VLSI TECHNOLOGY INC
424A, 1995-08-30
SEMICONDUCTORS & RELATED DEVICES
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<PAGE>
INFORMATION   CONTAINED  HEREIN  IS  SUBJECT   TO  COMPLETION  OR  AMENDMENT.  A
REGISTRATION STATEMENT  RELATING TO  THESE SECURITIES  HAS BEEN  FILED WITH  THE
SECURITIES  AND EXCHANGE  COMMISSION. THESE SECURITIES  MAY NOT BE  SOLD NOR MAY
OFFERS TO  BUY  BE  ACCEPTED  PRIOR  TO  THE  TIME  THE  REGISTRATION  STATEMENT
BECOMES  EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR THE
SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE  SECURITIES
IN  ANY STATE IN WHICH SUCH OFFER,  SOLICITATION OR SALE WOULD BE UNLAWFUL PRIOR
TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF ANY SUCH STATE.
<PAGE>
PROSPECTUS
$150,000,000
    [LOGO]

  % CONVERTIBLE SUBORDINATED NOTES DUE 2005

The     %  Convertible  Subordinated  Notes  due  2005  (the  "Notes")  of  VLSI
Technology, Inc. ("VLSI" or the "Company") offered hereby will mature on October
1,  2005. Interest on the Notes is payable on April 1 and October 1 of each year
commencing April 1, 1996. The Notes are convertible into shares of Common Stock,
$.01 par  value per  share (the  "Common Stock"),  of the  Company at  any  time
beginning  60 days after the  date of this Prospectus and  on or before the last
trading day prior to maturity, unless previously redeemed, at a conversion price
of $         per share, subject  to adjustment  in certain  events as  described
herein.

The  Common  Stock  of the  Company  is  quoted on  the  Nasdaq  National Market
("Nasdaq") under the symbol "VLSI." On  August 25, 1995, the last reported  sale
price  of the Common Stock on Nasdaq was  $33.375 per share. See "Price Range of
Common Stock and Dividend Policy." The Company intends to apply for approval for
quotation of the Notes on the Nasdaq Stock Market under the symbol "VLSIX."

The Notes are subordinated in right of payment to all existing and future Senior
Debt (as defined) of  the Company and effectively  subordinated to all  existing
and future liabilities and obligations of the Company's subsidiaries. As of June
30,  1995, the total principal  amount of Senior Debt  of the Company would have
been approximately $64.2  million (not  including the  Company's 7%  Convertible
Subordinated Debentures due 2012, which were converted or redeemed subsequent to
June   30,  1995)  and  other  liabilities  and  obligations  of  the  Company's
subsidiaries (excluding intercompany indebtedness)  that would have  effectively
ranked  senior to  the Notes  would have  been approximately  $33.9 million. The
Notes are redeemable, in whole or in part,  at the option of the Company at  any
time on or after October 3, 1997, at the redemption prices set forth herein plus
accrued  interest, except that the Notes may not be redeemed prior to October 3,
1999 unless  the closing  price of  the Common  Stock is  at least  125% of  the
conversion  price for at least 20 trading days within a period of 30 consecutive
trading days ending on the fifth trading day prior to the notice of  redemption.
No sinking fund is provided for the Notes. In addition, following the occurrence
of  a Designated  Event (as  defined), each  holder has  the right  to cause the
Company to purchase the  Notes at 101% of  their principal amount together  with
accrued  and unpaid interest, subject to certain conditions. See "Description of
Notes."

SEE "RISK FACTORS" COMMENCING AT PAGE 7 FOR A DISCUSSION OF CERTAIN FACTORS THAT
SHOULD BE CONSIDERED BY PURCHASERS OF THE NOTES.

THESE SECURITIES HAVE  NOT BEEN APPROVED  OR DISAPPROVED BY  THE SECURITIES  AND
EXCHANGE  COMMISSION OR ANY  STATE SECURITIES COMMISSION  NOR HAS THE SECURITIES
AND EXCHANGE  COMMISSION OR  ANY  STATE SECURITIES  COMMISSION PASSED  UPON  THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.

<TABLE>
<CAPTION>
- ----------------------------------------------------------------------------------------------------
                                                PRICE TO          UNDERWRITING      PROCEEDS TO
                                                PUBLIC(1)         DISCOUNT          COMPANY(1)(2)
<S>                                             <C>               <C>               <C>
Per Note......................................  %                 %                 %
Total(3)......................................  $                 $                 $
- ----------------------------------------------------------------------------------------------------
<FN>
(1)  Plus accrued interest, if any, from the date of issuance.
(2)  Before  deducting expenses payable by the Company estimated to be $400,000.
     The Underwriters will reimburse the Company for certain of the expenses.
(3)  The Company has granted the Underwriters an option, exercisable at any time
     within 30  days after  the date  hereof, to  purchase up  to an  additional
     $22,500,000  aggregate principal  amount of  Notes on  the terms  set forth
     above to cover over-allotments, if  any. If the Underwriters exercise  such
     option  in  full,  the total  Price  to Public,  Underwriting  Discount and
     Proceeds to Company  will be  $           , $            and $            ,
     respectively. See "Underwriting."
</TABLE>

The  Notes are offered subject to receipt and acceptance by the Underwriters, to
prior sale and to  the Underwriters' right  to reject any order  in whole or  in
part  and to withdraw, cancel or modify the offer without notice. It is expected
that delivery of the Notes will be  made at the office of Salomon Brothers  Inc,
Seven  World Trade Center, New York, New  York, or through the facilities of The
Depository Trust Company, on or about              , 1995.

SALOMON BROTHERS INC

          DONALDSON, LUFKIN & JENRETTE
                SECURITIES CORPORATION

                                    MERRILL LYNCH & CO.
                                                           MONTGOMERY SECURITIES

The date of this Prospectus is              , 1995.
<PAGE>
                             AVAILABLE INFORMATION

    The Company is subject to  the informational requirements of the  Securities
Exchange  Act  of  1934, as  amended  (the  "Exchange Act"),  and  in accordance
therewith files reports, proxy and information statements and other  information
with  the Securities and  Exchange Commission (the  "Commission"). Such reports,
proxy and  information statements  and other  information may  be inspected  and
copied  at the public reference facilities  maintained by the Commission at Room
1024, Judiciary Plaza, 450 Fifth Street, N.W., Washington, D.C. 20549 and at the
Commission's Regional Offices located at  Seven World Trade Center, 13th  Floor,
New  York,  New York  10048 and  at  Northwest Atrium  Center, 500  West Madison
Street, Suite 1400, Chicago, Illinois 60661. Copies of such material also can be
obtained from  the Public  Reference  Section of  the  Commission at  450  Fifth
Street, N.W., Washington, D.C. 20549, at prescribed rates.

    The Company has filed a registration statement on Form S-3 (herein, together
with  all amendments and exhibits, referred  to as the "Registration Statement")
with  the  Commission  under  the  Securities  Act  of  1933,  as  amended  (the
"Securities  Act"). This Prospectus does not  contain all of the information set
forth in  the Registration  Statement, certain  parts of  which are  omitted  in
accordance  with  the  rules  and regulations  of  the  Commission.  For further
information, reference is hereby made to the Registration Statement.

                     INFORMATION INCORPORATED BY REFERENCE

    The following documents filed by VLSI with the Commission (File No. 0-11879)
pursuant to the Exchange Act are incorporated herein by reference:

    1.  The  Company's Annual  Report on  Form 10-K  for the  fiscal year  ended
       December 30, 1994.

    2.   The  Company's Quarterly  Reports on Form  10-Q for  the quarters ended
       March 31, 1995 and June 30, 1995.

    3.   The  description  of  the  Company's  Common  Stock  contained  in  its
       Registration Statement on Form 8-A filed with the Commission on April 20,
       1984,  as amended, and  the description of  the Company's Preferred Share
       Purchase Rights issued  and issuable pursuant  to its stockholder  rights
       plan,  contained in the Registration Statement on Form 8-A filed with the
       Commission on November 20, 1989, as amended.

    In addition,  all reports  and  other documents  subsequently filed  by  the
Company pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act after
the  date of  this Prospectus and  prior to  the termination of  the offering of
Common Stock shall be deemed to be incorporated by reference in this  Prospectus
from  the date of filing  such documents. Any statement  contained in a document
incorporated by reference herein  shall be deemed to  be modified or  superseded
for  purposes of this Prospectus to the extent that a statement contained herein
or in  any  subsequently  filed  document  that also  is  or  is  deemed  to  be
incorporated by reference herein modifies or supersedes such statement. Any such
statement  so modified or superseded shall not  be deemed, except as so modified
or superseded, to constitute a part of this Prospectus. The Company will provide
without charge to  each person,  including any  beneficial owner,  to whom  this
Prospectus is delivered, upon the written or oral request of such person, a copy
of any and all of the documents that are incorporated herein by reference (other
than   exhibits  to  such  documents,  unless  such  exhibits  are  specifically
incorporated by  reference into  such documents).  Requests for  such  documents
should  be directed to  Gregory K. Hinckley, Vice  President, Finance, and Chief
Financial Officer at the principal  executive offices of VLSI Technology,  Inc.,
1109 McKay Drive, San Jose, California 95131 or by telephone at (408) 434-3100.
                           --------------------------

    IN  CONNECTION WITH THIS OFFERING, THE UNDERWRITERS MAY OVER-ALLOT OR EFFECT
TRANSACTIONS WHICH  STABILIZE OR  MAINTAIN THE  MARKET PRICE  OF THE  NOTES  AND
COMMON  STOCK AT  LEVELS ABOVE  THAT WHICH MIGHT  OTHERWISE PREVAIL  IN THE OPEN
MARKET. SUCH STABILIZING, IF COMMENCED, MAY BE DISCONTINUED AT ANY TIME.

    IN CONNECTION WITH  THIS OFFERING,  CERTAIN UNDERWRITERS  AND SELLING  GROUP
MEMBERS  MAY ENGAGE IN PASSIVE MARKET MAKING TRANSACTIONS IN THE COMMON STOCK ON
NASDAQ IN ACCORDANCE WITH RULE 10B-6A UNDER THE SECURITIES EXCHANGE ACT OF 1934.
SEE "UNDERWRITING."
                           --------------------------

                         FOR CALIFORNIA RESIDENTS ONLY

    WITH RESPECT TO SALES OF THE  SECURITIES BEING OFFERED HEREBY TO  CALIFORNIA
RESIDENTS, SUCH SECURITIES MAY BE SOLD ONLY TO (1) "ACCREDITED INVESTORS" WITHIN
THE MEANING OF REGULATION D UNDER THE SECURITIES ACT OF 1933, (2) BANKS, SAVINGS
AND   LOAN  ASSOCIATIONS,  TRUST   COMPANIES,  INSURANCE  COMPANIES,  INVESTMENT
COMPANIES REGISTERED  UNDER THE  INVESTMENT  COMPANY ACT  OF 1940,  PENSION  AND
PROFIT  SHARING TRUSTS, ANY CORPORATIONS OR  OTHER ENTITIES WHICH, TOGETHER WITH
SUCH CORPORATION'S  OR  OTHER  ENTITY'S  AFFILIATES,  HAVE  A  NET  WORTH  ON  A
CONSOLIDATED  BASIS ACCORDING TO THEIR  MOST RECENT REGULARLY PREPARED FINANCIAL
STATEMENTS (WHICH  SHALL HAVE  BEEN  REVIEWED BUT  NOT NECESSARILY  AUDITED,  BY
OUTSIDE  ACCOUNTANTS)  OF  NOT LESS  THAN  $14,000,000 AND  SUBSIDIARIES  OF THE
FOREGOING, (3)  ANY  CORPORATION,  PARTNERSHIP OR  ORGANIZATION  (OTHER  THAN  A
CORPORATION,  PARTNERSHIP  OR  ORGANIZATION  FORMED  FOR  THE  SOLE  PURPOSE  OF
PURCHASING  THE  SECURITIES  BEING  OFFERED  HEREBY)  WHO  PURCHASES  AT   LEAST
$1,000,000  AGGREGATE  AMOUNT  OF THE  SECURITIES  OFFERED HEREBY,  AND  (4) ANY
NATURAL PERSON WHO (A) HAS INCOME OF $65,000 AND A NET WORTH OF $250,000, OR (B)
HAS A NET WORTH OF $500,000 (IN EACH CASE, EXCLUDING HOME, HOME FURNISHINGS  AND
PERSONAL  AUTOMOBILES).  EACH  CALIFORNIA  RESIDENT  PURCHASING  THE  SECURITIES
OFFERED HEREBY WILL BE DEEMED TO REPRESENT BY SUCH PURCHASE THAT IT COMES WITHIN
ONE OF THE  AFOREMENTIONED CATEGORIES  AND THAT IT  WILL NOT  SELL OR  OTHERWISE
TRANSFER  SUCH SECURITY  TO A  CALIFORNIA RESIDENT  UNLESS THE  TRANSFEREE COMES
WITHIN ONE  OF  THE  AFOREMENTIONED  CATEGORIES AND  THAT  IT  WILL  ADVISE  THE
TRANSFEREE  OF THIS CONDITION WHICH TRANSFEREE, BY BECOMING SUCH, WILL BE DEEMED
TO BE BOUND BY THE SAME RESTRICTIONS ON RESALE.

    The VLSI  name  and logo,  Polar-TM-,  FSB, ASIC  Synthesizer,  ChipPlanner,
Datapath Compiler and Path Finder are trademarks of the Company. This Prospectus
also includes trademarks of companies other than VLSI.

    The  following companies are  mentioned in this  Prospectus: Alcatel Alsthom
Compagnie  Generale  d'Electricite  ("Alcatel"),  AT&T  Corp.  ("AT&T"),   Apple
Computer,  Inc. ("Apple"), Cadence  Design Systems, Inc.  ("Cadence"), Chips and
Technologies, Inc. ("Chips  and Technologies"), Cisco  Systems, Inc.  ("Cisco"),
Compaq  Computer Corporation ("Compaq"), DSC Communications Corporation ("DSC"),
Telefonaktiebolaget   LM   Ericsson   ("Ericsson"),   Hewlett-Packard    Company
("Hewlett-Packard"),  Hitachi, Ltd. ("Hitachi"),  Hughes Corporation ("Hughes"),
Intel  Corporation  ("Intel"),   International  Business  Machines   Corporation
("IBM"),   Kyocera  Corporation  ("Kyocera"),  LSI  Logic  Corporation  ("LSI"),
Matsushita  Electric  Industrial  Co.,  Ltd.  ("Matsushita"),  Mentor   Graphics
Corporation   ("Mentor   Graphics"),  Motorola,   Inc.   ("Motorola"),  National
Semiconductor Corporation ("National  Semiconductor"), NEC Corporation  ("NEC"),
Newbridge  Networks  Corporation  ("Newbridge"),  NexGen,  Inc.  ("NexGen"), Oak
Technology, Inc. ("Oak  Technology"), Packard Bell  Electronics, Inc.  ("Packard
Bell"),  Pioneer  Electronic  Corporation  ("Pioneer"),  Rockwell  International
Corporation ("Rockwell"), Sagem SA  ("Sagem"), Silicon Graphics, Inc.  ("Silicon
Graphics"),   Sony  Corporation  ("Sony"),   Tellabs,  Inc.  ("Tellabs"),  Texas
Instruments  Incorporated  ("Texas  Instruments"  or  "TI"),  Thomson   Consumer
Electronic  ("Thomson"), Toshiba  Corporation ("Toshiba") and  UB Networks, Inc.
("UB Networks").
<PAGE>
                               PROSPECTUS SUMMARY

    THE  FOLLOWING SUMMARY  IS QUALIFIED  IN ITS  ENTIRETY BY  THE MORE DETAILED
INFORMATION AND CONSOLIDATED  FINANCIAL STATEMENTS AND  RELATED NOTES  APPEARING
ELSEWHERE  IN,  OR  INCORPORATED BY  REFERENCE  IN, THIS  PROSPECTUS.  SEE "RISK
FACTORS."

                                  THE COMPANY

    VLSI is  a leader  in the  design, manufacture  and sale  of highly  complex
application  specific integrated circuits ("ASICs") -- custom chips designed for
an individual customer -- and  application specific standard products  ("ASSPs")
- --  semi-custom chips designed  for a particular market  application that may be
used by several different customers. The Company targets high-volume markets  in
which  it has built significant expertise and can use its library of proprietary
cells and highly  integrated building  blocks to assist  customers in  designing
products  and in bringing them to  market rapidly. VLSI's target markets include
the computing,  communications  and  consumer and  entertainment  markets.  VLSI
emphasizes  high  performance  applications  where  its  products  are  critical
elements of complex electronic systems. VLSI  targets key OEM customers who  are
leaders  in their respective  industries. The Company's  major customers include
Compaq, Apple, Ericsson, Hewlett-Packard, Silicon Graphics, Tellabs and Alcatel.

    VLSI produces a significant portion of its wafers (approximately 79% in  the
first   half  of  1995)  at  its   own  facilities  and  augments  its  internal
manufacturing  capacity  with   the  foundry  services   of  third-party   wafer
subcontractors.  The  Company  believes  that  this  strategy  improves quality,
cost-effectiveness, responsiveness to customers, access to capacity, ability  to
implement  leading edge  process technology and  time to market,  as compared to
semiconductor companies  that  lack fabrication  facilities.  The  semiconductor
industry   is,  however,   currently  facing   capacity  constraints   in  wafer
manufacturing and the availability of third-party wafer foundries has diminished
significantly. Due to this manufacturing capacity shortage, as well as increased
customer demand,  the  Company  is  seeking  to  accelerate  the  expansion  and
upgrading of its internal and external manufacturing capacity. The Company is in
the  process  of completing  the build-out  of its  fabrication facility  in San
Antonio, Texas in  order to  increase its internal  manufacturing capacity.  The
Company  has  taken  steps to  secure  deliveries of  long  lead-time equipment,
including steppers,  necessary  to  support  approximately  a  50%  increase  in
internal  wafer starts from the fourth quarter  of 1995 to the fourth quarter of
1996.

