, if fully paid:

              FIRST: To the payment of all amounts due the Trustee under
       Section 8.6;

              SECOND: Subject to the provisions of Article Four, in case the
       principal of the outstanding Notes shall not have become due and be
       unpaid, to the payment of interest on (including Liquidated Damages, if
       any) the Notes in default in the order of the maturity of the
       installments of such interest, with interest (to the extent that such
       interest has been collected by the Trustee) upon the overdue installments
       of interest (including Liquidated Damages, if any) at the rate borne by
       the Notes, such payments to be made ratably to the Persons entitled
       thereto;

              THIRD: Subject to the provisions of Article Four, in case the
       principal of the outstanding Notes shall have become due, by declaration
       or otherwise, and be unpaid to the payment of the whole amount then owing
       and unpaid upon the Notes for principal and premium, if any, and interest
       (including Liquidated Damages, if any), with interest on the overdue
       principal and premium, if any, and (to the extent that such interest has
       been collected by the Trustee) upon overdue installments of interest
       (including Liquidated Damages, if any) at the rate borne by the Notes,
       and in case such monies shall be insufficient to pay in full the whole
       amounts so due and unpaid upon the Notes, then to the payment of such
       principal and premium, if any, and interest (including Liquidated
       Damages, if any) without preference or priority of principal and premium,
       if any, over interest (including Liquidated Damages, if any), or of
       interest (including Liquidated Damages, if any) over principal and
       premium, if any, or of any installment of interest over any other
       installment of interest, or of any Note over any other Note, ratably to
       the aggregate of such principal and premium, if any, and accrued and
       unpaid interest; and

              FOURTH: Subject to the provisions of Article Four, to the payment
       of the remainder, if any, to the Company or any other Person lawfully
       entitled thereto.

       SECTION 7.4.   PROCEEDINGS BY NOTEHOLDER.  No holder of any Note shall
have any right by virtue of or by reference to any provision of this Indenture
to institute any suit, action or proceeding in equity or at law upon or under or
with respect to this Indenture, or for the appointment of a receiver, trustee,
liquidator, custodian or other similar official, or for any other remedy
hereunder, unless such holder previously shall have given to the Trustee written
notice of an Event of Default and of the continuance thereof, as hereinbefore
provided, and unless also the holders of not less than twenty-five percent (25%)
in aggregate principal amount of the Notes then outstanding shall have made
written request upon the Trustee to institute such action, suit or proceeding in
its own name as Trustee hereunder and shall have offered to the Trustee such
reasonable indemnity as it may require against the costs, expenses and
liabilities to be incurred therein or thereby, and the Trustee for sixty (60)
days after its receipt of such notice, request and offer of indemnity, shall
have neglected or refused to institute any such action, suit or proceeding and
no direction inconsistent with such written request shall have been given to the
Trustee pursuant to Section 7.7; it being understood and intended, and being
expressly covenanted by the taker and holder of every Note with every other
taker and holder and the Trustee, that no one or more holders of Notes shall
have any right in any manner whatever by virtue of or by reference to any
provision of this Indenture to affect, disturb or prejudice the rights of any
other holder of Notes, or to obtain or seek to obtain priority over or
preference to any other such holder, or to enforce any right under this
Indenture, except in the manner herein provided and for the equal, ratable and
common benefit of all holders of Notes (except as otherwise provided herein).
For the protection and enforcement of


                                      -37-

<PAGE>

this Section 7.4, each and every Noteholder and the Trustee shall be entitled
to such relief as can be given either at law or in equity.

       Notwithstanding any other provision of this Indenture and any provision
of any Note, the right of any holder of any Note to receive payment of the
principal of and premium, if any (including the redemption price upon redemption
pursuant to Article Three), and accrued interest on (including Liquidated
Damages, if any) such Note, on or after the respective due dates expressed in
such Note or in the event of redemption, or to institute suit for the
enforcement of any such payment on or after such respective dates against the
Company shall not be impaired or affected without the consent of such holder.

       Anything in this Indenture or the Notes to the contrary notwithstanding,
the holder of any Note, without the consent of either the Trustee or the holder
of any other Note, in its own behalf and for its own benefit, may enforce, and
may institute and maintain any proceeding suitable to enforce, its rights of
conversion as provided herein.

       SECTION 7.5.   PROCEEDINGS BY TRUSTEE.  In case of an Event of Default
known to a Responsible Officer of the Trustee, the Trustee may, in its
discretion, proceed to protect and enforce the rights vested in it by this
Indenture by such appropriate judicial proceedings as are necessary to protect
and enforce any of such rights, either by suit in equity or by action at law or
by proceeding in bankruptcy or otherwise, whether for the specific enforcement
of any covenant or agreement contained in this Indenture or in aid of the
exercise of any power granted in this Indenture, or to enforce any other legal
or equitable right vested in the Trustee by this Indenture or by law.

       SECTION 7.6.   REMEDIES CUMULATIVE AND CONTINUING.  Except as provided
in Section 2.6, all powers and remedies given by this Article Seven to the
Trustee or to the Noteholders shall, to the extent permitted by law, be deemed
cumulative and not exclusive of any thereof or of any other powers and remedies
available to the Trustee or the holders of the Notes, by judicial proceedings or
otherwise, to enforce the performance or observance of the covenants and
agreements contained in this Indenture, and no delay or omission of the Trustee
or of any holder of any of the Notes to exercise any right or power accruing
upon any default or Event of Default occurring and continuing as aforesaid shall
impair any such right or power, or shall be construed to be a waiver of any such
default or any acquiescence therein, and, subject to the provisions of
Section 7.4, every power and remedy given by this Article Seven or by law to the
Trustee or to the Noteholders may be exercised from time to time, and as often
as shall be deemed expedient, by the Trustee or by the Noteholders.

       SECTION 7.7.   DIRECTION OF PROCEEDINGS AND WAIVER OF DEFAULTS BY
MAJORITY OF NOTEHOLDERS.  The holders of a majority in aggregate principal
amount of the Notes at the time outstanding determined in accordance with
Section 9.4 shall have the right to direct the time, method and place of
conducting any proceeding for any remedy available to the Trustee or exercising
any trust or power conferred on the Trustee; provided, however, that (a) such
direction shall not be in conflict with any rule of law or with this Indenture,
(b) the Trustee may take any other action which is not inconsistent with such
direction and (c) the Trustee may decline to take any action that would benefit
some Noteholder to the detriment of other Noteholders.  The holders of a
majority in aggregate principal amount of the Notes at the time outstanding
determined in accordance with Section 9.4 may, on behalf of the holders of all
of the Notes, waive any past default or Event of Default hereunder and its
consequences except (i) a default in the payment of interest (including
Liquidated Damages, if any) or premium, if any, on, or the principal of, the
Notes, (ii) a failure by the Company to convert any Notes into Common Stock,
(iii) a default in the payment of redemption price pursuant to Article Three or
(iv) a default in respect of a covenant or provisions hereof which under Article
Eleven cannot be modified or amended without the consent of the holders of each
or all Notes then outstanding or affected

                                      -38-

<PAGE>

thereby.  Upon any such waiver, the Company, the Trustee and the holders of
the Notes shall be restored to their former positions and rights hereunder;
but no such waiver shall extend to any subsequent or other default or Event
of Default or impair any right consequent thereon.  Whenever any default or
Event of Default hereunder shall have been waived as permitted by this
Section 7.7, said default or Event of Default shall for all purposes of the
Notes and this Indenture be deemed to have been cured and to be not
continuing; but no such waiver shall extend to any subsequent or other
default or Event of Default or impair any right consequent thereon.

       SECTION 7.8.   NOTICE OF DEFAULTS.  The Trustee shall, within ninety
(90) days after a Responsible Officer of the Trustee has knowledge of the
occurrence of a default, mail to all Noteholders, as the names and addresses
of such holders appear upon the Note register, notice of all defaults known
to a Responsible Officer, unless such defaults shall have been cured or
waived before the giving of such notice; provided, however, that except in
the case of default in the payment of the principal of, or premium, if any,
or interest (including Liquidated Damages, if any) on any of the Notes, the
Trustee shall be protected in withholding such notice if and so long as a
trust committee of directors and/or Responsible Officers of the Trustee in
good faith determines that the withholding of such notice is in the interests
of the Noteholders.

       SECTION 7.9.   UNDERTAKING TO PAY COSTS.  All parties to this
Indenture agree, and each holder of any Note by his acceptance thereof shall
be deemed to have agreed, that any court may, in its discretion, require, in
any suit for the enforcement of any right or remedy under this Indenture, or
in any suit against the Trustee for any action taken or omitted by it as
Trustee, the filing by any party litigant in such suit of an undertaking to
pay the costs of such suit and that such court may in its discretion assess
reasonable costs, including reasonable attorneys' fees and expenses, against
any party litigant in such suit, having due regard to the merits and good
faith of the claims or defenses made by such party litigant; provided,
however, that the provisions of this Section 7.9 (to the extent permitted by
law) shall not apply to any suit instituted by the Trustee, to any suit
instituted by any Noteholder, or group of Noteholders, holding in the
aggregate more than ten percent in principal amount of the Notes at the time
outstanding determined in accordance with Section 9.4, or to any suit
instituted by any Noteholder for the enforcement of the payment of the
principal of or premium, if any, or interest on any Note on or after the due
date expressed in such Note or to any suit for the enforcement of the right
to convert any Note in accordance with the provisions of Article Fifteen.

                                ARTICLE EIGHT

                                 THE TRUSTEE

       SECTION 8.1.   DUTIES AND RESPONSIBILITIES OF TRUSTEE.  The Trustee,
prior to the occurrence of an Event of Default and after the curing of all
Events of Default which may have occurred, undertakes to perform such duties
and only such duties as are specifically set forth in this Indenture.  In
case an Event of Default has occurred (which has not been cured or waived),
the Trustee shall exercise such of the rights and powers vested in it by this
Indenture, and use the same degree of care and skill in their exercise, as a
prudent person would exercise or use under the circumstances in the conduct
of his own affairs.

       No provision of this Indenture shall be construed to relieve the
Trustee from liability for its own negligent action, its own negligent
failure to act or its own willful misconduct, except that:

              (a)     prior to the occurrence of an Event of Default and
after the curing or waiving of all Events of Default which may have occurred:


                                      -39-
<PAGE>

                      (1)   the duties and obligations of the Trustee shall be
              determined solely by the express provisions of this Indenture and
              the Trust Indenture Act, and the Trustee shall not be liable
              except for the performance of such duties and obligations as are
              specifically set forth in this Indenture and no implied covenants
              or obligations shall be read into this Indenture and the Trust
              Indenture Act against the Trustee; and

                      (2)   in the absence of bad faith and willful misconduct
              on the part of the Trustee, the Trustee may conclusively rely as
              to the truth of the statements and the correctness of the opinions
              expressed therein, upon any certificates or opinions furnished to
              the Trustee and conforming to the requirements of this Indenture;
              but, in the case of any such certificates or opinions which by any
              provisions hereof are specifically required to be furnished to the
              Trustee, the Trustee shall be under a duty to examine the same to
              determine whether or not they conform to the requirements of this
              Indenture;

              (b)     the Trustee shall not be liable for any error of judgment
made in good faith by a Responsible Officer or Officers of the Trustee, unless
the Trustee was negligent in ascertaining the pertinent facts;

              (c)     the Trustee shall not be liable with respect to any
action taken or omitted to be taken by it in good faith in accordance with the
written direction of the holders of not less than a majority in principal amount
of the Notes at the time outstanding determined as provided in Section 9.4
relating to the time, method and place of conducting any proceeding for any
remedy available to the Trustee, or exercising any trust or power conferred upon
the Trustee, under this Indenture;

              (d)     whether or not therein provided, every provision of this
Indenture relating to the conduct or affecting the liability of, or affording
protection to, the Trustee shall be subject to the provisions of this Section ;

              (e)     the Trustee shall not be liable in respect of any payment
(as to the correctness of amount, entitlement to receive or any other matters
relating to payment) or notice effected by the Company or any paying agent or
any records maintained by any co-registrar with respect to the Notes; and

              (f)     if any party fails to deliver a notice relating to an
event the fact of which, pursuant to this Indenture, requires notice to be sent
to the Trustee, the Trustee may conclusively rely on its failure to receive such
notice as reason to act as if no such event occurred.

       None of the provisions contained in this Indenture shall require the
Trustee to expend or risk its own funds or otherwise incur personal financial
liability in the performance of any of its duties or in the exercise of any
of its rights or powers, if there is reasonable ground for believing that the
repayment of such funds or adequate indemnity against such risk or liability
is not reasonably assured to it.

       SECTION 8.2.   RELIANCE ON DOCUMENTS, OPINIONS, ETC.  Except as
otherwise provided in Section 8.1:

              (a)     the Trustee may rely and shall be protected in acting
upon any resolution, certificate, statement, instrument, opinion, report,
notice, request, consent, order, bond, debenture, note, coupon or other paper
or document (whether in its original or facsimile form) believed by it in
good faith to be genuine and to have been signed or presented by the proper
party or parties;


                                      -40-
<PAGE>

              (b)     any request, direction, order or demand of the Company
mentioned herein shall be sufficiently evidenced by an Officers' Certificate
(unless other evidence in respect thereof be herein specifically prescribed);
and any resolution of the Board of Directors may be evidenced to the Trustee
by a copy thereof certified by the Secretary or an Assistant Secretary of the
Company;

              (c)     the Trustee may consult with counsel of its own
selection and any advice or Opinion of Counsel shall be full and complete
authorization and protection in respect of any action taken or omitted by it
hereunder in good faith and in accordance with such advice or Opinion of
Counsel;

              (d)     the Trustee shall be under no obligation to exercise
any of the rights or powers vested in it by this Indenture at the request,
order or direction of any of the Noteholders pursuant to the provisions of
this Indenture, unless such Noteholders shall have offered to the Trustee
reasonable security or indemnity against the costs, expenses and liabilities
which may be incurred therein or thereby;

              (e)     the Trustee shall not be bound to make any
investigation into the facts or matters stated in any resolution,
certificate, statement, instrument, opinion, report, notice, request,
direction, consent, order, bond, debenture or other paper or document, but
the Trustee, in its discretion, may make such further inquiry or
investigation into such facts or matters as it may see fit, and, if the
Trustee shall determine to make such further inquiry or investigation, it
shall be entitled to examine the books, records and premises of the Company,
personally or by agent or attorney; and

              (f)     the Trustee may execute any of the trusts or powers
hereunder or perform any duties hereunder either directly or by or through
agents or attorneys and the Trustee shall not be responsible for any
misconduct or negligence on the part of any agent or attorney appointed by it
with due care hereunder.

       SECTION 8.3.   NO RESPONSIBILITY FOR RECITALS, ETC.  The recitals
contained herein and in the Notes (except in the Trustee's certificate of
authentication) shall be taken as the statements of the Company, and the
Trustee assumes no responsibility for the correctness of the same.  The
Trustee makes no representations as to the validity or sufficiency of this
Indenture or of the Notes.  The Trustee shall not be accountable for the use
or application by the Company of any Notes or the proceeds of any Notes
authenticated and delivered by the Trustee in conformity with the provisions
of this Indenture.

       SECTION 8.4.   TRUSTEE, PAYING AGENTS, CONVERSION AGENTS OR REGISTRAR
MAY OWN NOTES.  The Trustee, any paying agent, any conversion agent or Note
registrar, in its individual or any other capacity, may become the owner or
pledgee of Notes with the same rights it would have if it were not Trustee,
paying agent, conversion agent or Note registrar.

       SECTION 8.5.   MONIES TO BE HELD IN TRUST.  Subject to the provisions
of Section 13.4 and Section 4.2, all monies received by the Trustee shall,
until used or applied as herein provided, be held in trust for the purposes
for which they were received.  Money held by the Trustee in trust hereunder
need not be segregated from other funds except to the extent required by law.
The Trustee shall be under no liability for interest on any money received
by it hereunder except as may be agreed in writing from time to time by the
Company and the Trustee.

       SECTION 8.6.   COMPENSATION AND EXPENSES OF TRUSTEE.  The Company
covenants and agrees to pay to the Trustee from time to time, and the Trustee
shall be entitled to, reasonable compensation for all services rendered by it
hereunder in any capacity (which shall not be limited by any provision of law
in regard to the compensation of a trustee of an express trust) as mutually
agreed to from time to time in writing between the


                                      -41-
<PAGE>

Company and the Trustee, and the Company will pay or reimburse the Trustee
upon its request for all reasonable expenses, disbursements and advances
reasonably incurred or made by the Trustee in accordance with any of the
provisions of this Indenture (including the reasonable compensation and the
expenses and disbursements of its counsel and of all Persons not regularly in
its employ) except any such expense, disbursement or advance as may arise
from its negligence, willful misconduct, recklessness or bad faith.  The
Company also covenants to indemnify the Trustee (or any officer, director or
employee of the Trustee), in any capacity under this Indenture and its agents
and any authenticating agent for, and to hold them harmless against, any and
all loss, liability, claim or expense incurred without negligence, willful
misconduct, recklessness or bad faith on the part of the Trustee or such
officers, directors, employees and agent or authenticating agent, as the case
may be, and arising out of or in connection with the acceptance or
administration of this trust or in any other capacity hereunder, including
the costs and expenses of defending themselves against any claim of liability
in the premises.  The obligations of the Company under this Section 8.6 to
compensate or indemnify the Trustee and to pay or reimburse the Trustee for
expenses, disbursements and advances shall be secured by a lien prior to that
of the Notes upon all property and funds held or collected by the Trustee as
such, except funds held in trust for the benefit of the holders of particular
Notes.  The obligation of the Company under this Section shall survive the
satisfaction and discharge of this Indenture.

       When the Trustee and its agents and any authenticating agent incur
expenses or render services after an Event of Default specified in Section
7.1(d) or (e) with respect to the Company occurs, the expenses and the
compensation for the services are intended to constitute expenses of
administration under any bankruptcy, insolvency or similar laws.

       SECTION 8.7.   OFFICERS' CERTIFICATE AS EVIDENCE.  Except as otherwise
provided in Section 8.1, whenever in the administration of the provisions of
this Indenture the Trustee shall deem it necessary or desirable that a matter
be proved or established prior to taking or omitting any action hereunder,
such matter (unless other evidence in respect thereof be herein specifically
prescribed) may, in the absence of negligence or willful misconduct on the
part of the Trustee, be deemed to be conclusively proved and established by
an Officers' Certificate delivered to the Trustee.

       SECTION 8.8.   CONFLICTING INTERESTS OF TRUSTEE.  If the Trustee has
or shall acquire a conflicting interest within the meaning of the Trust
Indenture Act, the Trustee shall either eliminate such interest or resign, to
the extent and in the manner provided by, and subject to the provisions of,
the Trust Indenture Act and this Indenture.

       SECTION 8.9.   ELIGIBILITY OF TRUSTEE.  There shall at all times be a
Trustee hereunder which shall be a Person that is eligible pursuant to the
Trust Indenture Act to act as such and has a combined capital and surplus of
at least $50,000,000 (or if such Person is a member of a bank holding company
system, its bank holding company shall have a combined capital and surplus of
at least $50,000,000).  If such Person publishes reports of condition at
least annually, pursuant to law or to the requirements of any supervising or
examining authority, then for the purposes of this Section the combined
capital and surplus of such Person shall be deemed to be its combined capital
and surplus as set forth in its most recent report of condition so published.
If at any time the Trustee shall cease to be eligible in accordance with the
provisions of this Section 8.9, it shall resign immediately in the manner and
with the effect hereinafter specified in this Article.

       SECTION 8.10.  RESIGNATION OR REMOVAL OF TRUSTEE.


                                      -42-
<PAGE>

              (a)     The Trustee may at any time resign by giving written
notice of such resignation to the Company and to the holders of Notes.  Upon
receiving such notice of resignation, the Company shall promptly appoint a
successor trustee by written instrument, in duplicate, executed by order of
the Board of Directors, one copy of which instrument shall be delivered to
the resigning Trustee and one copy to the successor trustee.  If no successor
trustee shall have been so appointed and have accepted appointment sixty (60)
days after the mailing of such notice of resignation to the Noteholders, the
resigning Trustee may, upon ten (10) business days' notice to the Company and
the Noteholders, appoint a successor identified in such notice or may
petition, at the expense of the Company, any court of competent jurisdiction
for the appointment of a successor trustee, or, if any Noteholder who has
been a bona fide holder of a Note or Notes for at least six (6) months may,
subject to the provisions of Section 7.9, on behalf of himself and all others
similarly situated, petition any such court for the appointment of a
successor trustee. Such court may thereupon, after such notice, if any, as it
may deem proper and prescribe, appoint a successor trustee.

              (b)     In case at any time any of the following shall occur:

                      (1)   the Trustee shall fail to comply with Section 8.8
              after written request therefor by the Company or by any Noteholder
              who has been a bona fide holder of a Note or Notes for at least
              six (6) months; or

                      (2)   the Trustee shall cease to be eligible in accordance
              with the provisions of Section 8.9 and shall fail to resign after
              written request therefor by the Company or by any such Noteholder;
              or

                      (3)   the Trustee shall become incapable of acting, or
              shall be adjudged a bankrupt or insolvent, or a receiver of the
              Trustee or of its property shall be appointed, or any public
              officer shall take charge or control of the Trustee or of its
              property or affairs for the purpose of rehabilitation,
              conservation or liquidation;

       then, in any such case, the Company may remove the Trustee and appoint a
successor trustee by written instrument, in duplicate, executed by order of the
Board of Directors, one copy of which instrument shall be delivered to the
Trustee so removed and one copy to the successor trustee, or, subject to the
provisions of Section 7.9, any Noteholder who has been a bona fide holder of a
Note or Notes for at least six (6) months may, on behalf of himself and all
others similarly situated, petition any court of competent jurisdiction for the
removal of the Trustee and the appointment of a successor trustee; provided,
however, that if no successor Trustee shall have been appointed and have
accepted appointment sixty (60) days after either the Company or the Noteholders
has removed the Trustee, the Trustee so removed may petition any court of
competent jurisdiction for an appointment of a successor trustee.  Such court
may thereupon, after such notice, if any, as it may deem proper and prescribe,
remove the Trustee and appoint a successor trustee.

              (c)     The holders of a majority in aggregate principal amount
of the Notes at the time outstanding may at any time remove the Trustee and
nominate a successor trustee which shall be deemed appointed as successor
trustee unless, within ten (10) days after notice to the Company of such
nomination, the Company objects thereto, in which case the Trustee so removed or
any Noteholder, or if such Trustee so removed or any Noteholder fails to act,
the Company, upon the terms and conditions and otherwise as in Section 8.10(a)
provided, may petition any court of competent jurisdiction for an appointment of
a successor trustee.


                                      -43-
<PAGE>

              (d)     Any resignation or removal of the Trustee and
appointment of a successor trustee pursuant to any of the provisions of this
Section 8.10 shall become effective upon acceptance of appointment by the
successor trustee as provided in Section 8.11.

       SECTION 8.11.  ACCEPTANCE BY SUCCESSOR TRUSTEE.  Any successor trustee
appointed as provided in Section 8.10 shall execute, acknowledge and deliver
to the Company and to its predecessor trustee an instrument accepting such
appointment hereunder, and thereupon the resignation or removal of the
predecessor trustee shall become effective and such successor trustee,
without any further act, deed or conveyance, shall become vested with all the
rights, powers, duties and obligations of its predecessor hereunder, with
like effect as if originally named as trustee herein; but, nevertheless, on
the written request of the Company or of the successor trustee, the trustee
ceasing to act shall, upon payment of any amount then due it pursuant to the
provisions of Section 8.6, execute and deliver an instrument transferring to
such successor trustee all the rights and powers of the trustee so ceasing to
act.  Upon request of any such successor trustee, the Company shall execute
any and all instruments in writing for more fully and certainly vesting in
and confirming to such successor trustee all such rights and powers.  Any
trustee ceasing to act shall, nevertheless, retain a lien upon all property
and funds held or collected by such trustee as such, except for funds held in
trust for the benefit of holders of particular Notes, to secure any amounts
then due it pursuant to the provisions of Section 8.6.

       No successor trustee shall accept appointment as provided in this
Section 8.11 unless, at the time of such acceptance, such successor trustee
shall be qualified under the provisions of Section 8.8 and be eligible under
the provisions of Section 8.9.

       Upon acceptance of appointment by a successor trustee as provided in
this Section 8.11, the Company (or the former trustee, at the written
direction of the Company) shall mail or cause to be mailed notice of the
succession of such trustee hereunder to the holders of Notes at their
addresses as they shall appear on the Note register.  If the Company fails to
mail such notice within ten (10) days after acceptance of appointment by the
successor trustee, the successor trustee shall cause such notice to be mailed
at the expense of the Company.

       SECTION 8.12.  SUCCESSION BY MERGER, ETC.  Any corporation into which
the Trustee may be merged or converted or with which it may be consolidated,
or any corporation resulting from any merger, conversion or consolidation to
which the Trustee shall be a party, or any corporation succeeding to all or
substantially all of the corporate trust business of the Trustee (including
any trust created by this Indenture), shall be the successor to the Trustee
hereunder without the execution or filing of any paper or any further act on
the part of any of the parties hereto, provided that in the case of any
corporation succeeding to all or substantially all of the corporate trust
business of the Trustee, such corporation shall be qualified under the
provisions of Section 8.8 and eligible under the provisions of Section 8.9.

       In case at the time such successor to the Trustee shall succeed to the
trusts created by this Indenture, any of the Notes shall have been
authenticated but not delivered, any such successor to the Trustee may adopt
the certificate of authentication of any predecessor trustee or
authenticating agent appointed by such predecessor trustee, and deliver such
Notes so authenticated; and in case at that time any of the Notes shall not
have been authenticated, any successor to the Trustee or any authenticating
agent appointed by such successor trustee may authenticate such Notes in the
name of the successor trustee; and in all such cases such certificates shall
have the full force that is provided in the Notes or in this Indenture;
provided, however, that the right to adopt the certificate of authentication
of any predecessor Trustee or authenticate Notes in the name of any
predecessor Trustee shall apply only to its successor or successors by
merger, conversion or consolidation.


                                      -44-
<PAGE>

       SECTION 8.13.  PREFERENTIAL COLLECTION OF CLAIMS.  If and when the
Trustee shall be or become a creditor of the Company (or any other obligor
upon the Notes), the Trustee shall be subject to the provisions of the Trust
Indenture Act regarding the collection of the claims against the Company (or
any such other obligor).