    Through its subsidiary,  COMPASS Design Automation,  Inc. ("COMPASS"),  VLSI
offers  an  integrated suite  of electronic  design automation  ("EDA") software
tools, foundry-flexible libraries and  support services for  use by systems  and
circuit  designers at other  semiconductor and systems companies,  as well as at
the Company, in creating complex integrated circuits.

    The Company's principal executive offices  are located at 1109 McKay  Drive,
San  Jose,  California  95131,  and  the  Company's  telephone  number  is (408)
434-3100.

                               RECENT DEVELOPMENT

    On August  25,  1995, Intel  Corporation  exercised  in full  a  warrant  to
purchase  2,677,604 shares of VLSI Common  Stock for an aggregate exercise price
of approximately $31.3 million. See "Risk  Factors -- Effect of Potential  Stock
Sales."

                                       3
<PAGE>
                                  THE OFFERING

<TABLE>
<S>                                 <C>
The Notes.........................  $150,000,000   aggregate  principal  amount  of        %
                                    Convertible Subordinated Notes  due 2005 (the  "Notes"),
                                    excluding  $22,500,000  aggregate  principal  amount  of
                                    Notes  subject  to   the  Underwriters'   over-allotment
                                    option.

Maturity..........................  The  Notes will mature on October 1, 2005 unless earlier
                                    redeemed or converted.

Payment of Interest...............  Interest on the Notes at the rate  of    % per annum  is
                                    payable  semi-annually on April 1  and October 1 of each
                                    year commencing April 1, 1996.

Conversion Rights.................  The Notes  are  convertible  into Common  Stock  of  the
                                    Company  at  the  option  of  the  holder  at  any  time
                                    beginning 60 days after the date of this Prospectus  and
                                    on  or before  the last  trading day  prior to maturity,
                                    unless previously  redeemed, at  a conversion  price  of
                                    $   per share, subject to adjustment in certain events.

Redemption at the Option of the
 Company..........................  On  or after October  3, 1997, the  Company may, upon at
                                    least 15 days notice, redeem  the Notes at par plus  the
                                    stated  coupon (declining  ratably to  par at maturity),
                                    together  with  accrued  and  unpaid  interest  thereon,
                                    except  that  the Notes  may  not be  redeemed  prior to
                                    October 3, 1999 unless the  closing price of the  Common
                                    Stock  is at least  125% of the  conversion price for at
                                    least 20 trading days within a period of 30  consecutive
                                    trading  days ending on  the fifth trading  day prior to
                                    the notice of redemption.

Repurchase Upon Designated
 Events...........................  The Notes  are required  to be  repurchased at  101%  of
                                    their  principal amount together with accrued and unpaid
                                    interest thereon, at the option of the holder, upon  the
                                    occurrence of certain events.

Subordination.....................  The  Notes will be unsecured  obligations of the Company
                                    and will  be subordinated  in right  of payment  to  all
                                    existing and future Senior Debt of the Company.

Use of Proceeds...................  For  expansion of manufacturing capacity and for general
                                    corporate purposes, including working capital.

Listing...........................  The Company intends to apply for approval for  quotation
                                    of the Notes on the Nasdaq Stock Market under the symbol
                                    "VLSIX."  The  Common  Stock  is  traded  on  the Nasdaq
                                    National Market under the symbol "VLSI."
</TABLE>

                                       4
<PAGE>
                      SUMMARY CONSOLIDATED FINANCIAL DATA
                (in thousands, except ratios and per share data)

<TABLE>
<CAPTION>
                                                                                                   SIX MONTHS ENDED (5)
                                                          FISCAL YEAR (1)                   ----------------------------------
                                          ------------------------------------------------                         JUNE 30,
                                          1990 (2)    1991    1992 (3)  1993 (4)    1994      JULY 1, 1994         1995 (6)
                                          --------  --------  --------  --------  --------  -----------------   --------------
<S>                                       <C>       <C>       <C>       <C>       <C>       <C>                 <C>
CONSOLIDATED STATEMENT OF OPERATIONS
  DATA:
  Net revenues..........................  $324,828  $413,376  $428,498  $515,946  $587,091      $286,171           $347,424
  Operating income (loss)...............    (6,062)   23,173   (19,282)   27,082    46,749        22,014             36,787
  Net income (loss).....................   (12,740)    9,873   (32,217)   15,883    31,697        14,698             11,545
  Net income (loss) per share...........  $  (0.52) $   0.37  $  (1.12) $   0.45  $   0.85      $   0.40           $   0.29
  Weighted average common and common
   equivalent shares outstanding........    24,339    26,657    28,865    35,276    37,446        37,201             39,579
OTHER DATA:
  EBITDA (7)............................  $ 42,823  $ 71,537  $ 27,740  $ 76,582  $108,510      $ 51,787           $ 51,638
  Capital expenditures (8)..............    35,296    52,062    40,123    63,475    90,694        53,409             62,369
  Ratio of earnings to fixed
   charges (9):
    Actual..............................        -- 10)    2.04x       -- 10)    2.73x    4.49x        4.57x           3.37x
    Pro forma as adjusted (11)..........                                             2.75x         2.67x              2.29x
  Ratio of EBITDA to interest
   expense (7):
    Actual..............................     4.72x     7.75x     3.06x     9.50x    12.38x        12.79x             10.95x
    Pro forma as adjusted (11)..........                                             5.95x         5.89x              5.46x
</TABLE>

<TABLE>
<CAPTION>
                                                                                               AT JUNE 30, 1995
                                                                                  -------------------------------------------
                                                                                                                PRO FORMA
                                                                                   ACTUAL   PRO FORMA (12)   AS ADJUSTED (13)
                                                                                  --------  --------------   ----------------
<S>                                                                               <C>       <C>              <C>
CONSOLIDATED BALANCE SHEET DATA:
  Working capital...............................................................  $234,391     $234,245          $380,245
  Total assets..................................................................   644,179      642,201           795,951
  Short-term debt, including current portion of long-term obligations...........    13,098       13,098            13,098
  Long-term debt and noncurrent capital lease obligations.......................   108,382       51,054           201,054
  Stockholders' equity..........................................................   369,584      425,630           425,630
<FN>
- ---------------
(1)  From 1990 through  1993, VLSI's fiscal  year end was  the last Saturday  of
     December.  In 1994,  the Company  changed its fiscal  year end  to the last
     Friday of December. The actual dates  of the Company's fiscal year ends  in
     the  table above  are December  29, 1990,  December 28,  1991, December 26,
     1992, December  25, 1993  and  December 30,  1994.  The fiscal  year  ended
     December  30, 1994 was a 53-week year. The current fiscal year is a 52-week
     year ending on December 29, 1995.

(2)  Includes a special charge of $12.8 million reflecting the estimated cost of
     corporate reorganization related to exiting the memory business.

(3)  Includes a special charge  of $22.5 million related  to the de-emphasis  of
     older  technologies,  costs  of streamlining  sales  distribution channels,
     costs of relocating certain offices, writedowns of nonperforming assets and
     costs associated with intellectual property matters.

(4)  Includes a  special charge  of  $1.0 million  representing a  write-off  of
     purchased  in-process  research  and development  expenses  related  to the
     acquisition of certain assets.

(5)  The six-month period  ended July  1, 1994 was  comprised of  27 weeks.  The
     six-month period ended June 30, 1995 was comprised of 26 weeks.

(6)  Includes  a  charge  of $19.4  million  relating to  litigation.  See "Risk
     Factors -- TI Litigation; Intellectual  Property Matters" and "Business  --
     Litigation."

(7)  EBITDA  is defined as  earnings before interest  income and other expenses,
     interest expense, taxes on income, depreciation and amortization. EBITDA is
     presented here  to  provide  additional  information  about  the  Company's
     ability  to meet its  future debt service,  capital expenditure and working
     capital requirements and should not be  construed as a substitute for or  a
     better  indicator of results of operations  or liquidity than net income or
     cash flow from operating activities  computed in accordance with  generally
     accepted  accounting principles. EBITDA  for the six  months ended June 30,
     1995 includes a charge of $19.4  million relating to litigation. See  "Risk
     Factors  -- TI Litigation; Intellectual  Property Matters" and "Business --
     Litigation."
</TABLE>

                                       5
<PAGE>

<TABLE>
<S>  <C>
(8)  Includes capitalized interest;  excludes additions to  property, plant  and
     equipment financed by capital leases.

(9)  The  ratio of earnings to fixed charges is computed by dividing (x) the sum
     of income  before  provision  for  income taxes  and  fixed  charges,  less
     capitalized  interest,  by  (y)  fixed charges.  Fixed  charges  consist of
     interest on all indebtedness, amortization of debt expense and discount  or
     premium  relating to indebtedness  and the estimated  interest component of
     rental expense.

(10) As a result of the loss incurred  for the years 1990 and 1992, the  Company
     was  unable  to  fully cover  fixed  charges.  The dollar  amounts  of such
     deficiencies in  1990  and  1992  were  $1.3  million  and  $18.9  million,
     respectively.

(11) Pro forma as adjusted ratios assume (i) the redemption or conversion of the
     Company's   7%   Convertible   Subordinated   Debentures   due   2012  (the
     "Debentures") after June 30, 1995 as  if such redemption or conversion  had
     been  consummated as of  the first day  of each fiscal  period and (ii) the
     sale of the Notes offered hereby and receipt of the estimated net  proceeds
     (assuming  no exercise  of the  Underwriters' over-allotment  option) as if
     such actions  had been  consummated as  of  the first  day of  each  fiscal
     period.

(12) Gives effect to the conversion or redemption of all of the Debentures after
     June 30, 1995.

(13) Adjusted  to reflect the conversion or  redemption of all of the Debentures
     after June  30, 1995  and the  sale of  the Notes  offered hereby  and  the
     receipt   of  the  estimated  net   proceeds,  assuming  the  Underwriters'
     over-allotment option is not exercised.
</TABLE>

                                       6
<PAGE>
                                  RISK FACTORS

    AN  INVESTMENT  IN  THE  NOTES  INVOLVES A  SIGNIFICANT  DEGREE  OF  RISK. A
PROSPECTIVE INVESTOR SHOULD CONSIDER CAREFULLY ALL OF THE INFORMATION  CONTAINED
IN  THIS  PROSPECTUS  BEFORE DECIDING  WHETHER  TO  PURCHASE THE  NOTES  AND, IN
PARTICULAR, SHOULD CONSIDER THE FOLLOWING FACTORS.

    FLUCTUATIONS IN OPERATING  RESULTS.   The Company believes  that its  future
operating  results will  be subject  to quarterly  variations based  upon a wide
variety of  factors, including  the cyclical  nature of  both the  semiconductor
industry  and the  markets addressed by  the Company's  products, price erosion,
competitive factors, fluctuations  in manufacturing  yields, the  timing of  new
product  introductions, changes in  product mix, the  availability and extent of
utilization  of  manufacturing   capacity,  product  obsolescence,   scheduling,
rescheduling  and  cancellation  of large  orders,  the ability  to  develop and
implement new  technologies,  changes  in effective  tax  rates  and  litigation
expenses.  The Company's  COMPASS subsidiary,  like other  companies in  the EDA
business, is particularly subject to significant fluctuations in revenues due to
limited backlog and its reliance on large orders placed late in the quarter. The
Company  increases  its   level  of   operating  expenses   and  investment   in
manufacturing  capacity in  anticipation of  future growth  in revenues.  To the
extent this revenue growth does not materialize, the Company's operating results
would be adversely affected. In circumstances where the Company is operating  at
less  than  full  capacity or  has  targeted  a market  segment  as  a long-term
strategic focus, the Company may choose, in the face of severe pricing pressure,
to manufacture products at low or no profitability. The Company's second quarter
financial results were adversely affected by a $19.4 million charge to  earnings
relating  to a May 1995  verdict against VLSI in  a patent infringement lawsuit.
See  "--  TI  Litigation;  Intellectual  Property  Matters"  and  "Business   --
Litigation."

    MANUFACTURING  CAPACITY LIMITATIONS.  The Company's manufacturing facilities
are operating at  capacity. As a  result, VLSI's growth  is constrained and  the
Company  has experienced difficulty  in meeting the  delivery dates requested by
customers. Although the Company intends to use the proceeds of this offering  to
increase  manufacturing  capacity,  there  can be  no  assurance  that  any such
increased capacity  will  be sufficient  to  satisfy demand  for  its  products.
Prolonged  inability of VLSI to deliver products in a timely manner could result
in the loss of customers and materially adversely affect results of  operations.
In addition, the Company is experiencing manufacturing inefficiencies associated
with the operation of its facilities at capacity while simultaneously working to
expand  or upgrade that  capacity. Significant lead time  is required to acquire
and install  additional wafer  fabrication  equipment. To  the extent  that  the
Company  is unable to procure and install such equipment in a timely manner, the
increase in wafer production capacity at its facilities would be delayed.

    In addition, available third-party wafer fabrication, assembly, testing  and
packaging  capacity has become very limited in recent months. The Company relied
on two outside suppliers for approximately  27% and 21% of its wafer  production
in  1994 and  the first  half of  1995, respectively.  Although the  Company has
ongoing relationships with these  suppliers, the Company  has only one  contract
for  guaranteed capacity.  The other supplier  has notified the  Company that it
will reduce its allocation of wafers to VLSI in the third quarter of 1995,  with
further  reductions from  the second quarter  of 1995 levels  through the second
quarter of 1996, and has indicated that  it does not intend to supply wafers  to
the  Company thereafter. There can  be no assurance that  such supplier will not
further reduce  its  allocation to  VLSI.  The  Company is  attempting  to  find
alternative  sources of wafer  supply. In addition, the  Company relies on three
suppliers  for  almost  all  assembly  operations.  Any  material  reduction  in
shipments  by the  Company's key  suppliers could  also have  a material adverse
effect on  the Company's  results of  operations. As  the Company  is  currently
unable  to  meet the  demands of  its  customers for  VLSI's products,  which is
adversely impacting the  businesses of the  Company's customers, some  customers
are  actively seeking to second source products currently obtained from VLSI. In
addition, VLSI's relationships with key customers may be negatively affected  by
the  Company's  inability to  meet  customer demands,  potentially  resulting in
material adverse impacts on the Company's future operating results.

    MANUFACTURING RISKS.  The fabrication of integrated circuits is an extremely
complex and  precise  process  consisting  of hundreds  of  separate  steps  and
requiring production in a highly controlled, clean

                                       7
<PAGE>
environment.  Minute impurities, errors in any  step of the fabrication process,
defects in the  masks used to  print circuits on  a wafer or  other factors  can
cause  a substantial percentage of wafers to be rejected or numerous die on each
wafer to  be nonfunctional.  The Company  may experience  problems in  achieving
acceptable  yields in the manufacture of wafers, particularly in connection with
any expansion of its capacity or change in its processing steps. For example, in
late 1992, the Company switched processes at one step in the manufacturing line,
which caused certain  VLSI chips  to fail.  The Company's  replacement of  these
chips  at no charge to the customers adversely affected results of operations in
the first quarter of 1993.

    In  addition  to  manufacturing  in  its  own  facilities,  VLSI  has  wafer
manufacturing  arrangements with two integrated circuit manufacturing companies.
These wafer subcontractors are  themselves subject to  all of the  manufacturing
risks  that are  applicable to  VLSI's own  wafer manufacturing  operations. The
Company also subcontracts virtually all of its integrated circuit packaging  and
a  significant portion of  its final testing to  third parties, principally ANAM
Industrial Company in Korea, ASE  Corporation in Taiwan, Advanced  Semiconductor
Assembly  Technology in Hong Kong and Mitsui Incorporated in Japan. In addition,
the Company's  foreign subcontract  manufacturing  arrangements are  subject  to
risks  such as changes in  government policies, transportation delays, increased
tariffs, fluctuations in foreign  exchange rates, and  export and tax  controls.
Any  problems experienced in obtaining acceptable  wafers from third party wafer
subcontractors on a timely basis to augment the Company's internal manufacturing
capacity or in the  integrated circuit packaging,  assembly and test  operations
performed  by subcontractors could delay shipments of the Company's products and
materially adversely affect the Company's results of operations.

    The Company's success  is also  dependent upon  its ability  to develop  and
implement  new  manufacturing  process  technologies.  Semiconductor  design and
process methodologies are subject to rapid technological change, requiring large
expenditures for research and  development. Most of  the Company's products  are
currently  manufactured using  sub-micron CMOS  processes. The  Company believes
that the transition to smaller  geometry process technologies will be  important
to  remaining  competitive.  The Company  is  in  the process  of  expanding and
upgrading  its  manufacturing  facility  in  San  Jose,  California  to  convert
production  to a 6-inch CMOS wafer  process. The Company's San Antonio facility,
which is  currently using  both 0.6-micron  and 0.8-micron  processes, is  being
converted to 100% 0.5-micron CMOS process capability and steps to facilitize the
third   and  fourth  modules  have  begun.   In  the  second  quarter  of  1995,
inefficiencies caused  by  the  work  associated with  the  conversions  of  the
manufacturing  facilities had a  negative effect on  the Company's overall gross
profit of approximately $2 million, or one percentage point of gross margin. The
work effort  associated with  the changes  to these  facilities will  negatively
affect  the Company's gross profit in the third quarter of 1995, could result in
further disruption to  manufacturing output as  well as wafer  yields and  could
have a material adverse impact on future operating results.

    The  Company is party  to a joint development  agreement with Hitachi, which
expires in 1997. Under such agreement, the Company and Hitachi work together  to
develop   advanced  sub-micron  processes  for  the  manufacture  of  integrated
circuits. In addition,  the Company is  dependent on Hitachi  for assistance  in
developing  other  state-of-the-art  manufacturing  processes.  Any  failure  or
disruption of the Company's joint  development activities could have a  material
adverse   effect  upon  the  Company's  ability  to  implement  state-of-the-art
manufacturing processes.

    The Company's San Jose  facility, which accounted  for approximately 41%  of
its  total internal production in the first  half of 1995, is located near major
earthquake faults and  in an area  that has  in the recent  past experienced  an
extended  drought.  Even though  the Company  utilizes  both of  its fabrication
plants and two subcontractors to manufacture  its wafers and has the ability  to
shift  manufacturing  from  one  plant  to another  for  many  of  its products,
disruption of operations at either of the Company's production facilities or  at
those  of its subcontractors for  any reason, such as  fire or earthquake, would
cause delays in shipments  until the Company could  shift the products from  the
affected facility or subcontractor to another facility.

                                       8
<PAGE>
    FUTURE CAPITAL NEEDS.  Semiconductor companies such as VLSI have substantial
ongoing  capital  requirements  to  obtain  internal  or  external manufacturing
capacity. In order  to remain  competitive, the  Company must  continue to  make
significant  investments in  capital equipment  and expansion  of facilities, as
well  as  in  research  and  development.  Development  and  implementation   of
sub-micron  manufacturing processes is particularly capital intensive, requiring
significant investments in new state-of-the-art equipment. The Company currently
has budgeted its capital expenditures for 1995 to be approximately $200 million.
The Company believes that the net proceeds of approximately $94 million from the
sale of the Common Stock in the Company's public offering in June 1995, together
with existing  cash balances,  cash flow  from operations,  available  equipment
financing and net proceeds of this Notes offering will be sufficient to meet the
Company's  liquidity and capital requirements through 1996. While the Company is
currently increasing  its  internal  manufacturing capacity  by  completing  the
build-out  of its  San Antonio  facility, the Company  believes it  will need to
further expand its internal capacity as  well as to explore methods to  increase
external  capacity. As a result,  the Company may be  required or choose to seek
additional equity or debt financing to fund further expansion of its internal or
external wafer fabrication capacity or for other purposes. The timing and amount
of such capital requirements cannot be precisely determined and will depend on a
number of factors,  including demand  for the Company's  products, product  mix,
changes  in semiconductor industry conditions and competitive factors. There can
be no assurance that such additional financing will be available when needed or,
if available, will  be on satisfactory  terms. The failure  to obtain  financing
would  hinder the  Company's ability  to make  continued investments  in capital
equipment and facilities, which could materially adversely affect the  Company's
results of operations.

    TI  LITIGATION; INTELLECTUAL PROPERTY MATTERS.   The Company is one of three
defendants in a major patent infringement suit brought by Texas Instruments with
respect to patents that have now expired, which suit resulted in a May 1995 jury
verdict against  VLSI for  damages  of $19.4  million.  The Company  intends  to
contest the verdict. However, the Company recorded a charge to earnings of $19.4
million  in the  second quarter of  1995. Based  on the jury's  finding that the
alleged infringement  was intentional,  TI has  requested that  the judge  award
enhanced  damages, pre-judgment interest and attorneys'  fees. In the event that
enhanced  damages  (which  by  statute  may  be  as  high  as  treble  damages),
pre-judgment  interest and/or  attorneys' fees  are awarded,  the judgment could
result in a material  reduction in liquidity, as  well as an additional  adverse
impact  on  the  Company's  reported results  of  operations.  See  "Business --
Litigation."

    The semiconductor industry is generally characterized by vigorous protection
and pursuit  of  intellectual  property  rights and  positions,  which  have  on
occasion  resulted in  protracted litigation  that utilizes  cash and management
resources, which can  have a  significant adverse effect  on operating  results.
There  can be no assurance that additional intellectual property claims will not
be made  against the  Company in  the future  or that  the Company  will not  be
prohibited  from using the technologies subject to such claims or be required to
obtain licenses and make corresponding royalty payments for past or future  use.
There  can  be  no  assurance  that  any  such  licenses  could  be  obtained on
commercially reasonable terms.

    DEPENDENCE ON PERSONAL COMPUTER INDUSTRY.  The Company estimates that  total
sales  to the personal  computer market during  1994 and the  first half of 1995
represented  approximately  47%   and  46%  of   the  Company's  net   revenues,
respectively. With seven of the Company's top ten customers in the first half of
1995  operating in the  personal computer industry,  a deterioration of business
conditions in  the personal  computer  industry would  have a  material  adverse
effect  on VLSI's  operations. The personal  computer market is  volatile and is
subject to  significant  shifts  in  demand and  severe  pricing  pressures.  In
addition,   the  market   for  the   Company's  personal   computer  devices  is
characterized by  rapid  technological  change  and  product  obsolescence.  The
Company's results in the personal computer market will also be dependent in part
on  the Company's ability to respond quickly to new microprocessor architectures
adopted by  major  OEMs.  The  Company's need  to  anticipate  customer  product
transitions  also leads to  potential inventory exposure,  which could adversely
affect the Company's financial results.

    CYCLICAL NATURE OF THE SEMICONDUCTOR  INDUSTRY.  The semiconductor  industry
has  historically been characterized by wide  fluctuations in product supply and
demand. From time to time, the industry

                                       9
<PAGE>
has also  experienced significant  downturns, often  in connection  with, or  in
anticipation of, declines in general economic conditions. These downturns, which
in  some cases  have lasted  for more  than a  year, have  been characterized by
diminished product demand, production  over-capacity and subsequent  accelerated
erosion  of  average  sales  prices. The  Company  historically  has experienced
prolonged over-capacity  for sustained  periods  of time  and  there can  be  no
assurance that the Company's efforts to increase manufacturing capacity will not
result  in future  sustained periods of  over-capacity. The  Company, like other
semiconductor manufacturers with  fabrication facilities, has  high fixed  costs
for  its manufacturing facilities  and believes that  its operating results were
adversely affected by an industry-wide downturn in the demand for semiconductors
in 1990. This  downturn coincided  with the recession  in the  U.S. economy  and
slower  growth in various electronics industries using semiconductors, including
market segments in which the Company was engaged at the time.

    NEW PRODUCT RISKS.  The Company's  future success depends on its ability  to
continue  to develop and introduce new  products that compete effectively on the
basis of  price and  performance  and that  satisfy customer  requirements.  The
Company  expects to continue  to invest in  the research and  development of new
products for all of its market segments during the balance of 1995. New  product
development  often requires long-term forecasting  of market trends, development
and implementation of  new processes  and technologies  and substantial  capital
commitments. If the Company is unable to design, develop, manufacture and market
new  products successfully and in a timely manner, its operating results will be
materially adversely  affected. No  assurance can  be given  that the  Company's
product  and process development efforts will be successful or that new products
will achieve market acceptance. For  example, the Company expended  considerable
financial  and  technical resources  during  1993 and  part  of 1994  toward the
development of its Polar  product, a device intended  for the handheld  computer
market  integrating Intel's  386SL microprocessor.  Because the  handheld market
developed more  slowly than  initial expectations,  the Company  and Intel,  its
partner  in  the  Polar  development  effort,  canceled  the  Polar  project and
terminated the amended July 8, 1992 Technology Agreement between the companies.

    COMPETITION.  The semiconductor industry in general and the markets in which
the Company competes  in particular are  intensely competitive, exhibiting  both
rapid technological change and ongoing price erosion as technologies mature. The
Company   competes  with  large   domestic  and  foreign   companies  that  have
substantially greater financial, technical,  marketing and management  resources
than  the Company,  such as  AT&T, IBM,  Intel, LSI,  Motorola, TI  and Toshiba.
Competition is particularly intense in X86  core logic chip sets where Intel,  a
dominant  supplier of microprocessors  to the PC industry,  has become the major
supplier of Pentium PC chip  sets, as well as  motherboards, which is likely  to
cause increased pricing and margin pressure on such chip sets. Competition faced
by  COMPASS  in the  EDA market  comes  primarily from  a few  large established
vendors, such as  Cadence and Mentor  Graphics. There is  no assurance that  the
Company will be able to compete successfully in the future.

    CONCENTRATION  OF CUSTOMER BASE.   Approximately two-thirds of the Company's
net revenues for the first  half of 1995 were derived  from sales to its top  20
customers, a large percentage of which are in the personal computer business. As
a  result  of  the  concentration  of  the  Company's  customer  base,  loss  or
cancellation of business from any of these major customers, significant  changes
in  scheduled deliveries to any of these customers or decreases in the prices of
products sold to any  of these customers could  materially adversely affect  the
Company's  results  of operations.  These  risks of  customer  concentration are
exacerbated by the fact that the Company's agreements with its customers for the
purchase of products are generally terminable by such customers at any time  and
permit  customers to cancel orders previously  placed for the Company's products
without penalty.  For example,  in  the fourth  quarter  of 1993,  Apple,  which
accounted  for  19%  of 1993  net  revenues,  postponed and,  in  certain cases,
canceled approximately $20 million of shipments originally planned for  delivery
in  1994, adversely  affecting VLSI's 1994  results of  operations. Shipments to
another customer, Compaq, accounted for 22% of  net revenues in 1994 and 11%  of
net revenues in the first six months of 1995.

    SUBORDINATION  OF NOTES.   The Notes  will be unsecured  and subordinated in
right of payment in full to all existing and future Senior Debt of the  Company.
As  a result of such  subordination, in the event  of bankruptcy, liquidation or
reorganization of the  Company, or  upon the  acceleration of  any Senior  Debt,

                                       10
<PAGE>
the assets of the Company will be available to pay obligations on the Notes only
after  all Senior Debt  has been paid in  full, and there  may not be sufficient
assets remaining to pay amounts due on any or all of the Notes then outstanding.
The Company expects from time to time to incur indebtedness constituting  Senior
Debt. The Notes are also structurally subordinated to the liabilities, including
trade  payables, of the Company's subsidiaries.  The Indenture does not prohibit
or limit the incurrence  of additional indebtedness,  including Senior Debt,  by
the Company or its subsidiaries and the incurrence of additional indebtedness by
the  Company or its subsidiaries could adversely affect the Company's ability to
pay its obligations on the  Notes. As of June 30,  1995, the Company would  have
had  approximately $64.2 million  of Senior Debt  outstanding (not including the
Debentures, which were converted  or redeemed subsequent to  June 30, 1995)  and
the  indebtedness  and  all  other  liabilities  of  the  Company's subsidiaries
(excluding  intercompany  indebtedness)  would  have  been  approximately  $33.9
million. See "Description of Notes -- Subordination."

    LIMITATIONS ON REPURCHASE OF NOTES.  Upon a Designated Event, which includes
a  Change of  Control (each as  defined below),  each holder of  Notes will have
certain rights, at the holder's option, to require the Company to repurchase all
or a portion of such holder's Notes. If a Designated Event were to occur,  there
can  be no  assurance that the  Company would  have sufficient funds  to pay the
repurchase price for all Notes tendered by the holders thereof. In addition, the
Company's repurchase of  Notes as  a result of  the occurrence  of a  Designated
Event  may be prohibited or limited by, or create an event of default under, the
terms of agreements related to borrowings which the Company may enter into  from
time  to time, including agreements relating to Senior Debt. See "Description of
Notes -- Repurchase Option of Holders upon a Designated Event."

    AVAILABILITY OF RAW  MATERIALS.   Raw materials essential  to the  Company's
business  are  generally  available  from  multiple  sources.  However,  due  to
increased levels of demand, there may be an industrywide shortage of raw silicon
wafers. A  prolonged  inability  to  obtain silicon  wafers  or  any  other  raw
materials could have a material adverse impact on the Company's business.

    ENVIRONMENTAL  REGULATIONS.  The Company is subject to a variety of federal,
state and local governmental regulations related to the storage, use,  discharge
and  disposal of  toxic, volatile or  otherwise hazardous chemicals  used in its
manufacturing process.  Increasing  public attention  has  been focused  on  the
environmental  impact of  semiconductor manufacturing  operations. The Company's
San Jose, California facilities are located near residential areas, which  could
increase  the incidence of environmental complaints or investigations. There can
be no assurance that  changes in environmental regulations  will not impose  the
need  for additional capital equipment or other requirements. Any failure by the
Company to  control the  use of,  or adequately  to restrict  the discharge  of,
hazardous  substances under present or future  regulations could subject VLSI to
substantial  liability  or  could  cause  its  manufacturing  operations  to  be
suspended. Such liability or suspension of manufacturing operations could have a
material adverse effect on the Company's operating results.

    ABSENCE  OF PUBLIC MARKET FOR THE  NOTES.  The Notes will  be a new issue of
securities with no established trading market. The Underwriters have advised the
Company that  they  currently  intend  to  make  a  market  in  the  Notes.  The
Underwriters  are not obligated, however, to make a market in the Notes, and any
such market making may be discontinued at any time at the sole discretion of the
Underwriters without notice. While  the Company currently  intends to apply  for
approval  for the Notes to be quoted on the Nasdaq Stock Market, there can be no
assurance that a trading market  for the Notes will  develop or, if such  market
does develop, as to the liquidity of such market.

    VOLATILITY  OF STOCK PRICE.  The  Company's Common Stock has experienced and
can be expected  to experience  substantial price volatility.  In addition,  the
stock  market in general has experienced  extreme price and volume fluctuations,
which have particularly affected the  market price of many technology  companies
and  which  have often  been  unrelated to  the  operating performance  of those
companies. See "Price Range of Common Stock and Dividend Policy."

    EFFECT OF POTENTIAL STOCK SALES.  Intel has the right to demand registration
of 2,677,604 shares  of VLSI  Common Stock  (the "Warrant  Shares") issued  upon
exercise  of a warrant in August 1995. Such registration rights may be exercised
by  Intel  at  any  time.  In   the  event  that  Intel  exercises  its   demand

                                       11
<PAGE>
registration  rights,  the  Company  will be  required  to  file  a registration
statement with respect to  the Warrant Shares with  the Securities and  Exchange
Commission  within  30  days  of  Intel's notice  to  VLSI,  subject  to certain
conditions. There can be no assurance that Intel will not elect to exercise  its
demand registration rights during or shortly after this offering, which election
could  adversely  affect the  market  price of  the  Company's Common  Stock. In
addition, as of  June 30, 1995,  approximately 3.2 million  vested and  unvested
shares  of  the Company's  Common Stock  (the "Option  Shares") were  subject to
employee and  director stock  options having  exercise prices  below the  market
price  of the  Common Stock  shown on  the cover  page of  this Prospectus. Many
optionees may  choose  to exercise  their  options  and sell  the  Common  Stock
acquired  upon  exercise in  the  coming months  due  to the  significant spread
between the exercise prices and current market prices. Sales of large numbers of
shares by Intel, optionees or others may have a depressing effect on the  market
price for the Company's Common Stock. See "Capitalization."

                                USE OF PROCEEDS

    The  net proceeds to the  Company from the sale  of Notes offered hereby are
estimated to be  approximately $146,000,000 ($167,937,500  if the  Underwriters'
over-allotment option is exercised in full). The proceeds will be used primarily
for  adding internal  and external  wafer fabrication  capacity and  for general
corporate purposes,  including  working  capital.  In  particular,  the  Company
intends  to  install  additional  manufacturing equipment  and  to  complete the
build-out of  its San  Antonio fabrication  facility to  increase  manufacturing
capacity.  Although the Company does not currently intend to use the proceeds of
this offering for the acquisition of  the business, products or technologies  of
other   companies,  it  may  in  the  future  enter  into  agreements  for  such
acquisitions.  There  are  no  pending  agreements  or  arrangements  concerning
material  acquisitions. Pending such uses, the Company intends to invest the net
proceeds in investment grade securities and interest-bearing obligations.

                PRICE RANGE OF COMMON STOCK AND DIVIDEND POLICY

    The Company's Common Stock  has been traded  on the over-the-counter  market
under  the Nasdaq symbol  "VLSI" since the Company's  initial public offering in
1983. The following table  sets forth, for the  periods indicated, the high  and
low  closing prices for the Common Stock on the Nasdaq National Market. The last
reported sale price for the  Common Stock of the Company  on August 25, 1995  as
reported  by the Nasdaq National  Market is set forth on  the cover page of this
Prospectus. At August 11, 1995, the Company  had 1,529 holders of record of  its
Common  Stock  and  44,074,537 shares  outstanding.  See also  "Risk  Factors --
Volatility of Stock Price" and "-- Effect of Potential Stock Sales."

<TABLE>
<CAPTION>
                                                                                    HIGH      LOW
                                                                                   ------    -----
<S>                                                                                <C>       <C>
1993:
  First Quarter.................................................................   $ 8 7/8   $ 6 3/4
  Second Quarter................................................................     8 7/8     6 1/2
  Third Quarter.................................................................    18 5/8     9 1/2
  Fourth Quarter................................................................    18 5/8     9 3/4
1994:
  First Quarter.................................................................   $16       $ 9 5/8
  Second Quarter................................................................    15 3/8    12 1/8
  Third Quarter.................................................................    15 15/16  11
  Fourth Quarter................................................................    13 1/8    10 1/2
1995:
  First Quarter.................................................................   $18 3/16  $11 11/16
  Second Quarter................................................................    30 1/8    16 3/4
  Third Quarter (through August 25, 1995).......................................    35 1/2    26 11/16
</TABLE>

    The Company has never paid cash  dividends on its Common Stock. The  Company
presently  intends to retain all cash for  use in the operation and expansion of
the Company's business and does not anticipate paying any cash dividends in  the
near future. Certain of VLSI's debt agreements prohibit the payment of dividends
without the lender's consent.