       SECTION 8.14.  TRUSTEE'S APPLICATION FOR INSTRUCTIONS FROM THE
COMPANY. Any application by the Trustee for written instructions from the
Company (other than with regard to any action proposed to be taken or omitted
to be taken by the Trustee that affects the rights of the holders of the
Notes or holders of Senior Indebtedness under this Indenture, including,
without limitation, under Article Four hereof) may, at the option of the
Trustee, set forth in writing any action proposed to be taken or omitted by
the Trustee under this Indenture and the date on and/or after which such
action shall be taken or such omission shall be effective.  The Trustee shall
not be liable for any action taken by, or omission of, the Trustee in
accordance with a proposal included in such application on or after the date
specified in such application (which date shall not be less than three (3)
Business Days after the date any officer of the Company actually receives
such application, unless any such officer shall have consented in writing to
any earlier date) unless prior to taking any such action (or the effective
date in the case of an omission), the Trustee shall have received written
instructions in response to such application specifying the action to be
taken or omitted.

                             ARTICLE NINE

                            THE NOTEHOLDERS

       SECTION 9.1.   ACTION BY NOTEHOLDERS.  Whenever in this Indenture it
is provided that the holders of a specified percentage in aggregate principal
amount of the Notes may take any action (including the making of any demand
or request, the giving of any notice, consent or waiver or the taking of any
other action), the fact that at the time of taking any such action, the
holders of such specified percentage have joined therein may be evidenced (a)
by any instrument or any number of instruments of similar tenor executed by
Noteholders in person or by agent or proxy appointed in writing, or (b) by
the record of the holders of Notes voting in favor thereof at any meeting of
Noteholders duly called and held in accordance with the provisions of Article
Ten, or (c) by a combination of such instrument or instruments and any such
record of such a meeting of Noteholders.  Whenever the Company or the Trustee
solicits the taking of any action by the holders of the Notes, the Company or
the Trustee may fix in advance of such solicitation, a date as the record
date for determining holders entitled to take such action.  The record date
shall be not more than fifteen (15) days prior to the date of commencement of
solicitation of such action.

       SECTION 9.2.   PROOF OF EXECUTION BY NOTEHOLDERS.  Subject to the
provisions of Sections 8.1, 8.2 and 10.5, proof of the execution of any
instrument by a Noteholder or its agent or proxy shall be sufficient if made
in accordance with such reasonable rules and regulations as may be prescribed
by the Trustee or in such manner as shall be satisfactory to the Trustee.
The holding of Notes shall be proved by the registry of such Notes or by a
certificate of the Note registrar.

       The record of any Noteholders' meeting shall be proved in the manner
provided in Section 10.6.

       SECTION 9.3.   WHO ARE DEEMED ABSOLUTE OWNERS.  The Company, the
Trustee, any paying agent, any conversion agent and any Note registrar may
deem the Person in whose name such Note shall be registered upon the Note
register to be, and may treat it as, the absolute owner of such Note (whether
or not such Note shall be overdue and notwithstanding any notation of
ownership or other writing thereon made by any Person other than the Company
or any Note registrar) for the purpose of receiving payment of or on


                                      -45-
<PAGE>

account of the principal of, premium, if any, and interest on such Note, for
conversion of such Note and for all other purposes; and neither the Company
nor the Trustee nor any paying agent nor any conversion agent nor any Note
registrar shall be affected by any notice to the contrary.  All such payments
so made to any holder for the time being, or upon his order, shall be valid,
and, to the extent of the sum or sums so paid, effectual to satisfy and
discharge the liability for monies payable upon any such Note.

       SECTION 9.4.   COMPANY-OWNED NOTES DISREGARDED.  In determining
whether the holders of the requisite aggregate principal amount of Notes have
concurred in any direction, consent, waiver or other action under this
Indenture, Notes which are owned by the Company or any other obligor on the
Notes or any Affiliate of the Company or any other obligor on the Notes shall
be disregarded and deemed not to be outstanding for the purpose of any such
determination; provided, however, that, for the purposes of determining
whether the Trustee shall be protected in relying on any such direction,
consent, waiver or other action, only Notes which a Responsible Officer knows
are so owned shall be so disregarded.  Notes so owned which have been pledged
in good faith may be regarded as outstanding for the purposes of this Section
9.4 if the pledgee shall establish to the satisfaction of the Trustee the
pledgee's right to vote such Notes and that the pledgee is not the Company,
any other obligor on the Notes or any Affiliate of the Company or any such
other obligor.  In the case of a dispute as to such right, any decision by
the Trustee taken upon the advice of counsel shall be full protection to the
Trustee.  Upon request of the Trustee, the Company shall furnish to the
Trustee promptly an Officers' Certificate listing and identifying all Notes,
if any, known by the Company to be owned or held by or for the account of any
of the above described Persons, and, subject to Section 8.1, the Trustee
shall be entitled to accept such Officers' Certificate as conclusive evidence
of the facts therein set forth and of the fact that all Notes not listed
therein are outstanding for the purpose of any such determination.

       SECTION 9.5.   REVOCATION OF CONSENTS; FUTURE HOLDERS BOUND.  At any
time prior to (but not after) the evidencing to the Trustee, as provided in
Section 9.1, of the taking of any action by the holders of the percentage in
aggregate principal amount of the Notes specified in this Indenture in
connection with such action, any holder of a Note which is shown by the
evidence to be included in the Notes the holders of which have consented to
such action may, by filing written notice with the Trustee at its Corporate
Trust Office and upon proof of holding as provided in Section 9.2, revoke
such action so far as concerns such Note.  Except as aforesaid, any such
action taken by the holder of any Note shall be conclusive and binding upon
such holder and upon all future holders and owners of such Note and of any
Notes issued in exchange or substitution  therefor, irrespective of whether
any notation in regard thereto is made upon such Note or any Note issued in
exchange or substitution therefor.

                              ARTICLE TEN

                         MEETINGS OF NOTEHOLDERS

       SECTION 10.1.  PURPOSE OF MEETINGS.  A meeting of Noteholders may be
called at any time and from time to time pursuant to the provisions of this
Article Ten for any of the following purposes:

              (1)     to give any notice to the Company or to the Trustee or to
       give any directions to the Trustee permitted under this Indenture, or to
       consent to the waiving of any default or Event of Default hereunder and
       its consequences, or to take any other action authorized to be taken by
       Noteholders pursuant to any of the provisions of Article Seven;

              (2)     to remove the Trustee and nominate a successor trustee
       pursuant to the provisions of Article Eight;


                                      -46-
<PAGE>

              (3)     to consent to the execution of an indenture or indentures
       supplemental hereto pursuant to the provisions of Section 11.2; or

              (4)     to take any other action authorized to be taken by or on
       behalf of the holders of any specified aggregate principal amount of the
       Notes under any other provision of this Indenture or under applicable
       law.

       SECTION 10.2.  CALL OF MEETINGS BY TRUSTEE.  The Trustee may at any
time call a meeting of Noteholders to take any action specified in Section
10.1, to be held at such time and at such place as the Trustee shall
determine.  Notice of every meeting of the Noteholders, setting forth the
time and the place of such meeting and in general terms the action proposed
to be taken at such meeting and the establishment of any record date pursuant
to Section 9.1, shall be mailed to holders of Notes at their addresses as
they shall appear on the Note register.  Such notice shall also be mailed to
the Company.  Such notices shall be mailed not less than twenty (20) nor more
than ninety (90) days prior to the date fixed for the meeting.

       Any meeting of Noteholders shall be valid without notice if the
holders of all Notes then outstanding are present in person or by proxy or if
notice is waived before or after the meeting by the holders of all Notes
outstanding, and if the Company and the Trustee are either present by duly
authorized representatives or have, before or after the meeting, waived
notice.

       SECTION 10.3.  CALL OF MEETINGS BY COMPANY OR NOTEHOLDERS.  In case at
any time the Company, pursuant to a resolution of its Board of Directors, or
the holders of at least ten percent (10%) in aggregate principal amount of
the Notes then outstanding, shall have requested the Trustee to call a
meeting of Noteholders, by written request setting forth in reasonable detail
the action proposed to be taken at the meeting, and the Trustee shall not
have mailed the notice of such meeting within twenty (20) days after receipt
of such request, then the Company or such Noteholders may determine the time
and the place for such meeting and may call such meeting to take any action
authorized in Section 10.1, by mailing notice thereof as provided in Section
10.2.

       SECTION 10.4.  QUALIFICATIONS FOR VOTING.  To be entitled to vote at
any meeting of Noteholders a person shall (a) be a holder of one or more
Notes on the record date pertaining to such meeting or (b) be a person
appointed by an instrument in writing as proxy by a holder of one or more
Notes on the record date pertaining to such meeting.  The only persons who
shall be entitled to be present or to speak at any meeting of Noteholders
shall be the persons entitled to vote at such meeting and their counsel and
any representatives of the Trustee and its counsel and any representatives of
the Company and its counsel.

       SECTION 10.5.  REGULATIONS.  Notwithstanding any other provisions of
this Indenture, the Trustee may make such reasonable regulations as it may
deem advisable for any meeting of Noteholders, in regard to proof of the
holding of Notes and of the appointment of proxies, and in regard to the
appointment and duties of inspectors of votes, the submission and examination
of proxies, certificates and other evidence of the right to vote, and such
other matters concerning the conduct of the meeting as it shall think fit.

       The Trustee shall, by an instrument in writing, appoint a temporary
chairman of the meeting, unless the meeting shall have been called by the
Company or by Noteholders as provided in Section 10.3, in which case the
Company or the Noteholders calling the meeting, as the case may be, shall in
like manner appoint a temporary chairman.  A permanent chairman and a
permanent secretary of the meeting shall be elected by vote of the holders of
a majority in principal amount of the Notes represented at the meeting and
entitled to vote at the meeting.


                                      -47-
<PAGE>

       Subject to the provisions of Section 9.4, at any meeting each
Noteholder or proxyholder shall be entitled to one vote for each $1,000
principal amount of Notes held or represented by him; provided, however, that
no vote shall be cast or counted at any meeting in respect of any Note
challenged as not outstanding and ruled by the chairman of the meeting to be
not outstanding.  The chairman of the meeting shall have no right to vote
other than by virtue of Notes held by him or instruments in writing as
aforesaid duly designating him as the proxy to vote on behalf of other
Noteholders.  Any meeting of Noteholders duly called pursuant to the
provisions of Section 10.2 or 10.3 may be adjourned from time to time by the
holders of a majority of the aggregate principal amount of Notes represented
at the meeting, whether or not constituting a quorum, and the meeting may be
held as so adjourned without further notice.

       SECTION 10.6.  VOTING.  The vote upon any resolution submitted to any
meeting of Noteholders shall be by written ballot on which shall be
subscribed the signatures of the holders of Notes or of their representatives
by proxy and the outstanding principal amount of the Notes held or
represented by them.  The permanent chairman of the meeting shall appoint two
inspectors of votes who shall count all votes cast at the meeting for or
against any resolution and who shall make and file with the secretary of the
meeting their verified written reports in duplicate of all votes cast at the
meeting.  A record in duplicate of the proceedings of each meeting of
Noteholders shall be prepared by the secretary of the meeting and there shall
be attached to said record the original reports of the inspectors of votes on
any vote by ballot taken thereat and affidavits by one or more persons having
knowledge of the facts setting forth a copy of the notice of the meeting and
showing that said notice was mailed as provided in Section 10.2.  The record
shall show the principal amount of the Notes voting in favor of or against
any resolution.  The record shall be signed and verified by the affidavits of
the permanent chairman and secretary of the meeting and one of the duplicates
shall be delivered to the Company and the other to the Trustee to be
preserved by the Trustee, the latter to have attached thereto the ballots
voted at the meeting.

       Any record so signed and verified shall be conclusive evidence of the
matters therein stated.

       SECTION 10.7.  NO DELAY OF RIGHTS BY MEETING.  Nothing contained in
this Article Ten shall be deemed or construed to authorize or permit, by
reason of any call of a meeting of Noteholders or any rights expressly or
impliedly conferred hereunder to make such call, any hindrance or delay in
the exercise of any right or rights conferred upon or reserved to the Trustee
or to the Noteholders under any of the provisions of this Indenture or of the
Notes.

                             ARTICLE ELEVEN

                          SUPPLEMENTAL INDENTURES

       SECTION 11.1.  SUPPLEMENTAL INDENTURES WITHOUT CONSENT OF NOTEHOLDERS.
The Company, when authorized by the resolutions of the Board of Directors,
and the Trustee may, from time to time, and at any time enter into an
indenture or indentures supplemental hereto for one or more of the following
purposes:

              (a)     make provision with respect to the conversion rights of
the holders of Notes pursuant to the requirements of Section 15.6 and the
redemption obligations of the Company pursuant to the requirements of Section
3.5(e);

              (b)     subject to Article Four, to convey, transfer, assign,
mortgage or pledge to the Trustee as security for the Notes, any property or
assets;


                                      -48-
<PAGE>

              (c)     to evidence the succession of another Person to the
Company, or successive successions, and the assumption by the successor
Person of the covenants, agreements and obligations of the Company pursuant
to Article Twelve;

              (d)     to add to the covenants of the Company such further
covenants, restrictions or conditions as the Board of Directors and the
Trustee shall consider to be for the benefit of the holders of Notes, and to
make the occurrence, or the occurrence and continuance, of a default in any
such additional covenants, restrictions or conditions a default or an Event
of Default permitting the enforcement of all or any of the several remedies
provided in this Indenture as herein set forth; provided, however, that in
respect of any such additional covenant, restriction or condition, such
supplemental indenture may provide for a particular period of grace after
default (which period may be shorter or longer than that allowed in the case
of other defaults) or may provide for an immediate enforcement upon such
default or may limit the remedies available to the Trustee upon such default;

              (e)     to provide for the issuance under this Indenture of
Notes in coupon form (including Notes registrable as to principal only) and
to provide for exchangeability of such Notes with the Notes issued hereunder
in fully registered form and to make all appropriate changes for such purpose;

              (f)     to cure any ambiguity or to correct or supplement any
provision contained herein or in any supplemental indenture that may be
defective or inconsistent with any other provision contained herein or in any
supplemental indenture, or to make such other provisions in regard to matters
or questions arising under this Indenture that shall not materially adversely
affect the interests of the holders of the Notes;

              (g)     to evidence and provide for the acceptance of
appointment hereunder by a successor Trustee with respect to the Notes; or

              (h)     to modify, eliminate or add to the provisions of this
Indenture to such extent as shall be necessary to effect the qualifications
of this Indenture under the Trust Indenture Act, or under any similar federal
statute hereafter enacted.

       Upon the written request of the Company, accompanied by a copy of the
resolutions of the Board of Directors certified by its Secretary or Assistant
Secretary authorizing the execution of any supplemental indenture, the
Trustee is hereby authorized to join with the Company in the execution of any
such supplemental indenture, to make any further appropriate agreements and
stipulations that may be therein contained and to accept the conveyance,
transfer and assignment of any property thereunder, but the Trustee shall not
be obligated to, but may in its discretion, enter into any supplemental
indenture that affects the Trustee's own rights, duties or immunities under
this Indenture or otherwise.

       Any supplemental indenture authorized by the provisions of this
Section 11.1 may be executed by the Company and the Trustee without the
consent of the holders of any of the Notes at the time outstanding,
notwithstanding any of the provisions of Section 11.2.

       Notwithstanding any other provision of the Indenture or the Notes, the
Registration Rights Agreement and the obligation to pay Liquidated Damages
thereunder may be amended, modified or waived in accordance with the
provisions of the Registration Rights Agreement.

       SECTION 11.2.  SUPPLEMENTAL INDENTURE WITH CONSENT OF NOTEHOLDERS.
With the consent (evidenced as provided in Article Nine) of the holders of
not less than a majority in aggregate principal amount of the


                                      -49-
<PAGE>

Notes at the time outstanding, the Company, when authorized by the
resolutions of the Board of Directors, and the Trustee may, from time to time
and at any time, enter into an indenture or indentures supplemental hereto
for the purpose of adding any provisions to or changing in any manner or
eliminating any of the provisions of this Indenture or any supplemental
indenture or of modifying in any manner the rights of the holders of the
Notes; provided, however, that no such supplemental indenture shall (i)
extend the fixed maturity of any Note, or reduce the rate or extend the time
of payment of interest thereon, or reduce the principal amount thereof or
premium, if any, thereon, or reduce any amount payable on redemption thereof,
or impair the right of any Noteholder to institute suit for the payment
thereof, or make the principal thereof or interest or premium, if any,
thereon payable in any coin or currency other than that provided in the
Notes, or modify the provisions of this Indenture with respect to the
subordination of the Notes in a manner adverse to the Noteholders in any
material respect, or change the obligation of the Company to redeem any Note
upon the happening of a Fundamental Change in a manner adverse to the holder
of Notes, or impair the right to convert the Notes into Common Stock subject
to the terms set forth herein, including Section 15.6, in each case, without
the consent of the holder of each Note so affected, or (ii) reduce the
aforesaid percentage of Notes, the holders of which are required to consent
to any such supplemental indenture, without the consent of the holders of all
Notes then outstanding.

       Upon the written request of the Company, accompanied by a copy of the
resolutions of the Board of Directors certified by its Secretary or Assistant
Secretary authorizing the execution of any such supplemental indenture, and
upon the filing with the Trustee of evidence of the consent of Noteholders as
aforesaid, the Trustee shall join with the Company in the execution of such
supplemental indenture unless such supplemental indenture affects the
Trustee's own rights, duties or immunities under this Indenture or otherwise,
in which case the Trustee may in its discretion, but shall not be obligated
to, enter into such supplemental indenture.

       It shall not be necessary for the consent of the Noteholders under
this Section 11.2 to approve the particular form of any proposed supplemental
indenture, but it shall be sufficient if such consent shall approve the
substance thereof.

       Section 11.3.  EFFECT OF SUPPLEMENTAL INDENTURE.  Any supplemental
indenture executed pursuant to the provisions of this Article Eleven shall
comply with the Trust Indenture Act, as then in effect, provided that this
Section 11.3 shall not require such supplemental indenture or the Trustee to
be qualified under the Trust Indenture Act prior to the time such
qualification is in fact required under the terms of the Trust Indenture Act
or the Indenture has been qualified under the Trust Indenture Act, nor shall
it constitute any admission or acknowledgment by any party to such
supplemental indenture that any such qualification is required prior to the
time such qualification is in fact required under the terms of the Trust
Indenture Act or the Indenture has been qualified under the Trust Indenture
Act.  Upon the execution of any supplemental indenture pursuant to the
provisions of this Article Eleven, this Indenture shall be and be deemed to
be modified and amended in accordance therewith and the respective rights,
limitation of rights, obligations, duties and immunities under this Indenture
of the Trustee, the Company and the holders of Notes shall thereafter be
determined, exercised and enforced hereunder, subject in all respects to such
modifications and amendments and all the terms and conditions of any such
supplemental indenture shall be and be deemed to be part of the terms and
conditions of this Indenture for any and all purposes.

       Section 11.4.  NOTATION ON NOTES.  Notes authenticated and delivered
after the execution of any supplemental indenture pursuant to the provisions
of this Article Eleven may bear a notation in form approved by the Trustee as
to any matter provided for in such supplemental indenture.  If the Company or
the Trustee shall so determine, new Notes so modified as to conform, in the
opinion of the Trustee and the Board of

                                     -50-

<PAGE>

Directors, to any modification of this Indenture contained in any such
supplemental indenture may, at the Company's expense, be prepared and
executed by the Company, authenticated by the Trustee (or an authenticating
agent duly appointed by the Trustee pursuant to Section 16.11) and delivered
in exchange for the Notes then outstanding, upon surrender of such Notes then
outstanding.

       Section 11.5.  EVIDENCE OF COMPLIANCE OF SUPPLEMENTAL INDENTURE TO BE
FURNISHED TO TRUSTEE.  Prior to entering into any supplemental indenture, the
Trustee may request an Officers' Certificate and an Opinion of Counsel as
conclusive evidence that any supplemental indenture executed pursuant hereto
complies with the requirements of this Article Eleven.

                                   ARTICLE TWELVE

                 CONSOLIDATION, MERGER, SALE, CONVEYANCE AND LEASE

       Section 12.1.  COMPANY MAY CONSOLIDATE, ETC ON CERTAIN TERMS.  Subject
to the provisions of Section 12.2, nothing contained in this Indenture or in
any of the Notes shall prevent any consolidation or merger of the Company
with or into any other Person or Persons (whether or not affiliated with the
Company), or successive consolidations or mergers in which the Company or its
successor or successors shall be a party or parties, or shall prevent any
sale, conveyance or lease (or successive sales, conveyances or leases) of all
or substantially all of the property of the Company, to any other Person
(whether or not affiliated with the Company), authorized to acquire and
operate the same and that shall be organized under the laws of the United
States of America, any state thereof or the District of Columbia; provided,
however, that upon any such consolidation, merger, sale, conveyance or lease,
the due and punctual payment of the principal of and premium, if any, and
interest (including Liquidated Damages, if any) on all of the Notes,
according to their tenor and the due and punctual performance and observance
of all of the covenants and conditions of this Indenture to be performed by
the Company, shall be expressly assumed, by supplemental indenture
satisfactory in form to the Trustee, executed and delivered to the Trustee by
the Person (if other than the Company) formed by such consolidation, or into
which the Company shall have been merged, or by the Person that shall have
acquired or leased such property, and such supplemental indenture shall
provide for the applicable conversion rights set forth in Section 15.6.

       Section 12.2.  SUCCESSOR CORPORATION TO BE SUBSTITUTED.  In case of
any such consolidation, merger, sale, conveyance or lease and upon the
assumption by the successor Person, by supplemental indenture, executed and
delivered to the Trustee and satisfactory in form to the Trustee, of the due
and punctual payment of the principal of and premium, if any, and interest on
all of the Notes and the due and punctual performance of all of the covenants
and conditions of this Indenture to be performed by the Company, such
successor Person shall succeed to and be substituted for the Company, with
the same effect as if it had been named herein as the party of this first
part.  Such successor Person thereupon may cause to be signed, and may issue
either in its own name or in the name of Lattice Semiconductor Corporation
any or all of the Notes, issuable hereunder that theretofore shall not have
been signed by the Company and delivered to the Trustee; and, upon the order
of such successor Person instead of the Company and subject to all the terms,
conditions and limitations in this Indenture prescribed, the Trustee shall
authenticate and shall deliver, or cause to be authenticated and delivered,
any Notes that previously shall have been signed and delivered by the
officers of the Company to the Trustee for authentication, and any Notes that
such successor Person thereafter shall cause to be signed and delivered to
the Trustee for that purpose.  All the Notes so issued shall in all respects
have the same legal rank and benefit under this Indenture as the Notes
theretofore or thereafter issued in accordance with the terms of this
Indenture as though all of such Notes had been issued at the date of the
execution hereof. In the event of any such consolidation, merger, sale,
conveyance or lease, the Person

                                     -51-

<PAGE>

named as the "Company" in the first paragraph of this Indenture or any
successor that shall thereafter have become such in the manner prescribed in
this Article Twelve may be dissolved, wound up and liquidated at any time
thereafter and such Person shall be released from its liabilites as obligor
and maker of the Notes and from its obligations under this Indenture.

       In case of any such consolidation, merger, sale, conveyance or lease,
such changes in phraseology and form (but not in substance) may be made in
the Notes thereafter to be issued as may be appropriate.

       Section 12.3.  OPINION OF COUNSEL TO BE GIVEN TRUSTEE.  The Trustee
shall receive an Officers' Certificate and an Opinion of Counsel as
conclusive evidence that any such consolidation, merger, sale, conveyance or
lease and any such assumption complies with the provisions of this Article
Twelve.

                                  ARTICLE THIRTEEN

                      SATISFACTION AND DISCHARGE OF INDENTURE

       Section 13.1.  DISCHARGE OF INDENTURE.  When (a) the Company shall
deliver to the Trustee for cancellation all Notes theretofore authenticated
(other than any Notes that have been destroyed, lost or stolen and in lieu of
or in substitution for which other Notes shall have been authenticated and
delivered) and not theretofore canceled, or (b) all the Notes not theretofore
canceled or delivered to the Trustee for cancellation shall have become due
and payable, or are by their terms to become due and payable within one year
or are to be called for redemption within one year under arrangements
satisfactory to the Trustee for the giving of notice of redemption, and the
Company shall deposit with the Trustee, in trust, funds sufficient to pay at
maturity or upon redemption of all of the Notes (other than any Notes that
shall have been mutilated, destroyed, lost or stolen and in lieu of or in
substitution for which other Notes shall have been authenticated and
delivered) not theretofore canceled or delivered to the Trustee for
cancellation, including principal and premium, if any, and interest due or to
become due to such date of maturity or redemption date, as the case may be,
accompanied by a verification report, as to the sufficiency of the deposited
amount, from an independent certified accountant or other financial
professional satisfactory to the Trustee, and if the Company shall also pay
or cause to be paid all other sums payable hereunder by the Company, then
this Indenture shall cease to be of further effect (except as to (i)
remaining rights of registration of transfer, substitution and exchange and
conversion of Notes, (ii) rights hereunder of Noteholders to receive payments
of principal of and premium, if any, and interest on, the Notes and the other
rights, duties and obligations of Noteholders, as beneficiaries hereof with
respect to the amounts, if any, so deposited with the Trustee and (iii) the
rights, obligations and immunities of the Trustee hereunder), and the
Trustee, on written demand of the Company accompanied by an Officers'
Certificate and an Opinion of Counsel as required by Section 16.5 and at the
cost and expense of the Company, shall execute proper instruments
acknowledging satisfaction of and discharging this Indenture; the Company,
however, hereby agrees to reimburse the Trustee for any costs or expenses
thereafter reasonably and properly incurred by the Trustee and to compensate
the Trustee for any services thereafter reasonably and properly rendered by
the Trustee in connection with this Indenture or the Notes.

       Section 13.2.  DEPOSITED MONIES TO BE HELD IN TRUST BY TRUSTEE.
Subject to Section 13.4, all monies deposited with the Trustee pursuant to
Section 13.1, provided such deposit was not in violation of Article Four,
shall be held in trust for the sole benefit of the Noteholders and not to be
subject to the subordination provisions of Article Four, and such monies
shall be applied by the Trustee to the payment, either directly or through
any paying agent (including the Company if acting as its own paying agent),
to the holders of the

                                     -52-

<PAGE>

particular Notes for the payment or redemption of which such monies have been
deposited with the Trustee, of all sums due and to become due thereon for
principal and interest and premium, if any.

       Section 13.3.  PAYING AGENT TO REPAY MONIES HELD.  Upon the
satisfaction and discharge of this Indenture, all monies then held by any
paying agent of the Notes (other than the Trustee) shall, upon written
request of the Company, be repaid to it or paid to the Trustee, and thereupon
such paying agent shall be released from all further liability with respect
to such monies.