                                       12
<PAGE>
                                 CAPITALIZATION

    The  following  table  sets  forth  the  cash,  short-term  debt  and  total
capitalization of the Company at June 30,  1995, pro forma giving effect to  the
conversion  or redemption  of all of  the Company's  7% Convertible Subordinated
Debentures due 2012 prior to the date hereof, and pro forma as adjusted to  give
effect  to  the  offering  of  the  Notes  hereby,  assuming  the  Underwriters'
over-allotment option is not exercised.

<TABLE>
<CAPTION>
                                                                                    JUNE 30, 1995
                                                                     --------------------------------------------
                                                                                                     PRO FORMA
                                                                       ACTUAL     PRO FORMA (1)   AS ADJUSTED (2)
                                                                     -----------  --------------  ---------------
                                                                         (IN THOUSANDS EXCEPT PER SHARE DATA)
<S>                                                                  <C>          <C>             <C>
Cash, cash equivalents and liquid investments (3)..................  $   220,410   $    219,567     $   365,567
                                                                     -----------  --------------  ---------------
                                                                     -----------  --------------  ---------------
Short-term debt:
  Current portion of long-term debt................................  $     9,400   $      9,400     $     9,400
  Current capital lease obligations................................        3,698          3,698           3,698
                                                                     -----------  --------------  ---------------
    Total short-term debt..........................................  $    13,098   $     13,098     $    13,098
                                                                     -----------  --------------  ---------------
                                                                     -----------  --------------  ---------------
Long-term debt:
    % Convertible Subordinated Notes due 2005......................  $        --   $         --     $   150,000
  7% Convertible Subordinated Debentures due 2012..................       57,328             --              --
  Other long-term debt.............................................       47,071         47,071          47,071
  Noncurrent capital lease obligations.............................        3,983          3,983           3,983
                                                                     -----------  --------------  ---------------
    Total long-term debt...........................................      108,382         51,054         201,054
                                                                     -----------  --------------  ---------------
Stockholders' equity:
  Preferred Shares, $.01 par value, Authorized: 2,000,000 shares;
   no shares issued and outstanding................................           --             --              --
  Common Stock, $.01 par value, Authorized: 99,000,000 shares;
   Issued and outstanding actual: 41,403,953 shares; pro forma and
   as adjusted: 44,009,679 shares (4)..............................          414            440             440
  Junior Common Stock, $.01 par value, Authorized: 1,000,000
   shares; no shares issued and outstanding........................           --             --              --
  Additional paid-in capital.......................................      334,464        390,484         390,484
  Retained earnings................................................       34,706         34,706          34,706
                                                                     -----------  --------------  ---------------
    Total stockholders' equity.....................................      369,584        425,630         425,630
                                                                     -----------  --------------  ---------------
      Total capitalization.........................................  $   477,966   $    476,684     $   626,684
                                                                     -----------  --------------  ---------------
                                                                     -----------  --------------  ---------------
<FN>
- ------------
(1)  Gives effect to the conversion  or redemption of the Debentures  subsequent
     to June 30, 1995 pursuant to a standby underwritten call.
(2)  Adjusted  to reflect the conversion or  redemption of all of the Debentures
     after June 30, 1995 and the offering of the Notes hereby and receipt of the
     estimated net proceeds, assuming the Underwriters' over-allotment option is
     not exercised.
(3)  Cash and cash equivalents are defined as cash and instruments with maturity
     dates of 90  days or less.  Liquid investments are  defined as  instruments
     with maturity dates of between 91 and 365 days.
(4)  Excludes  (i)  1,364,874  shares  of Common  Stock  subject  to outstanding
     options under the Company's  1982 Incentive Stock  Option Plan, which  plan
     has  expired as  to future  grants, (ii)  4,162,723 shares  of Common Stock
     reserved for issuance upon  exercise of stock  options under the  Company's
     1992  Stock  Plan, of  which 1,681,320  shares  are subject  to outstanding
     options and 2,481,403 shares are available for future grant as of June  30,
     1995,  (iii) 2,443,950 shares  of Common Stock  reserved for issuance under
     the Company's employee stock purchase  plan, (iv) 275,000 shares of  Common
     Stock  reserved  for  issuance upon  exercise  of stock  options  under the
     Company's 1986 Directors' Stock  Option Plan, of  which 115,000 shares  are
     subject  to outstanding options and 160,000 shares are available for future
     grant, and  (v) 2,677,604  shares  of Common  Stock  issued to  Intel  upon
     exercise of a warrant in August 1995.
</TABLE>

                                       13
<PAGE>
                      SELECTED CONSOLIDATED FINANCIAL DATA

    The  consolidated statement of operations data set forth below for the years
ended December  26,  1992, December  25,  1993 and  December  30, 1994  and  the
consolidated  balance sheet data at December 25,  1993 and December 30, 1994 are
derived from the financial statements of  the Company, audited by Ernst &  Young
LLP,  independent auditors, that  are incorporated herein  by reference, and are
qualified by reference to such financial statements. The consolidated  statement
of operations data for the years ended December 29, 1990, and December 28, 1991,
and  the consolidated balance sheet data at December 29, 1990, December 28, 1991
and December 26, 1992 are derived from financial statements of the Company  that
also  have been audited by Ernst & Young  LLP but are not incorporated herein by
reference. The financial  data at June  30, 1995 and  for the six-month  periods
ended  July  1, 1994  and June  30,  1995 are  derived from  unaudited financial
statements, which include all adjustments,  consisting only of normal  recurring
accruals,  that the Company  considers necessary for a  fair presentation of the
consolidated financial position and the  consolidated results of operations  for
these  periods. Operating results for the six months ended June 30, 1995 are not
necessarily indicative of the results that may be expected for future periods or
for the year ending December  29, 1995. The data  should be read in  conjunction
with  the consolidated financial  statements, related notes  and other financial
information included herein or incorporated herein by reference.
<TABLE>
<CAPTION>
                                                 FISCAL YEAR (1)(2)                                SIX MONTHS ENDED (3)
                              --------------------------------------------------------    --------------------------------------
                                1990        1991        1992        1993        1994      JULY 1, 1994 (2)       JUNE 30, 1995
                              --------    --------    --------    --------    --------    -----------------     ----------------
                                                       (IN THOUSANDS, EXCEPT RATIOS AND PER SHARE DATA)
<S>                           <C>         <C>         <C>         <C>         <C>         <C>                   <C>
CONSOLIDATED STATEMENT OF
  OPERATIONS DATA:
  Net revenues..............  $324,828    $413,376    $428,498    $515,946    $587,091         $286,171              $347,424
  Cost of sales.............   215,757     275,414     293,392     327,774     356,858          174,811               208,767
                              --------    --------    --------    --------    --------    -----------------     ----------------
    Gross profit............   109,071     137,962     135,106     188,172     230,233          111,360               138,657
  Operating expenses:
    Research and
     development............    35,521      39,167      50,442      65,431      78,889           38,603                42,936
    Marketing, general and
     administrative.........    66,862      75,622      81,446      94,651     104,595           50,743                58,934
    Special charge..........    12,750(4)       --      22,500(5)    1,008(6)       --               --                    --
                              --------    --------    --------    --------    --------    -----------------     ----------------
  Operating income (loss)...    (6,062)     23,173     (19,282)     27,082      46,749           22,014                36,787
  Litigation charge.........        --          --          --          --          --               --               (19,400)(7)
  Interest income and other
   expenses (net)...........     2,395      (1,161)     (3,282)      1,512       3,301            1,510                 2,425
  Interest expense..........    (9,073)     (9,234)     (9,053)     (8,063)     (8,343)          (4,048)               (3,317)
                              --------    --------    --------    --------    --------    -----------------     ----------------
  Income (loss) before
   provision for taxes on
   income...................   (12,740)     12,778     (31,617)     20,531      41,707           19,476                16,495
  Provision for taxes on
   income...................        --       2,905         600       4,648      10,010            4,778                 4,950
                              --------    --------    --------    --------    --------    -----------------     ----------------
  Net income (loss).........  $(12,740)   $  9,873    $(32,217)   $ 15,883    $ 31,697         $ 14,698              $ 11,545
                              --------    --------    --------    --------    --------    -----------------     ----------------
                              --------    --------    --------    --------    --------    -----------------     ----------------
  Net income (loss) per
   share....................  $  (0.52)   $   0.37    $  (1.12)   $   0.45    $   0.85         $   0.40              $   0.29
                              --------    --------    --------    --------    --------    -----------------     ----------------
                              --------    --------    --------    --------    --------    -----------------     ----------------
  Weighted average common
   and common equivalent
   shares outstanding.......    24,339      26,657      28,865      35,276      37,446           37,201                39,579
OTHER DATA:
  EBITDA (8)................  $ 42,823    $ 71,537    $ 27,740    $ 76,582    $108,510         $ 51,787              $ 51,638
  Capital expenditures
   (9)......................    35,296      52,062      40,123      63,475      90,694           53,409                62,369
  Ratio of earnings to fixed
   charges (10):
    Actual..................        --(11)    2.04x         --(11)    2.73x      4.49x            4.57x                 3.37x
    Pro forma as adjusted
     (11)...................                                                     2.75x            2.67x                 2.29x
  Ratio of EBITDA to
   interest
   expense (8):
    Actual..................     4.72x       7.75x       3.06x       9.50x      12.38x           12.79x                10.95x
    Pro forma as adjusted
     (12)...................                                                     5.95x            5.89x                 5.46x

<CAPTION>

                                                 FISCAL YEAR (1)(2)                                SIX MONTHS ENDED (3)
                              --------------------------------------------------------    --------------------------------------
                                1990        1991        1992        1993        1994      JULY 1, 1994 (2)       JUNE 30, 1995
                              --------    --------    --------    --------    --------    -----------------     ----------------
<S>                           <C>         <C>         <C>         <C>         <C>         <C>                   <C>
  Net revenues..............     100.0%      100.0%      100.0%      100.0%      100.0%           100.0%                100.0%
  Cost of sales.............      66.4        66.6        68.5        63.5        60.8             61.1                  60.1
                              --------    --------    --------    --------    --------    -----------------     ----------------
    Gross profit............      33.6        33.4        31.5        36.5        39.2             38.9                  39.9
  Operating expenses:
    Research and
     development............      10.9         9.5        11.8        12.7        13.4             13.5                  12.3
    Marketing, general and
     administrative.........      20.7        18.3        19.0        18.3        17.8             17.7                  17.0
    Special charge..........       3.9(4)       --         5.2(5)      0.2(6)       --               --                    --
                              --------    --------    --------    --------    --------    -----------------     ----------------
  Operating income (loss)...      (1.9)        5.6        (4.5)        5.3         8.0              7.7                  10.6
  Litigation charge.........        --          --          --          --          --               --                   5.6(7)
  Interest expense and
   other, net...............       2.0         2.5         2.9         1.3         0.9              0.9                   0.3
  Provision for taxes on
   income...................        --         0.7         0.1         0.9         1.7              1.7                   1.4
                              --------    --------    --------    --------    --------    -----------------     ----------------
  Net income (loss).........      (3.9)%       2.4%       (7.5)%       3.1%        5.4%             5.1%                  3.3%
                              --------    --------    --------    --------    --------    -----------------     ----------------
                              --------    --------    --------    --------    --------    -----------------     ----------------
</TABLE>

<TABLE>
<CAPTION>
                                                                           AT FISCAL YEAR END (1)
                                                              ------------------------------------------------        AT
                                                                1990      1991      1992      1993      1994    JUNE 30, 1995
                                                              --------  --------  --------  --------  --------  --------------
                                                                               (IN THOUSANDS)
<S>                                                           <C>       <C>       <C>       <C>       <C>       <C>
CONSOLIDATED BALANCE SHEET DATA:
  Working capital...........................................  $ 65,960  $ 76,127  $102,149  $114,423  $138,704     $234,391
  Total assets..............................................   327,340   364,018   368,208   412,223   490,216      644,179
  Short-term debt, including current portion of long-term
   obligations..............................................    34,945    39,661    15,707    14,606    15,516       13,098
  Long-term debt and non-current capital lease
   obligations..............................................    89,277    92,633    83,178    85,855    96,804      108,382
  Stockholders' equity......................................   147,110   161,628   185,008   212,508   255,430      369,584
</TABLE>

                                       14
<PAGE>
<TABLE>
<S>                                                           <C>       <C>       <C>       <C>       <C>       <C>
<FN>
- -------------

(1)  From 1990 through  1993, VLSI's fiscal  year end was  the last Saturday  of
     December.  In 1994,  the Company  changed its fiscal  year end  to the last
     Friday of December. The actual dates  of the Company's fiscal year ends  in
     the  table above  are December  29, 1990,  December 28,  1991, December 26,
     1992, December  25, 1993  and  December 30,  1994.  The fiscal  year  ended
     December  30, 1994 was a 53-week year. The current fiscal year is a 52-week
     year ending on December 29, 1995.

(2)  During 1994, the Company reclassified costs associated with its  Technology
     Centers  from  research and  development to  cost  of sales  and marketing,
     general and  administrative  in  order  to make  the  presentation  of  the
     Company's   financial  statements   more  comparable   with  the  financial
     statements of its closest competitors and  to better reflect the nature  of
     these  costs. Amounts reclassified in 1990, 1991, 1992, 1993 and 1994 total
     $18.1 million,  $18.8  million,  $19.1 million,  $18.4  million  and  $22.7
     million,  respectively. Cost of  sales were increased  $14.1 million, $14.7
     million, $14.9 million,  $14.2 million  and $17.9 million  for 1990,  1991,
     1992,  1993 and  1994, respectively. Marketing,  general and administrative
     expenses were  increased $4.0  million, $4.1  million, $4.2  million,  $4.2
     million and $4.8 million for 1990, 1991, 1992, 1993 and 1994, respectively.

(3)  The  six-month period  ended July  1, 1994 was  comprised of  27 weeks. The
     six-month period ended June 30, 1995 was comprised of 26 weeks.

(4)  Represents a special charge of $12.8 million reflecting the estimated  cost
     of corporate reorganization related to exiting the memory business.

(5)  Represents  a special charge of $22.5 million related to the de-emphasis of
     older technologies,  costs  of streamlining  sales  distribution  channels,
     costs of relocating certain offices, writedowns of nonperforming assets and
     costs associated with intellectual property matters.

(6)  Represents  a  special charge  of $1.0  million  reflecting a  write-off of
     purchased in-process  research  and  development expenses  related  to  the
     acquisition of certain assets.

(7)  Represents  a charge  of $19.4  million relating  to litigation.  See "Risk
     Factors -- TI Litigation; Intellectual  Property Matters" and "Business  --
     Litigation."

(8)  EBITDA  is defined as  earnings before interest  income and other expenses,
     interest expense, taxes on income, depreciation and amortization. EBTIDA is
     presented here  to  provide  additional  information  about  the  Company's
     ability  to meet its future debt  service, capital expenditure, and working
     capital requirements and should not be  construed as a substitute for or  a
     better  indicator of results of operations  or liquidity than net income or
     cash flow from operating activities  computed in accordance with  generally
     accepted  accounting principles. EBITDA  for the six  months ended June 30,
     1995 includes a charge of $19.4  million relating to litigation. See  "Risk
     Factors  -- TI Litigation; Intellectual  Property Matters" and "Business --
     Litigation."

(9)  Includes capitalized interest;  excludes additions to  property, plant  and
     equipment financed by capital leases.

(10) The  ratio of earnings to fixed charges is computed by dividing (x) the sum
     of income  before  provision  for  income taxes  and  fixed  charges,  less
     capitalized  interest,  by  (y)  fixed charges.  Fixed  charges  consist of
     interest on all indebtedness, amortization of debt expense and discount  or
     premium  relating to indebtedness, and  the estimated interest component of
     rental expense.

(11) As a result of the loss incurred  for the years 1990 and 1992, the  Company
     was unable to fully cover fixed charges. The amount of such deficiencies in
     1990 and 1992 were $1.3 million and $18.9 million, respectively.

(12) Pro forma as adjusted ratios assume (i) the redemption or conversion of the
     Debentures after June 30, 1995 as if such redemption or conversion had been
     consummated  as of the first day of each fiscal period and (ii) the sale of
     the Notes  offered  hereby  and  receipt  of  the  estimated  net  proceeds
     (assuming  no exercise  of the  Underwriters' over-allotment  option) as if
     such actions  had been  consummated as  of  the first  day of  each  fiscal
     period.
</TABLE>

                                       15
<PAGE>
                                    BUSINESS

    VLSI  is a  leader in  the design,  manufacture and  sale of  highly complex
application specific integrated circuits ("ASICs") -- custom chips designed  for
an  individual customer -- and  application specific standard products ("ASSPs")
- -- semi-custom chips designed  for a particular market  application that may  be
used  by several different customers. The Company targets high-volume markets in
which it has built significant expertise and can use its library of  proprietary
cells  and highly  integrated building blocks  to assist  customers in designing
products in and bringing them to  market rapidly. VLSI's target markets  include
the  computing,  communications  and consumer  and  entertainment  markets. VLSI
emphasizes  high  performance  applications  where  its  products  are  critical
elements  of complex electronic systems. VLSI  targets key OEM customers who are
leaders in their  respective industries. The  Company's major customers  include
Compaq, Apple, Ericsson, Hewlett-Packard, Silicon Graphics, Tellabs and Alcatel.

    VLSI  produces a significant portion of its wafers (approximately 79% in the
first  half  of  1995)  at  its   own  facilities  and  augments  its   internal
manufacturing   capacity  with   the  foundry  services   of  third-party  wafer
subcontractors. The  Company  believes  that  this  strategy  improves  quality,
cost-effectiveness,  responsiveness to customers, access to capacity, ability to
implement leading edge  process technology and  time to market,  as compared  to
semiconductor  companies  that  lack fabrication  facilities.  The semiconductor
industry  is,   however,  currently   facing  capacity   constraints  in   wafer
manufacturing and the availability of third-party wafer foundries has diminished
significantly. Due to this manufacturing capacity shortage, as well as increased
customer  demand,  the  Company  is  seeking  to  accelerate  the  expansion and
upgrading of its internal and external manufacturing capacity. The Company is in
the process  of completing  the build-out  of its  fabrication facility  in  San
Antonio,  Texas in  order to increase  its internal  manufacturing capacity. The
Company has  taken  steps to  secure  deliveries of  long  lead-time  equipment,
including  steppers,  necessary  to  support  approximately  a  50%  increase in
internal wafer starts from the fourth quarter  of 1995 to the fourth quarter  of
1996.

    Through  its subsidiary,  COMPASS Design Automation,  Inc. ("COMPASS"), VLSI
offers an  integrated suite  of electronic  design automation  ("EDA")  software
tools,  foundry-flexible libraries and  support services for  use by systems and
circuit designers at other  semiconductor and systems companies,  as well as  at
the Company, in creating complex integrated circuits.

BUSINESS STRATEGY

    VLSI's  objective is  to design  and manufacture  highly-integrated, complex
semiconductor devices that allow  its customers to develop  and bring to  market
higher value-added systems and products. Key elements in its strategy to achieve
this objective include:

    - TARGET  HIGH-VOLUME MARKETS. VLSI targets  high-volume markets in which it
      has built significant expertise and can utilize its library of proprietary
      cells and  high-level building  blocks to  assist customers  in  designing
      products  and in bringing them to  market rapidly. VLSI believes that this
      allows the Company  to offer more  value to the  customer at higher  gross
      margins for the Company.

    - FOCUS   ON  LARGE,  INDUSTRY-LEADING  OEM   CUSTOMERS.  VLSI  focuses  its
      manufacturing and research and development  resources on products for  OEM
      customers  that  are leaders  in their  respective industries.  During the
      first half of 1995, approximately two-thirds of the Company's net revenues
      were derived from sales to its top 20 customers, including Compaq,  Apple,
      Ericsson, Hewlett-Packard, Silicon Graphics, Tellabs and Alcatel.

    - EMPHASIZE  STANDARD CELL  ASICS AND  ASSPS. VLSI  emphasizes standard cell
      ASICs and ASSPs rather  than gate arrays  and other design  methodologies.
      The  Company  believes  that  the standard  cell  approach  is  a superior
      methodology for  satisfying the  size, performance  and power  consumption
      requirements  of  the  highly  complex products  that  form  VLSI's target
      markets.

                                       16
<PAGE>
    - LEVERAGE LIBRARY OF STANDARD  CELLS TO REDUCE  CUSTOMERS' TIME TO  MARKET.
      VLSI's Functional System Block ("FSB") library, an expanding collection of
      pre-designed  cells  and high-level  building blocks,  provides frequently
      used integrated circuit  functions. The  FSB library allows  VLSI and  its
      customers  to more rapidly design and integrate products, thereby reducing
      VLSI's customers' time to market. VLSI's library of FSBs includes Graphics
      Controllers (LCD  and  CRT),  a  DES  Encryption  FSB,  a  PCI  FSB,  SCSI
      Controllers, an ARM RISC-based microprocessor (low power, high performance
      embedded   control  applications),  and  a   variety  of  FSBs  for  power
      management, communications for standards such as DECT, GSM and PHS, signal
      conversion, forward  error  correction, digital  demodulation,  MPEG2  and
      digital signal processing.

    - PROVIDE  ENGINEERING DESIGN  SUPPORT. The  Company seeks  to differentiate
      itself from its competitors not only through the quality of its  products,
      but  also through the level of its technological support and service. VLSI
      operates a network  of geographically dispersed  Technology Centers  where
      experienced  engineers with a specific technical focus work with customers
      to develop designs for new  products and to provide continuing  after-sale
      customer support. In 1993, VLSI established a Customer Excellence program,
      which  is designed to foster relationships  with customers through the use
      of teams focused on elements such as customer satisfaction,  manufacturing
      competence and technical excellence.

    - EMPLOY  BOTH INTERNAL AND EXTERNAL MANUFACTURING CAPACITY. VLSI produces a
      significant portion of its wafers (approximately 79% in the first half  of
      1995)  at its own facilities  and augments internal manufacturing capacity
      with the foundry services of third-party wafer subcontractors. The Company
      believes  that   this  strategy   improves  quality,   cost-effectiveness,
      responsiveness  to  customers, access  to  capacity, ability  to implement
      leading edge  process  technology  and  time to  market,  as  compared  to
      semiconductor    companies   that   lack   fabrication   facilities.   The
      semiconductor industry is, however, currently facing capacity  constraints
      in wafer manufacturing and the availability of third-party wafer foundries
      has diminished significantly. Due to this manufacturing capacity shortage,
      as well as increased customer demand, the Company is seeking to accelerate
      the  expansion and  upgrading of  its internal  and external manufacturing
      capacity. The Company is in the process of completing the build-out of its
      fabrication facility  in  San Antonio,  Texas  in order  to  increase  its
      internal  manufacturing capacity.  The Company  has taken  steps to secure
      deliveries of long lead-time  equipment, including steppers, necessary  to
      support  approximately a  50% increase in  internal wafer  starts from the
      fourth quarter of 1995 to the fourth quarter of 1996.

                                       17
<PAGE>
PRODUCTS AND MARKETS

    VLSI shipped  over 2,000  different products  in 1994.  The following  table
illustrates certain current VLSI products, their applications and customers, all
as selected by the Company in its discretion.

                      SELECTED VLSI PRODUCTS AND CUSTOMERS

<TABLE>
<CAPTION>
         TARGET MARKET                       SELECTED PRODUCTS AND DESCRIPTION              SELECTED CUSTOMER(S)
<S>                              <C>                                                        <C>
COMPUTING
ASICs and ASSPs for personal     Core logic chip sets for Pentium personal computers        AT&T, Compaq, NEC,
  computers, workstations and                                                               Hewlett-Packard,
  mass storage application                                                                  Packard Bell
                                 Core logic and multimedia ASICs for various Macintosh      Apple and Apple
                                   Power PC systems                                         licensees
                                 Core logic chip set for NexGen microprocessor              NexGen
                                 ASICs for Onyx high-end 3D Graphics and high volume        Silicon Graphics
                                   entry-level workstations
COMMUNICATIONS
ASICs and ASSPs for wireless     ASICs for Titan digital access cross connect system        Tellabs
  communication and network and    ASICs and ASSPs for ATM and hub/router based solutions   Cisco, Newbridge, UB
  voice application                                                                         Networks
                                 Handset and basestation chips for Japanese Personal Handy  Kyocera/Motorola
                                   System (PHS).
                                                                                            Ericsson
                                 Signal processing and call control chips for GSM phones
                                 ASICs for digital subscriber loop and central office       Alcatel, DSC
                                   application
CONSUMER & ENTERTAINMENT
ASICs and ASSPs for digital      Forward error correction chip and QPSK demodulator for     Hughes, Matsushita,
  satellite and cable set top      satellite set top box                                    NEC, Pioneer, Sagem,
  box, arcade and video game                                                                Sony, Thomson
  application
                                 High performance encryption engine chip                    AT&T
EDA
Electronic design automation of  Top-down design tools, which include ASIC Synthesizer-TM-  National
  complex ASICs, ICs and ASSPs     and Datapath Compiler-TM-                                Semiconductor,
                                                                                            Oak Technology,
                                                                                            Silicon Graphics
                                 Physical design tools, which include a floorplanning       Rockwell,
                                   tool, ChipPlanner-TM- and a place and route tool, Path   Tellabs, Thomson
                                   Finder-TM-
                                 Sub-micron physical library products                       Chips and
                                                                                            Technologies,
                                                                                            Hitachi, NEC, TI
</TABLE>

LITIGATION

    In  July 1990, Texas  Instruments filed two actions  against the Company and
four other defendants, Analog Devices, Inc., Integrated Device Technology,  Inc.
("IDT"),  LSI  Logic  Corporation  and  Cypress  Semiconductor  Corporation (the
Company and  such other  defendants  are collectively  referred  to as  the  "TI
Defendants"). IDT settled its cases with TI in late December 1992.

    In  the action filed before the United States International Trade Commission
("ITC"), TI sought to exclude from importation into the U.S. all TI  Defendants'
products  manufactured  outside  the  U.S.  that  allegedly  utilize  a  plastic
encapsulation process described in U.S. Patent No. 4,043,027 (the "027 patent").
On October 15, 1991, the Administrative  Law Judge ("ALJ") found the 027  patent
to  be valid  and infringed  by the  Company's old  plastic encapsulation gating
process. However, a new plastic encapsulation gating process developed and  used
by the TI Defendants was found not to infringe the 027 patent. In December 1991,
the  full ITC determined that it would  not consider TI's appeal to overturn the
ALJ's decision on noninfringement of the new process. The United States Court of
Appeals for the Federal Circuit affirmed the ITC decision in March 1993. The 027
patent has since expired.

                                       18
<PAGE>
    TI also filed a patent infringement action against the TI Defendants in  the
United  States  District Court  for the  Northern District  of Texas  seeking an
injunction against the sale and/or manufacture by the TI Defendants of  products
that  allegedly  infringe the  027 patent.  The action  also sought  damages for
alleged past infringement  of the  027 patent and  now expired  U.S. Patent  No.
43,716,764.  A trial for this matter was held in April 1995, which resulted in a
May 1995 verdict against VLSI for $19.4 million. The Company intends to  contest
the verdict. However, the Company recorded a charge to earnings of $19.4 million
in  the second  quarter of 1995.  Based on  the jury's finding  that the alleged
infringement was intentional,  TI has  requested that the  judge award  enhanced
damages,  pre-judgment interest and attorneys' fees.  In the event that enhanced
damages (which  by statute  may  be as  high  as treble  damages),  pre-judgment
interest  and/or attorneys'  fees are  awarded, the  judgment could  result in a
material reduction in liquidity, as well as an additional adverse impact on  the
Company's reported results of operations.

                                       19
<PAGE>
                              DESCRIPTION OF NOTES

    The  Notes will be issued under an indenture to be dated as of September   ,
1995 (the "Indenture") between the Company and Harris Trust and Savings Bank, as
trustee (the "Trustee"), a  copy of which  has been filed as  an exhibit to  the
Registration  Statement of which this Prospectus forms  a part. The terms of the
Notes will include those stated  in the Indenture and those  made a part of  the
Indenture  by reference  to the  Trust Indenture  Act of  1939, as  amended (the
"TIA"), as in effect on the date of the Indenture. The Notes will be subject  to
all  such terms, and holders of the Notes  are referred to the Indenture and the
TIA for a statement of such terms. The following is a summary of important terms
of the Notes and does  not purport to be complete.  Reference should be made  to
all  provisions of the  Indenture, including the  definitions therein of certain
terms and  all terms  made a  part of  the Indenture  by reference  to the  TIA.
Certain  definitions of terms used in the  following summary are set forth under
"-- Certain Definitions"  below. As used  in this section,  the "Company"  means
VLSI  Technology,  Inc., but  not any  of its  Subsidiaries, unless  the context
requires otherwise.

GENERAL

    The Notes will be general unsecured subordinated obligations of the Company,
will mature on October 1, 2005 (the "Maturity Date"), and will be limited to  an
aggregate  principal amount  of $150,000,000 ($172,500,000  if the Underwriters'
over-allotment option is exercised). The  Notes will be issued in  denominations
of  $1,000 and integral multiples of $1,000  in fully registered form. The Notes
are exchangeable  and  transfers  thereof will  be  registrable  without  charge
therefor,  but the Company may require payment  of a sum sufficient to cover any
tax or other governmental charge in connection therewith.

    The Notes will accrue interest at a rate of   % per annum from September   ,
1995, or from the most recent interest  payment date to which interest has  been
paid  or duly  provided for,  and accrued  and unpaid  interest will  be payable
semi-annually in arrears on April 1 and  October 1 of each year beginning  April
1,  1996.  Interest  will be  paid  to the  person  in  whose name  the  Note is
registered at the close of business on the March 15 or September 15  immediately
preceding  the relevant interest payment date (other than with respect to a Note
or portion thereof called for redemption on a redemption date, or repurchased in
connection with a Designated Event on a repurchase date, during the period  from
a  record date to (but excluding) the  next succeeding interest payment date (in
which case  accrued interest  shall  be payable  (unless  such Note  of  portion
thereof  is converted) to the holder of  the Note or portion thereof redeemed or
repurchased). Interest will be computed on the basis of a 360-day year comprised
of twelve 30-day months.

    Principal of, premium, if any, and interest on the Notes will be payable  at
the  office or  agency of  the Company  maintained for  such purpose  or, at the
option of the Company, payment  of interest may be made  by check mailed to  the
holders  of the Notes at their respective addresses set forth in the register of
holders of  Notes. Until  otherwise  designated by  the Company,  the  Company's
office  or agency  maintained for such  purpose will be  the principal corporate
trust office of the Trustee.

CONVERSION

    The holders of Notes will  be entitled at any  time after 60 days  following
the  original issuance thereof through the close of business on the last trading
day prior to  the Maturity Date  of the  Notes, subject to  prior redemption  or
repurchase, to convert any Notes or portions thereof (in denominations of $1,000
or  multiples thereof) into Common Stock of the Company, at the conversion price
of $   per share of Common Stock, subject to adjustment as described below  (the
"Conversion  Price"). Except as  described below, no adjustment  will be made on
conversion of any  Notes for interest  accrued thereon or  for dividends on  any
Common  Stock issued. If Notes  not called for redemption  are converted after a
record date  for  the payment  of  interest and  prior  to the  next  succeeding
interest  payment date,  such Notes  must be accompanied  by funds  equal to the
interest payable  on such  succeeding  interest payment  date on  the  principal
amount  so converted. The Company is not  required to issue fractional shares of
Common Stock upon  conversion of Notes  and, in  lieu thereof, will  pay a  cash
adjustment based upon the market

                                       20
<PAGE>
price  of  the  Common Stock  on  the last  trading  day  prior to  the  date of
conversion. In the case of Notes  called for redemption, conversion rights  will
expire  at the close of business on the trading day preceding the date fixed for
redemption, unless the Company defaults in  payment of the redemption price,  in
which  case the conversion right will terminate  at the close of business on the
date such default  is cured. In  the event any  holder exercises its  repurchase
right  upon a  Designated Event, such  holder's conversion  right will terminate
upon submission of written notice of exercise of such repurchase right  together
with  the Notes as to which such right is being exercised. See "-- Repurchase at
Option of Holders Upon a Designated Event."

    The right of conversion attaching to any Note may be exercised by the holder
by  delivering  the  Note  at  the  specified  office  of  a  conversion  agent,
accompanied  by a duly signed and  completed notice of conversion, together with
any funds that  may be  required as described  in the  preceding paragraph.  The
conversion  date  shall be  the  date on  which the  Note,  the duly  signed and
completed notice of conversion, and any funds that may be required as  described
in  the preceding paragraph shall have been  so delivered. A holder delivering a
Note for conversion will not be required  to pay any taxes or duties payable  in
respect  of the  issue or delivery  of Common  Stock on conversion,  but will be
required to pay any tax or duty which may be payable in respect of any  transfer
involved  in the issue or delivery of the  Common Stock in a name other than the
holder of the Note. Certificates representing shares of Common Stock will not be
issued or delivered unless all taxes and  duties, if any, payable by the  holder
have been paid.

    The  Conversion Price is subject to  adjustment (under formulae set forth in
the Indenture) in certain events, including: (i) the issuance of Common Stock as
a dividend  or  distribution  on  Common Stock  of  the  Company;  (ii)  certain
subdivisions  and combinations  of the Common  Stock; (iii) the  issuance to all
holders of Common Stock of certain rights or warrants to purchase Common  Stock;
(iv) the dividend or other distribution to all holders of Common Stock of shares
of  Capital  Stock of  the Company  (other  than Common  Stock) or  evidences of
indebtedness of the Company of assets (including securities, but excluding those
rights, warrants, dividends  and distributions referred  to above and  dividends
and  distributions in connection with the liquidation, dissolution or winding up
of  the  Company  or  paid  exclusively   in  cash);  (v)  dividends  or   other
distributions  consisting  exclusively of  cash (excluding  any cash  portion of
distributions referred to in clause (iv)) to all holders of Common Stock to  the
extent  such  distributions,  combined  together  with  (A)  all  such  all-cash
distributions made  within  the preceding  12  months  in respect  of  which  no
adjustment  has been made plus  (B) any cash and the  fair market value of other
consideration payable in respect of any tender  offers by the Company or any  of
its  Subsidiaries for Common  Stock concluded within the  preceding 12 months in
respect of  which no  adjustment has  been made,  exceeds 15%  of the  Company's
market capitalization (being the product of the then current market price of the
Common Stock times the number of shares of Common Stock then outstanding) on the
record  date  for  such distribution;  and  (vi)  the purchase  of  Common Stock
pursuant to a tender offer made by the Company or any of its subsidiaries to the
extent that the aggregate consideration, together with (X) any cash and the fair
market value  of any  other  consideration payable  in  any other  tender  offer
expiring  within 12 months  preceding such tender  offer in respect  of which no
adjustment has been  made plus  (Y) the aggregate  amount of  any such  all-cash
distributions  referred to in  clause (v) above  to all holders  of Common Stock
within the 12 months preceding the expiration of such tender offer in respect of
which no  adjustments  have been  made,  exceeds  15% of  the  Company's  market
capitalization on the expiration of such tender offer.