       Section 13.4.  RETURN OF UNCLAIMED MONIES.  Subject to the
requirements of applicable law, any monies deposited with or paid to the
Trustee for payment of the principal of, premium, if any, or interest on
Notes and not applied but remaining unclaimed by the holders of Notes for two
years after the date upon which the principal of, premium, if any, or
interest on such Notes, as the case may be, shall have become due and
payable, shall be repaid to the Company by the Trustee on demand and all
liability of the Trustee shall thereupon cease with respect to such monies;
and the holder of any of the Notes shall thereafter look only to the Company
for any payment that such holder may be entitled to collect unless an
applicable abandoned property law designates another Person.

       Section 13.5.  REINSTATEMENT.  If the Trustee or the paying agent is
unable to apply any money in accordance with Section 13.2 by reason of any
order or judgment of any court or governmental authority enjoining,
restraining or otherwise prohibiting such application, the Company's
obligations under this Indenture and the Notes shall be revived and
reinstated as though no deposit had occurred pursuant to Section 13.1 until
such time as the Trustee or the paying agent is permitted to apply all such
money in accordance with Section 13.2; provided, however, that if the Company
makes any payment of interest on or principal of any Note following the
reinstatement of its obligations, the Company shall be subrogated to the
rights of the holders of such Notes to receive such payment from the money
held by the Trustee or paying agent.

                                  ARTICLE FOURTEEN

                             IMMUNITY OF INCORPORATORS,
                        STOCKHOLDERS, OFFICERS AND DIRECTORS

       Section 14.1.  INDENTURE AND NOTES SOLELY CORPORATE OBLIGATIONS.  No
recourse for the payment of the principal of or premium, if any, or interest
on any Note, or for any claim based thereon or otherwise in respect thereof,
and no recourse under or upon any obligation, covenant or agreement of the
Company in this Indenture or in any supplemental indenture or in any Note, or
because of the creation of any indebtedness represented thereby, shall be had
against any incorporator, stockholder, employee, agent, officer, director or
subsidiary, as such, past, present or future, of the Company or of any
successor corporation, either directly or through the Company or any
successor corporation, whether by virtue of any constitution, statute or rule
of law, or by the enforcement of any assessment or penalty or otherwise; it
being expressly understood that all such liability is hereby expressly waived
and released as a condition of, and as a consideration for, the execution of
this Indenture and the issue of the Notes.

                                     -53-

<PAGE>

                                  ARTICLE FIFTEEN

                                CONVERSION OF NOTES

       Section 15.1.  RIGHT TO CONVERT.  Subject to and upon compliance with
the provisions of this Indenture, including, without limitation, Article
Four, the holder of any Note shall have the right, at its option, at any time
after the original issuance of the Notes hereunder through the close of
business on the final maturity date of the Notes (except that, with respect
to any Note or portion of a Note that shall be called for redemption, such
right shall terminate, except as provided in Section 15.2, Section 3.2 or
Section 3.4, at the close of business on the Business Day next preceding the
date fixed for redemption of such Note or portion of a Note unless the
Company shall default in payment due upon redemption thereof) to convert the
principal amount of any such Note, or any portion of such principal amount
which is $1,000 or an integral multiple thereof, into that number of fully
paid and non-assessable shares of Common Stock (as such shares shall then be
constituted) obtained by dividing the principal amount of the Note or portion
thereof surrendered for conversion by the Conversion Price in effect at such
time, by surrender of the Note so to be converted in whole or in part in the
manner provided, together with any required funds, in Section 15.2.  A Note
in respect of which a holder is exercising its option to require redemption
upon a Fundamental Change pursuant to Section 3.5 may be converted only if
such holder withdraws its election to exercise in accordance with Section
3.5.  A holder of Notes is not entitled to any rights of a holder of Common
Stock until such holder has converted his Notes to Common Stock, and only to
the extent such Notes are deemed to have been converted to Common Stock under
this Article Fifteen.

       Section 15.2.  EXERCISE OF CONVERSION PRIVILEGE; ISSUANCE OF COMMON
STOCK ON CONVERSION; NO ADJUSTMENT FOR INTEREST OR DIVIDENDS.  In order to
exercise the conversion privilege with respect to any Note in certificated
form, the holder of any such Note to be converted in whole or in part shall
surrender such Note, duly endorsed, at an office or agency maintained by the
Company pursuant to Section 5.2, accompanied by the funds, if any, required
by the penultimate paragraph of this Section 15.2, and shall give written
notice of conversion in the form provided on the Notes (or such other notice
which is acceptable to the Company) to the office or agency that the holder
elects to convert such Note or the portion thereof specified in said notice.
Such notice shall also state the name or names (with address or addresses) in
which the certificate or certificates for shares of Common Stock which shall
be issuable on such conversion shall be issued, and shall be accompanied by
transfer taxes, if required pursuant to Section 15.7.  Each such Note
surrendered for conversion shall, unless the shares issuable on conversion
are to be issued in the same name as the registration of such Note, be duly
endorsed by, or be accompanied by instruments of transfer in form
satisfactory to the Company duly executed by, the holder or his duly
authorized attorney.

       In order to exercise the conversion privilege with respect to any
interest in a Global Note, the beneficial holder must complete, or cause to
be completed, the appropriate instruction form for conversion pursuant to the
Depository's book-entry conversion program, deliver, or cause to be
delivered, by book-entry delivery an interest in such Global Note, furnish
appropriate endorsements and transfer documents if required by the Company or
the Trustee or conversion agent, and pay the funds, if any, required by this
Section 15.2 and any transfer taxes if required pursuant to Section 15.7.

       As promptly as practicable after satisfaction of the requirements for
conversion set forth above, subject to compliance with any restrictions on
transfer if shares issuable on conversion are to be issued in a name other
than that of the Noteholder (as if such transfer were a transfer of the Note
or Notes (or portion thereof) so converted), the Company shall issue and
shall deliver to such Noteholder at the office or agency maintained by the
Company for such purpose pursuant to Section 5.2, a certificate or
certificates for the

                                     -54-

<PAGE>

number of full shares of Common Stock issuable upon the conversion of such
Note or portion thereof as determined by the Company in accordance with the
provisions of this Article Fifteen and a check or cash in respect of any
fractional interest in respect of a share of Common Stock arising upon such
conversion, calculated by the Company as provided in Section 15.3. In case
any Note of a denomination greater than $1,000 shall be surrendered for
partial conversion, and subject to Section 2.3, the Company shall execute and
the Trustee shall authenticate and deliver to the holder of the Note so
surrendered, without charge to him, a new Note or Notes in authorized
denominations in an aggregate principal amount equal to the unconverted
portion of the surrendered Note.

       Each conversion shall be deemed to have been effected as to any such
Note (or portion thereof) on the date on which the requirements set forth
above in this Section 15.2 have been satisfied as to such Note (or portion
thereof), and the Person in whose name any certificate or certificates for
shares of Common Stock shall be issuable upon such conversion shall be deemed
to have become on said date the holder of record of the shares represented
thereby; provided, however, that any such surrender on any date when the
stock transfer books of the Company shall be closed shall constitute the
Person in whose name the certificates are to be issued as the record holder
thereof for all purposes on the next succeeding day on which such stock
transfer books are open, but such conversion shall be at the Conversion Price
in effect on the date upon which such Note shall be surrendered.

       No adjustment in respect of interest on any Note converted or
dividends on any shares issued upon conversion of such Note will be made upon
any conversion except as set forth in the next sentence.  If this Note (or
portion hereof) is surrendered for conversion during the period from the
close of business on any record date for the payment of interest to the close
of business on the Business Day preceding the following interest payment date
and either (x) has not been called for redemption on a redemption date that
occurs during such period or (y) is not to be redeemed in connection with a
Fundamental Change on a Repurchase Date that occurs during such period, this
Note (or portion hereof being converted) must be accompanied by an amount, in
New York Clearing House funds or other funds acceptable to the Company, equal
to the interest payable on such interest payment date on the principal amount
being converted; provided, however, that no such payment shall be required if
there shall exist at the time of conversion a default in the payment of
interest on the Notes.

       Upon the conversion of an interest in a Global Note, the Trustee (or
other conversion agent appointed by the Company), or the Custodian at the
direction of the Trustee (or other conversion agent appointed by the
Company), shall make a notation on such Global Note as to the reduction in
the principal amount represented thereby.  The Company shall notify the
Trustee in writing of any conversions of Notes effected through any
conversion agent other than the Trustee.

       Section 15.3.  CASH PAYMENTS IN LIEU OF FRACTIONAL SHARES.  No
fractional shares of Common Stock or scrip representing fractional shares
shall be issued upon conversion of Notes.  If more than one Note shall be
surrendered for conversion at one time by the same holder, the number of full
shares that shall be issuable upon conversion shall be computed on the basis
of the aggregate principal amount of the Notes (or specified portions thereof
to the extent permitted hereby) so surrendered.  If any fractional share of
stock would be issuable upon the conversion of any Note or Notes, the Company
shall make an adjustment and payment therefor in cash at the current market
price thereof to the holder of Notes.  The current market price of a share of
Common Stock shall be the Closing Price on the last Business Day immediately
preceding the day on which the Notes (or specified portions thereof) are
deemed to have been converted.

                                     -55-

<PAGE>

       Section 15.4.  CONVERSION PRICE. The conversion price shall be as
specified in the form of Note (herein called the "Conversion Price") attached
as Exhibit A hereto, subject to adjustment as provided in this Article
Fifteen.

       Section 15.5.  ADJUSTMENT OF CONVERSION PRICE.  The Conversion Price
shall be adjusted from time to time by the Company as follows:

              (a)     In case the Company shall hereafter pay a dividend or
make a distribution to all holders of the outstanding Common Stock in shares
of Common Stock, the Conversion Price shall be reduced so that the same shall
equal the price determined by multiplying the Conversion Price in effect at
the opening of business on the date following the date fixed for the
determination of stockholders entitled to receive such dividend or other
distribution by a fraction, the numerator of which shall be the number of
shares of the Common Stock outstanding at the close of business on the date
fixed for such determination, and the denominator of which shall be the sum
of such number of shares and the total number of shares constituting such
dividend or other distribution, such reduction to become effective
immediately after the opening of business on the day following the date fixed
for such determination.  For the purpose of this paragraph (a), the number of
shares of Common Stock at any time outstanding shall not include shares held
in the treasury of the Company.  The Company will not pay any dividend or
make any distribution on shares of Common Stock held in the treasury of the
Company.  If any dividend or distribution of the type described in this
Section 15.5(a) is declared but not so paid or made, the Conversion Price
shall again be adjusted to the Conversion Price that would then be in effect
if such dividend or distribution had not been declared.

              (b)     In case the Company shall issue rights or warrants to
all holders of its outstanding shares of Common Stock entitling them (for a
period expiring within forty-five (45) days after the date fixed for
determination of stockholders entitled to receive such rights or warrants) to
subscribe for or purchase shares of Common Stock at a price per share less
than the Current Market Price (as defined below) on the date fixed for
determination of stockholders entitled to receive such rights or warrants,
the Conversion Price shall be adjusted so that the same shall equal the price
determined by multiplying the Conversion Price in effect immediately prior to
the date fixed for determination of stockholders entitled to receive such
rights or warrants by a fraction, the numerator of which shall be the number
of shares of Common Stock outstanding at the close of business on the date
fixed for determination of stockholders entitled to receive such rights or
warrants plus the number of shares that the aggregate offering price of the
total number of shares so offered would purchase at such Current Market
Price, and the denominator of which shall be the number of shares of Common
Stock outstanding on the date fixed for determination of stockholders
entitled to receive such rights or warrants plus the total number of
additional shares of Common Stock offered for subscription or purchase.  Such
adjustment shall be successively made whenever any such rights or warrants
are issued, and shall become effective immediately after the opening of
business on the day following the date fixed for determination of
stockholders entitled to receive such rights or warrants.  To the extent that
shares of Common Stock are not delivered after the expiration of such rights
or warrants, the Conversion Price shall be readjusted to the Conversion Price
that would then be in effect had the adjustments made upon the issuance of
such rights or warrants been made on the basis of delivery of only the number
of shares of Common Stock actually delivered.  In the event that such rights
or warrants are not so issued, the Conversion Price shall again be adjusted
to be the Conversion Price that would then be in effect if uch date fixed for
the determination of stockholders entitled to receive such rights or warrants
had not been fixed.  In determining whether any rights or warrants entitle
the holders to subscribe for or purchase shares of Common Stock at less than
such Current Market Price, and in determining the aggregate offering price of
such shares of Common Stock, there shall be taken into account any
consideration received by the Company for such rights or warrants and any
amount

                                     -56-

<PAGE>

payable on exercise or conversion thereof, the value of such consideration,
if other than cash, to be determined by the Board of Directors.

              (c)     In case outstanding shares of Common Stock shall be
subdivided into a greater number of shares of Common Stock, the Conversion
Price in effect at the opening of business on the day following the day upon
which such subdivision becomes effective shall be proportionately reduced,
and conversely, in case outstanding shares of Common Stock shall be combined
into a smaller number of shares of Common Stock, the Conversion Price in
effect at the opening of business on the day following the day upon which
such combination becomes effective shall be proportionately increased, such
reduction or increase, as the case may be, to become effective immediately
after the opening of business on the day following the day upon which such
subdivision or combination becomes effective.

              (d)     In case the Company shall, by dividend or otherwise,
distribute to all holders of its Common Stock shares of any class of capital
stock of the Company (other than any dividends or distributions to which
Section 15.5(a) applies) or evidences of its indebtedness or assets
(including securities, but excluding any rights or warrants referred to in
Section 15.5(b), and excluding any dividend or distribution (x) paid
exclusively in cash or (y) referred to in Section 15.5(a) (any of the
foregoing hereinafter in this Section 15.5(d) called the "Securities")),
then, in each such case (unless the Company elects to reserve such Securities
for distribution to the Noteholders upon the conversion of the Notes so that
any such holder converting Notes will receive upon such conversion, in
addition to the shares of Common Stock to which such holder is entitled, the
amount and kind of such Securities which such holder would have received if
such holder had converted its Notes into Common Stock immediately prior to
the Record Date (as defined in Section 15.5(h)(4) for such distribution of
the Securities)), the Conversion Price shall be reduced so that the same
shall be equal to the price determined by multiplying the Conversion Price in
effect on the Record Date with respect to such distribution by a fraction,
the numerator of which shall be the Current Market Price per share of the
Common Stock on such Record Date less the fair market value (as determined by
the Board of Directors, whose determination shall be conclusive, and
described in a resolution of the Board of Directors) on the Record Date of
the portion of the Securities so distributed applicable to one share of
Common Stock and the denominator of which shall be the Current Market Price
per share of the Common Stock, such reduction to become effective immediately
prior to the opening of business on the day following such Record Date;
provided, however, that in the event the then fair market value (as so
determined) of the portion of the Securities so distributed applicable to one
share of Common Stock is equal to or greater than the Current Market Price of
the Common Stock on the Record Date, in lieu of the foregoing adjustment,
adequate provision shall be made so that each Noteholder shall have the right
to receive upon conversion the amount of Securities such holder would have
received had such holder converted each Note on the Record Date.  In the
event that such dividend or distribution is not so paid or made, the
Conversion Price shall again be adjusted to be the Conversion Price that
would then be in effect if such dividend or distribution had not been
declared.  If the Board of Directors determines the fair market value of any
distribution for purposes of this Section 15.5(d) by reference to the actual
or when issued trading market for any securities, it must in doing so
consider the prices in such market over the same period used in computing the
Current Market Price of the Common Stock.

       Under the provisions of the Company's Preferred Shares Rights Plan
(the "Rights Plan"), upon conversion of the Notes into Common Stock, to the
extent that the Rights Plan is still in effect upon such conversion, the
holders of Notes will receive, in addition to the Common Stock, the rights
described therein (whether or not the rights have separated from the Common
Stock at the time of conversion), subject to the limitations set forth in the
Rights Plan.

                                     -57-

<PAGE>

       Rights or warrants distributed by the Company to all holders of Common
Stock entitling the holders thereof to subscribe for or purchase shares of
the Company's capital stock (either initially or under certain
circumstances), which rights or warrants, until the occurrence of a specified
event or events ("Trigger Event"): (i) are deemed to be transferred with such
shares of Common Stock; (ii) are not exercisable; and (iii) are also issued
in respect of future issuances of Common Stock, shall be deemed not to have
been distributed for purposes of this Section 15.5 (and no adjustment to the
Conversion Price under this Section 15.5 will be required) until the
occurrence of the earliest Trigger Event, whereupon such rights and warrants
shall be deemed to have been distributed and an appropriate adjustment (if
any is required) to the Conversion Price shall be made under this Section
15.5(d).  If any such right or warrant, including any such existing rights or
warrants distributed prior to the date of this Indenture, are subject to
events, upon the occurrence of which such rights or warrants become
exercisable to purchase different securities, evidences of indebtedness or
other assets, then the date of the occurrence of any and each such event
shall be deemed to be the date of distribution and record date with respect
to new rights or warrants with such rights (and a termination or expiration
of the existing rights or warrants without exercise by any of the holders
thereof).  In addition, in the event of any distribution (or deemed
distribution) of rights or warrants, or any Trigger Event or other event (of
the type described in the preceding sentence) with respect thereto that was
counted for purposes of calculating a distribution amount for which an
adjustment to the Conversion Price under this Section 15.5 was made, (1) in
the case of any such rights or warrants that shall all have been redeemed or
repurchased without exercise by any holders thereof, the Conversion Price
shall be readjusted upon such final redemption r repurchase to give effect to
such distribution or Trigger Event, as the case may be, as though it were a
cash distribution, equal to the per share redemption or repurchase price
received by a holder or holders of Common Stock with respect to such rights
or warrants (assuming such holder had retained such rights or warrants), made
to all holders of Common Stock as of the date of such redemption or
repurchase, and (2) in the case of such rights or warrants that shall have
expired or been terminated without exercise by any holders thereof, the
Conversion Price shall be readjusted as if such rights and warrants had not
been issued.

       No adjustment of the Conversion Price shall be made pursuant to this
Section 15.5(d) in respect of rights or warrants distributed or deemed
distributed on any Trigger Event to the extent that such rights or warrants
are actually distributed, or reserved by the Company for distribution to
holders of Notes upon conversion by such holders of Notes to Common Stock.

       For purposes of this Section 15.5(d) and Sections 15.5(a) and (b), any
dividend or distribution to which this Section 15.5(d) is applicable that
also includes shares of Common Stock, or rights or warrants to subscribe for
or purchase shares of Common Stock (or both), shall be deemed instead to be
(1) a dividend or distribution of the evidences of indebtedness, assets or
shares of capital stock other than such shares of Common Stock or rights or
warrants (and any Conversion Price reduction required by this Section 15.5(d)
with respect to such dividend or distribution shall then be made) immediately
followed by (2) a dividend or distribution of such shares of Common Stock or
such rights or warrants (and any further Conversion Price reduction required
by Sections 15.5(a) and (b) with respect to such dividend or distribution
shall then be made), except (A) the Record Date of such dividend or
distribution shall be substituted as "the date fixed for the determination of
stockholders entitled to receive such dividend or other distribution", "the
date fixed for the determination of stockholders entitled to receive such
rights or warrants" and "the date fixed for such determination" within the
meaning of Sections 15.5(a) and (b), and (B) any shares of Common Stock
included in such dividend or distribution shall not be deemed "outstanding at
the close of business on the date fixed for such determination" within the
meaning of Section 15.5(a).

              (e)     In case the Company shall, by dividend or otherwise,
distribute to all holders of its Common Stock cash (excluding (x) any
quarterly cash dividend on the Common Stock to the extent the

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<PAGE>

aggregate cash dividend per share of Common Stock in any fiscal quarter does
not exceed the greater of (A) the amount per share of Common Stock of the
next preceding quarterly cash dividend on the Common Stock to the extent that
such preceding quarterly dividend did not require any adjustment of the
Conversion Price pursuant to this Section 15.5(e) (as adjusted to reflect
subdivisions, or combinations of the Common Stock), and (B) 3.75% of the
arithmetic average of the Closing Price (determined as set forth in Section
15.5(h)) during the ten Trading Days (as defined in Section 15.5(h))
immediately prior to the date of declaration of such dividend, and (y) any
dividend or distribution in connection with the liquidation, dissolution or
winding up of the Company, whether voluntary or involuntary), then, in such
case, the Conversion Price shall be reduced so that the same shall equal the
price determined by multiplying the Conversion Price in effect immediately
prior to the close of business on such record date by a fraction, the
numerator of which shall be the Current Market Price of the Common Stock on
the record date less the amount of cash so distributed (and not excluded as
provided above) applicable to one share of Common Stock, and the denominator
of which shall be such Current Market Price of the Common Stock, such
reduction to be effective immediately prior to the opening of business on the
day following the record date; provided, however, that in the event the
portion of the cash so distributed applicable to one share of Common Stock is
equal to or greater than the Current Market Price of the Common Stock on the
record date, in lieu of the foregoing adjustment, adequate provision shall be
made so that each Noteholder shall have the right to receive upon conversion
the amount of cash such holder would have received had such holder converted
each Note on the record date.  In the event that such dividend or
distribution is not so paid or made, the Conversion Price shall again be
adjusted to be the Conversion Price that would then be in effect if such
dividend or distribution had not been declared.  If any adjustment is
required to be made as set forth in this Section 15.5(e) as a result of a
distribution that is a quarterly dividend, such adjustment shall be based
upon the amount by which such distribution exceeds the amount of the
quarterly cash dividend permitted to be excluded pursuant hereto.  If an
adjustment is required to be made as set forth in this Section 15.5(e) above
as a result of a distribution that is not a quarterly dividend, such
adjustment shall be based upon the full amount of the distribution.

              (f)     In case a tender or exchange offer made by the Company
or any Subsidiary for all or any portion of the Common Stock shall expire and
such tender or exchange offer (as amended upon the expiration thereof) shall
require the payment to stockholders of consideration per share of Common
Stock having a fair market value (as determined by the Board of Directors,
whose determination shall be conclusive and described in a resolution of the
Board of Directors) that as of the last time (the "Expiration Time") tenders
or exchanges may be made pursuant to such tender or exchange offer (as it may
be amended) exceeds the Current Market Price of the Common Stock on the
Trading Day next succeeding the Expiration Time, the Conversion Price shall
be reduced so that the same shall equal the price determined by multiplying
the Conversion Price in effect immediately prior to the Expiration Time by a
fraction the numerator of which shall be the number of shares of Common Stock
outstanding (including any tendered or exchanged shares) at the Expiration
Time multiplied by the Current Market Price of the Common Stock on the
Trading Day next succeeding the Expiration Time and the denominator of which
shall be the sum of (x) the fair market value (determined as aforesaid) of
the aggregate consideration payable to stockholders based on the acceptance
(up to any maximum specified in the terms of the tender or exchange offer) of
all shares validly tendered or exchanged and not withdrawn as of the
Expiration Time (the shares deemed so accepted, up to any such maximum, being
referred to as the "Purchased Shares") and (y) the product of the number of
shares of Common Stock outstanding (less any Purchased Shares) at the
Expiration Time and the Current Market Price of the Common Stock on the
Trading Day next succeeding the Expiration Time, such reduction to become
effective immediately prior to the opening of business on the Trading Day
following the Expiration Time.  In the event that the Company is obligated to
purchase shares pursuant to any such tender or exchange offer, but the
Company is permanently prevented by applicable law from effecting any such
purchases or all such

                                     -59-

<PAGE>

purchases are rescinded, the Conversion Price shall again be adjusted to be
the Conversion Price that would then be in effect if such tender or exchange
offer had not been made.

              (g)     In case of a tender or exchange offer made by a Person
other than the Company or any Subsidiary for an amount that increases the
offeror's ownership of Common Stock to more than twenty-five percent (25%) of
the Common Stock outstanding and shall involve the payment by such Person of
consideration per share of Common Stock having a fair market value (as
determined by the Board of Directors, whose determination shall be
conclusive, and described in a resolution of the Board of Directors) that as
of the last time (the "Offer Expiration Time") tenders or exchanges may be
made pursuant to such tender or exchange offer (as it shall have been
amended) that exceeds the Current Market Price of the Common Stock on the
Trading Day next succeeding the Offer Expiration Time, and in which, as of
the Offer Expiration Time the Board of Directors is not recommending
rejection of the offer, the Conversion Price shall be reduced so that the
same shall equal the price determined by multiplying the Conversion Price in
effect immediately prior to the Offer Expiration Time by a fraction the
numerator of which shall be the number of shares of Common Stock outstanding
(including any tendered or exchanged shares) at the Offer Expiration Time
multiplied by the Current Market Price of the Common Stock on the Trading Day
next succeeding the Offer Expiration Time and the denominator of which shall
be the sum of (x) the fair market value (determined as aforesaid) of the
aggregate consideration payable to stockholders based on the acceptance (up
to any maximum specified in the terms of the tender or exchange offer) of all
shares validly tendered or exchanged and not withdrawn as of the Offer
Expiration Time (the shares deemed so accepted, up to any such maximum, being
referred to as the "Accepted Purchased Shares") and (y) the product of the
number of shares of Common Stock outstanding (less any Accepted Purchased
Shares) at the Offer Expiration Time and the Current Market Price of the
Common Stock on the Trading Day next succeeding the Offer Expiration Time,
such reduction to become effective immediately prior to the opening of
business on the Trading Day following the Offer Expiration Time.  In the
event that such Person is obligated to purchase shares pursuant to any such
tender or exchange offer, but such Person is permanently prevented by
applicable law from effecting any such purchases or all such purchases are
rescinded, the Conversion Price shall again be adjusted to be the Conversion
Price that would then be in effect if such tender or exchange offer had not
been made.  Notwithstanding the foregoing, the adjustment described in this
Section 15.5(g) shall not be made if, as of the Offer Expiration Time, the
offering documents with respect to such offer disclose a plan or intention to
cause the Company to engage in any transaction described in Article Twelve.

              (h)     For purposes of this Section 15.5, the following terms
shall have the meaning indicated:

                      (1)   "Closing Price" with respect to any security on any
              day shall mean the closing sale price, regular way, on such day
              or, in case no such sale takes place on such day, the average of
              the reported closing bid and asked prices, regular way, in each
              case as quoted on the Nasdaq National Market or, if such security
              is not quoted or listed or admitted to trading on such Nasdaq
              National Market, on the principal national securities exchange or
              quotation system on which such security is quoted or listed or
              admitted to trading or, if not quoted or listed or admitted to
              trading on any national securities exchange or quotation system,
              the average of the closing bid and asked prices of such security
              on the over-the-counter market on the day in question as reported
              by the National Quotation Bureau Incorporated, or a similar
              generally accepted reporting service, or if not so available, in
              such manner as furnished by any New York Stock Exchange member
              firm selected from time to time by the Board of Directors for that
              purpose, or a price determined in good faith by the

                                     -60-

<PAGE>

              Board of Directors or, to the extent permitted by applicable law,
              a duly authorized committee thereof, whose determination shall be
              conclusive.

                      (2)   "Current Market Price" shall mean the average of the
              daily Closing Prices per share of Common Stock for the ten
              consecutive Trading Days immediately prior to the date in question
              except as hereinafter provided for purposes of any computation
              under Section 15.5(f) or (g); provided, however, that (1) if the
              "ex" date (as hereinafter defined) for any event (other than the
              issuance or distribution requiring such computation and other than
              the tender or exchange offer requiring such computation under
              Section 15.5(f) or (g)) that requires an adjustment to the
              Conversion Price pursuant to Section 15.5(a), (b), (c), (d), (e),
              (f) or (g) occurs during such ten consecutive Trading Days, the
              Closing Price for each Trading Day prior to the "ex" date for such
              other event shall be adjusted by multiplying such Closing Price by
              the same fraction by which the Conversion Price is so required to
              be adjusted as a result of such other event, (2) if the "ex" date
              for any event (other than the issuance or distribution requiring
              such computation and other than the tender or exchange offer
              requiring such computation under Section 15.5(f) or (g)) that
              requires an adjustment to the Conversion Price pursuant to
              Section 15.5(a), (b), (c), (d), (e), (f) or (g) occurs on or after
              the "ex" date for the issuance or distribution requiring such
              computation and prior to the day in question, the Closing Price
              for each Trading Day on and after the "ex" date for such other
              event shall be adjusted by multiplying such Closing Price by the
              reciprocal of the fraction by which the Conversion Price is so
              required to be adjusted as a result of such other event, and
              (3) if the "ex" date for the issuance or distribution requiring
              such computation is prior to the day in question, after taking
              into account any adjustment required pursuant to clause (1) or (2)
              of this proviso, the Closing Price for each Trading Day on or
              after such "ex" date shall be adjusted by adding thereto the
              amount of any cash and the fair market value (as determined by the
              Board of Directors or, to the extent permitted by applicable law,
              a duly authorized committee thereof in a manner consistent with
              any determination of such value for purposes of Section 15.5(d),
              (f) or (g), whose determination shall be conclusive and described
              in a resolution of the Board of Directors or such duly authorized
              committee thereof, as the case may be) of the evidences of
              indebtedness, shares of capital stock or assets being distributed
              applicable to one share of Common Stock as of the close of
              business on the day before such "ex" date.  For purposes of any
              computation under Section 15.5(f) or (g), the "Current Market
              Price" of the Common Stock on any date shall be deemed to be the
              average of the daily Closing Prices per share of Common Stock for
              such day and the next two succeeding Trading Days; provided,
              however, that if the "ex" date for any event (other than the
              tender or exchange offer requiring such computation under
              Section 15.5(f) or (g)) that requires an adjustment to the
              Conversion Price pursuant to Section 15.5(a), (b), (c), (d), (e),
              (f) or (g) occurs on or after the Expiration Time or Offer
              Expiration Time, as the case may be, for the tender or exchange
              offer requiring such computation and prior to the day in question,
              the Closing Price for each Trading Day on and after the "ex" date
              for such other event shall be adjusted as provided in clauses (1),
              (2) and (3) of the proviso contained in the first sentence of this
              Section 15.5(h)(2).  For purpose of this paragraph, the term "ex"
              date, (1) when used with respect to any issuance or distribution,
              means the first date on which the Common Stock trades, regular
              way, on the relevant exchange or in the relevant market from which
              the Closing Price was obtained without the right to receive such
              issuance or distribution, (2) when used with respect to any
              subdivision or combination of shares of Common Stock, means the
              first date on which the Common Stock trades, regular way, on such
              exchange or in such market after the time at which such
              subdivision or combination becomes effective, and

                                     -61-

<PAGE>

              (3) when used with respect to any tender or exchange offer means
              the first date on which the Common Stock trades, regular way, on
              such exchange or in such market after the Expiration Time or the
              Offer Expiration Time of such offer.

                      (3)   "fair market value" shall mean the amount which a
              willing buyer would pay a willing seller in an arm's-length
              transaction.

                      (4)   "Record Date" shall mean, with respect to any
              dividend, distribution or other transaction or event in which the
              holders of Common Stock have the right to receive any cash,
              securities or other property or in which the Common Stock (or
              other applicable security) is exchanged for or converted into any
              combination of cash, securities or other property, the date fixed
              for determination of stockholders entitled to receive such cash,
              securities or other property (whether such date is fixed by the
              Board of Directors or by statute, contract or otherwise).

                      (5)   "Trading Day" shall mean (x) if the applicable
              security is quoted on the Nasdaq National Market, a day on which
              trades may be made thereon or (y) if the applicable security is
              listed or admitted for trading on the New York Stock Exchange or
              another national securities exchange, a day on which the New York
              Stock Exchange or another national securities exchange is open for
              business or (z) if the applicable security is not so listed,
              admitted for trading or quoted, any day other than a Saturday or
              Sunday or a day on which banking institutions in the State of New
              York are authorized or obligated by law or executive order to
              close.

              (i)     The Company may make such reductions in the Conversion
Price, in addition to those required by Sections 15.5(a), (b), (c), (d), (e),
(f) or (g) as the Board of Directors considers to be advisable to avoid or
diminish any income tax to holders of Common Stock or rights to purchase
Common Stock resulting from any dividend or distribution of stock (or rights
to acquire stock) or from any event treated as such for income tax purposes.

              To the extent permitted by applicable law, the Company from
time to time may reduce the Conversion Price by any amount for any period of
time if the period is at least twenty (20) days, the reduction is irrevocable
during the period and the Board of Directors shall have made a determination
that such reduction would be in the best interests of the Company, which
determination shall be conclusive.  Whenever the Conversion Price is reduced
pursuant to the preceding sentence, the Company shall mail to holders of
record of the Notes a notice of the reduction at least fifteen (15) days
prior to the date the reduced Conversion Price takes effect, and such notice
shall state the reduced Conversion Price and the period during which it will
be in effect.

              (j)     No adjustment in the Conversion Price shall be required
unless such adjustment would require an increase or decrease of at least one
percent (1%) in such price; provided, however, that any adjustments that by
reason of this Section 15.5(j) are not required to be made shall be carried
forward and taken into account in any subsequent adjustment.  All
calculations under this Article Fifteen shall be made by the Company and
shall be made to the nearest cent or to the nearest one-hundredth (1/100) of
a share, as the case may be.  No adjustment need be made for rights to
purchase Common Stock pursuant to a Company plan for reinvestment of
dividends or interest.  To the extent the Notes become convertible into cash,
assets, property or securities (other than capital stock of the Company), no
adjustment need be made thereafter as to the cash, assets, property or such
securities.  Interest will not accrue on the cash.

                                     -62-

<PAGE>

              (k)     Whenever the Conversion Price is adjusted as herein
provided, the Company shall promptly file with the Trustee and any conversion
agent other than the Trustee an Officers' Certificate setting forth the
Conversion Price after such adjustment and setting forth a brief statement of
the facts requiring such adjustment.  Unless and until a Responsible Officer of
the Trustee shall have received such Officers' Certificate, the Trustee shall
not be deemed to have knowledge of any adjustment of the Conversion Price and
may assume that the last Conversion Price of which it has knowledge is still in
effect.  Promptly after delivery of such certificate, the Company shall prepare
a notice of such adjustment of the Conversion Price setting forth the adjusted
Conversion Price and the date on which each adjustment becomes effective and
shall mail such notice of such adjustment of the Conversion Price to the holder
of each Note at his last address appearing on the Note register provided for in
Section 2.5 of this Indenture, within twenty (20) days after execution thereof.
Failure to deliver such notice shall not affect the legality or validity of any
such adjustment.

              (l)     In any case in which this Section 15.5 provides that an
adjustment shall become effective immediately after (1) a record date or Record
Date for an event, (2) the date fixed for the determination of stockholders
entitled to receive a dividend or distribution pursuant to Section 15.5(a), (3)
a date fixed for the determination of stockholders entitled to receive rights or
warrants pursuant to Section 15.5(b), (4) the Expiration Time for any tender or
exchange offer pursuant to Section 15.5(f), or (5) the Offer Expiration Time for
a tender or exchange offer pursuant to Section 15.5(g) (each a "Determination
Date"), the Company may elect to defer until the occurrence of the relevant
Adjustment Event (as hereinafter defined) (x) issuing to the holder of any Note
converted after such Determination Date and before the occurrence of such
Adjustment Event, the additional shares of Common Stock or other securities
issuable upon such conversion by reason of the adjustment required by such
Adjustment Event over and above the Common Stock issuable upon such conversion
before giving effect to such adjustment and (y) paying to such holder any amount
in cash in lieu of any fraction pursuant to Section 15.3.  For purposes of this
Section 15.5(l), the term "Adjustment Event" shall mean:

                      (a)   in any case referred to in clause (1) hereof, the
              occurrence of such event,

                      (b)   in any case referred to in clause (2) hereof, the
              date any such dividend or distribution is paid or made,

                      (c)   in any case referred to in clause (3) hereof, the
              date of expiration of such rights or warrants, and

                      (d)   in any case referred to in clause (4) or clause (5)
              hereof, the date a sale or exchange of Common Stock pursuant to
              such tender or exchange offer is consummated and becomes
              irrevocable.

              (m)     For purposes of this Section 15.5, the number of shares
of Common Stock at any time outstanding shall not include shares held in the
treasury of the Company but shall include shares issuable in respect of scrip
certificates issued in lieu of fractions of shares of Common Stock.  The Company
will not pay any dividend or make any distribution on shares of Common Stock
held in the treasury of the Company.

       Section 15.6.  EFFECT OF RECLASSIFICATION, CONSOLIDATION, MERGER OR
SALE.  If any of the following events occur, namely (i) any reclassification or
change of the outstanding shares of Common Stock (other than a subdivision or
combination to which Section 15.5(c) applies), (ii) any consolidation, merger or
combination of the Company with another Person as a result of which holders of
Common Stock shall be

                                     -63-

<PAGE>

entitled to receive stock, other securities or other property or assets
(including cash) with respect to or in exchange for such Common Stock, or
(iii) any sale or conveyance of all or substantially all of the properties
and assets of the Company to any other Person as a result of which holders of
Common Stock shall be entitled to receive stock, other securities or other
property or assets (including cash) with respect to or in exchange for such
Common Stock, then the Company or the successor or purchasing Person, as the
case may be, shall execute with the Trustee a supplemental indenture (which
shall comply with the Trust Indenture Act as in force at the date of
execution of such supplemental indenture) providing that such Note shall be
convertible into the kind and amount of shares of stock, other securities or
other property or assets (including cash) receivable upon such
reclassification, change, consolidation, merger, combination, sale or
conveyance by a holder of a number of shares of Common Stock issuable upon
conversion of such Notes (assuming, for such purposes, a sufficient number of
authorized shares of Common Stock are available to convert all such Notes)
immediately prior to such reclassification, change, consolidation, merger,
combination, sale or conveyance assuming such holder of Common Stock did not
exercise his rights of election, if any, as to the kind or amount of stock,
other securities or other property or assets (including cash) receivable upon
such reclassification, change, consolidation, merger, combination, sale or
conveyance (provided that, if the kind or amount of stock, other securities
or other property or assets (including cash) receivable upon such
reclassification, change, consolidation, merger, combination, sale or
conveyance is not the same for each share of Common Stock in respect of which
such rights of election shall not have been exercised ("non-electing share"),
then for the purposes of this Section 15.6 the kind and amount of stock,
other securities or other property or assets (including cash) receivable upon
such reclassification, change, consolidation, merger, combination, sale or
conveyance for each non-electing share shall be deemed to be the kind and
amount so receivable per share by a plurality of the non-electing shares).
Such supplemental indenture shall provide for adjustments which shall be as
nearly equivalent as may be practicable to the adjustments provided for in
this Article Fifteen.

       The Company shall cause notice of the execution of such supplemental
indenture to be mailed to each holder of Notes, at its address appearing on the
Note register provided for in Section 2.5 of this Indenture, within twenty (20)
days after execution thereof.  Failure to deliver such notice shall not affect
the legality or validity of such supplemental indenture.

       The above provisions of this Section shall similarly apply to successive
reclassifications, changes, consolidations, mergers, combinations, sales and
conveyances.

       If this Section 15.6 applies to any event or occurrence, Section 15.5
shall not apply.

       Section 15.7.  TAXES ON SHARES ISSUED.  The issue of stock certificates
on conversions of Notes shall be made without charge to the converting
Noteholder for any tax in respect of the issue thereof.  The Company shall not,
however, be required to pay any tax which may be payable in respect of any
transfer involved in the issue and delivery of stock in any name other than that
of the holder of any Note converted, and the Company shall not be required to
issue or deliver any such stock certificate unless and until the Person or
Persons requesting the issue thereof shall have paid to the Company the amount
of such tax or shall have established to the satisfaction of the Company that
such tax has been paid.

       Section 15.8.  RESERVATION OF SHARES; SHARES TO BE FULLY PAID;
COMPLIANCE WITH GOVERNMENTAL REQUIREMENTS; LISTING OF COMMON STOCK.  The Company
shall provide, free from preemptive rights, out of its authorized but unissued
shares or shares held in treasury, sufficient shares of Common Stock to provide
for the conversion of the Notes from time to time as such Notes are presented
for conversion.

                                     -64-

<PAGE>

       Before taking any action which would cause an adjustment reducing the
Conversion Price below the then par value, if any, of the shares of Common Stock
issuable upon conversion of the Notes, the Company will take all corporate
action which may, in the opinion of its counsel, be necessary in order that the
Company may validly and legally issue shares of such Common Stock at such
adjusted Conversion Price.

       The Company covenants that all shares of Common Stock which may be issued
upon conversion of Notes will upon issue be fully paid and non-assessable by the
Company and free from all taxes, liens and charges with respect to the issue
thereof.

       The Company covenants that, if any shares of Common Stock to be provided
for the purpose of conversion of Notes hereunder require registration with or
approval of any governmental authority under any federal or state law before
such shares may be validly issued upon conversion, the Company will in good
faith and as expeditiously as possible, to the extent then permitted by the
rules and interpretations of the Securities and Exchange Commission (or any
successor thereto), endeavor to secure such registration or approval, as the
case may be.

       The Company further covenants that, if at any time the Common Stock shall
be listed on the Nasdaq National Market or any other national securities
exchange or automated quotation system, the Company will, if permitted by the
rules of such exchange or automated quotation system, list and keep listed, so
long as the Common Stock shall be so listed on such exchange or automated
quotation system, all Common Stock issuable upon conversion of the Note;
provided, however, that, if the rules of such exchange or automated quotation
system permit the Company to defer the listing of such Common Stock until the
first conversion of the Notes into Common Stock in accordance with the
provisions of this Indenture, the Company covenants to list such Common Stock
issuable upon conversion of the Notes in accordance with the requirements of
such exchange or automated quotation system at such time.

       Section 15.9.  RESPONSIBILITY OF TRUSTEE.  The Trustee and any other
conversion agent shall not at any time be under any duty or responsibility to
any holder of Notes to determine the Conversion Price or whether any facts exist
which may require any adjustment of the Conversion Price, or with respect to the
nature or extent or calculation of any such adjustment when made, or with
respect to the method employed, or herein or in any supplemental indenture
provided to be employed, in making the same.  The Trustee and any other
conversion agent shall not be accountable with respect to the validity or value
(or the kind or amount) of any shares of Common Stock, or of any securities or
property, which may at any time be issued or delivered upon the conversion of
any Note; and the Trustee and any other conversion agent make no representations
with respect thereto.  Neither the Trustee nor any conversion agent shall be
responsible for any failure of the Company to issue, transfer or deliver any
shares of Common Stock or stock certificates or other securities or property or
cash upon the surrender of any Note for the purpose of conversion or to comply
with any of the duties, responsibilities or covenants of the Company contained
in this Article Fifteen.  Without limiting the generality of the foregoing,
neither the Trustee nor any conversion agent shall be under any responsibility
to determine the correctness of any provisions contained in any supplemental
indenture entered into pursuant to Section 15.6 relating either to the kind or
amount of shares of stock or securities or property (including cash) receivable
by Noteholders upon the conversion of their Notes after any event referred to in
such Section 15.6 or to any adjustment to be made with respect thereto, but,
subject to the provisions of Section 8.1, may accept as conclusive evidence of
the correctness of any such provisions, and shall be protected in relying upon,
the Officers' Certificate (which the Company shall be obligated to file with the
Trustee prior to the execution of any such supplemental indenture) with respect
thereto.

       Section 15.10. NOTICE TO HOLDERS PRIOR TO CERTAIN ACTIONS.  In case:

                                     -65-

<PAGE>

              (a)     the Company shall declare a dividend (or any other
distribution) on its Common Stock that would require an adjustment in the
Conversion Price pursuant to Section 15.5; or

              (b)     the Company shall authorize the granting to the holders
of all or substantially all of its Common Stock of rights or warrants to
subscribe for or purchase any share of any class or any other rights or
warrants; or

              (c)     of any reclassification or reorganization of the Common
Stock of the Company (other than a subdivision or combination of its outstanding
Common Stock, or a change in par value, or from par value to no par value, or
from no par value to par value), or of any consolidation or merger to which the
Company is a party and for which approval of any stockholders of the Company is
required, or of the sale or transfer of all or substantially all of the assets
of the Company or any Significant Subsidiary; or

              (d)     of the voluntary or involuntary dissolution, liquidation
or winding up of the Company or any Significant Subsidiary;

              the Company shall cause to be filed with the Trustee and to be
mailed to each holder of Notes at his address appearing on the Note register
provided for in Section 2.5 of this Indenture, as promptly as possible but in
any event at least ten (10) days prior to the applicable date hereinafter
specified, a notice stating (x) the date on which a record is to be taken for
the purpose of such dividend, distribution or rights or warrants, or, if a
record is not to be taken, the date as of which the holders of Common Stock of
record to be entitled to such dividend, distribution or rights are to be
determined, or (y) the date on which such reclassification, consolidation,
merger, sale, transfer, dissolution, liquidation or winding up is expected to
become effective or occur, and the date as of which it is expected that holders
of Common Stock of record shall be entitled to exchange their Common Stock for
securities or other property deliverable upon such reclassification,
consolidation, merger, sale, transfer, dissolution, liquidation or winding up.
Failure to give such notice, or any defect therein, shall not affect the
legality or validity of such dividend, distribution, reclassification,
consolidation, merger, sale, transfer, dissolution, liquidation or winding up.

                                  ARTICLE SIXTEEN

                              MISCELLANEOUS PROVISIONS

       Section 16.1.  PROVISIONS BINDING ON COMPANY'S SUCCESSORS.  All the
covenants, stipulations, promises and agreements by the Company contained in
this Indenture shall bind its successors and assigns whether so expressed or
not.

       Section 16.2.  OFFICIAL ACTS BY SUCCESSOR CORPORATION.  Any act or
proceeding by any provision of this Indenture authorized or required to be done
or performed by any board, committee or officer of the Company shall and may be
done and performed with like force and effect by the like board, committee or
officer of any Person that shall at the time be the lawful sole successor of the
Company.

       Section 16.3.  ADDRESSES FOR NOTICES, ETC.  Any notice or demand which
by any provision of this Indenture is required or permitted to be given or
served by the Trustee or by the holders of Notes on the Company shall be deemed
to have been sufficiently given or made, for all purposes, if given or served by
being deposited postage prepaid by registered or certified mail in a post office
letter box addressed (until another address is filed by the Company with the
Trustee) to Lattice Semiconductor Corporation, 5555 N.E. Moore Court, Hillsboro,
Oregon 97124-6421 Attention:  Treasurer.  Any notice, direction, request or
demand

                                     -66-

<PAGE>

hereunder to or upon the Trustee shall be deemed to have been sufficiently
given or made, for all purposes, if given or served by being deposited,
postage prepaid, by registered or certified mail in a post office letter box
addressed to the Corporate Trust Office, which office is, at the date as of
which this Indenture is dated, located at 633 West 5th Street, 12th Floor,
Los Angeles, California 90071, Attention: Corporate Trust Department (Lattice
Semiconductor Corporation, 4 3/4% Convertible Subordinated Notes due 2006).

       The Trustee, by notice to the Company, may designate additional or
different addresses for subsequent notices or communications.

       Any notice or communication mailed to a Noteholder shall be mailed to him
by first class mail, postage prepaid, at his address as it appears on the Note
register and shall be sufficiently given to him if so mailed within the time
prescribed.

       Failure to mail a notice or communication to a Noteholder or any defect
in it shall not affect its sufficiency with respect to other Noteholders.  If a
notice or communication is mailed in the manner provided above, it is duly
given, whether or not the addressee receives it.

       Section 16.4.  GOVERNING LAW.  This Indenture and each Note shall be
deemed to be a contract made under the laws of the State of New York, and for
all purposes shall be construed in accordance with the laws of the State of New
York, without regard to the conflict of laws provisions thereof.

       Section 16.5.  EVIDENCE OF COMPLIANCE WITH CONDITIONS PRECEDENT;
CERTIFICATES TO TRUSTEE.  Upon any application or demand by the Company to the
Trustee to take any action under any of the provisions of this Indenture, the
Company shall furnish to the Trustee an Officers' Certificate stating that all
conditions precedent, if any, provided for in this Indenture relating to the
proposed action have been complied with, and an Opinion of Counsel stating that,
in the opinion of such counsel, all such conditions precedent have been complied
with.

       Each certificate or opinion provided for in this Indenture and delivered
to the Trustee with respect to compliance with a condition or covenant provided
for in this Indenture shall include: (1) a statement that the person making such
certificate or opinion has read such covenant or condition; (2) a brief
statement as to the nature and scope of the examination or investigation upon
which the statement or opinion contained in such certificate or opinion is
based; (3) a statement that, in the opinion of such person, he has made such
examination or investigation as is necessary to enable him to express an
informed opinion as to whether or not such covenant or condition has been
complied with; and (4) a statement as to whether or not, in the opinion of such
person, such condition or covenant has been complied with.

       Section 16.6.  LEGAL HOLIDAYS.  In any case in which the date of
maturity of interest on or principal of the Notes or the date fixed for
redemption of any Note will not be a Business Day, then payment of such interest
on or principal of the Notes need not be made on such date, but may be made on
the next succeeding Business Day with the same force and effect as if made on
the date of maturity or the date fixed for redemption, and no interest shall
accrue for the period from and after such date.

       Section 16.7.  TRUST INDENTURE ACT.  This Indenture is hereby made
subject to, and shall be governed by, the provisions of the Trust Indenture Act
required to be part of and to govern indentures qualified under the Trust
Indenture Act; provided, however, that, unless otherwise required by law,
notwithstanding the foregoing, this Indenture and the Notes issued hereunder
shall not be subject to the provisions of subsections (a)(1), (a)(2), and (a)(3)
of Section 314 of the Trust Indenture Act as now in effect or as hereafter

                                     -67-

<PAGE>

amended or modified; provided further that this Section 16.7 shall not require
this Indenture or the Trustee to be qualified under the Trust Indenture Act
prior to the time such qualification is in fact required under the terms of the
Trust Indenture Act, nor shall it constitute any admission or acknowledgment by
any party to the Indenture that any such qualification is required prior to the
time such qualification is in fact required under the terms of the Trust
Indenture Act.  If any provision hereof limits, qualifies or conflicts with
another provision hereof which is required to be included in an indenture
qualified under the Trust Indenture Act, such required provision shall control.

       Section 16.8.  NO SECURITY INTEREST CREATED.  Nothing in this Indenture
or in the Notes, expressed or implied, shall be construed to constitute a
security interest under the Uniform Commercial Code or similar legislation, as
now or hereafter enacted and in effect, in any jurisdiction in which property of
the Company or its subsidiaries is located.

       Section 16.9.  BENEFITS OF INDENTURE.  Nothing in this Indenture or in
the Notes, express or implied, shall give to any Person, other than the parties
hereto, any paying agent, any authenticating agent, any Note registrar and their
successors hereunder, the holders of Notes and the holders of Senior
Indebtedness, any benefit or any legal or equitable right, remedy or claim under
this Indenture.

       Section 16.10. TABLE OF CONTENTS, HEADINGS, ETC.  The table of contents
and the titles and headings of the articles and Sections of this Indenture have
been inserted for convenience of reference only, are not to be considered a part
hereof, and shall in no way modify or restrict any of the terms or provisions
hereof.

       Section 16.11. AUTHENTICATING AGENT.  The Trustee may appoint an
authenticating agent that shall be authorized to act on its behalf, and subject
to its direction, in the authentication and delivery of Notes in connection with
the original issuance thereof and transfers and exchanges of Notes hereunder,
including under Sections 2.4, 2.5, 2.6, 2.7, 3.3 and 3.5, as fully to all
intents and purposes as though the authenticating agent had been expressly
authorized by this Indenture and those Sections to authenticate and deliver
Notes.  For all purposes of this Indenture, the authentication and delivery of
Notes by the authenticating agent shall be deemed to be authentication and
delivery of such Notes "by the Trustee" and a certificate of authentication
executed on behalf of the Trustee by an authenticating agent shall be deemed to
satisfy any requirement hereunder or in the Notes for the Trustee's certificate
of authentication.  Such authenticating agent shall at all times be a Person
eligible to serve as trustee hereunder pursuant to Section 8.9.

       Any corporation into which any authenticating agent may be merged or
converted or with which it may be consolidated, or any corporation resulting
from any merger, consolidation or conversion to which any authenticating agent
shall be a party, or any corporation succeeding to the corporate trust business
of any authenticating agent, shall be the successor of the authenticating agent
hereunder, if such successor corporation is otherwise eligible under this
Section 16.11, without the execution or filing of any paper or any further act
on the part of the parties hereto or the authenticating agent or such successor
corporation.

       Any authenticating agent may at any time resign by giving written notice
of resignation to the Trustee and to the Company.  The Trustee may at any time
terminate the agency of any authenticating agent by giving written notice of
termination to such authenticating agent and to the Company.  Upon receiving
such a notice of resignation or upon such a termination, or in case at any time
any authenticating agent shall cease to be eligible under this Section , the
Trustee shall either promptly appoint a successor authenticating agent or itself
assume the duties and obligations of the former authenticating agent under this
Indenture and, upon such appointment of a successor authenticating agent, if
made, shall give written notice of such appointment of a successor

                                     -68-

<PAGE>

authenticating agent to the Company and shall mail notice of such appointment of
a successor authenticating agent to all holders of Notes as the names and
addresses of such holders appear on the Note register.