    The  Indenture will provide that, in the  event of the occurrence of certain
events affecting the rights (the "Rights") distributed pursuant to the Company's
First Amended  and Restated  Stockholder Rights  Plan, as  amended (the  "Rights
Plan"), appropriate adjustments to the Conversion Price will be made. In lieu of
any  such adjustment, the Company may amend the Rights Plan to provide that upon
conversion of the  Notes the  holder thereof will  receive, in  addition to  the
Common  Stock issuable upon  such conversion, the Rights  which attached to such
shares of Common Stock or would have  attached to such shares if the Rights  had
not  become separated from  the Common Stock  pursuant to the  provisions of the
Rights Plan.

                                       21
<PAGE>
    In the case of  (i) any reclassification  or change of  the Common Stock  or
(ii)  a consolidation, merger or combination involving  the Company or a sale or
conveyance to another corporation of the  property and assets of the Company  as
an  entirety or substantially as an entirety, in  each case as a result of which
holders of Common Stock  shall be entitled to  receive stock, other  securities,
other  property or assets  (including cash) with  respect to or  in exchange for
such Common Stock, the  holders of the Notes  then outstanding will be  entitled
thereafter  to convert such Notes  into the kind and  amount of shares of stock,
other securities or  other property or  assets, which they  would have owned  or
been  entitled  to receive  upon  such reclassification,  change, consolidation,
merger, combination,  sale or  conveyance  had such  Notes been  converted  into
Common  Stock immediately prior to such reclassification, change, consolidation,
merger, combination,  sale or  conveyance  (assuming, in  a  case in  which  the
Company's  stockholders may exercise rights of  election, that a holder of Notes
would not  have  exercised  any  rights  of election  as  to  the  stock,  other
securities  or other property  or assets receivable  in connection therewith and
received per share  the kind and  amount received  per share by  a plurality  of
non-electing  shares). Certain  of the foregoing  events may  also constitute or
result in a Designated  Event requiring the Company  to offer to repurchase  the
Notes. See "-- Repurchase at Option of Holders Upon a Designated Event."

    In  the event of a taxable distribution to holders of Common Stock (or other
transaction) which  results  in any  adjustment  of the  Conversion  Price,  the
holders  of Notes may,  in certain circumstances,  be deemed to  have received a
distribution subject to United States income tax as a dividend; in certain other
circumstances, the  absence  of such  an  adjustment  may result  in  a  taxable
dividend  to  the  holders of  Common  Stock.  See "Certain  Federal  Income Tax
Considerations."

    The Company from time to  time may, to the  extent permitted by law,  reduce
the  Conversion Price of the Notes  by any amount for any  period of at least 20
days, in which  case the Company  shall give at  least 15 days'  notice of  such
decrease,  if the Board of Directors has made a determination that such decrease
would be in  the best  interests of the  Company, which  determination shall  be
conclusive.  The  Company  may,  at  its option,  make  such  reductions  in the
Conversion Price,  in  addition  to those  set  forth  above, as  the  Board  of
Directors  deems advisable  to avoid  or diminish any  income tax  to holders of
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. See
"Certain Federal Income Tax Considerations."

    No  adjustment  in  the  Conversion  Price  will  be  required  unless  such
adjustment would require a change of at least 1% of the Conversion Price then in
effect; provided that any adjustment that would otherwise be required to be made
shall  be carried forward  and taken into account  in any subsequent adjustment.
Except as  stated above,  the Conversion  Price  will not  be adjusted  for  the
issuance  of Common Stock or any securities convertible into or exchangeable for
Common Stock or carrying the right to purchase any of the foregoing.

SUBORDINATION

    The payment of principal of, premium, if any, and interest on the Notes will
be subordinated in right of payment, as set forth in the Indenture, to the prior
payment in full  of all  Senior Debt,  whether outstanding  on the  date of  the
Indenture  or thereafter  incurred. Upon  any distribution  to creditors  of the
Company in  a liquidation  or dissolution  of the  Company or  in a  bankruptcy,
reorganization,  insolvency, receivership or similar  proceeding relating to the
Company or  its property,  an assignment  for the  benefit of  creditors or  any
marshalling  of the Company's assets and liabilities, the holders of Senior Debt
will be entitled to  receive payment in  full of all  obligations in respect  of
such  Senior Debt before  the holders of  Notes will be  entitled to receive any
payment with respect to the Notes.

    In the  event of  any  acceleration of  the Notes  because  of an  Event  of
Default,  the holders of any  Senior Debt then outstanding  would be entitled to
payment in full of  all obligations in  respect of such  Senior Debt before  the
holders  of the  Notes are  entitled to receive  any payment  or distribution in
respect thereof. The Indenture  will further require  that the Company  promptly
notify  holders of Senior Debt if payment of the Notes is accelerated because of
an Event of Default.

                                       22
<PAGE>
    The Company also may not make any payment upon or in respect of the Notes If
(i) a default in  the payment of  the principal of,  premium, if any,  interest,
rent  or other obligations  in respect of  Senior Debt occurs  and is continuing
beyond any applicable period of  grace or (ii) any  other default occurs and  is
continuing  with respect to  Designated Senior Debt that  permits holders of the
Designated Senior  Debt as  to  which such  default  relates to  accelerate  its
maturity  and the Trustee receives a notice of such default (a "Payment Blockage
Notice") from the Company  or other person permitted  to give such notice  under
the Indenture. Payments on the Notes may and shall be resumed (a) in the case of
a  payment default, upon the  date on which such default  is cured or waived and
(b) in case  of a  nonpayment default,  the earlier of  the date  on which  such
nonpayment  default is cured or  waived or 179 days after  the date on which the
applicable Payment  Blockage  Notice  is  received. No  new  period  of  payment
blockage  may be commenced unless and until  (i) 365 days have elapsed since the
effectiveness of  the immediately  prior Payment  Blockage Notice  and (ii)  all
scheduled payments of principal, premium, if any, and interest on the Notes that
have come due have been paid in full in cash. No nonpayment 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.

    By  reason of the subordination provisions  described above, in the event of
the Company's  liquidation or  insolvency, holders  of Senior  Debt may  receive
more,  ratably, and  holders of  the Notes may  receive less,  ratably, than the
other creditors  of  the  Company.  Such  subordination  will  not  prevent  the
occurrences of any Event of Default under the Indenture.

    The  Notes are obligations exclusively of  the Company. Since the operations
of the Company are partially conducted  through Subsidiaries, the cash flow  and
the consequent ability to service debt, including the Notes, of the Company, are
partially  dependent upon the earnings of  its Subsidiaries and the distribution
of those  earnings  to, or  upon  loans or  other  payments of  funds  by  those
Subsidiaries  to, the Company. The payment of  dividends and the making of loans
and advances to the Company by its  Subsidiaries may be subject to statutory  or
contractual  restrictions, are dependent upon the earnings of those Subsidiaries
and are subject to various business considerations.

    Any right of the Company to receive  assets of any of its Subsidiaries  upon
their  liquidation or reorganization (and the consequent right of the holders of
the Notes to participate  in those assets) will  be effectively subordinated  to
the claims of that Subsidiary's creditors (including trade creditors), except to
the  extent  that  the  Company  is itself  recognized  as  a  creditor  of such
Subsidiary, in which case the claims  of the Company would still be  subordinate
to  any security interests in the assets of such Subsidiary and any indebtedness
of such Subsidiary senior to that held by the Company.

    As of  June  30,  1995,  the Company  had  approximately  $64.2  million  of
indebtedness  outstanding  that would  have  constituted Senior  Debt (excluding
accrued interest and Senior Debt constituting liabilities of a type not required
to be reflected as a liability on the balance sheet of the Company in accordance
with GAAP and  not including the  Debentures, which were  converted or  redeemed
subsequent  to June 30, 1995).  As of June 30,  1995, there was also outstanding
approximately  $33.9   million  of   indebtedness  and   other  obligations   of
Subsidiaries  of the Company (excluding intercompany liabilities and liabilities
of a type not required  to be reflected as a  liability on the balance sheet  of
such subsidiaries in accordance with GAAP) as to which the Notes would have been
structurally subordinated. The Indenture will not limit the amount of additional
indebtedness, including Senior Debt, which the Company can create, incur, assume
or  guarantee, nor will the Indenture limit the amount of indebtedness and other
liabilities which any Subsidiary can create, incur, assume or guarantee.

    In the event that, notwithstanding the foregoing, the Trustee or any  holder
of  Notes receives any payment  or distribution of assets  of the Company of any
kind in contravention of  any of the  terms of the  Indenture, whether in  cash,
property  or  securities, including,  without limitation  by  way of  set-off or
otherwise, in respect of the Notes before all Senior Debt is paid in full,  then
such  payment or  distribution will be  held by  the recipient in  trust for the
benefit  of   holders   of  Senior   Debt,   and  will   be   immediately   paid

                                       23
<PAGE>
over  or delivered  to the  holders of  Senior Debt  or their  representative or
representatives to the extent  necessary to make payment  in full of all  Senior
Debt  remaining  unpaid,  after  giving  effect  to  any  concurrent  payment or
distribution, or provision therefor, to or for the holders of Senior Debt.

OPTIONAL REDEMPTION

    The Notes may be  redeemed at the  option of the Company,  in whole or  from
time to time in part, on and after October 3, 1997, on not less than 15 nor more
than  60 days' prior written notice to  the holders thereof by first class mail,
at the  following  redemption  prices (expressed  as  percentages  of  principal
amount)  if redeemed during the 12-month period beginning October 1 of each year
indicated (October 3 with respect to 1997), plus accrued and unpaid interest  to
the  date  fixed for  redemption; provided,  however, that  the Company  may not
redeem the Notes prior to October 3, 1999 unless the closing price of the Common
Stock on the principal  stock exchange or  market on which  the Common Stock  is
then  quoted or  admitted to  trading equals or  exceeds 125%  of the Conversion
Price for at least  20 trading days  within a period  of 30 consecutive  trading
days  ending on the fifth trading day prior to the date the notice of redemption
is first mailed to the holders of the Notes:

<TABLE>
<CAPTION>
                                                                         REDEMPTION
YEAR                                                                        PRICE
- ----------------------------------------------------------------------  -------------
<S>                                                                     <C>
1997..................................................................             %
1998..................................................................             %
1999..................................................................             %
2000..................................................................             %
2001..................................................................             %
2002..................................................................             %
2003..................................................................             %
2004..................................................................             %
2005..................................................................          100%
</TABLE>

    If less than all the Notes are to be redeemed, the Trustee will select Notes
for redemption  pro rata  or by  lot or  by any  other method  that the  Trustee
considers  fair and appropriate. The Trustee may select for redemption a portion
of the principal of any Note that  has a denomination larger than $1,000.  Notes
and  portions  thereof will  be redeemed  in  the amount  of $1,000  or integral
multiples of $1,000. The Trustee will make the selection from Notes  outstanding
and not previously called for redemption.

    Provisions  of the Indenture  that apply to the  Notes called for redemption
also apply to portions of the Notes called for redemption. If any Note is to  be
redeemed  in  part, the  notice  of redemption  will  state the  portion  of the
principal amount to be redeemed.  Upon surrender of a  Note that is redeemed  in
part  only,  the Company  will  execute and  the  Trustee will  authenticate and
deliver to the holder  a new Note  equal in principal  amount to the  unredeemed
portion of the Note surrendered.

    On  and after the redemption  date, unless the Company  shall default in the
payment of the redemption price, interest will cease to accrue on the  principal
amount  of the  Notes or  portions thereof called  for redemption  and for which
funds have been set apart for payment. In the case of Notes or portions  thereof
redeemed  on  a redemption  date which  is also  a regularly  scheduled interest
payment date, the interest payment due on such date shall be paid to the  person
in  whose name the Note  is registered at the close  of business on the relevant
record date.

REPURCHASE AT OPTION OF HOLDERS UPON A DESIGNATED EVENT

    Upon the occurrence of  a Designated Event, each  holder of Notes will  have
the  right to require the Company to repurchase all or any part (equal to $1,000
or an integral multiple  thereof) of such holder's  Notes pursuant to the  offer
described  below (the "Designated Event Offer") at  an offer price in cash equal
to 101%  of the  aggregate  principal amount  thereof  plus accrued  and  unpaid
interest  thereon  to the  date of  purchase  (the "Designated  Event Payment").
Within 20 days following any Designated Event, the Company will mail a notice to
each holder  describing  the transaction  or  transactions that  constitute  the
Designated  Event and  offering to repurchase  Notes pursuant  to the procedures
required by the Indenture and described in such notice.

                                       24
<PAGE>
    The Company  will comply  with  the requirements  of  Rule 14e-1  under  the
Exchange  Act and  any other securities  laws and regulations  thereunder to the
extent  such  laws  and  regulations  are  applicable  in  connection  with  the
repurchase of the Notes as a result of a Designated Event.

    On  the  date specified  for payment  of the  Designated Event  Payment (the
"Designated Event Payment Date"),  the Company will, to  the extent lawful,  (1)
accept  for payment all Notes or  portions thereof properly tendered pursuant to
the Designated Event Offer, (2) deposit with the paying agent an amount equal to
the Designated Event  Payment in  respect of all  Notes or  portions thereof  so
tendered  and (3) deliver or  cause to be delivered to  the Trustee the Notes so
accepted together with an Officers' Certificate stating the aggregate  principal
amount  of Notes or portions thereof being  purchased by the Company. The paying
agent will promptly  mail to  each holder of  Notes so  accepted the  Designated
Event  Payment for  such Notes, and  the Trustee will  promptly authenticate and
mail (or cause to be transferred by book entry) to each holder a new Note  equal
in principal amount to any unpurchased portion of the Notes surrendered, if any;
PROVIDED  that each such new Note will be  in a principal amount of $1,000 or an
integral multiple thereof.

    The repurchase feature of the Notes  may in certain circumstances make  more
difficult  or discourage a takeover of the  Company and the removal of incumbent
management. The foregoing provisions would not necessarily afford holders of the
Notes protection  in  the  event  of  highly  leveraged  or  other  transactions
involving the Company that may adversely affect holders.

    Except  as described above with respect to a Designated Event, the Indenture
does not contain provisions that permit the holders of the Notes to require that
the Company  repurchase  or  redeem  the  Notes in  the  event  of  a  takeover,
recapitalization  or similar restructuring. Subject to the limitation on mergers
and  consolidations  described  below,  the  Company,  its  management  or   its
Subsidiaries  could in  the future,  enter into  certain transactions, including
refinancings, certain  recapitalizations,  acquisitions,  the  sale  of  all  or
substantially  all  of its  assets, the  liquidation of  the Company  or similar
transactions, that would not constitute a Designated Event under the  Indenture,
but  that would increase the  amount of Senior Debt  (or any other indebtedness)
outstanding at  such time  or substantially  reduce or  eliminate the  Company's
assets.  There are no  restrictions in the  Indenture on the  creation of Senior
Debt  (or  any  other  indebtedness)  and,  under  certain  circumstances,   the
incurrence  of  significant amounts  of  additional indebtedness  could  have an
adverse effect on the Company's  ability to service its indebtedness,  including
the Notes.

    The  Credit Agreement  currently prohibits  the Company  from purchasing any
Notes and also provides  that certain change of  control events with respect  to
the  Company would constitute a default thereunder. Any future credit agreements
or other agreements relating to Senior Debt to which the Company becomes a party
may contain similar  restrictions and  provisions as well  as certain  financial
covenants.  In the event a Designated Event occurs at a time when the Company is
prohibited from purchasing  Notes, the  Company could  seek the  consent of  its
lenders  to the purchase of  Notes or could attempt  to refinance the borrowings
that contain such prohibition. If the Company does not obtain such a consent  or
repay such borrowings, the Company will remain prohibited from purchasing Notes.
In  such case, the Company's failure to purchase tendered Notes would constitute
an Event of  Default under  the Indenture which  would, in  turn, constitute  as
default  under the  Credit Agreement.  In such  circumstances, the subordination
provisions in the  Indenture would likely  restrict payments to  the holders  of
Notes.

    A  "Designated  Event" will  be deemed  to  have occurred  upon a  Change of
Control or a Termination of Trading.

    A "Change of Control" will be deemed to have occurred when: (i) any "person"
or "group" (as such terms are used  in Sections 13(d) and 14(d) of the  Exchange
Act)  is or becomes the "beneficial owner"  (as defined in Rules 13d-3 and 13d-5
under the Exchange  Act) of shares  representing more than  50% of the  combined
voting  power of the  then outstanding securities entitled  to vote generally in
elections of  directors  of  the  Company ("Voting  Stock"),  (ii)  the  Company
consolidates  with or merges into any  other corporation, or conveys, transfers,
or leases all or  substantially all of  its assets to any  person, or any  other
corporation  merges into the Company, and, in  the case of any such transaction,
the outstanding Common

                                       25
<PAGE>
Stock  of  the  Company  is  changed  or  exchanged  as  a  result,  unless  the
stockholders of the Company immediately before such transaction own, directly or
indirectly  immediately following such  transaction, at least  a majority of the
combined voting power of  the outstanding voting  securities of the  corporation
resulting  from such transaction  in substantially the  same proportion as their
ownership of the Voting Stock immediately before such transaction, or (iii)  any
time  the Continuing  Directors do  not constitute  a majority  of the  Board of
Directors of the  Company (or,  if applicable,  a successor  corporation to  the
Company); PROVIDED that a Change of Control shall not be deemed to have occurred
if  either (x) the last sale price of the Common Stock for any five trading days
during the ten trading  days immediately preceding the  Change of Control is  at
least equal to 105% of the Conversion Price in effect on the date of such Change
of Control or (y) at least 90% of the consideration (excluding cash payments for
fractional shares) in the transaction or transactions constituting the Change of
Control  consists of shares of common stock  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.