       The Company agrees to pay to the authenticating agent from time to time
such reasonable compensation for its services as shall be agreed upon in writing
between the Company and the authenticating agent.

       The provisions of Sections 8.2, 8.3, 8.4, 9.3 and this Section 16.11
shall be applicable to any authenticating agent.

       Section 16.12. EXECUTION IN COUNTERPARTS.  This Indenture may be
executed in any number of counterparts, each of which shall be an original, but
such counterparts shall together constitute but one and the same instrument.

       Section 16.13. SEVERABILITY.  In case any provision in this Indenture or
in the Notes shall be invalid, illegal or unenforceable, then (to the extent
permitted by law) the validity, legality and enforceability of the remaining
provisions shall not in any way be affected or impaired thereby.


                                     -69-

<PAGE>

       State Street Bank and Trust Company of California, N.A. hereby accepts
the trusts in this Indenture declared and provided, upon the terms and
conditions herein above set forth.

       IN WITNESS WHEREOF, the parties hereto have caused this Indenture to be
duly executed.

                                       LATTICE SEMICONDUCTOR CORPORATION

                                       By:    /s/ Cyrus Y. Tsui
                                          --------------------------------
                                       Name:  Cyrus Y. Tsui
                                       Title:  President, Chief Executive
                                               Officer and Chairman of the Board

                                       STATE STREET BANK AND TRUST COMPANY
                                       OF CALIFORNIA, N.A.,
                                       as Trustee


                                       By:   /s/ Scott C. Emmons
                                          --------------------------------
                                       Name:   Scott C. Emmons
                                       Title:  Vice President


                                     -70-

<PAGE>

                                      EXHIBIT A

       For Global Note only: UNLESS THIS CERTIFICATE IS PRESENTED BY AN
AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (55 WATER STREET, NEW
YORK, NEW YORK) (THE "DEPOSITARY", WHICH TERM INCLUDES ANY SUCCESSOR DEPOSITARY
FOR THE CERTIFICATES) TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER,
EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF
CEDE & CO. OR IN SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF
THE DEPOSITARY (AND ANY PAYMENT HEREIN IS MADE TO CEDE & CO. OR TO SUCH OTHER
ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITARY), ANY
TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON
IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST
HEREIN.

       THE NOTE EVIDENCED HEREBY HAS NOT BEEN REGISTERED UNDER THE UNITED STATES
SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT"), OR ANY STATE
SECURITIES LAWS, AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD WITHIN THE UNITED
STATES OR TO, OR FOR THE ACCOUNT OR BENEFIT OF, U.S. PERSONS EXCEPT AS SET FORTH
IN THE FOLLOWING SENTENCE.  BY ITS ACQUISITION HEREOF, THE HOLDER (1) REPRESENTS
THAT (A) IT IS A "QUALIFIED INSTITUTIONAL BUYER" (AS DEFINED IN RULE 144A UNDER
THE SECURITIES ACT) OR (B) IT IS AN INSTITUTIONAL "ACCREDITED INVESTOR" (AS
DEFINED IN RULE 501(A)(1), (2), (3) OR (7) UNDER THE SECURITIES ACT)
("INSTITUTIONAL ACCREDITED INVESTOR"); (2) AGREES THAT IT WILL NOT, PRIOR TO
EXPIRATION OF THE HOLDING PERIOD APPLICABLE TO SALES OF THE NOTE EVIDENCED
HEREBY UNDER RULE 144(K) UNDER THE SECURITIES ACT (OR ANY SUCCESSOR PROVISION),
RESELL OR OTHERWISE TRANSFER THE NOTE EVIDENCED HEREBY OR THE COMMON STOCK
ISSUABLE UPON CONVERSION OF SUCH NOTE EXCEPT (A) TO LATTICE SEMICONDUCTOR
CORPORATION OR ANY SUBSIDIARY THEREOF, (B) INSIDE THE UNITED STATES TO A
QUALIFIED INSTITUTIONAL BUYER IN COMPLIANCE WITH RULE 144A UNDER THE SECURITIES
ACT, (C) INSIDE THE UNITED STATES TO AN INSTITUTIONAL ACCREDITED INVESTOR THAT,
PRIOR TO SUCH TRANSFER, FURNISHES TO STATE STREET BANK AND TRUST COMPANY OF
CALIFORNIA, N.A., AS TRUSTEE (OR A SUCCESSOR TRUSTEE, AS APPLICABLE), A SIGNED
LETTER CONTAINING CERTAIN REPRESENTATIONS AND AGREEMENTS RELATING TO THE
RESTRICTIONS ON TRANSFER OF THE NOTE EVIDENCED HEREBY (THE FORM OF WHICH LETTER
CAN BE OBTAINED FROM SUCH TRUSTEE OR A SUCCESSOR TRUSTEE, AS APPLICABLE),
(D) OUTSIDE THE UNITED STATES IN COMPLIANCE WITH RULE 904 UNDER THE SECURITIES
ACT, (E) PURSUANT TO THE EXEMPTION FROM REGISTRATION PROVIDED BY RULE 144 UNDER
THE SECURITIES ACT (IF AVAILABLE) OR (F) PURSUANT TO A REGISTRATION STATEMENT
WHICH HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES ACT (AND WHICH CONTINUES
TO BE EFFECTIVE AT THE TIME OF SUCH TRANSFER); (3) PRIOR TO SUCH TRANSFER (OTHER
THAN A TRANSFER PURSUANT TO CLAUSE (2)(F) ABOVE), IT WILL FURNISH TO STATE
STREET BANK AND TRUST COMPANY OF CALIFORNIA, N.A., AS TRUSTEE (OR A SUCCESSOR
TRUSTEE, AS APPLICABLE, SUCH CERTIFICATIONS, LEGAL OPINIONS OR OTHER INFORMATION
AS THE TRUSTEE MAY REASONABLY REQUIRE TO CONFIRM THAT SUCH TRANSFER IS BEING
MADE PURSUANT TO AN EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE
REGISTRATION

<PAGE>

REQUIREMENTS OF THE SECURITIES ACT; AND (4) AGREES THAT IT WILL DELIVER TO
EACH PERSON TO WHOM THE NOTE EVIDENCED HEREBY IS TRANSFERRED A NOTICE
SUBSTANTIALLY TO THE EFFECT OF THIS LEGEND.  IN CONNECTION WITH ANY TRANSFER
OF THE NOTE EVIDENCED HEREBY PRIOR TO THE EXPIRATION OF THE HOLDING PERIOD
APPLICABLE TO SALES OF THE NOTE EVIDENCED HEREBY UNDER RULE 144(K) UNDER THE
SECURITIES ACT (OR ANY SUCCESSOR PROVISION), THE HOLDER MUST CHECK THE
APPROPRIATE BOX SET FORTH ON THE REVERSE HEREOF RELATING TO THE MANNER OF
SUCH TRANSFER AND SUBMIT THIS CERTIFICATE TO STATE STREET BANK AND TRUST
COMPANY OF CALIFORNIA, N.A., AS TRUSTEE (OR A SUCCESSOR TRUSTEE, AS
APPLICABLE).  IF THE PROPOSED TRANSFEREE IS AN INSTITUTIONAL ACCREDITED
INVESTOR OR IS A PURCHASER WHO IS NOT A U.S. PERSON, THE HOLDER MUST, PRIOR
TO SUCH TRANSFER, FURNISH TO STATE STREET BANK AND TRUST COMPANY OF
CALIFORNIA, N.A., AS TRUSTEE (OR A SUCCESSOR TRUSTEE, AS APPLICABLE), SUCH
CERTIFICATIONS, LEGAL OPINIONS OR OTHER INFORMATION AS SUCH TRUSTEE MAY
REASONABLY REQUIRE TO CONFIRM THAT SUCH TRANSFER IS BEING MADE PURSUANT TO AN
EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION
REQUIREMENTS OF THE SECURITIES ACT.  THIS LEGEND WILL BE REMOVED UPON THE
EARLIER OF THE TRANSFER OF THE NOTE EVIDENCED HEREBY PURSUANT TO CLAUSE
(2)(F) ABOVE OR UPON ANY TRANSFER OF THE NOTE EVIDENCED HEREBY UNDER RULE
144(K) UNDER THE SECURITIES ACT (OR ANY SUCCESSOR PROVISION).  AS USED
HEREIN, THE TERMS "UNITED STATES" AND "U.S. PERSON" HAVE THE MEANINGS GIVEN
TO THEM BY REGULATION S UNDER THE SECURITIES ACT.


                                     A-2
<PAGE>

                  LATTICE SEMICONDUCTOR CORPORATION

              4 3/4% CONVERTIBLE SUBORDINATED NOTE DUE 2006

                                                  CUSIP:_____________________

No. __________                                          $____________________

       Lattice Semiconductor Corporation, a corporation duly organized and
validly existing under the laws of the State of Delaware (herein called the
"Company", which term includes any successor corporation under the Indenture
referred to on the reverse hereof), for value received hereby promises to pay to
___________________________registered assigns, the principal sum of
_________________ ($___________) on November 1, 2006, at the office or agency of
the Company maintained for that purpose in accordance with the terms of the
Indenture, in such coin or currency of the United States of America as at the
time of payment shall be legal tender for the payment of public and private
debts, and to pay interest, semi-annually on May 1 and November 1 of each year,
commencing May 1, 2000, on said principal sum at said office or agency, in like
coin or currency, at the rate per annum of 4 3/4%, from May 1 or November 1, as
the case may be, next preceding the date of this Note to which interest has been
paid or duly provided for, unless the date hereof is a date to which interest
has been paid or duly provided for, in which case from the date of this Note, or
unless no interest has been paid or duly provided for on the Notes, in which
case from November 3, 1999, until payment of said principal sum has been made or
duly provided for.  Notwithstanding the foregoing, if the date hereof is after
any April 15 or October 15, as the case may be, and before the following May 1
or November 1, this Note shall bear interest from such May 1 or November 1;
PROVIDED, HOWEVER, that if the Company shall default in the payment of interest
due on such May 1 or November 1, then this Note shall bear interest from the
next preceding May 1 or November 1 to which interest has been paid or duly
provided for or, if no interest has been paid or duly provided for on such Note,
from November 3, 1999.  Except as otherwise provided in the Indenture, the
interest payable on the Note pursuant to the Indenture on any May 1 or
November 1 will be paid to the Person entitled thereto as it appears in the Note
register at the close of business on the record date, which shall be the
April 15 or October 15 (whether or not a Business Day) next preceding such May 1
or November 1, as provided in the Indenture; provided, however, that any such
interest not punctually paid or duly provided for shall be payable as provided
in the Indenture.  Interest may, at the option of the Company, be paid either
(i) by check mailed to the registered address of such Person (provided that the
holder of Notes with an aggregate principal amount in excess of $2,000,000
shall, at the written election of such holder, be paid by wire transfer of
immediately available funds) or (ii) by transfer to an account maintained by
such Person located in the United States; PROVIDED, HOWEVER, that payments to
the Depositary will be made by wire transfer of immediately available funds to
the account of the Depositary or its nominee.

       Reference is made to the further provisions of this Note set forth on the
reverse hereof, including, without limitation, provisions subordinating the
payment of principal of and premium, if any, and interest on the Notes to the
prior payment in full of all Senior Indebtedness, as defined in the Indenture,
and provisions giving the holder of this Note the right to convert this Note
into Common Stock of the Company on the terms and subject to the limitations
referred to on the reverse hereof and as more fully specified in the Indenture.
Such further provisions shall for all purposes have the same effect as though
fully set forth at this place.

                                  A-3
<PAGE>

       This Note shall be deemed to be a contract made under the laws of the
State of New York, and for all purposes shall be construed in accordance with
and governed by the laws of the State of New York, without regard to principles
of conflicts of laws.

       This Note shall not be valid or become obligatory for any purpose until
the certificate of authentication hereon shall have been manually signed by the
Trustee or a duly authorized authenticating agent under the Indenture.

       IN WITNESS WHEREOF, the Company has caused this Note to be duly executed.

                                              LATTICE SEMICONDUCTOR CORPORATION


                                              By:______________________________

                                              Name:____________________________

                                              Title:___________________________


Attest:_________________________

Name:___________________________

Title:__________________________

Dated:__________________________


TRUSTEE'S CERTIFICATE OF AUTHENTICATION

This is one of the Notes described in the within-named Indenture.

STATE STREET BANK AND TRUST COMPANY OF CALIFORNIA, N.A., as Trustee


[By:________________________________
   Name:
   Title:


                           ,or


By:_________________________________]
     As Authenticating Agent
     (if different from Trustee)


                                  A-4
<PAGE>


                              FORM OF REVERSE OF NOTE

                         LATTICE SEMICONDUCTOR CORPORATION

                   4 3/4% CONVERTIBLE SUBORDINATED NOTE DUE 2006

       This Note is one of a duly authorized issue of Notes of the Company,
designated as its 4 3/4% Convertible Subordinated Notes due 2006 (herein called
the "Notes"), limited to the aggregate principal amount of $260,000,000 all
issued or to be issued under and pursuant to an Indenture dated as of November
1, 1999 (herein called the "Indenture"), between the Company and State Street
Bank and Trust Company of California, N.A., as trustee (herein called the
"Trustee"), to which Indenture and all indentures supplemental thereto reference
is hereby made for a description of the rights, limitations of rights,
obligations, duties and immunities thereunder of the Trustee, the Company and
the holders of the Notes.

       In case an Event of Default (as defined in the Indenture) shall have
occurred and be continuing, the principal of, premium, if any, and accrued
interest (including Liquidated Damages (as defined in the Registration Rights
Agreement), if any) on all Notes may be declared by either the Trustee or the
holders of not less than 25% in aggregate principal amount of the Notes then
outstanding, and upon said declaration shall become, due and payable, in the
manner, with the effect and subject to the conditions provided in the Indenture.

       The Indenture contains provisions permitting the Company and the Trustee,
with the consent of the holders of not less than a majority in aggregate
principal amount of the Notes at the time outstanding, to execute supplemental
indentures adding any provisions to or changing in any manner or eliminating any
of the provisions of the Indenture or of any supplemental indenture or modifying
in any manner the rights of the holders of the Notes; PROVIDED, HOWEVER, that no
such supplemental indenture shall (i) extend the fixed maturity of any Note, or
reduce the rate or extend the time of payment of interest thereon, or reduce the
principal amount thereof or premium, if any, thereon, or reduce any amount
payable upon redemption thereof, or impair the right of any Noteholder to
institute suit for the payment thereof, or make the principal thereof or
interest or premium, if any, thereon payable in any coin or currency other than
that provided in the Notes, or modify the provisions of the Indenture with
respect to the subordination of the Notes in a manner adverse to the Noteholders
in any material respect, or change the obligation of the Company to redeem any
Note upon the happening of a Fundamental Change (as defined in the Indenture) in
a manner adverse to the holder of the Notes, or impair the right to convert the
Notes into Common Stock subject to the terms set forth in the Indenture,
including Section 15.6 thereof, without the consent of the holder of each Note
so affected or (ii) reduce the aforesaid percentage of Notes, the holders of
which are required to consent to any such supplemental indenture, without the
consent of the holders of all Notes then outstanding.  Subject to the provisions
of the Indenture, the holders of a majority in aggregate principal amount of the
Notes at the time outstanding may on behalf of the holders of all of the Notes
waive any past default or Event of Default under the Indenture and its
consequences except a default in the payment of interest (including Liquidated
Damages, if any) or any premium on, or the principal of, any of the Notes, or a
failure by the Company to convert any Notes into Common Stock of the Company, or
a default in the payment of the redemption price pursuant to Article Three of
the Indenture, or a default in respect of a covenant or provisions of the
Indenture which under Article Eleven of the Indenture cannot be modified without
the consent of the holders of each or all Notes then outstanding or affected
thereby.  Any such consent or waiver by the holder of this Note (unless revoked
as provided in the Indenture) shall be conclusive and binding upon such holder
and upon all future holders


                                  A-5
<PAGE>

and owners of this Note and any Notes which may be issued in exchange or
substitution hereof, irrespective of whether or not any notation thereof is
made upon this Note or such other Notes.

       The indebtedness evidenced by the Notes is, to the extent and in the
manner provided in the Indenture, expressly subordinated and subject in right of
payment to the prior payment in full of all Senior Indebtedness of the Company,
whether outstanding at the date of the Indenture or thereafter incurred, and
this Note is issued subject to the provisions of the Indenture with respect to
such subordination.  Each holder of this Note, by accepting the same, agrees to
and shall be bound by such provisions and authorizes the Trustee on its behalf
to take such action as may be necessary or appropriate to effectuate the
subordination so provided and appoints the Trustee his attorney-in-fact for such
purpose.

       No reference herein to the Indenture and no provision of this Note or of
the Indenture shall alter or impair the obligation of the Company, which is
absolute and unconditional, to pay the principal of and any premium and interest
(including Liquidated Damages, if any) on this Note at the place, at the
respective times, at the rate and in the coin or currency herein prescribed.

       Interest on the Notes shall be computed on the basis of a 360-day year of
twelve 30-day months.

       The Notes are issuable in fully registered form, without coupons, in
denominations of $1,000 principal amount and any integral multiple of $1,000.
At the office or agency of the Company referred to on the face hereof, and in
the manner and subject to the limitations provided in the Indenture, without
payment of any service charge but with payment of a sum sufficient to cover any
tax, assessment or other governmental charge that may be imposed in connection
with any registration or exchange of Notes, Notes may be exchanged for a like
aggregate principal amount of Notes of any other authorized denominations.

       The Notes will not be redeemable at the option of the Company prior to
November 6, 2002.  At any time on or after November 6, 2002, and prior to
maturity, the Notes may be redeemed at the option of the Company, in whole or in
part, upon mailing a notice of such redemption not less than 30 days but not
more than 60 days before the date fixed for redemption to the holders of Notes
at their last registered addresses, all as provided in the Indenture, at the
following optional redemption prices (expressed as percentages of the principal
amount), together in each case with accrued and unpaid interest (including
Liquidated Damages, if any) to, but excluding, the date fixed for redemption:


<TABLE>
<CAPTION>

PERIOD                                                           REDEMPTION PRICE
- ------                                                           ----------------
<S>                                                              <C>

 Beginning on November 6, 2002 and ending on October 31, 2003...  102.71%
 Beginning on November 1, 2003 and ending on October 31, 2004...  102.04
 Beginning on November 1, 2004 and ending on October 31, 2005...  101.36
 Beginning on November 1, 2005 and ending on October 31, 2006...  100.68
</TABLE>

and 100% on November 1, 2006; provided, however, that if the date fixed for
redemption is on a May 1 or November 1, then the interest payable on such date
shall be paid to the holder of record on the preceding April 15 or October 15,
respectively.

       The Company may not give notice of any redemption of the Notes if a
default in the payment of interest or premium, if any, on the Notes has occurred
and is continuing.

       The Notes are not subject to redemption through the operation of any
sinking fund.

                                  A-6
<PAGE>

       If a Fundamental Change occurs at any time prior to maturity of the
Notes, the Notes will be redeemable on the 30th day after notice thereof (the
"Repurchase Date") at the option of the holder of the Notes at a redemption
price equal to 100% of the principal amount thereof, together with accrued
interest to (but excluding) the date of redemption; provided, however, that, if
such Repurchase Date is a May 1 or November 1, the interest payable on such date
shall be paid to the holder of record of the Notes on the preceding April 15 or
October 15, respectively.  The Notes will be redeemable in multiples of
$1,000 principal amount.  The Company shall mail to all holders of record of the
Notes a notice of the occurrence of a Fundamental Change and of the redemption
right arising as a result thereof on or before the 10th day after the occurrence
of such Fundamental Change.  For a Note to be so redeemed at the option of the
holder, the Company must receive at the office or agency of the Company
maintained for that purpose in accordance with the terms of the Indenture, such
Note with the form entitled "Option to Elect Repayment Upon a Fundamental
Change" on the reverse thereof duly completed, together with such Note, duly
endorsed for transfer, on or before the 30th day after the date of such notice
of a Fundamental Change (or if such 30th day is not a Business Day, the
immediately succeeding Business Day).

       Subject to the provisions of the Indenture, the holder hereof has the
right, at its option, at any time after the original issuance of any Notes
through the close of business on the final maturity date of the Notes, or, as to
all or any portion hereof called for redemption, prior to the close of business
on the Business Day immediately preceding the date fixed for redemption (unless
the Company shall default in payment due upon redemption thereof), to convert
the principal hereof or any portion of such principal which is $1,000 or an
integral multiple thereof into that number of shares of the Company's Common
Stock (as such shares shall be constituted at the date of conversion) obtained
by dividing the principal amount of this Note or portion thereof to be converted
by the Conversion Price of $41.440, as may adjusted from time to time as
provided in the Indenture, upon surrender of this Note, together with a
conversion notice as provided in the Indenture (the form entitled "Conversion
Notice" on the reverse hereof), to the Company at the office or agency of the
Company maintained for that purpose in accordance with the terms of the
Indenture, or at the option of such holder, the Corporate Trust Office, and,
unless the shares issuable on conversion are to be issued in the same name as
this Note, duly endorsed by, or accompanied by instruments of transfer in form
satisfactory to the Company duly executed by, the holder or by his duly
authorized attorney.  No adjustment in respect of interest on any Note converted
or dividends on any shares issued upon conversion of such Note will be made upon
any conversion except as set forth in the next sentence.  If this Note (or
portion hereof) is surrendered for conversion during the period from the close
of business on any record date for the payment of interest to the close of
business on the Business Day preceding the following interest payment date and
either (x) has not been called for redemption on a redemption date that occurs
during such period or (y) is not to be redeemed in connection with a Fundamental
Change on a Repurchase Date that occurs during such period, this Note (or
portion hereof being converted) must be accompanied by an amount, in New York
Clearing House funds or other funds acceptable to the Company, equal to the
interest payable on such interest payment date on the principal amount being
converted; provided, however, that no such payment shall be required if there
shall exist at the time of conversion a default in the payment of interest on
the Notes.  No fractional shares will be issued upon any conversion, but an
adjustment and payment in cash will be made, as provided in the Indenture, in
respect of any fraction of a share which would otherwise be issuable upon the
surrender of any Note or Notes for conversion.  A Note in respect of which a
holder is exercising its right to require redemption upon a Fundamental Change
may be converted only if such holder withdraws its election to exercise such
right in accordance with the terms of the Indenture.  Any Notes called for
redemption, unless surrendered for conversion by the holders thereof on or
before the close of business on the Business Day preceding the date fixed for
redemption, may be deemed to be redeemed from the holders of such Notes for an
amount equal to the applicable redemption price, together with accrued but
unpaid interest (including Liquidated Damages, if any) to (but excluding) the
date fixed for redemption, by one or more investment

                                  A-7
<PAGE>

banks or other purchasers who may agree with the Company (i) to purchase such
Notes from the holders thereof and convert them into shares of the Company's
Common Stock and (ii) to make payment for such Notes as aforesaid to the
Trustee in trust for the holders.

       Upon due presentment for registration of transfer of this Note at the
office or agency of the Company maintained for that purpose in accordance with
the terms of the Indenture, a new Note or Notes of authorized denominations for
an equal aggregate principal amount will be issued to the transferee in exchange
thereof; subject to the limitations provided in the Indenture, without charge
except for any tax, assessment or other governmental charge imposed in
connection therewith.

       The Company, the Trustee, any authenticating agent, any paying agent, any
conversion agent and any Note registrar may deem and treat the registered holder
hereof as the absolute owner of this Note (whether or not this Note shall be
overdue and notwithstanding any notation of ownership or other writing hereon
made by anyone other than the Company or any Note registrar) for the purpose of
receiving payment hereof, or on account hereof, for the conversion hereof and
for all other purposes, and neither the Company nor the Trustee nor any other
authenticating agent nor any paying agent nor other conversion agent nor any
Note registrar shall be affected by any notice to the contrary.  All payments
made to or upon the order of such registered holder shall, to the extent of the
sum or sums paid, satisfy and discharge liability for monies payable on this
Note.

       No recourse for the payment of the principal of or any premium or
interest on this Note, or for any claim based hereon or otherwise in respect
hereof, and no recourse under or upon any obligation, covenant or agreement of
the Company in the Indenture or any supplemental indenture or in any Note, or
because of the creation of any indebtedness represented thereby, shall be had
against any incorporator, stockholder, employee, agent, officer or director or
subsidiary, as such, past, present or future, of the Company or of any successor
corporation, either directly or through the Company or any successor
corporation, whether by virtue of any constitution, statute or rule of law or by
the enforcement of any assessment or penalty or otherwise, all such liability
being, by acceptance hereof and as part of the consideration for the issue
hereof, expressly waived and released.

       This Note shall be deemed to be a contract made under the laws of New
York, and for all purposes shall be construed in accordance with the laws of New
York, without regard to principles of conflicts of laws.

       Terms used in this Note and defined in the Indenture are used herein as
therein defined.

                                  A-8
<PAGE>

                             ABBREVIATIONS

       The following abbreviations, when used in the inscription of the face of
this Note, shall be construed as though they were written out in full according
to applicable laws or regulations.

TEN COM -  as tenants in common        UNIF GIFT MIN ACT - _____ Custodian _____
TEN ENT -  as tenant by the entireties (Cust)             (Minor)
JT TEN -   as joint tenants with right
           of survivorship and not as  under Uniform Gifts to Minors Act
           tenants in common           _________________________________________
                                                        (State)

       Additional abbreviations may also be used though not in the above list.

                                  A-9
<PAGE>

                             CONVERSION NOTICE

TO:    LATTICE SEMICONDUCTOR CORPORATION
       STATE STREET BANK AND TRUST COMPANY OF CALIFORNIA, N.A.

       The undersigned registered owner of this Note hereby irrevocably
exercises the option to convert this Note, or the portion thereof (which is
$1,000 or an integral multiple thereof) below designated, into shares of Common
Stock of Lattice Semiconductor Corporation in accordance with the terms of the
Indenture referred to in this Note, and directs that the shares issuable and
deliverable upon such conversion, together with any check in payment for
fractional shares and any Notes representing any unconverted principal amount
hereof, be issued and delivered to the registered holder hereof unless a
different name has been indicated below.  If shares or any portion of this Note
not converted are to be issued in the name of a person other than the
undersigned, the undersigned will provide the appropriate information below and
pay all transfer taxes payable with respect thereto.  Any amount required to be
paid by the undersigned on account of interest accompanies this Note.

Dated: ___________________



       _____________________________

       _____________________________
       Signature(s)

       Signature(s) must be guaranteed by an "eligible guarantor institution"
       meeting the requirements of the Note registrar, which requirements
       include membership or participation in the Security Transfer Agent
       Medallion Program ("STAMP") or such other "signature guarantee program"
       as may be determined by the Note registrar in addition to, or in
       substitution for, STAMP, all in accordance with the Securities Exchange
       Act of 1934, as amended.

       _______________________________
       Signature Guarantee

       Fill in the registration of shares of Common Stock if to be issued, and
Notes if to be delivered, other than to and in the name of the registered
holder:

_____________________________________
(Name)

_____________________________________
(Street Address)

_____________________________________
(City, State and Zip Code)


                                  A-10
<PAGE>

_____________________________________
Please print name and address

Principal amount to be converted
(if less than all):


$____________________________________
Social Security or Other Taxpayer
Identification Number:


_____________________________________


                                   A-11
<PAGE>


                     OPTION TO ELECT REPAYMENT

                     UPON A FUNDAMENTAL CHANGE

TO:    LATTICE SEMICONDUCTOR CORPORATION
       STATE STREET BANK AND TRUST COMPANY OF CALIFORNIA, N.A.

       The undersigned registered owner of this Note hereby irrevocably
acknowledges receipt of a notice from Lattice Semiconductor Corporation (the
"Company") as to the occurrence of a Fundamental Change with respect to the
Company and requests and instructs the Company to repay the entire principal
amount of this Note, or the portion thereof (which is $1,000 or an integral
multiple thereof) below designated, in accordance with the terms of the
Indenture referred to in this Note at the price of 100% of such entire
principal amount or portion thereof, together with accrued interest to, but
excluding, such repayment date, to the registered holder hereof.

Dated: ________________


                                         _______________________________________

                                         _______________________________________
                                         Signature(s)

                                            NOTICE:  The above signatures of
                                            the holder(s) hereof must correspond
                                            with the name as written upon the
                                            face of the Note in every particular
                                            without alteration or enlargement or
                                            any change whatever.

                                            Principal amount to be repaid (if
                                            less than all):

                                            $_________________________________

                                            __________________________________
                                            Social Security or Other
                                            Taxpayer Identification Number


                                    A-12


<PAGE>


                                ASSIGNMENT

     For value received __________________________________________ hereby
sell(s) assign(s) and transfer(s) unto _____________________________________
(Please insert social security or other Taxpayer Identification Number of
assignee) the within Note, and hereby irrevocably constitutes and appoints
____________________________________ attorney to transfer said Note on the
books of the Company, with full power of substitution in the premises.

       In connection with any transfer of the Note prior to the expiration of
the holding period applicable to sales thereof under Rule 144(k) under the
Securities Act (or any successor provision) (other than any transfer pursuant
to a registration statement that has been declared effective under the
Securities Act), the undersigned confirms that such Note is being
transferred:

       [ ]    To Lattice Semiconductor Corporation or a subsidiary thereof; or

       [ ]    Inside the United States pursuant to and in compliance with Rule
              144A under the Securities Act of 1933, as amended; or

       [ ]    Inside the United States to an Institutional Accredited Investor
              pursuant to and in compliance with the Securities Act of 1933, as
              amended, in a minimum denomination of $100,000; or

       [ ]    Outside the Unites States in compliance with Rule 904 under the
              Securities Act; or

       [ ]    Pursuant to and in compliance with Rule 144 under the Securities
              Act of 1933, as amended;

and unless the box below is checked, the undersigned confirms that such Note
is not being transferred to an "affiliate" of the Company as defined in Rule
144 under the Securities Act of 1933, as amended (an "Affiliate").

       [ ]    The transferee is an Affiliate of the Company.

Dated: ___________________


                                            __________________________________

                                            __________________________________
                                            Signature(s)

                                            Signature(s) must be guaranteed by
                                            an "eligible guarantor institution"
                                            meeting the requirements of the Note
                                            registrar, which requirements
                                            include membership or participation
                                            in the Security Transfer Agent
                                            Medallion Program ("STAMP") or such
                                            other "signature guarantee program"
                                            as may be determined by the Note
                                            registrar in addition to, or in
                                            substitution for, STAMP, all in
                                            accordance with the Securities
                                            Exchange Act of 1934, as amended.


                                     A-13


<PAGE>



                                           ___________________________________
                                           Signature Guarantee

NOTICE:  The signature of the conversion notice, the option to elect
repayment upon a Fundamental Change or the assignment must correspond with
the name as written upon the face of the Note in every particular without
alteration or enlargement or any change whatever.



                                     A-14


<PAGE>


                                   EXHIBIT B

Lattice Semiconductor Corporation
5555 N.E. Moore Court
Hillsboro, Oregon  97124-6421

State Street Bank and Trust Company of California, N.A., as Trustee
633 West 5th Street
12th Floor
Los Angeles, California  90071
Attention:  Corporate Trust Administration

Ladies and Gentlemen:

       In connection with our proposed purchase of 4 3/4% Convertible
Subordinated Notes due 2006 (the "Notes") of Lattice Semiconductor
Corporation, a Delaware corporation (the "Company") we confirm that:

              (i)     we are an "accredited investor" within the meaning of
Rule 501(a)(1), (2) or (3) under the Securities Act of 1933, as amended (the
"Securities Act"), or an entity in which all of the equity owners are
accredited investors within the meaning of Rule 501(a)(1), (2) or (3) under
the Securities Act (an "Institutional Accredited Investor");

              (ii)    (A) any purchase of Notes by us will be for our own
account or for the account of one or more other Institutional Accredited
Investors or as fiduciary for the account of one or more trusts, each of
which is an "accredited investor" within the meaning of Rule 501(a)(7) under
the Securities Act and for each of which we exercise sole investment
discretion or (B) we are a "bank," within the meaning of Section 3(a)(2) of
the Securities Act, or a "savings and loan association" or other institution
described in Section 3(a)(5)(A) of the Securities Act that is acquiring Notes
as fiduciary for the account of one or more institutions for which we
exercise sole investment discretion;

              (iii)   the event that we purchase any Notes, we will acquire
Notes having a minimum purchase price of not less than $100,000 for our own
account or for any separate account for which we are acting;

              (iv)    we have such knowledge and experience in financial and
business matters that we are capable of evaluating the merits and risks of
purchasing Notes; and

              (v)     we are not acquiring Notes with a view to distribution
thereof or with any present intention of offering or selling Notes or the
Common Stock of the Company issuable upon conversion thereof, except as
permitted below; provided that the disposition of our property and property
of any accounts for which we are acting as fiduciary shall remain at all
times within our control.

       We understand that the Notes are being offered in a transaction not
involving any public offering within the United States within the meaning of
the Securities Act and that the Notes and the Common Stock of the Company
issuable upon conversion thereof have not been registered under the
Securities Act, and we agree, on our own behalf and on behalf of each account
for which we acquire any Notes, that if in the future we decide to resell or
otherwise transfer such Notes or the Common Stock of the Company issuable
upon conversion thereof, such Notes or Common Stock of the Company may be
resold or otherwise transferred


<PAGE>


only (i) to the Company or any subsidiary thereof, (ii) inside the United
States to a person who is a "qualified institutional buyer" (as defined in
Rule 144A under the Securities Act) in a transaction meeting the requirements
of Rule 144A, (iii) inside the United States to an Institutional Accredited
Investor that, prior to such transfer, furnishes to the Trustee for the Notes
(or in the case of Common Stock of the Company, the transfer agent therefor)
a signed letter containing certain representations and agreements relating to
the restrictions on transfer of such securities (the form of which letter can
be obtained from the Trustee or the transfer agent, as the case may be), (iv)
outside the United States in a transaction meeting the requirements of Rule
904 under the Securities Act, (v)pursuant to the exemption from registration
provided by Rule 144 under the Securities Act (if applicable), or (vi)
pursuant to a registration statement that has been declared effective under
the Securities Act (and which continues to be effective at the time of such
transfer), and in each case, in accordance with any applicable securities law
of any state of the United States and in accordance with the legends set
forth on the Notes or the Common Stock of the Company issuable upon
conversion thereof.  We further agree to provide any person purchasing any of
the Notes or the Common Stock of the Company issuable upon coversion thereof
(other than pursuant to clause (v) or (vi) above) from us a notice advising
such purchaser that resales of such securities are restricted as stated
herein.  We understand that the Trustee and transfer agent for the Notes and
the Common Stock of the Company will not be required to accept for
registration of transfer any Notes or any Common Stock of the Company issued
upon conversion of the Notes, except upon presentation of evidence
satisfactory to the Company that the foregoing restrictions on transfer have
been complied with.  We further understand that any Notes and any Common
Stock of the Company issued upon conversion of the Notes will be in the form
of definitive physical certificates and that such certificates will bear a
legend reflecting the substance of this paragraph other than certificates
transferred pursuant to (v) or (vi) above.

       The Company and the Trustee and their respective counsel are entitled
to rely upon this letter and are irrevocably authorized to produce this
letter or a copy hereof to any interested party in any administrative or
legal proceeding or official inquiry with respect to the matters covered
hereby.

       THIS LETTER SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH,
THE INTERNAL LAWS OF THE STATE OF NEW YORK.

                                     (Name of Purchaser)

                                     By:______________________________________
                                     Name:____________________________________
                                     Title:___________________________________

                                     Address:_________________________________
                                     _________________________________________
                                     _________________________________________


                                     B-2



<PAGE>

                                                                    EXHIBIT 4.2

                          REGISTRATION RIGHTS AGREEMENT




                                  BY AND AMONG


                        LATTICE SEMICONDUCTOR CORPORATION

                                   AS ISSUER,


                                       AND


                       MORGAN STANLEY & CO. INCORPORATED,

                              GOLDMAN SACHS & CO.,

                       BANCBOSTON ROBERTSON STEPHENS INC.

                                       AND

                              ABN AMRO INCORPORATED

                              AS INITIAL PURCHASERS




                          DATED AS OF NOVEMBER 3, 1999


<PAGE>

         THIS REGISTRATION RIGHTS AGREEMENT is made and entered into as of
November 3, 1999 by and among Lattice Semiconductor Corporation, a Delaware
corporation (the "COMPANY"), and Morgan Stanley & Co. Incorporated, Goldman
Sachs & Co., BancBoston Robertson Stephens Inc. and ABN AMRO Incorporated
pursuant to the Purchase Agreement, dated October 28, 1999 (the "PURCHASE
AGREEMENT"), among the Company and the Initial Purchasers. In order to induce
the Initial Purchasers to enter into the Purchase Agreement, the Company has
agreed to provide the registration rights set forth in this Agreement. The
execution of this Agreement is a condition to the closing under the Purchase
Agreement.

         The Company agrees with the Initial Purchasers, (i) for their
benefit as Initial Purchasers and (ii) for the benefit of the beneficial
owners (including the Initial Purchasers) from time to time of the Notes (as
defined herein) and the beneficial owners from time to time of the Underlying
Common Stock (as defined herein) issued upon conversion of the Notes (each of
the foregoing a "HOLDER" and together the "HOLDERS"), as follows:

         SECTION 1. DEFINITIONS. Capitalized terms used herein without
definition shall have their respective meanings set forth in the Purchase
Agreement. As used in this Agreement, the following terms shall have the
following meanings:

         "AFFILIATE" means with respect to any specified person, an
"affiliate," as defined in Rule 144, of such person.

         "AMENDMENT EFFECTIVENESS DEADLINE DATE" has the meaning set forth in
Section 2(d) hereof.

         "APPLICABLE CONVERSION PRICE" as of any date of determination means
the Conversion Price in effect as of such date of determination or, if no
Notes are then outstanding, the Conversion Price that would be in effect were
Notes then outstanding.

         "BUSINESS DAY" means each Monday, Tuesday, Wednesday, Thursday and
Friday that is not a day on which banking institutions in The City of New
York are authorized or obligated by law or executive order to close.

         "COMMON STOCK" means the shares of common stock, par value $1.00 per
share, of the Company and any other shares of common stock as may constitute
"Common Stock" for purposes of the Indenture, including the Underlying Common
Stock.

         "CONVERSION PRICE" has the meaning assigned such term in the
Indenture.

         "DAMAGES ACCRUAL PERIOD" has the meaning set forth in Section 2(e)
hereof.


                                       2
<PAGE>

         "DAMAGES PAYMENT DATE" means each interest payment date under the
Indenture in the case of Notes, and each May 1 and November 1 in the case of
the Underlying Common Stock.

         "DEFERRAL NOTICE" has the meaning set forth in Section 3(i) hereof.

         "DEFERRAL PERIOD" has the meaning set forth in Section 3(i) hereof.

         "EFFECTIVENESS DEADLINE DATE" has the meaning set forth in Section
2(a) hereof.

         "EFFECTIVENESS PERIOD" means the period commencing on the date
hereof and ending on the date that all Registrable Securities have ceased to
be Registrable Securities.

         "EVENT" has the meaning set forth in Section 2(e) hereof.

         "EVENT DATE" has the meaning set forth in Section 2(e) hereof.

         "EVENT TERMINATION DATE" has the meaning set forth in Section 2(e)
hereof.

         "EXCHANGE ACT" means the Securities Exchange Act of 1934, as
amended, and the rules and regulations of the SEC promulgated thereunder.

         "FILING DEADLINE DATE" has the meaning set forth in Section 2(a)
hereof.

         "HOLDER" has the meaning set forth in the second paragraph of this
Agreement.

         "INDENTURE" means the Indenture, dated as of November 3, 1999,
between the Company and State Street Bank and Trust Company of California,
N.A., as trustee, pursuant to which the Notes are being issued.

         "INITIAL PURCHASERS" means Morgan Stanley & Co. Incorporated,
Goldman Sachs & Co., BancBoston Robertson Stephens Inc. and ABN AMRO
Incorporated.

         "INITIAL SHELF REGISTRATION STATEMENT" has the meaning set forth in
Section 2(a) hereof.

         "ISSUE DATE" means the first date of original issuance of the Notes.

         "LIQUIDATED DAMAGES AMOUNT" has the meaning set forth in Section
2(e) hereof.

         "LOSSES" has the meaning set forth in Section 6 hereof.

         "MATERIAL EVENT" has the meaning set forth in Section 3(i) hereof.

         "NOTES" means the 4 3/4% Convertible Subordinated Notes due 2006 of
the Company to be purchased pursuant to the Purchase Agreement.


                                       3
<PAGE>

         "NOTICE AND QUESTIONNAIRE" means a written notice delivered to the
Company containing substantially the information called for by the Selling
Securityholder Notice and Questionnaire attached as Annex B to the Offering
Memorandum of the Company issued October 28, 1999 relating to the Notes.

         "NOTICE HOLDER" means, on any date, any Holder that has delivered a
Notice and Questionnaire to the Company on or prior to such date.

         "PURCHASE AGREEMENT" has the meaning set forth in the preamble
hereof.

         "PROSPECTUS" means the prospectus included in any Registration
Statement (including, without limitation, a prospectus that discloses
information previously omitted from a prospectus filed as part of an
effective registration statement in reliance upon Rule 430A promulgated under
the Securities Act), as amended or supplemented by any amendment or
prospectus supplement, including post-effective amendments, and all materials
incorporated by reference or explicitly deemed to be incorporated by
reference in such Prospectus.

         "RECORD HOLDER" means (i) with respect to any Damages Payment Date
relating to any Notes as to which any such Liquidated Damages Amount has
accrued, the holder of record of such Note on the record date with respect to
the interest payment date under the Indenture on which such Damages Payment
Date shall occur and (ii) with respect to any Damages Payment Date relating
to the Underlying Common Stock as to which any such Liquidated Damages Amount
has accrued, the registered holder of such Underlying Common Stock fifteen
(15) days prior to such Damages Payment Date.

         "REGISTRABLE SECURITIES" means the Notes until such Notes have been
converted into or exchanged for the Underlying Common Stock and, at all times
subsequent to any such conversion or exchange the Underlying Common Stock and
any securities into or for which such Underlying Common Stock has been
converted or exchanged, and any security issued with respect thereto upon any
stock dividend, split or similar event until, in the case of any such
security, (A) the earliest of (i) its effective registration under the
Securities Act and resale in accordance with the Registration Statement
covering it, (ii) expiration of the holding period that would be applicable
thereto, under Rule 144(k) or (iii) its sale to the public pursuant to Rule
144 (or any similar provision then in force, but not Rule 144A) under the
Securities Act, and (B) as a result of the event or circumstance described in
any of the foregoing clauses (i) through (iii), the legend with respect to
transfer restrictions required under the Indenture are removed or removable
in accordance with the terms of the Indenture or such legend, as the case may
be.

         "REGISTRATION EXPENSES" has the meaning set forth in Section 5
hereof.

         "REGISTRATION STATEMENT" means any registration statement of the
Company that covers any of the Registrable Securities pursuant to the
provisions of this Agreement including the Prospectus, amendments and
supplements to such registration statement, including post-effective


                                      4
<PAGE>

amendments, all exhibits, and all materials incorporated by reference or
explicitly deemed to be incorporated by reference in such registration
statement.

         "RESTRICTED SECURITIES" means "Restricted Securities" as defined in
Rule 144.

         "RULE 144" means Rule 144 under the Securities Act, as such Rule may
be amended from time to time, or any similar rule or regulation hereafter
adopted by the SEC.

         "RULE 144A" means Rule 144A under the Securities Act, as such Rule
may be amended from time to time, or any similar rule or regulation hereafter
adopted by the SEC.

         "SEC" means the Securities and Exchange Commission.

         "SECURITIES ACT" means the Securities Act of 1933, as amended, and
the rules and regulations promulgated by the SEC thereunder.

         "SHELF REGISTRATION STATEMENT" has the meaning set forth in Section
2(a) hereof.

         "SPECIAL COUNSEL" means Davis Polk & Wardwell or such other
successor counsel as shall be specified by the Holders of a majority of the
Registrable Securities, but which may, with the written consent of the
Initial Purchasers (which shall not be unreasonably withheld), be another
nationally recognized law firm experienced in securities law matters
designated by the Company, the reasonable fees and expenses of which will be
paid by the Company pursuant to Section 5 hereof.

         "SUBSEQUENT SHELF REGISTRATION STATEMENT" has the meaning set forth
in Section 2(b) hereof.

         "TIA" means the Trust Indenture Act of 1939, as amended.

         "TRUSTEE" means State Street Bank and Trust Company of California,
N.A., the Trustee under the Indenture.

         "UNDERLYING COMMON STOCK" means the Common Stock into which the
Notes are convertible or issued upon any such conversion.

         SECTION 2. SHELF REGISTRATION. (a) The Company shall use its best
efforts to prepare and file or cause to be prepared and filed with the SEC,
as soon as practicable but in any event by the date (the "FILING DEADLINE
DATE") ninety (90) days after the Issue Date, a Registration Statement for an
offering to be made on a delayed or continuous basis pursuant to Rule 415 of
the Securities Act (a "SHELF REGISTRATION STATEMENT") registering the resale
from time to time by Holders thereof of all of the Registrable Securities
(the "INITIAL SHELF REGISTRATION STATEMENT"). The Initial Shelf Registration
Statement shall be on Form S-3 or another appropriate form permitting
registration of such Registrable Securities for resale by such Holders in
accordance


                                       5
<PAGE>

with the methods of distribution elected by the Holders and set forth in the
Initial Shelf Registration Statement. The Company shall use its reasonable
efforts to cause the Initial Shelf Registration Statement to be declared
effective under the Securities Act as promptly as is practicable but in any
event by the date (the "EFFECTIVENESS DEADLINE DATE") that is one hundred
eighty (180) days after the Issue Date, and to keep the Initial Shelf
Registration Statement (or any Subsequent Shelf Registration Statement)
continuously effective under the Securities Act until the expiration of the
Effectiveness Period. At the time the Initial Shelf Registration Statement is
declared effective, each Holder that became a Notice Holder on or prior to
the date ten (10) Business Days prior to such time of effectiveness shall be
named as a selling securityholder in the Initial Shelf Registration Statement
and the related Prospectus in such a manner as to permit such Holder to
deliver such Prospectus to purchasers of Registrable Securities in accordance
with applicable law. None of the Company's security holders (other than the
Holders of Registrable Securities) shall have the right to include any of the
Company's securities in the Shelf Registration Statement.

           (b) If the Initial Shelf Registration Statement or any Subsequent
Shelf Registration Statement ceases to be effective for any reason at any
time during the Effectiveness Period (other than because all Registrable
Securities registered thereunder shall have been resold pursuant thereto or
shall have otherwise ceased to be Registrable Securities), the Company shall
use its reasonable efforts to obtain the prompt withdrawal of any order
suspending the effectiveness thereof, and in any event shall within thirty
(30) days of such cessation of effectiveness amend the Shelf Registration
Statement in a manner reasonably expected to obtain the withdrawal of the
order suspending the effectiveness thereof, or file an additional Shelf
Registration Statement covering all of the securities that as of the date of
such filing are Registrable Securities (a "SUBSEQUENT SHELF REGISTRATION
STATEMENT"). If a Subsequent Shelf Registration Statement is filed, the
Company shall use its reasonable efforts to cause the Subsequent Shelf
Registration Statement to become effective as promptly as is practicable
after such filing and to keep such Registration Statement (or subsequent
Shelf Registration Statement) continuously effective until the end of the
Effectiveness Period.

           (c) The Company shall supplement and amend the Shelf Registration
Statement if required by the rules, regulations or instructions applicable to
the registration form used by the Company for such Shelf Registration
Statement, if required by the Securities Act or as reasonably requested by
the Initial Purchasers or by the Trustee on behalf of the Holders of the
Registrable Securities covered by such Shelf Registration Statement.

           (d) Each Holder of Registrable Securities agrees that if such
Holder wishes to sell Registrable Securities pursuant to a Shelf Registration
Statement and related Prospectus, it will do so only in accordance with this
Section 2(d) and Section 3(i). Each Holder of Registrable Securities wishing
to sell Registrable Securities pursuant to a Shelf Registration Statement and
related Prospectus agrees to deliver a Notice and Questionnaire to the
Company at least three (3) Business Days prior to any intended distribution
of Registrable Securities under the Shelf


                                       6
<PAGE>

Registration Statement. From and after the date the Initial Shelf
Registration Statement is declared effective, the Company shall, as promptly
as practicable after the date a Notice and Questionnaire is delivered, and in
any event upon the later of (x) five (5) Business Days after such date or (y)
five (5) Business Days after the expiration of any Deferral Period in effect
when the Notice and Questionnaire is delivered or put into effect within five
(5) Business Days of such delivery date, (i) if required by applicable law,
file with the SEC a post-effective amendment to the Shelf Registration
Statement or prepare and, if required by applicable law, file a supplement to
the related Prospectus or a supplement or amendment to any document
incorporated therein by reference or file any other required document so that
the Holder delivering such Notice and Questionnaire is named as a selling
securityholder in the Shelf Registration Statement and the related Prospectus
in such a manner as to permit such Holder to deliver such Prospectus to
purchasers of the Registrable Securities in accordance with applicable law
and, if the Company shall file a post-effective amendment to the Shelf
Registration Statement, use its reasonable efforts to cause such
post-effective amendment to be declared effective under the Securities Act as
promptly as is practicable, but in any event by the date (the "AMENDMENT
EFFECTIVENESS DEADLINE DATE") that is forty-five (45) days after the date
such post-effective amendment is required by this clause to be filed; (ii)
provide such Holder copies of any documents filed pursuant to Section
2(d)(i); and (iii) notify such Holder as promptly as practicable after the
effectiveness under the Securities Act of any post-effective amendment filed
pursuant to Section 2(d)(i); PROVIDED, that if such Notice and Questionnaire
is delivered during a Deferral Period, the Company shall so inform the Holder
delivering such Notice and Questionnaire and shall take the actions set forth
in clauses (i), (ii) and (iii) above upon expiration of the Deferral Period
in accordance with Section 3(i). Notwithstanding anything contained herein to
the contrary, (i) the Company shall be under no obligation to name any Holder
that is not a Notice Holder as a selling securityholder in any Registration
Statement or related Prospectus and (ii) the Amendment Effectiveness Deadline
Date shall be extended by up to ten (10) Business Days from the expiration of
a Deferral Period (and the Company shall incur no obligation to pay
Liquidated Damages during such extension) if such Deferral Period shall be in
effect on the Amendment Effectiveness Deadline Date.

           (e) The parties hereto agree that the Holders of Registrable
Securities will suffer damages, and that it would not be feasible to
ascertain the extent of such damages with precision, if (i) the Initial Shelf
Registration Statement has not been filed on or prior to the Filing Deadline
Date, (ii) the Initial Shelf Registration Statement has not been declared
effective under the Securities Act on or prior to the Effectiveness Deadline
Date, (iii) the Company has failed to perform its obligations set forth in
Section 2(d) within the time period required therein, (iv) the aggregate
duration of Deferral Periods in any period exceeds the number of days
permitted in respect of such period pursuant to Section 3(i) hereof or (v)
the number of Deferral Periods in any period exceeds the number permitted in
respect of such period pursuant to Section 3(i) hereof (each of the events of
a type described in any of the foregoing clauses (i) through (v) are
individually referred to herein as an "EVENT," and the Filing Deadline Date
in the case of clause (i), the Effectiveness Deadline Date in the case of
clause (ii), the date by which the Company is required to perform its
obligations set forth in Section 2(d) in the case of clause (iii) (including


                                       7
<PAGE>

the filing of any post-effective amendment prior to the Amendment
Effectiveness Deadline Date), the date on which the aggregate duration of
Deferral Periods in any period exceeds the number of days permitted by
Section 3(i) hereof in the case of clause (iv), and the date of the
commencement of a Deferral Period that causes the limit on the number of
Deferral Periods in any period under Section 3(i) hereof to be exceeded in
the case of clause (v), being referred to herein as an "EVENT DATE"). Events
shall be deemed to continue until the "EVENT TERMINATION DATE," which shall
be the following dates with respect to the respective types of Events: the
date the Initial Shelf Registration Statement is filed in the case of an
Event of the type described in clause (i), the date the Initial Shelf
Registration Statement is declared effective under the Securities Act in the
case of an Event of the type described in clause (ii), the date the Company
performs its obligations set forth in Section 2(d) in the case of an Event of
the type described in clause (iii) (including, without limitation, the date
the relevant post-effective amendment to the Shelf Registration Statement is
declared effective under the Securities Act), termination of the Deferral
Period that caused the limit on the aggregate duration of Deferral Periods in
a period set forth in Section 3(i) to be exceeded in the case of the
commencement of an Event of the type described in clause (iv), and
termination of the Deferral Period the commencement of which caused the
number of Deferral Periods in a period permitted by Section 3(i) to be
exceeded in the case of an Event of the type described in clause (v).