    "Continuing Directors" means, as of any date of determination, any member of
the Board of  Directors of the  Company who (i)  was a member  of such Board  of
Directors  on the date  of the Indenture  or (ii) was  nominated for election or
elected to  such Board  of Directors  with the  approval of  a majority  of  the
Continuing  Directors  who  were members  of  such  Board at  the  time  of such
nomination or election.

    The definition  of Change  of Control  includes a  phrase relating  to  the,
lease,  transfer, conveyance of "all or substantially  all" of the assets of the
Company. Although there is a developing body of case law interpreting the phrase
"substantially all," there is  no precise established  definition of the  phrase
under  applicable law. Accordingly, the ability of  a holder of Notes to require
the Company  to repurchase  such  Notes as  a result  of  a lease,  transfer  or
conveyance  of less than all  of the assets of the  Company to another person or
group may be uncertain.

    A "Termination of  Trading" will be  deemed to have  occurred if the  Common
Stock  (or other  common stock  into which  the Notes  are then  convertible) is
neither listed for trading on a  United States national securities exchange  nor
approved for trading on an established automated over-the-counter trading market
in the United States.

MERGER AND CONSOLIDATION

    The  Indenture will  provide that the  Company may not  consolidate or merge
with or into (whether or not the Company is the surviving corporation), or sell,
assign, transfer, lease, convey or otherwise dispose of all or substantially all
of its properties  or assets  in one or  more related  transactions, to  another
corporation,  person or  entity as an  entirety or substantially  as an entirety
unless (a) the Company is the surviving corporation or the entity or the  person
formed  by or  surviving any  such consolidation  or merger  (if other  than the
Company) or to which such sale, assignment, transfer, lease, conveyance or other
disposition shall have been  made is a corporation  organized or existing  under
the  laws of the United  States, any state thereof  or the District of Columbia;
(b) the entity or person formed by or surviving any such consolidation or merger
(if other  than  the Company)  or  the entity  or  person to  which  such  sale,
assignment,  transfer, lease,  conveyance or  other disposition  shall have been
made assumes  all  the  obligations of  the  Company  under the  Notes  and  the
Indenture pursuant to a supplemental indenture in a form reasonably satisfactory
to  the Trustee; (c) immediately  after such transaction no  Default or Event of
Default exists; and (d) the Company or  such person shall have delivered to  the
Trustee  an officers' certificate  and an opinion of  counsel, each stating that
such transaction and the  supplemental indenture comply  with the Indenture  and
that all conditions precedent in the Indenture relating to such transaction have
been satisfied.

    For  purposes of the foregoing, the  transfer (by lease, assignment, sale or
otherwise, in  a  single  transaction  or series  of  transactions)  of  all  or
substantially all of the properties or assets of one or more Subsidiaries of the
Company,  the capital stock of which constitutes all or substantially all of the
properties and assets of the Company, shall be deemed to be the transfer of  all
or substantially all of the properties and assets of the Company.

                                       26
<PAGE>
    Upon  any such  consolidation, merger, sale,  assignment, conveyance, lease,
transfer or other disposition  in accordance with  the foregoing, the  successor
person  formed by such consolidation  or into which the  Company is merged or to
which such sale, assignment, conveyance, lease, transfer or other disposition is
made will succeed to, and be substituted  for, and may exercise every right  and
power  of,  the Company  under the  Indenture with  the same  effect as  if such
successor had been named as the  Company therein, and thereafter (except in  the
case  of a sale,  assignment, transfer, lease,  conveyance or other disposition)
the predecessor  corporation will  be relieved  of all  further obligations  and
covenants under the Indenture and the Notes.

EVENTS OF DEFAULT AND REMEDIES

    An  Event of  Default is defined  in the  Indenture as being  (i) default in
payment of the principal of,  or premium, if any, on  the Notes, whether or  not
such  payment is  prohibited by the  subordination provisions  of the Indenture;
(ii) default for 30 days in payment of any installment of interest on the Notes,
whether or not such payment is prohibited by the subordination provisions of the
Indenture; (iii)  default  by  the Company  for  60  days after  notice  in  the
observance  or performance of any other covenants in the Indenture; (iv) default
in the payment of  the Designated Event  Payment in respect of  the Note on  the
date  therefor, whether or  not such payment is  prohibited by the subordination
provisions of  the  Indenture;  (v)  failure  to  provide  timely  notice  of  a
Designated Event; (vi) failure of the Company or any Material Subsidiary to make
any  payment at maturity,  including any applicable grace  period, in respect of
indebtedness for borrowed money of, or guaranteed or assumed by, the Company  or
any  Material Subsidiary which payment is in  an amount in excess of $25,000,000
and continuance of such failure for 30  days after notice; (vii) default by  the
Company  or any Material Subsidiary with respect to any such indebtedness, which
default results in the acceleration of such indebtedness in an amount in  excess
of  $25,000,000  without  such  indebtedness  having  been  discharged  or  such
acceleration having been cured, waived, rescinded, or annulled for 30 days after
notice;  or   (viii)  certain   events  involving   bankruptcy,  insolvency   or
reorganization of the Company or any Material Subsidiary.

    If  an Event of Default (other than  an Event of Default specified in clause
(viii) above with respect to the Company) occurs and is continuing, then and  in
every such case the Trustee, by written notice to the Company, or the holders of
not  less than 25% in aggregate principal  amount of the then outstanding Notes,
by written  notice  to the  Company  and the  Trustee,  may declare  the  unpaid
principal of, premium, if any, and accrued and unpaid interest on, all the Notes
then  outstanding to  be due and  payable. Upon such  declaration such principal
amount, premium, if any, and accrued and unpaid interest will become immediately
due and  payable, notwithstanding  anything contained  in the  Indenture or  the
Notes  to the contrary, but subject to the provisions limiting payment described
in "-- Subordination." If any Event of Default specified in clause (viii)  above
occurs  with respect to  the Company, all  unpaid principal of,  and premium, if
any, and  accrued  and unpaid  interest  on,  the Notes  then  outstanding  will
automatically become due and payable, subject to the provisions described in "--
Subordination, " without any declaration or other act on the part of the Trustee
or any holder of Notes.

    Holders  of the Notes may  not enforce the Indenture  or the Notes except as
provided in the Indenture. Subject to  the provisions of the Indenture  relating
to the duties of the Trustee, the Trustee is under no obligation to exercise any
of  its rights or powers under the  Indenture at the request, order or direction
of any  of the  holders, unless  such holders  have offered  to the  Trustee  an
indemnity  satisfactory to it against any loss, liability or expense. Subject to
all provisions of the Indenture and applicable law, the holders of a majority in
aggregate principal  amount of  the then  outstanding Notes  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.  If a Default or Event of Default occurs and is continuing and is known
to the Trustee, the Indenture requires the  Trustee to mail a notice of  Default
or  Event of  Default to each  holder within 60  days of the  occurrence of such
Default or Event of  Default, PROVIDED, HOWEVER, that  the Trustee may  withhold
from  the holders notice of any continuing Default or Event of Default (except a
Default or Event of Default in the  payment of principal of, premium, if any  or
interest  on the  Notes) if  it determines that  withholding notice  is in their
interest. The holders of a majority  in aggregate principal amount of the  Notes
then    outstanding    by   notice    to   the    Trustee   may    rescind   any

                                       27
<PAGE>
acceleration of the Notes and its consequences if all existing Events of Default
(other than the nonpayment of principal of, premium, if any, and interest on the
Notes which has  become due  solely by virtue  of such  acceleration) have  been
cured  or waived and if  the rescission would not  conflict with any judgment or
decree of any court of competent  jurisdiction. No such rescission shall  affect
any  subsequent  Default or  Event  of Default  or  impair any  right consequent
thereto.

    In the case  of any  Event of  Default occurring  by reason  of any  willful
action  (or inaction) taken (or  not taken) by or on  behalf of the Company with
the intention of avoiding payment of the premium that the Company would have had
to pay if  the Company  then had  elected to redeem  the Notes  pursuant to  the
optional  redemption provisions  of the  Indenture, an  equivalent premium shall
also become and be immediately  due and payable to  the extent permitted by  law
upon  the acceleration of the Notes. If an  Event of Default occurs prior to any
date on which the Company  is prohibited from redeeming  the Notes by reason  of
any  willful action (or  inaction) taken (or not  taken) by or  on behalf of the
Company with the  intention of  avoiding the  prohibition on  redemption of  the
Notes prior to such date, then the premium specified in the Indenture shall also
become  immediately due  and payable  to the  extent permitted  by law  upon the
acceleration of the Notes.

    The holders of a  majority in aggregate principal  amount of the Notes  then
outstanding  may, on  behalf of  the holders  of all  the Notes,  waive any past
Default or Event  of Default under  the Indenture and  its consequences,  except
Default  in the  payment of principal  of, premium,  if any, or  interest on the
Notes (other than the non-payment of principal of, premium, if any, and interest
on the Notes which has become due solely by virtue of an acceleration which  has
been  duly rescinded as provided above) or in respect of a covenant or provision
of the Indenture which cannot be modified or amended without the consent of  all
holders of Notes.

    The  Company  is required  to deliver  to the  Trustee annually  a statement
regarding compliance  with  the  Indenture  and the  Company  is  required  upon
becoming  aware of any Default or Event of  Default, to deliver to the Trustee a
statement specifying such Default or Event of Default.

AMENDMENT, SUPPLEMENT AND WAIVER

    Except as provided in the next  two succeeding paragraphs, the Indenture  or
the  Notes may be amended or supplemented with  the consent of the holders of at
least a majority in  principal amount of the  Notes then outstanding  (including
consents  obtained  in connection  with  a tender  offer  or exchange  offer for
Notes), and  any  existing default  or  compliance  with any  provision  of  the
Indenture  or the  Notes may  be waived  with the  consent of  the holders  of a
majority in principal amount of  the then outstanding Notes (including  consents
obtained in connection with a tender offer or exchange offer for Notes).

    Without  the consent of each holder affected, an amendment or waiver may not
(with respect to  any Notes  held by a  non-consenting holder):  (a) reduce  the
principal amount of Notes whose holders must consent to an amendment, supplement
or  waiver, (b) reduce the principal of or change the fixed maturity of any Note
or alter the provisions with respect to the redemption of the Notes, (c)  reduce
the rate of or change the time for payment of interest on any Notes, (d) waive a
Default  or Event of Default in the payment  of principal of or premium, if any,
or interest on the Notes  (except a rescission of  acceleration of the Notes  by
the  holders of at least  a majority in aggregate  principal amount of the Notes
and a waiver of the payment  default that resulted from such acceleration),  (e)
make any Note payable in money other than that stated in the Notes, (f) make any
change  in the provisions of the Indenture  relating to waivers of past Defaults
or the rights of holders of Notes to receive payments of principal of,  premium,
if any, or interest on the Notes, (g) waive a redemption payment with respect to
any  Note, (h) make any change in  the foregoing amendment and waiver provisions
or (i) except as  permitted by the Indenture,  increase the Conversion Price  or
modify  the provisions of the Indenture relating to conversion of the Notes in a
manner adverse  to  the holders  thereof.  In  addition, any  amendment  to  the
provisions  of Article 10 of the  Indenture (which relate to subordination) will
require the consent of the holders of at least 75% in aggregate principal amount
of the  Notes then  outstanding if  such amendment  would adversely  affect  the
rights of holders of Notes.

                                       28
<PAGE>
    Notwithstanding  the foregoing, without the consent  of any holder of Notes,
the Company and the Trustee may amend  or supplement the Indenture or the  Notes
to   (a)  cure  any   ambiguity,  defect  or   inconsistency,  (b)  provide  for
uncertificated Notes  in addition  to or  in place  of certificated  Notes,  (c)
provide  for the assumption of the Company's  obligations to holders of Notes in
the circumstances required under the Indenture as described under "-- Merger and
Consolidation," (d) provide for conversion rights of holders of Notes in certain
events such as a consolidation,  merger or sale of  all or substantially all  of
the  assets of the Company, (e) reduce the Conversion Price, (e) make any change
that would provide any additional rights or benefits to the holders of Notes  or
that  does not adversely affect the legal rights under the Indenture of any such
holder, or (f) comply with requirements of the Commission in order to effect  or
maintain the qualification of the Indenture under the TIA.

SATISFACTION AND DISCHARGE

    The  Company may discharge  its obligations under  the Indenture while Notes
remain outstanding if (i) all outstanding  Notes will become due and payable  at
their  scheduled  maturity within  one year  or (ii)  all outstanding  Notes are
scheduled for redemption within  one year, and in  either case, the Company  has
deposited  with  the  Trustee an  amount  sufficient  to pay  and  discharge all
outstanding Notes on the date of their scheduled maturity or the scheduled  date
of redemption.

GOVERNING LAW

    The Indenture will provide that the Notes will be governed by, and construed
in  accordance with, the laws of the State  of New York without giving effect to
applicable principles of conflicts of law.

TRANSFER AND EXCHANGE

    A holder may transfer  or exchange Notes in  accordance with the  Indenture.
The  Registrar and  the Trustee  may require  a holder,  among other  things, to
furnish appropriate  endorsements and  transfer documents  and the  Company  may
require  a holder to pay any taxes and  fees required by law or permitted by the
Indenture. The Company is not required to transfer or exchange any Note selected
for redemption. Also, the  Company is not required  to transfer or exchange  any
Note for a period of 15 days before a selection of Notes to be redeemed.

    The  registered holder of a Note will be  treated as the owner of it for all
purposes.

THE TRUSTEE

    The Indenture will provide that, except  during the continuance of an  Event
of  Default, the Trustee will  perform only such duties  as are specifically set
forth in the Indenture. In case an  Event of Default shall occur (and shall  not
be  cured) and holders of the Notes  have notified the Trustee, the Trustee will
be required  to exercise  its powers  with the  degree of  care and  skill of  a
prudent  person in  the conduct  of such person's  own affairs.  Subject to such
provisions, the Trustee is under no obligation to exercise any of its rights  or
powers under the Indenture at the request of any of the holders of Notes, unless
they  shall have offered  to the Trustee security  and indemnity satisfactory to
it.

    The Indenture and the TIA will contain certain limitations on the rights  of
the  Trustee, should it become  a creditor of the  Company, to obtain payment of
claims in certain cases or to realize on certain property received in respect of
any such claim as security or otherwise. Subject to the TIA, the Trustee will be
permitted to  engage  in  other  transactions, provided,  however,  that  if  it
acquires  any conflicting interest (as described  in the TIA), it must eliminate
such conflict or resign.

CERTAIN DEFINITIONS

    "Credit Agreement" means that certain Credit Agreement, dated as of June  6,
1994,  by and among  the Company and  the Lenders named  therein and Continental
Bank N.A.,  as  Agent, providing  for  up  to $52,500,000  of  revolving  credit
borrowings,  including  any  related  notes,  guarantees,  collateral documents,
instruments and agreements executed in connection therewith, and in each case as
amended, modified, renewed, refunded, replaced or refinanced from time to time.

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

                                       29
<PAGE>
    "Designated  Senior  Debt" means  any particular  Senior  Debt 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 Indebtedness shall be "Designated Senior Debt"  for
purposes  of the  Indenture (provided that  such instrument,  agreement or other
document may place limitations and conditions  on the right of such Senior  Debt
to exercise the rights of Designated Senior Debt).

    "Event of Default" has the meaning set forth under "-- Events of Default and
Remedies" herein.

    "GAAP"  means  generally accepted  accounting  principles set  forth  in the
opinions and pronouncements of the  Accounting Principles Board of the  American
Institute  of Certified Public Accountants  and statements and pronouncements of
the Financial Accounting  Standards Board or  in such other  statements by  such
other  entity as  may be  approved by  a significant  segment of  the accounting
profession of the United States, which are in effect from time to time.

    "Indebtedness" means, with respect to  any person, all obligations,  whether
or not contingent, of such person (i) (a) for borrowed money (including, but not
limited  to, any indebtedness secured by  a security interest, mortgage or other
lien on the assets of the  Company which is (1) given  to secure all or part  of
the  purchase price of property subject thereto,  whether given to the vendor of
such property  or  to another,  or  (2) existing  on  property at  the  time  of
acquisition  thereof),  (b)  evidenced by  a  note, debenture,  bond  or written
instrument, (c) under a lease required to be capitalized on the balance sheet of
the lessee  under GAAP  or under  any  lease or  related document  (including  a
purchase  agreement) which provides that  the Company is contractually obligated
to purchase or cause a third party  to purchase and thereby guarantee a  minimum
residual  value of the lease  property to the lessor  and the obligations of the
Company under such lease  or related document  to purchase or  to cause a  third
party  to purchase such  leased property, (d)  in respect of  letters of credit,
bank guarantees  or bankers'  acceptances (including  reimbursement  obligations
with  respect to any of the foregoing), (e) with respect to Indebtedness secured
by a  mortgage, pledge,  lien, encumbrance,  charge or  adverse claim  affecting
title  or resulting in  an encumbrance to  which the property  or assets of such
person are subject,  whether or not  the obligation secured  thereby shall  have
been  assumed by  or shall  otherwise be such  person's legal  liability, (f) in
respect of the balance of deferred and unpaid purchase price of any property  or
assets,  (g) under  interest rate  or currency  swap agreements,  cap, floor and
collar agreements,  spot  and  forward  contracts  and  similar  agreements  and
arrangements;  (ii)  with  respect  to  any obligation  of  others  of  the type
described in the preceding clause (i) or under clause (iii) below assumed by  or
guaranteed  in any manner by such person  or in effect guaranteed by such person
through an agreement to purchase  (including, without limitation, "take or  pay"
and  similar arrangements), contingent or otherwise (and the obligations of such
person under any such assumptions,  guarantees or other such arrangements);  and
(iii)  any and all deferrals,  renewals, extensions, refinancings and refundings
of, or amendments, modifications or supplements to, any of the foregoing.