         Accordingly, commencing on (and including) any Event Date and ending
on (but excluding) the next date on which there are no Events that have
occurred and are continuing (a "DAMAGES ACCRUAL PERIOD"), the Company agrees
to pay, as liquidated damages and not as a penalty, an amount (the
"LIQUIDATED DAMAGES AMOUNT"), payable on the Damages Payment Dates to Record
Holders of Notes that are Registrable Securities and of shares of Underlying
Common Stock issued upon conversion of Notes that are Registrable Securities,
as the case may be, accruing, for each portion of such Damages Accrual Period
beginning on and including a Damages Payment Date (or, in respect of the
first time that the Liquidated Damages Amount is to be paid to Holders on a
Damages Payment Date as a result of the occurrence of any particular Event,
from the Event Date) and ending on but excluding the first to occur of (A)
the date of the end of the Damages Accrual Period or (B) the next Damages
Payment Date, at a rate per annum equal to one-half of one percent (0.5 %) of
the aggregate principal amount of such Notes or, in the case of Notes that
have been converted into or exchanged for Underlying Common Stock, the
Applicable Conversion Price of such shares of Underlying Common Stock, as the
case may be, in each case determined as of the Business Day immediately
preceding the next Damages Payment Date; PROVIDED, that in the case of a
Damages Accrual Period that is in effect solely as a result of an Event of
the type described in clause (iii) of the immediately preceding paragraph,
such Liquidated Damages Amount shall be paid only to the Holders that have
delivered Notice and Questionnaires that caused the Company to incur the
obligations set forth in Section 2(d) the non-performance of which is the
basis of such Event, PROVIDED FURTHER, that any Liquidated Damages Amount
accrued with respect to any Note or portion thereof called for redemption on
a redemption date or converted into Underlying Common Stock on a conversion
date prior to the Damages Payment Date, shall, in any such event, be paid
instead to the Holder who submitted such Note or portion thereof for
redemption or conversion on the applicable redemption date or


                                       8
<PAGE>

conversion date, as the case may be, on such date (or promptly following the
conversion date, in the case of conversion). Notwithstanding the foregoing,
no Liquidated Damages Amounts shall accrue as to any Registrable Security
from and after the earlier of (x) the date such security is no longer a
Registrable Security and (y) expiration of the Effectiveness Period. The rate
of accrual of the Liquidated Damages Amount with respect to any period shall
not exceed the rate provided for in this paragraph notwithstanding the
occurrence of multiple concurrent Events. Following the cure of all Events
requiring the payment by the Company of Liquidated Damages Amounts to the
Holders of Registrable Securities pursuant to this Section, the accrual of
Liquidated Damages Amounts will cease (without in any way limiting the effect
of any subsequent Event requiring the payment of Liquidated Damages Amount by
the Company).

         The Trustee shall be entitled, on behalf of Holders of Notes or
Underlying Common Stock, to seek any available remedy for the enforcement of
this Agreement, including for the payment of any Liquidated Damages Amount.
Notwithstanding the foregoing, the parties agree that the sole damages
payable for a violation of the terms of this Agreement with respect to which
liquidated damages are expressly provided shall be such liquidated damages.
Nothing shall preclude a Notice Holder or Holder of Registrable Securities
from pursuing or obtaining specific performance or other equitable relief
with respect to this Agreement.

         All of the Company's obligations set forth in this Section 2(e) that
are outstanding with respect to any Registrable Security at the time such
security ceases to be a Registrable Security shall survive until such time as
all such obligations with respect to such security have been satisfied in
full (notwithstanding termination of this Agreement pursuant to Section 8(k)).

         The parties hereto agree that the liquidated damages provided for in
this Section 2(e) constitute a reasonable estimate of the damages that may be
incurred by Holders of Registrable Securities by reason of the failure of the
Shelf Registration Statement to be filed or declared effective or available
for effecting resales of Registrable Securities in accordance with the
provisions hereof.

         SECTION 3.  REGISTRATION PROCEDURES.  In connection with the
registration obligations of the Company under Section 2 hereof, the Company
shall:

                 (a) Prepare and file with the SEC a Registration Statement or
         Registration Statements on any appropriate form under the Securities
         Act available for the sale of the Registrable Securities by the Holders
         thereof in accordance with the intended method or methods of
         distribution thereof, and use its reasonable efforts to cause each such
         Registration Statement to become effective and remain effective as
         provided herein; PROVIDED, that before filing any Registration
         Statement or Prospectus or any amendments or supplements thereto with
         the SEC, furnish to the Initial Purchasers and the Special Counsel
         copies of all such documents proposed to be filed and use its best
         efforts to reflect in each such document when so filed with the SEC
         such comments as the Special


                                       9
<PAGE>

         Counsel reasonably shall propose within five (5) Business Days of the
         delivery of such copies to the Initial Purchasers and the Special
         Counsel.

              (b) Prepare and file with the SEC such amendments and
         post-effective amendments to each Registration Statement as may be
         necessary to keep such Registration Statement continuously effective
         for the applicable period specified in Section 2(a); cause the related
         Prospectus to be supplemented by any required Prospectus supplement,
         and as so supplemented to be filed pursuant to Rule 424 (or any similar
         provisions then in force) under the Securities Act; and use its best
         efforts to comply with the provisions of the Securities Act applicable
         to it with respect to the disposition of all securities covered by such
         Registration Statement during the Effectiveness Period in accordance
         with the intended methods of disposition by the sellers thereof set
         forth in such Registration Statement as so amended or such Prospectus
         as so supplemented.

              (c) As promptly as practicable give notice to the Notice Holders,
         the Initial Purchasers and the Special Counsel (i) when any Prospectus,
         Prospectus supplement, Registration Statement or post-effective
         amendment to a Registration Statement has been filed with the SEC and,
         with respect to a Registration Statement or any post-effective
         amendment, when the same has been declared effective, (ii) of any
         request, following the effectiveness of the Initial Shelf Registration
         Statement under the Securities Act, by the SEC or any other federal or
         state governmental authority for amendments or supplements to any
         Registration Statement or related Prospectus or for additional
         information, (iii) of the issuance by the SEC or any other federal or
         state governmental authority of any stop order suspending the
         effectiveness of any Registration Statement or the initiation or
         threatening of any proceedings for that purpose, (iv) of the receipt by
         the Company of any notification with respect to the suspension of the
         qualification or exemption from qualification of any of the Registrable
         Securities for sale in any jurisdiction or the initiation or
         threatening of any proceeding for such purpose, (v) of the occurrence
         of (but not the nature of or details concerning) a Material Event and
         (vi) of the determination by the Company that a post-effective
         amendment to a Registration Statement will be filed with the SEC, which
         notice may, at the discretion of the Company (or as required pursuant
         to Section 3 (i)), state that it constitutes a Deferral Notice, in
         which event the provisions of Section 3(i) shall apply.

              (d) Use reasonable efforts to obtain the withdrawal of any order
         suspending the effectiveness of a Registration Statement or the lifting
         of any suspension of the qualification (or exemption from
         qualification) of any of the Registrable Securities for sale in any
         jurisdiction in which they have been qualified for sale, in either case
         at the earliest possible moment, and provide prompt notice to each
         Notice Holder and the Initial Purchasers of the withdrawal of any such
         order.

              (e) If reasonably requested by the Initial Purchasers or any
         Notice Holder, as promptly as practicable incorporate in a Prospectus
         supplement or post-effective amendment to a Registration Statement such
         information as the Initial Purchasers, the Special Counsel or such
         Notice Holder shall, on the basis of a written opinion of

                                       10

<PAGE>

         nationally-recognized counsel experienced in such matters, determine to
         be required to be included therein by applicable law and make any
         required filings of such Prospectus supplement or such post-effective
         amendment.

              (f) As promptly as practicable furnish to each Notice Holder, the
         Special Counsel and the Initial Purchasers, without charge, at least
         one (1) conformed copy of the Registration Statement and any amendment
         thereto, including financial statements but excluding schedules, all
         documents incorporated or deemed to be incorporated therein by
         reference and all exhibits (unless requested in writing to the Company
         by such Notice Holder, Special Counsel, counsel or Initial Purchasers).

              (g) During the Effectiveness Period, deliver to each Notice
         Holder, the Special Counsel and the Initial Purchasers, in connection
         with any sale of Registrable Securities pursuant to a Registration
         Statement, without charge, as many copies of the Prospectus or
         Prospectuses relating to such Registrable Securities (including each
         preliminary prospectus) and any amendment or supplement thereto as
         such Notice Holder may reasonably request; and the Company hereby
         consents (except during such periods that a Deferral Notice is
         outstanding and has not been revoked) to the use of such Prospectus
         or each amendment or supplement thereto by each Notice Holder, in
         connection with any offering and sale of the Registrable Securities
         covered by such Prospectus or any amendment or supplement thereto in
         the manner set forth therein.

              (h) Prior to any public offering of the Registrable Securities
         pursuant to the Shelf Registration Statement, register or qualify or
         cooperate with the Notice Holders in connection with the registration
         or qualification (or exemption from such registration or qualification)
         of such Registrable Securities for offer and sale under the securities
         or Blue Sky laws of such jurisdictions within the United States as any
         Notice Holder reasonably requests in writing (which request may be
         included in the Notice and Questionnaire); prior to any public offering
         of the Registrable Securities pursuant to the Shelf Registration
         Statement, keep each such registration or qualification (or exemption
         therefrom) effective during the Effectiveness Period in connection with
         such Notice Holder's offer and sale of Registrable Securities pursuant
         to such registration or qualification (or exemption therefrom) and do
         any and all other acts or things reasonably necessary or advisable to
         enable the disposition in such jurisdictions of such Registrable
         Securities in the manner set forth in the relevant Registration
         Statement and the related Prospectus; PROVIDED, that the Company will
         not be required to (i) qualify as a foreign corporation or as a dealer
         in securities in any jurisdiction where it would not otherwise be
         required to qualify but for this Agreement or (ii) take any action that
         would subject it to general service of process in suits or to taxation
         in any such jurisdiction where it is not then so subject.

              (i) Upon (A) the issuance by the SEC of a stop order suspending
         the effectiveness of the Shelf Registration Statement or the
         initiation of proceedings with respect to the Shelf Registration
         Statement under Section 8(d) or 8(e) of the Securities Act, (B) the
         occurrence of any event or the existence of any fact (a "MATERIAL
         EVENT") as a result of which any Registration Statement shall contain
         any untrue statement of a


                                              11


<PAGE>

         material fact or omit to state any material fact required to be
         stated therein or necessary to make the statements therein not
         misleading, or any Prospectus shall contain any untrue statement of
         a material fact or omit to state any material fact required to be
         stated therein or necessary to make the statements therein, in the
         light of the circumstances under which they were made, not
         misleading, or (C) the occurrence or existence of any pending
         corporate development that, in the reasonable discretion of the
         Company, makes it appropriate to suspend the availability of the
         Shelf Registration Statement and the related Prospectus, (i) in the
         case of clause (B) above, subject to the next sentence, as promptly
         as practicable prepare and file, if necessary pursuant to applicable
         law, a post-effective amendment to such Registration Statement or a
         supplement to the related Prospectus or any document incorporated
         therein by reference or file any other required document that would
         be incorporated by reference into such Registration Statement and
         Prospectus so that such Registration Statement does not contain any
         untrue statement of a material fact or omit to state any material
         fact required to be stated therein or necessary to make the
         statements therein not misleading, and such Prospectus does not
         contain any untrue statement of a material fact or omit to state any
         material fact required to be stated therein or necessary to make the
         statements therein, in the light of the circumstances under which
         they were made, not misleading, as thereafter delivered to the
         purchasers of the Registrable Securities being sold thereunder, and,
         in the case of a post-effective amendment to a Registration
         Statement, subject to the next sentence, use its reasonable efforts
         to cause it to be declared effective as promptly as is practicable,
         and (ii) give notice to the Notice Holders and the Special Counsel
         that the availability of the Shelf Registration Statement is
         suspended (a "DEFERRAL NOTICE") and, upon receipt of any Deferral
         Notice, each Notice Holder agrees not to sell any Registrable
         Securities pursuant to the Registration Statement until such Notice
         Holder's receipt of copies of the supplemented or amended Prospectus
         provided for in clause (i) above, or until it is advised in writing
         by the Company that the Prospectus may be used, and has received
         copies of any additional or supplemental filings that are
         incorporated or deemed incorporated by reference in such Prospectus.
         The Company will use all reasonable efforts to ensure that the use
         of the Prospectus may be resumed (x) in the case of clause (A)
         above, as promptly as is practicable, (y) in the case of clause (B)
         above, as soon as, in the sole judgment of the Company, public
         disclosure of such Material Event would not be prejudicial to or
         contrary to the interests of the Company or, if necessary to avoid
         unreasonable burden or expense, as soon as practicable thereafter
         and (z) in the case of clause (C) above, as soon as, in the
         discretion of the Company, such suspension is no longer appropriate.
         The Company shall be entitled to exercise its right under this
         Section 3(i) to suspend the availability of the Shelf Registration
         Statement or any Prospectus, without incurring or accruing any
         obligation to pay liquidated damages pursuant to Section 2(e), no
         more than one (1) time in any three month period or four (4) times
         in any twelve month period, and any such period during which the
         availability of the Registration Statement and any Prospectus is
         suspended (the "DEFERRAL PERIOD") shall, without incurring any
         obligation to pay liquidated damages pursuant to Section 2(e), not

                                           12

<PAGE>


         exceed 30 days; PROVIDED, that in the case of a Material Event
         relating to an acquisition or a probable acquisition or financing,
         recapitalization, business combination or other similar transaction,
         the Company may, without incurring any obligation to pay liquidated
         damages pursuant to Section 2(e), deliver to Notice Holders a second
         notice to the effect set forth above, which shall have the effect of
         extending the Deferral Period by up to an additional 30 days, or
         such shorter period of time as is specified in such second notice,
         PROVIDED, that the aggregate duration of any Deferral Periods shall
         not, without incurring any obligation to pay liquidated damages
         pursuant to Section 2(e), exceed 30 days in any three month period
         (or 60 days in any three month period in the event of a Material
         Event pursuant to which the Company has delivered a second notice as
         required above) or 90 days in any twelve (12) month period.

              (j) If requested in writing in connection with a disposition of
         Registrable Securities pursuant to a Registration Statement, make
         reasonably available for inspection during normal business hours by a
         representative for the Notice Holders of such Registrable Securities,
         and any broker-dealers, attorneys and accountants retained by such
         Notice Holders, all relevant financial and other records and pertinent
         corporate documents and properties of the Company and its subsidiaries,
         and cause the appropriate officers, directors and employees of the
         Company and its subsidiaries to make reasonably available for
         inspection during normal business hours on reasonable notice all
         relevant information reasonably requested by such representative for
         the Notice Holders, Managing Underwriter, or any such broker-dealers,
         attorneys or accountants in connection with such disposition, in each
         case as is customary for similar "DUE DILIGENCE" examinations;
         PROVIDED, HOWEVER, that such persons shall first agree in writing with
         the Company that any information that is reasonably and in good faith
         designated by the Company in writing as confidential at the time of
         delivery of such information shall be kept confidential by such persons
         and shall be used solely for the purposes of exercising rights under
         this Agreement, unless (i) disclosure of such information is required
         by court or administrative order or is necessary to respond to
         inquiries of regulatory authorities, (ii) disclosure of such
         information is required by law (including any disclosure requirements
         pursuant to federal securities laws in connection with the filing of
         any Registration Statement or the use of any Prospectus referred to in
         this Agreement), (iii) such information becomes generally available to
         the public other than as a result of a disclosure or failure to
         safeguard by any such person or (iv) such information becomes available
         to any such person from a source other than the Company and such source
         is not bound by a confidentiality agreement, and PROVIDED, that the
         foregoing inspection and information gathering shall, to the greatest
         extent possible, be coordinated on behalf of all the Notice Holders and
         the other parties entitled thereto by the counsel referred to in
         Section 5 and PROVIDED FURTHER, that the Company shall not be required
         to disclose any information subject to the attorney-client or attorney
         work product privilege if and to the extent such disclosure would
         constitute a waiver of such privilege.

              (k) Use all reasonable efforts to comply with all applicable
         rules and regulations of the SEC and make generally available to its
         securityholders earning statements (which

                                       13

<PAGE>

         need not be audited) satisfying the provisions of Section 11(a)
         of the Securities Act and Rule 158 thereunder (or any similar rule
         promulgated under the Securities Act) no later than 45 days after the
         end of any 3-month period (or 90 days after the end of any 12-month
         period if such period is a fiscal year) commencing on the first day of
         the first fiscal quarter of the Company commencing after the effective
         date of a Registration Statement, which statements shall cover said
         periods.

           (l) Cooperate with each Notice Holder to facilitate the timely
preparation and delivery of certificates representing Registrable Securities
sold or to be sold pursuant to a Registration Statement, which certificates
shall not bear any restrictive legends, and cause such Registrable Securities to
be in such denominations as are permitted by the Indenture and registered in
such names as such Notice Holder may request in writing at least two (2)
Business Days prior to any sale of such Registrable Securities.

           (m) Provide a CUSIP number for all Registrable Securities covered by
each Registration Statement not later than the effective date of such
Registration Statement and provide the Trustee and the transfer agent for the
Common Stock with printed certificates for the Registrable Securities that are
in a form eligible for deposit with The Depository Trust Company.

           (n) Cooperate and assist in any filings required to be made with the
National Association of Securities Dealers, Inc.

           (o) Upon (i) the filing of the Initial Registration Statement and
(ii) the effectiveness of the Initial Registration Statement, announce the same,
in each case by release to Reuters Economic Services and Bloomberg Business
News.

         SECTION 4. HOLDER'S OBLIGATIONS. Each Holder agrees, by acquisition of
the Registrable Securities, that no Holder of Registrable Securities shall be
entitled to sell any of such Registrable Securities pursuant to a Registration
Statement or to receive a Prospectus relating thereto, unless such Holder has
furnished the Company with a Notice and Questionnaire as required pursuant to
Section 2(d) hereof (including the information required to be included in such
Notice and Questionnaire) and the information set forth in the next sentence.
Each Notice Holder agrees promptly to furnish to the Company all information
required to be disclosed in order to make the information previously furnished
to the Company by such Notice Holder not misleading and any other information
regarding such Notice Holder and the distribution of such Registrable Securities
as the Company may from time to time reasonably request. Any sale of any
Registrable Securities by any Holder shall constitute a representation and
warranty by such Holder that the information relating to such Holder and its
plan of distribution is as set forth in the Prospectus delivered by such Holder
in connection with such disposition, that such Prospectus does not as of the
time of such sale contain any untrue statement of a material fact relating to or
provided by such Holder or its plan of distribution and that such Prospectus
does not as of the time of such sale omit to state any material fact relating to
or provided by such Holder or its plan of distribution necessary to make the
statements in such Prospectus, in the light of the circumstances under which
they were made, not misleading.


                                      14


<PAGE>

         SECTION 5. REGISTRATION EXPENSES. The Company shall bear all fees and
expenses incurred in connection with the performance by the Company of its
obligations under Sections 2 and 3 of this Agreement whether or not any of the
Registration Statements are declared effective. Such fees and expenses shall
include, without limitation, (i) all registration and filing fees (including,
without limitation, fees and expenses (x) with respect to filings required to be
made with the National Association of Securities Dealers, Inc. and (y) of
compliance with federal and state securities or Blue Sky laws (including,
without limitation, reasonable fees and disbursements of the Special Counsel in
connection with Blue Sky qualifications of the Registrable Securities under the
laws of such jurisdictions as the Notice Holders of a majority of the
Registrable Securities being sold pursuant to a Registration Statement may
designate), (ii) printing expenses (including, without limitation, expenses of
printing certificates for Registrable Securities in a form eligible for deposit
with The Depository Trust Company, (iii) duplication expenses relating to copies
of any Registration Statement or Prospectus delivered to any Holders hereunder,
(iv) fees and disbursements of counsel for the Company and the Special
Counsel in connection with the Shelf Registration Statement (provided that the
Company shall not be liable for the fees and expenses of more than one separate
firm for all parties participating in any transaction hereunder), (v) reasonable
fees and disbursements of the Trustee and its counsel and of the registrar and
transfer agent for the Common Stock and (vi) Securities Act liability insurance
obtained by the Company in its sole discretion. In addition, the Company shall
pay the internal expenses of the Company (including, without limitation, all
salaries and expenses of officers and employees performing legal or accounting
duties), the expense of any annual audit, the fees and expenses incurred in
connection with the listing by the Company of the Registrable Securities on any
securities exchange on which similar securities of the Company are then listed
and the fees and expenses of any person, including special experts, retained by
the Company. Notwithstanding the provisions of this Section 5, each seller of
Registrable Securities shall pay selling expenses and all registration expenses
to the extent required by applicable law.

         SECTION 6.  INDEMNIFICATION.

           (a) INDEMNIFICATION BY THE COMPANY. The Company shall indemnify
and hold harmless each Notice Holder and each person, if any, who controls
any Notice Holder (within the meaning of either Section 15 of the Securities
Act or Section 20 of the Exchange Act) from and against any losses,
liabilities, claims, damages and expenses (including, without limitation, any
legal or other expenses reasonably incurred in connection with defending or
investigating any such action or claim) (collectively, "LOSSES"), arising out
of or based upon any untrue statement or alleged untrue statement of a
material fact contained in any Registration Statement or Prospectus or in any
amendment or supplement thereto or in any preliminary prospectus, or arising
out of or based upon any omission or alleged omission to state therein a
material fact required to be stated therein or necessary to make the
statements therein not misleading, PROVIDED, HOWEVER, that the Company shall
not be liable in any such case to the extent that any such Losses arise out
of or are based upon an untrue statement or alleged untrue statement
contained in or omission or alleged omission from any of such documents in
reliance upon and conformity with any of the

                                      15

<PAGE>

information relating to the Holders furnished to the Company in writing by a
Holder expressly for use therein; PROVIDED FURTHER, that the indemnification
contained in this paragraph shall not inure to the benefit of any Holder of
Registrable Securities (or to the benefit of any person controlling such
Holder) on account of any such Losses arising out of or based upon an untrue
statement or alleged untrue statement or omission or alleged omission made in
any preliminary prospectus provided in each case the Company has performed
its obligations under Section 3(a) hereof if either (A) (i) such Holder
failed to send or deliver a copy of the Prospectus with or prior to the
delivery of written confirmation of the sale by such Holder to the person
asserting the claim from which such Losses arise and (ii) the Prospectus
would have corrected such untrue statement or alleged untrue statement or
such omission or alleged omission, or (B) (x) such untrue statement or
alleged untrue statement, omission or alleged omission is corrected in an
amendment or supplement to the Prospectus and (y) having previously been
furnished by or on behalf of the Company with copies of the Prospectus as so
amended or supplemented, such Holder thereafter fails to deliver such
Prospectus as so amended or supplemented, with or prior to the delivery of
written confirmation of the sale of a Registrable Security to the person
asserting the claim from which such Losses arise.

             (b) INDEMNIFICATION BY HOLDERS OF REGISTRABLE SECURITIES. Each
Holder agrees severally and not jointly to indemnify and hold harmless the
Company and its respective directors and officers, and each person, if any,
who controls the Company (within the meaning of either Section 15 of the
Securities Act or Section 20 of the Exchange Act) or any other Holder, from
and against all Losses arising out of or based upon any untrue statement or
alleged untrue statement of a material fact contained in any Registration
Statement or Prospectus or in any amendment or supplement thereto or in any
preliminary prospectus, or arising out of or based upon any omission or
alleged omission to state therein a material fact required to be stated
therein or necessary to make the statements therein not misleading, to the
extent, but only to the extent, that such untrue statement or alleged untrue
statement or omission or alleged omission was made in reliance upon and in
conformity with information furnished to the Company by such Holder expressly
for use in such Registration Statement or Prospectus or amendment or
supplement thereto. In no event shall the liability of any selling Holder of
Registrable Securities hereunder be greater in amount than the dollar amount
of the proceeds received by such Holder upon the sale of the Registrable
Securities pursuant to the Registration Statement giving rise to such
indemnification obligation.

              (c) CONDUCT OF INDEMNIFICATION PROCEEDINGS. In case any
proceeding (including any governmental investigation) shall be instituted
involving any person in respect of which indemnity may be sought pursuant to
either of the two preceding paragraphs, such person (the "INDEMNIFIED PARTY")
shall promptly notify the person against whom such indemnity may be sought
(the "INDEMNIFYING PARTY") in writing and the indemnifying party, upon
request of the indemnified party, shall retain counsel reasonably
satisfactory to the indemnified party to represent the indemnified party and
any others the indemnifying party may designate in such proceeding and shall
pay the reasonable fees and disbursements of such counsel related to such
proceeding. In any such proceeding, any indemnified party shall have the
right to retain its own counsel, but the fees and expenses of such counsel
shall be at the expense of such indemnified

                                      16


<PAGE>

party unless (i) the indemnifying party and the indemnified party shall have
mutually agreed to the retention of such counsel or (ii) the named parties to
any such proceeding (including any impleaded parties) include both the
indemnifying party and the indemnified party and representation of both
parties by the same counsel would be inappropriate due to actual or potential
differing interests between them. It is understood that the indemnifying
party shall not, in respect of the legal expenses of any indemnified party in
connection with any proceeding or related proceedings in the same
jurisdiction, be liable for the fees and expenses of more than one separate
firm (in addition to any local counsel) for all indemnified parties, and that
all such fees and expenses shall be reimbursed as they are incurred. Such
separate firm shall be designated in writing by, in the case of parties
indemnified pursuant to Section 6(a), the Holders of a majority (with Holders
of Notes deemed to be the Holders, for purposes of determining such majority,
of the number of shares of Underlying Common Stock into which such Notes are
or would be convertible or exchangeable as of the date on which such
designation is made) of the Registrable Securities covered by the
Registration Statement held by Holders that are indemnified parties pursuant
to Section 6(a) and, in the case of parties indemnified pursuant to Section
6(b), the Company. The indemnifying party shall not be liable for any
settlement of any proceeding effected without its written consent, but if
settled with such consent or if there be a final judgment for the plaintiff,
the indemnifying party agrees to indemnify the indemnified party from and
against any loss or liability by reason of such settlement or judgment. No
indemnifying party shall, without the prior written consent of the
indemnified party, effect any settlement of any pending or threatened
proceeding in respect of which any indemnified party is or could have been a
party and indemnity could have been sought hereunder by such indemnified
party, unless such settlement includes an unconditional release of such
indemnified party from all liability on claims that are the subject matter of
such proceeding.

              (d) CONTRIBUTION. To the extent that the indemnification
provided for in this Section 6 is unavailable to an indemnified party under
Section 6(a) or 6(b) hereof in respect of any Losses or is insufficient to
hold such indemnified party harmless, then each applicable indemnifying
party, in lieu of indemnifying such indemnified party, shall contribute to
the amount paid or payable by such indemnified party as a result of such
Losses (i) in such proportion as is appropriate to reflect the relative
benefits received by the indemnifying party or parties on the one hand and
the indemnified party or parties on the other hand or (ii) if the allocation
provided by clause (i) above is not permitted by applicable law, in such
proportion as is appropriate to reflect not only the relative benefits
referred to in clause (i) above but also the relative fault of the
indemnifying party or parties on the one hand and of the indemnified party or
parties on the other hand in connection with the statements or omissions that
resulted in such Losses, as well as any other relevant equitable
considerations. Benefits received by the Company shall be deemed to be equal
to the total net proceeds from the initial placement pursuant to the Purchase
Agreement (before deducting expenses) of the Registrable Securities to which
such Losses relate. Benefits received by any Holder shall be deemed to be
equal to the value of receiving Registrable Securities that are registered
under the Securities Act. The relative fault of the Holders on the one hand
and the Company on the other hand shall be determined by reference to, among
other things, whether the untrue or alleged untrue statement of a material
fact or the omission or

                                      17

<PAGE>

alleged omission to state a material fact relates to information supplied by
the Holders or by the Company, and the parties' relative intent, knowledge,
access to information and opportunity to correct or prevent such statement or
omission. The Holders' respective obligations to contribute pursuant to this
paragraph are several in proportion to the respective number of Registrable
Securities they have sold pursuant to a Registration Statement, and not joint.

         The parties hereto agree that it would not be just and equitable if
contribution pursuant to this Section 6(d) were determined by PRO RATA
allocation or by any other method or allocation that does not take into
account the equitable considerations referred to in the immediately preceding
paragraph. The amount paid or payable by an indemnified party as a result of
the Losses referred to in the immediately preceding paragraph shall be deemed
to include, subject to the limitations set forth above, any legal or other
expenses reasonably incurred by such indemnified party in connection with
investigating or defending any such action or claim. Notwithstanding this
Section 6(d), an indemnifying party that is a selling Holder of Registrable
Securities shall not be required to contribute any amount in excess of the
amount by which the total price at which the Registrable Securities sold by
such indemnifying party and distributed to the public were offered to the
public exceeds the amount of any damages that such indemnifying party has
otherwise been required to pay by reason of such untrue or alleged untrue
statement or omission or alleged omission. No person guilty of fraudulent
misrepresentation (within the meaning of Section 11(f) of the Securities Act)
shall be entitled to contribution from any person who was not guilty of such
fraudulent misrepresentation.

         (e) The indemnity, contribution and expense reimbursement
obligations of the parties hereunder shall be in addition to any liability
any indemnified party may otherwise have hereunder, under the Purchase
Agreement or otherwise.

         (f) The indemnity and contribution provisions contained in this
Section 6 shall remain operative and in full force and effect regardless of
(i) any termination of this Agreement, (ii) any investigation made by or on
behalf of any Holder or any person controlling any Holder, or the Company, or
the Company's officers or directors or any person controlling the Company and
(iii) the sale of any Registrable Securities by any Holder.

         SECTION 7. INFORMATION REQUIREMENTS. (a) The Company covenants that, if
at any time before the end of the Effectiveness Period the Company is not
subject to the reporting requirements of the Exchange Act, it will cooperate
with any Holder of Registrable Securities and take such further reasonable
action as any Holder of Registrable Securities may reasonably request in writing
(including, without limitation, making such reasonable representations as any
such Holder may reasonably request), all to the extent required from time to
time to enable such Holder to sell Registrable Securities without registration
under the Securities Act within the limitation of the exemptions provided by
Rule 144 and Rule 144A under the Securities Act and customarily taken in
connection with sales pursuant to such exemptions. Upon the written request of
any Holder of Registrable Securities, the Company shall deliver to such Holder a
written statement as to whether it has complied with such filing requirements,
unless such a statement has been included in the Company's most recent report
filed pursuant to Section 13 or Section 15(d) of Exchange Act. Notwithstanding
the foregoing, nothing in this Section 7 shall be

                                      18

<PAGE>

deemed to require the Company to register any of its securities (other than
the Common Stock) under any section of the Exchange Act.

           (b) The Company shall file the reports required to be filed by it
under the Exchange Act and shall comply with all other requirements set forth in
the instructions to Form S-3 in order to allow the Company to be eligible to
file registration statements on Form S-3.
         SECTION 8.  MISCELLANEOUS.

           (a) NO CONFLICTING AGREEMENTS. The Company is not, as of the date
hereof, a party to, nor shall it, on or after the date of this Agreement,
enter into, any agreement with respect to its securities that conflicts with
the rights granted to the Holders of Registrable Securities in this
Agreement. The Company represents and warrants that the rights granted to the
Holders of Registrable Securities hereunder do not in any way conflict with
the rights granted to the holders of the Company's securities under any other
agreements.
           (b) AMENDMENTS AND WAIVERS. The provisions of this Agreement,
including the provisions of this sentence, may not be amended, modified or
supplemented, and waivers or consents to departures from the provisions
hereof may not be given, unless the Company has obtained the written consent
of Holders of a majority of the then outstanding Underlying Common Stock
constituting Registrable Securities (with Holders of Notes deemed to be the
Holders, for purposes of this Section, of the number of outstanding shares of
Underlying Common Stock into which such Notes are or would be convertible or
exchangeable as of the date on which such consent is requested).
Notwithstanding the foregoing, a waiver or consent to depart from the
provisions hereof with respect to a matter that relates exclusively to the
rights of Holders of Registrable Securities whose securities are being sold
pursuant to a Registration Statement and that does not directly or indirectly
affect the rights of other Holders of Registrable Securities may be given by
Holders of at least a majority of the Registrable Securities being sold by
such Holders pursuant to such Registration Statement; PROVIDED, that the
provisions of this sentence may not be amended, modified, or supplemented
except in accordance with the provisions of the immediately preceding
sentence. Each Holder of Registrable Securities outstanding at the time of
any such amendment, modification, supplement, waiver or consent or thereafter
shall be bound by any such amendment, modification, supplement, waiver or
consent effected pursuant to this Section 8(b), whether or not any notice,
writing or marking indicating such amendment, modification, supplement,
waiver or consent appears on the Registrable Securities or is delivered to
such Holder.
           (c) NOTICES. All notices and other communications provided for or
permitted hereunder shall be made in writing by hand delivery, by telecopier, by
courier guaranteeing overnight delivery or by first-class mail, return receipt
requested, and shall be deemed given (i) when made, if made by hand delivery,
(ii) upon confirmation, if made by telecopier, (iii) one (1) Business Day after
being deposited with such courier, if made by overnight courier or (iv) on the
date indicated on the notice of receipt, if made by first-class mail, to the
parties as follows:

                (w)        if to a Holder of Registrable Securities, at the most
                           current address

                                       19

<PAGE>

given by such Holder to the Company in a Notice and Questionnaire or any
amendment thereto;

                (x)        if to the Company, to:

Lattice Semiconductor Corporation
5555 N.E. Moore Ct.
Hillsboro, OR 97124-6421
Attention: General Counsel
Telecopy No.: (503) 681-3077


and


Wilson Sonsini Goodrich & Rosati
650 Page Mill Road
Palo Alto, CA 94304-1050
Attention: John Fore, Esq.
Telecopy No.: (650) 493-6811

                                     20

<PAGE>

           (y) if to the Initial Purchasers, to:

                Morgan Stanley & Co. Incorporated
                1585 Broadway
                New York, New York
                Attention:  Equity Capital Markets
                Telecopy No.: (212) 761-0538

                and

                Davis Polk & Wardwell
                1875 Charleston Road
                Mountain View, CA 94043
                Attention: Bruce Dallas, Esq.
                Telecopy No.  (650) 316-3843

or to such other address as such person may have furnished to the other persons
identified in this Section 8(c) in writing in accordance herewith.

           (d) APPROVAL OF HOLDERS. Whenever the consent or approval of
Holders of a specified percentage of Registrable Securities is required
hereunder, Registrable Securities held by the Company or its affiliates (as
such term is defined in Rule 405 under the Securities Act) (other than the
Initial Purchasers or subsequent Holders of Registrable Securities if such
subsequent Holders are deemed to be such affiliates solely by reason of their
holdings of such Registrable Securities) shall not be counted in determining
whether such consent or approval was given by the Holders of such required
percentage.
           (e) SUCCESSORS AND ASSIGNS. Any person who purchases any
Registrable Securities from the Initial Purchasers shall be deemed, for
purposes of this Agreement, to be an assignee of the Initial Purchasers. This
Agreement shall inure to the benefit of and be binding upon the successors
and assigns of each of the parties and shall inure to the benefit of and be
binding upon each Holder of any Registrable Securities.
           (f) COUNTERPARTS. This Agreement may be executed in any number of
counterparts and by the parties hereto in separate counterparts, each of
which when so executed shall be deemed to be original and all of which taken
together shall constitute one and the same agreement.
           (g) HEADINGS. The headings in this Agreement are for convenience
of reference only and shall not limit or otherwise affect the meaning hereof.
           (h) GOVERNING LAW. THIS AGREEMENT SHALL BE GOVERNED BY AND
CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK, WITHOUT
REGARD TO CONFLICTS OF LAWS PRINCIPLES THEREOF.

                                   21

<PAGE>

           (i) SEVERABILITY. If any term provision, covenant or restriction
of this Agreement is held to be invalid, illegal, void or unenforceable, the
remainder of the terms, provisions, covenants and restrictions set forth
herein shall remain in full force and effect and shall in no way be affected,
impaired or invalidated thereby, and the parties hereto shall use their best
efforts to find and employ an alternative means to achieve the same or
substantially the same result as that contemplated by such term, provision,
covenant or restriction, it being intended that all of the rights and
privileges of the parties shall be enforceable to the fullest extent
permitted by law.
           (j) ENTIRE AGREEMENT. This Agreement is intended by the parties as
a final expression of their agreement and is intended to be a complete and
exclusive statement of the agreement and understanding of the parties hereto
in respect of the subject matter contained herein and the registration rights
granted by the Company with respect to the Registrable Securities. Except as
provided in the Purchase Agreement, there are no restrictions, promises,
warranties or undertakings, other than those set forth or referred to herein,
with respect to the registration rights granted by the Company with respect
to the Registrable Securities. This Agreement supersedes all prior agreements
and undertakings among the parties with respect to such registration rights.
No party hereto shall have any rights, duties or obligations other than those
specifically set forth in this Agreement. In no event will such methods of
distribution take the form of an underwritten offering of the Registrable
Securities without the prior agreement of the Company.
           (k) TERMINATION. This Agreement and the obligations of the parties
hereunder shall terminate upon the end of the Effectiveness Period, except
for any liabilities or obligations under Section 4, 5 or 6 hereof and the
obligations to make payments of and provide for liquidated damages under
Section 2(e) hereof to the extent such damages accrue prior to the end of the
Effectiveness Period, each of which shall remain in effect in accordance with
its terms.

                                    22

<PAGE>

         IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date first written above.

                             LATTICE SEMICONDUCTOR CORPORATION



                              By:  /s/ Cyrus Y. Tsui
                                 ---------------------------------------------
                                 Name:  Cyrus Y. Tsui
                                 Title:  President, Chief Executive Officer and
                                 Chairman of the Board



Confirmed and accepted as of
the date first above written:

MORGAN STANLEY & CO. INCORPORATED
GOLDMAN SACHS & CO.
BANCBOSTON ROBERTSON STEPHENS INC.
ABN AMRO INCORPORATED

By: Morgan Stanley & Co. Incorporated



By:  /s/ Todd Dow
   ------------------------------------
Name:    Todd Dow
Title:  Vice President









<PAGE>

                           LATTICE SEMICONDUCTOR CORPORATION

                    COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
                            (Amounts in thousands of dollars)

<TABLE>
<CAPTION>

                                                 FISCAL YEAR ENDED                            SIX MONTHS ENDED
                                                 -----------------                            ----------------

                                April 1,  March 30,  March 29,  March 28,  April 3,           Sept. 26,  Oct. 2,
                                 1995       1996       1997       1998      1999                1998      1999
                                 ----       ----       ----       ----      ----                ----      ----
<S>                             <C>       <C>        <C>        <C>        <C>                <C>        <C>
Pre-tax income (loss) from
 continuing operations         $40,617    $63,245    $67,678    $85,708    $62,292            $29,165  $(83,066)
                              ========   ========   ========   ========   ========           ========  ========

Fixed charges:
 Interest expense
 including amortization of
 debt issuance costs                                                                                      4,908

 Rental                            269        328        325        339        396                179       249
                              --------   --------   --------   --------   --------           --------  --------

Total fixed charges            $   269    $   328    $   325    $   339    $   396            $   179   $ 5,157
                              ========   ========   ========   ========   ========           ========  ========

Pre-tax income (loss)
 from continuing operations
 plus fixed charges            $40,886    $63,573    $68,003    $86,047    $62,688            $29,344   $(77,909)
                              ========   ========   ========   ========   ========            =======   ========

Ratio of earnings to fixed
 charges (1)                      152         194        209        254        158                164        -
                              =======    ========   ========   ========   ========            =======   ========
</TABLE>


(1) Lattice would have had to generate additional earnings of $83.1 million
    for the six month period ended October 2, 1999 to achieve a ratio of 1:1.

<PAGE>
                                                                    Exhibit 23.1

                       CONSENT OF INDEPENDENT ACCOUNTANTS

    We hereby consent to the incorporation by reference in this Registration
Statement on Form S-3 of our report dated April 21, 1999, except as to Note 13,
which is as of June 15, 1999 relating to the consolidated financial statements,
which appears in the 1999 Annual Report to Shareholders of Lattice Semiconductor
Corporation, which is incorporated by reference in Lattice Semiconductor
Corporation's Annual Report on Form 10-K, as amended, for the year ended
April 3, 1999. We also consent to the incorporation by reference of our report
dated April 21, 1999 relating to the financial statement schedule, which appears
in such Annual Report on Form 10-K. We also consent to the reference to us under
the heading "Experts" in such Registration Statement.

PricewaterhouseCoopers LLP

Portland, Oregon
December 20, 1999

<PAGE>
                                                                    Exhibit 23.2

               CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

    We consent to the reference to our firm under the caption "Experts" in the
Registration Statement (Form S-3) and related Prospectus of Lattice
Semiconductor Corporation for the registration of $260,000,000 principal amount
4 3/4% Convertible Subordinated Notes due 2006 and the common stock issuable
upon conversion of the Notes and to the incorporation by reference therein of
our report dated February 8, 1999, with respect to the consolidated financial
statements of Vantis Corporation included in Lattice Semiconductor Corporation's
Current Report on Form 8-K, as amended, dated June 15, 1999, filed with the
Securities and Exchange Commission.

                                          /s/ ERNST & YOUNG LLP

San Jose, California
December 20, 1999

<PAGE>
                                                                 EXHIBIT 25.1

                        SECURITIES AND EXCHANGE COMMISSION
                            WASHINGTON, D.C. 20549


                                  FORM T-1

                               ---------------

                      STATEMENT OF ELIGIBILITY UNDER THE
                       TRUST INDENTURE ACT OF 1939 OF A
                   CORPORATION DESIGNATED TO ACT AS TRUSTEE

               CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY
                 OF A TRUSTEE PURSUANT TO SECTION 305(B)(2) [X]


    STATE STREET BANK AND TRUST COMPANY OF CALIFORNIA, NATIONAL ASSOCIATION
              (EXACT NAME OF TRUSTEE AS SPECIFIED IN ITS CHARTER)

            United States                           06-1143380
   (JURISDICTION OF INCORPORATION OR             (I.R.S. EMPLOYER
ORGANIZATION IF NOT A U.S. NATIONAL BANK)       IDENTIFICATION NO.)

    633 West 5th Street, 12th Floor, Los Angeles, California      90071
          (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)              (ZIP CODE)

        Lynda A. Vogel, Senior Vice President and Managing Director
    633 West 5th Street, 12th Floor, Los Angeles, California      90071
                               (213) 362-7399
         (NAME, ADDRESS AND TELEPHONE NUMBER OF AGENT FOR SERVICE)

                        LATTICE SEMICONDUCTOR CORPORATION
              (EXACT NAME OF OBLIGOR AS SPECIFIED IN ITS CHARTER)

        DELAWARE                                    93-0835214

(STATE OR OTHER JURISDICTION OF                 (I.R.S. EMPLOYER
INCORPORATION OR ORGANIZATION)                  IDENTIFICATION NO.)

                            5555 N.E. MOORE COURT
                          HILLSBORO, OR  97124-6421
         (Address of principal executive offices)  (Zip Code)

                      LATTICE SEMICONDUCTOR CORPORATION
               4-3/4% CONVERTIBLE SUBORDINATED NOTES DUE 2006
                           (TYPE OF SECURITIES)


<PAGE>

                                GENERAL

ITEM 1.  GENERAL INFORMATION.

         FURNISH THE FOLLOWING INFORMATION AS TO THE TRUSTEE:

         (a)  NAME AND ADDRESS OF EACH EXAMINING OR SUPERVISORY AUTHORITY TO
             WHICH IT IS SUBJECT.

                Comptroller of the Currency, Western District Office,
                50 Fremont Street, Suite 3900, San Francisco, California,
                94105-2292

         (b)  WHETHER IT IS AUTHORIZED TO EXERCISE CORPORATE TRUST POWERS.
                Trustee is authorized to exercise corporate trust powers.

ITEM 2.  AFFILIATIONS WITH OBLIGOR.

         IF THE OBLIGOR IS AN AFFILIATE OF THE TRUSTEE, DESCRIBE EACH SUCH
         AFFILIATION.

                The obligor is not an affiliate of the trustee or of its
                parent, State Street Bank and Trust Company.

                (See notes on page 2.)

ITEM 3. THROUGH ITEM 15.    NOT APPLICABLE.

ITEM 16. LIST OF EXHIBITS.

         LIST BELOW ALL EXHIBITS FILED AS PART OF THIS STATEMENT OF
         ELIGIBILITY.

         1.  A COPY OF THE ARTICLES OF ASSOCIATION OF THE TRUSTEE AS NOW IN
         EFFECT.

                A copy of the Articles of Association of the trustee, as now
         in effect, is on file with the Securities and Exchange Commission as
         an Exhibit with corresponding exhibit number to the Form T-1of
         Western Digital Corporation, filed pursuant to Section 305(b)(2) of
         the Trust Indenture Act of 1939, as amended (the "Act"), on May 12,
         1998 (Registration No. 333-52463), and is incorporated herein by
         reference.

         2.  A COPY OF THE CERTIFICATE OF AUTHORITY OF THE TRUSTEE TO
         COMMENCE BUSINESS, IF NOT CONTAINED IN THE ARTICLES OF ASSOCIATION.

                A Certificate of Corporate Existence (with fiduciary powers)
         from the Comptroller of the Currency, Administrator of National
         Banks is on file with the Securities and Exchange Commission as an
         Exhibit with corresponding exhibit number to the Form T-1 of Western
         Digital Corporation, filed pursuant to Section 305(b)(2) of the Act,
         on May 12, 1998 (Registration No. 333-52463), and is incorporated
         herein by reference.

         3.  A COPY OF THE AUTHORIZATION OF THE TRUSTEE TO EXERCISE CORPORATE
         TRUST POWERS, IF SUCH AUTHORIZATION IS NOT CONTAINED IN THE
         DOCUMENTS SPECIFIED IN PARAGRAPH (1) OR (2), ABOVE.

                Authorization of the Trustee to exercise fiduciary powers
         (included in Exhibits 1 and 2; no separate instrument).

         4.  A COPY OF THE EXISTING BY-LAWS OF THE TRUSTEE, OR INSTRUMENTS
         CORRESPONDING THERETO.

                A copy of the by-laws of the trustee, as now in effect, is on
         file with the Securities and Exchange Commission as an Exhibit with
         corresponding exhibit number to the Form T-1 of Western Digital
         Corporation, filed pursuant to Section 305(b)(2) of the Act, on May
         12, 1998 (Registration No. 333-52463), and is incorporated herein by
         reference.



                                       1

<PAGE>


         5.  A COPY OF EACH INDENTURE REFERRED TO IN ITEM 4. IF THE OBLIGOR
         IS IN DEFAULT.

          Not applicable.

         6.  THE CONSENTS OF UNITED STATES INSTITUTIONAL TRUSTEES REQUIRED BY
         SECTION 321(B) OF THE ACT.

                The consent of the trustee required by Section 321(b) of the
                Act is annexed hereto as Exhibit 6 and made a part hereof.

         7.  A COPY OF THE LATEST REPORT OF CONDITION OF THE TRUSTEE
         PUBLISHED PURSUANT TO LAW OR THE REQUIREMENTS OF  ITS SUPERVISING OR
         EXAMINING AUTHORITY.

                A copy of the latest report of condition of the trustee
                published pursuant to law or the requirements of its
                supervising or examining authority is annexed hereto as
                Exhibit 7 and made a part hereof.

                                     NOTES

         In answering any item of this Statement of Eligibility  which
relates to matters peculiarly within the knowledge of the obligor or any
underwriter for the obligor, the trustee has relied upon information
furnished to it by the obligor and the underwriters, and the trustee
disclaims responsibility for the accuracy or completeness of such information.

         The answer furnished to Item 2. of this statement will be amended,
if necessary, to reflect any facts which differ from those stated and which
would have been required to be stated if known at the date hereof.

                                   SIGNATURE


         Pursuant to the requirements of the Trust Indenture Act of 1939, as
amended, the trustee, State Street Bank and Trust Company of California,
National Association, a national banking association, organized and existing
under the laws of the United States of America, has duly caused this
statement of eligibility to be signed on its behalf by the undersigned,
thereunto duly authorized, all in the City of Los Angeles, and State of
California, on the 20th day of December, 1999.

                              STATE STREET BANK AND TRUST COMPANY
                              OF CALIFORNIA, NATIONAL ASSOCIATION


                              By:  /S/ Scott C. Emmons
                                   ---------------------------------------
                                   SCOTT C. EMMONS
                                   VICE PRESIDENT


                                       2

<PAGE>

                                    EXHIBIT 6


                              CONSENT OF THE TRUSTEE

     Pursuant to the requirements of Section 321(b) of the Trust Indenture
Act of 1939, as amended, in connection with the proposed issuance by Lattice
Semiconductor Corporation of its 4-3/4% Convertible Subordinated Notes due
2006, we hereby consent that reports of examination by Federal, State,
Territorial or District authorities may be furnished by such authorities to
the Securities and Exchange Commission upon request therefor.

                              STATE STREET BANK AND TRUST COMPANY
                              OF CALIFORNIA, NATIONAL ASSOCIATION


                              By:  /S/ Scott C. Emmons
                                   --------------------------------------
                                   SCOTT C. EMMONS
                                   VICE PRESIDENT

DATED: DECEMBER 20, 1999


                                       3

<PAGE>

                                    EXHIBIT 7

Consolidated Report of Condition and Income for A Bank With Domestic Offices
Only and Total Assets of Less Than $100 Million of State Street Bank and
Trust Company of California, a national banking association duly organized
and existing under and by virtue of the laws of the United States of America,
at the close of business SEPTEMBER 30, 1999, published in accordance with a
call made by the Federal Deposit Insurance Corporation pursuant to the
required law: 12 U.S.C. Section 324 (State member banks); 12 U.S.C. Section
1817 (State nonmember banks); and 12 U.S.C. Section 161 (National banks).


<TABLE>
<CAPTION>
                                                                           Thousands
ASSETS                                                                     of Dollars
<S>                                                                        <C>
Cash and balances due from depository institutions:
     Noninterest-bearing balances and currency and coin.......................6,329
     Interest-bearing balances ...............................................    0
Securities ...................................................................   38
Federal funds sold and securities purchased
     under agreements to resell in domestic offices
     of the bank and its Edge subsidiary .....................................    0

Loans and lease financing receivables:
     Loans and leases, net of unearned income .....................    0
     Allowance for loan and lease losses ..........................    0
     Allocated transfer risk reserve...............................    0
     Loans and leases, net of unearned income and allowances .................    0
Assets held in trading accounts ..............................................    0
Premises and fixed assets ....................................................   38
Other real estate owned ......................................................    0
Investments in unconsolidated subsidiaries ...................................    0
Customers' liability to this bank on acceptances outstanding .................    0
Intangible assets ............................................................    0
Other assets..................................................................  685
                                                                              -----
Total assets .................................................................7,090
                                                                              =====

LIABILITIES

Deposits:

     In domestic offices .....................................................    0
          Noninterest-bearing .....................................    0
          Interest-bearing ........................................    0
     In foreign offices and Edge subsidiary ..................................    0
          Noninterest-bearing .....................................    0
          Interest-bearing ........................................    0
Federal funds purchased and securities sold under
     agreements to repurchase in domestic offices of
     the bank and of its Edge subsidiary .....................................    0
Demand notes issued to the U.S. Treasury and Trading Liabilities .............    0
Other borrowed money .........................................................    0
Subordinated notes and debentures ............................................    0
Bank's liability on acceptances executed and outstanding .....................    0
Other liabilities ............................................................3,448

Total liabilities ............................................................3,448
                                                                              -----

EQUITY CAPITAL
Perpetual preferred stock and related surplus.................................    0
Common stock .................................................................  500
Surplus ......................................................................  750
Undivided profits and capital reserves/Net unrealized holding gains (losses)..2,392
Cumulative foreign currency translation adjustments  .........................    0

Total equity capital .........................................................3,642
                                                                              -----
Total liabilities and equity capital .........................................7,090
                                                                              =====
</TABLE>

                                       4

<PAGE>

I, John J. Saniuk, Vice President and Comptroller of the above named bank do
hereby declare that this Report of Condition and Income for this report date
have been prepared in conformance with the instructions issued by the
appropriate Federal regulatory authority and is true to the best of my
knowledge and belief.

                                   /S/    John J. Saniuk


We, the undersigned directors, attest to the correctness of this Report of
Condition and declare that it has been examined by us and to the best of our
knowledge and belief has been prepared in conformance with the instructions
issued by the appropriate Federal regulatory authority and is true and
correct.

                                   /S/    Alan D. Greene
                                   /S/    Bryan R. Calder
                                   /S/    Lynda A. Vogel




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