    "Issue Date" means the date on  which the Notes are originally issued  under
the Indenture.

    "Material Subsidiary" means, at any date of determination, any Subsidiary of
the  Company that, together with its Subsidiaries,  as of the end of such fiscal
year, was the owner of more than 25% of the consolidated assets of the  Company,
after  eliminating any inter-company receivables of  such Subsidiary, all as set
forth on the most  recently available consolidated  financial statements of  the
Company  and  its consolidated  Subsidiaries for  such  fiscal year  prepared in
conformity with generally accepted accounting principles as then in effect.

    "Maturity Date" means October 1, 2005.

    "Obligations"   means    any   principal,    interest,   penalties,    fees,
indemnifications,  reimbursements, damages  and other  liabilities payable under
the documentation governing any Indebtedness.

    "Person" means  any  individual, corporation,  partnership,  joint  venture,
trust,  estate,  unincorporated  organization  or government  or  any  agency or
political subdivision thereof.

                                       30
<PAGE>
    "Senior Debt" means the principal of, premium, if any, and interest on, rent
under, and  any other  amounts payable  on or  in or  in respect  of the  Credit
Agreement  and  any  other  Indebtedness  of  the  Company  (including,  without
limitation, any Obligations in respect of such Indebtedness and, in the case  of
Designated  Senior Debt, any interest accruing after the filing of a petition by
or against the Company  under any bankruptcy  law, whether or  not allowed as  a
claim  after such filing  in any proceeding under  such bankruptcy law), whether
outstanding on  the  date of  the  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); PROVIDED,  however, that Senior Debt does not
include (v) Indebtedness evidenced by the Notes, (w) any liability for  federal,
state,  local or other taxes  owed or owing by  the Company, (x) Indebtedness of
the Company  to  any  Subsidiary  of  the Company  except  to  the  extent  such
Indebtedness  is  of  a type  described  in  clause (ii)  of  the  definition of
Indebtedness, (y) trade payables of the Company (other than, to the extent  they
may  otherwise constitute trade payables, any  obligations of the type described
in clause  (ii) of  the  definition of  Indebtedness),  and (z)  any  particular
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  Indebtedness shall  not  be
senior  in right  of payment to,  or is PARI  PASSU with, or  is subordinated or
junior to, the Notes.

    "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  entitled (without regard to the occurrence  of
any  contingency) to  vote in  the election  of directors,  managers or 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 the 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).

                                       31
<PAGE>
                   CERTAIN FEDERAL INCOME TAX CONSIDERATIONS

    The  following  is a  general discussion  of  certain United  States federal
income tax considerations relevant to holders  of the Notes. This discussion  is
based  upon the Internal Revenue Code of 1986, as amended (the "Code"), Treasury
Regulations, Internal Revenue Service ("IRS") rulings and judicial decisions now
in effect, all of which are subject to change (possibly with retroactive effect)
or different interpretations. This discussion does not purport to deal with  all
aspects  of  federal  income  taxation  that may  be  relevant  to  a particular
investor's decision to purchase the Notes, and  it is not intended to be  wholly
applicable  to all categories  of investors, some  of which, such  as dealers in
securities, banks, insurance companies, tax-exempt organizations and  non-United
States persons, may be subject to special rules. In addition, this discussion is
limited to persons that purchase the Notes in the offering and hold the Notes as
a "capital asset" within the meaning of Section 1221 of the Code.

    ALL PROSPECTIVE PURCHASERS OF THE NOTES ARE ADVISED TO CONSULT THEIR OWN TAX
ADVISORS REGARDING THE FEDERAL, STATE, LOCAL AND FOREIGN TAX CONSEQUENCES OF THE
PURCHASE, OWNERSHIP AND DISPOSITION OF THE NOTES AND THE COMMON STOCK.

CONVERSION OF NOTES INTO COMMON STOCK

    In  general, no gain or loss will be recognized for income tax purposes on a
conversion of the Notes into shares of Common Stock. However, cash paid in  lieu
of  a fractional share  of Common Stock  will likely result  in taxable gain (or
loss), which will be  capital gain (or  loss) to the extent  that the amount  of
such  cash exceeds (or is exceeded by) the  portion of the adjusted basis of the
Note allocable to such fractional share. The adjusted basis of shares of  Common
Stock  received  on  conversion  will  equal  the  adjusted  basis  of  the Note
converted, reduced by the portion of adjusted basis allocated to any  fractional
share  of Common Stock exchanged for cash.  The holding period of an investor in
the Common Stock received on conversion will include the period during which the
converted Notes were held.

    The conversion price  of the Notes  is subject to  adjustment under  certain
circumstances. See "Description of Notes -- Conversion." Section 305 of the Code
and  the Treasury  Regulations issued  thereunder may  treat the  holders of the
Notes as  having received  a constructive  distribution, resulting  in  ordinary
income  (subject  to a  possible  dividends received  deduction  in the  case of
corporate holders) to the extent of  the Company's current earnings and  profits
as of the end of the taxable year to which the constructive distribution relates
and/or  accumulated  earnings and  profits, if  and to  the extent  that certain
adjustments in  the conversion  price that  may occur  in limited  circumstances
(particularly  an adjustment to reflect a  taxable dividend to holders of Common
Stock) increase the  proportionate interest of  a holder of  Notes in the  fully
diluted  Common Stock, whether or not  such holder ever exercises its conversion
privilege. Moreover, if there is not  a full adjustment to the conversion  price
of  the  Notes  to  reflect  a stock  dividend  or  other  event  increasing the
proportionate interest of the holders of outstanding Common Stock in the  assets
or  earnings and profits of the Company, then such increase in the proportionate
interest of the  holders of  the Common  Stock generally  will be  treated as  a
distribution  to such holders, taxable as ordinary income (subject to a possible
dividends received deduction in the case of corporate holders) to the extent  of
the  Company's current earnings and profits as of the end of the taxable year to
which the  constructive distribution  relates  and/or accumulated  earnings  and
profits.

MARKET DISCOUNT

    Investors  acquiring Notes pursuant to this  Prospectus should note that the
resale of  those  Notes  may  be  adversely  affected  by  the  market  discount
provisions  of sections 1276 through 1278 of the Code. Under the market discount
rules, if a holder of a Note purchases  it at market discount (i.e., at a  price
below   its   stated   redemption   price   at   maturity)   in   excess   of  a
statutorily-defined DE  MINIMIS amount  and thereafter  recognizes gain  upon  a
disposition or retirement of the Note, then the lesser of the gain recognized or
the  portion of  the market  discount that  accrued on  a ratable  basis (or, if
elected, on  a  constant interest  rate  basis)  generally will  be  treated  as
ordinary income at the time of the disposition. Moreover, any market discount on
a  Note may be taxable to an investor  to the extent of appreciation at the time
of certain otherwise non-taxable transactions (e.g., gifts). Any accrued  market
discount not

                                       32
<PAGE>
previously  taken into income prior  to a conversion of  a Note, however, should
(under Treasury  Regulations not  yet issued)  carry over  to the  Common  Stock
received  on  conversion and  be treated  as ordinary  income upon  a subsequent
disposition of such Common Stock  to the extent of  any gain recognized on  such
disposition.  In  addition, absent  an election  to  include market  discount in
income as it  accrues, a  holder of  a market  discount debt  instrument may  be
required  to  defer a  portion of  any  interest expense  that otherwise  may be
deductible on any indebtedness incurred or maintained to purchase or carry  such
debt  instrument until the holder  disposes of the debt  instrument in a taxable
transaction.

SALE, EXCHANGE OR RETIREMENT OF NOTES

    Each holder of Notes  generally will recognize gain  or loss upon the  sale,
exchange, redemption, repurchase, retirement or other disposition of those Notes
measured  by the difference (if any) between (i) the amount of cash and the fair
market value of any property  received (except to the  extent that such cash  or
other property is attributable to the payment of accrued interest not previously
included  in income, which amount  will be taxable as  ordinary income) and (ii)
the holder's adjusted tax  basis in those Notes  (including any market  discount
previously  included in income by the holder).  Each holder of Common Stock into
which the Notes are converted, in general, will recognize gain or loss upon  the
sale,  exchange, redemption, or  other disposition of  the Common Stock measured
under rules similar to those described in the preceding sentence for the  Notes.
Special  rules may  apply to  redemptions of  Common Stock  which may  result in
different treatment. Any  such gain or  loss recognized on  the sale,  exchange,
redemption,  repurchase, retirement or  other disposition of a  Note or share of
Common Stock  should be  capital gain  or loss  (except as  discussed under  "--
Market Discount" above), and would be long-term capital gain or loss if the Note
or the Common Stock had been held for more than one year at the time of the sale
or  exchange. An investor's initial basis in a  Note will be the cash price paid
therefor.

BACKUP WITHHOLDING

    A holder of Notes or Common Stock may be subject to "back-up withholding" at
a rate of 31% with respect to certain "reportable payments," including  interest
payments, dividend payments and, under certain circumstances, principal payments
on  the Notes. These back-up withholding rules  apply if the holder, among other
things, (i)  fails  to  furnish  a social  security  number  or  other  taxpayer
identification  number  ("TIN") certified  under penalties  of perjury  within a
reasonable time after  the request  therefor, (ii) furnishes  an incorrect  TIN,
(iii)  fails to  report properly  interest or  dividends, or  (iv) under certain
circumstances, fails to provide a certified statement, signed under penalties of
perjury, that the TIN furnished  is the correct number  and that such holder  is
not  subject to back-up withholding.  A holder who does  not provide the Company
with its correct TIN also  may be subject to penalties  imposed by the IRS.  Any
amount  withheld from a payment to a  holder under the back-up withholding rules
is creditable against the  holder's federal income  tax liability, provided  the
required  information  is furnished  to the  IRS.  Back-up withholding  will not
apply, however,  with respect  to payments  made to  certain holders,  including
corporations,  tax-exempt  organizations and  certain foreign  persons, provided
their exemption from back-up withholding is properly established.

    The Company will report to the holders of Notes and Common Stock and to  the
IRS  the amount  of any  "reportable payments"  for each  calendar year  and the
amount of tax withheld, if any, with respect to such payments.

                                       33
<PAGE>
                                  UNDERWRITING

    Subject to the terms and conditions set forth in the Underwriting  Agreement
(the  "Underwriting  Agreement") among  the  Company and  the  Underwriters, the
Company has agreed to sell to the Underwriters, and the Underwriters have agreed
to purchase, the principal amount of the Notes set forth below:

<TABLE>
<CAPTION>
                                                                             PRINCIPAL AMOUNT
                                UNDERWRITER                                      OF NOTES
- ---------------------------------------------------------------------------  -----------------
<S>                                                                          <C>
Salomon Brothers Inc.......................................................
Donaldson, Lufkin & Jenrette Securities Corporation........................
Merrill Lynch, Pierce Fenner & Smith
          Incorporated.....................................................
Montgomery Securities......................................................
                                                                             -----------------
    Total..................................................................   $   150,000,000
                                                                             -----------------
                                                                             -----------------
</TABLE>

    In the Underwriting Agreement, the Underwriters have agreed, subject to  the
terms and conditions set forth therein, that the obligations of the Underwriters
are  subject to certain  conditions precedent and that  the Underwriters will be
obligated to purchase the entire principal amount of the Notes offered hereby if
any Notes are purchased.

    The Company has been advised by the Underwriters that they propose to  offer
the  Notes directly to the public at the initial public offering price set forth
on the cover  of this Prospectus  and to certain  dealers at such  price less  a
concession  of not  more than     %  of the  principal amount of  the Notes. The
Underwriters may allow, and such dealers may reallow, a concession not in excess
of    % of the principal amount of the Notes. After the initial public  offering
of the Notes, the public offering price and such concessions may be changed.

    The  Underwriting  Agreement provides  that the  Company will  indemnify the
Underwriters against certain civil liabilities, including liabilities under  the
Securities  Act or contribute to payments  that the Underwriters may be required
to make in respect thereof.

    The Underwriters will reimburse the Company for certain expenses relating to
the offering.

    Except for certain exceptions pertaining to certain employee benefit  plans,
outstanding  options  and  warrants  to  purchase  Common  Stock  and securities
convertible into Common Stock, the Company has agreed that it will not,  without
the prior written consent of Salomon Brothers Inc, for a period of 90 days after
the   date  on  which  the  Underwriting  Agreement  is  executed,  directly  or
indirectly, offer to sell, sell, grant any  option for the sale of or  otherwise
dispose  of any  shares of  Common Stock or  any securities  convertible into or
exchangeable or exercisable  for any  shares of Common  Stock, or  any right  or
option  to acquire any  such shares or  securities. Sales by  the Company to the
Underwriters are exempt from such restriction.

    In connection  with the  offering, certain  Underwriters and  selling  group
members  who are  qualifying registered  market makers  on Nasdaq  may engage in
passive market making transactions in the  Common Stock on Nasdaq in  accordance
with  Rule 10b-6A  under the  Exchange Act  during the  two business  day period
before commencement of  offers or sales  of the Notes  in the offering.  Passive
market making transactions must comply with certain volume and price limitations
and  be identified as such.  In general, a passive  market maker may display its
bid at a price not  in excess of the highest  independent bid for the  security,
and  if all independent bids  are lowered below the  passive market maker's bid,
then such bid must be lowered when cetain purchase limits are exceeded.

    The Company intends to apply for approval for the Notes to be quoted on  the
Nasdaq  Stock Market. However, no assurance can be given that any market for the
Notes will  develop. See  "Risk Factors  --  Absence of  Public Market  for  the
Notes."

                                       34
<PAGE>
                                 LEGAL MATTERS

    The  validity of  the Notes  and the  shares of  Common Stock  issuable upon
conversion thereof  will be  passed upon  for the  Company by  Wilson,  Sonsini,
Goodrich  & Rosati, Professional Corporation, Palo Alto, California, and for the
Underwriters by Latham & Watkins, San Francisco, California.

                                    EXPERTS

    The consolidated financial statements and schedule of VLSI Technology,  Inc.
appearing in the Company's Annual Report (Form 10-K) for the year ended December
30,  1994, have been audited by Ernst  & Young LLP, independent auditors, as set
forth in  their  report thereon  included  therein and  incorporated  herein  by
reference.  Such  consolidated  financial  statements  and  schedule  have  been
incorporated herein by  reference in reliance  upon such report  given upon  the
authority of such firm as experts in accounting and auditing.

                                       35
<PAGE>
NO  DEALER,  SALESPERSON  OR  OTHER  PERSON  HAS  BEEN  AUTHORIZED  TO  GIVE ANY
INFORMATION OR TO MAKE ANY REPRESENTATION IN CONNECTION WITH THIS OFFERING OTHER
THAN THOSE CONTAINED IN OR INCORPORATED BY REFERENCE IN THIS PROSPECTUS AND,  IF
GIVEN  OR MADE, SUCH  INFORMATION OR REPRESENTATION  MUST NOT BE  RELIED UPON AS
HAVING BEEN  AUTHORIZED  BY  THE  COMPANY  OR  ANY  OF  THE  UNDERWRITERS.  THIS
PROSPECTUS DOES NOT CONSTITUTE AN OFFER TO SELL OR A SOLICITATION OF AN OFFER TO
BUY ANY OF THESE SECURITIES OFFERED IN ANY JURISDICTION TO ANY PERSON TO WHOM IT
IS  UNLAWFUL TO MAKE SUCH AN OFFER OR SOLICITATION IN SUCH JURISDICTION. NEITHER
THE DELIVERY OF  THIS PROSPECTUS NOR  ANY SALE MADE  HEREUNDER SHALL, UNDER  ANY
CIRCUMSTANCES,  CREATE ANY IMPLICATION THAT THE INFORMATION HEREIN IS CORRECT AS
OF ANY TIME SUBSEQUENT TO  THE DATE HEREOF OR THAT  THERE HAS BEEN NO CHANGE  IN
THE AFFAIRS OF THE COMPANY SINCE SUCH DATE.

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

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                       PAGE
                                                       -----
<S>                                                 <C>
Available Information.............................           2
Information Incorporated by Reference.............           2
Prospectus Summary................................           3
Risk Factors......................................           7
Use of Proceeds...................................          12
Price Range of Common Stock and Dividend Policy...          12
Capitalization....................................          13
Selected Consolidated Financial Data..............          14
Business..........................................          16
Description of Notes..............................          20
Certain Federal Income Tax Considerations.........          32
Underwriting......................................          34
Legal Matters.....................................          35
Experts...........................................          35
</TABLE>

$150,000,000
   [LOGO]

   % CONVERTIBLE
SUBORDINATED NOTES
DUE 2005

SALOMON BROTHERS INC

DONALDSON, LUFKIN & JENRETTE
      SECURITIES CORPORATION

MERRILL LYNCH & CO.

MONTGOMERY SECURITIES

PROSPECTUS

DATED              , 1995


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