PMC SIERRA INC
8-K, 1998-06-03
SEMICONDUCTORS & RELATED DEVICES
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                 ----------------------------------------------

                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D. C. 20549
                                   Form 8 - K

                                 CURRENT REPORT

                       Pursuant to Section 13 or 15(d) of
                       the Securities Exchange Act of 1934



                Date of Report (Date of earliest event reported)
                                  May 20, 1998


                                PMC-Sierra, Inc.
             (Exact name of registrant as specified in its charter)


      Delaware                    0-19084                   94-2925073
- ----------------------   ----------------------  -------------------------------
State of incorporation   Commission File Number  IRS Employer Identification No.

                              105-8555 BAXTER PLACE
                   BURNABY, BRITISH COLUMBIA, V5A 4V7, CANADA
                    (address of principal executive offices)

         Company's telephone number, including area code: (604) 415-6000











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

<PAGE>

                                                             
Item 2. Acquisition or Disposition of Assets.

         On May 20, 1998,  Registrant  acquired  Integrated Telecom  Technology,
         Inc., a Maryland  corporation,  ("IGT") through a merger (the "Merger")
         of  IGT  with  and  into  PMC-Sierra   (Maryland),   Inc.,  a  Delaware
         corporation  and  a  wholly-owned   subsidiary  of  Registrant  ("Sub")
         pursuant to an  Agreement  and Plan of  Reorganization  dated April 15,
         1998  (the  "Agreement")  among  IGT,   Registrant,   Sub  and  Samsung
         Electronics  Co.,  Ltd.  Following  the  Merger,  all of the rights and
         obligations of IGT have been assigned to Sub.

         IGT is a fabless  semiconductor  company headquartered in Gaithersburg,
         MD with a  development  site in San Jose,  CA.  IGT makes  Asynchronous
         Transfer   Mode  (ATM)   switching   chipsets  for  wide  area  network
         applications  as  well  as ATM  Segmentation-and-Reassembly  and  other
         telecommunication chips.

         The purchase price of  $55,000,000  was paid in  approximately  half in
         cash and half in Registrant's stock and options (the "Purchase Price").
         The cash payment includes payments to IGT's creditors. The cash payment
         was funded using the Registrant's  general working capital.  Registrant
         issued to IGT's  stockholders  approximately  414,000  shares of Common
         Stock and options to purchase  approximately  214,000  shares of Common
         Stock.

         Of the Purchase  Price,  $3.9 million is being held in escrow to secure
         certain indemnity obligations of IGT under the Agreement.

         The  Purchase  Price was agreed upon in arm's length  negotiations  and
         took into account various factors concerning the relative valuations of
         Registrant and IGT.  Registrant  received an opinion from its financial
         advisor that the merger was fair to Registrant  from a financial  point
         of view.

         The Merger  will be  accounted  for as a  purchase  by  Registrant.  In
         connection with the acquisition of IGT,  Registrant expects to record a
         one-time  charge to  earnings  during the  current  quarter  due to the
         acquisition   of   technology   that  has  not  reached   technological
         feasibility  and that has no alternative  future use. The amount of the
         one-time  charge  for  in-process  research  and  development  is being
         determined  and will be charged to  expense  by the  Registrant  in its
         second  quarter of fiscal 1998.  The Merger is intended to constitute a
         tax-free  reorganization  under Section 368(a) of the Internal  Revenue
         Code.

         The provisions of the Agreement  described in this report are qualified
         in their  entirety by  reference  to the actual text of the  Agreement,
         included as an exhibit to this report.


Item 7. Financial Statements and Exhibits.

(a)      Financial statements of business acquired

         The  following  financial  statements  of  the  business  acquired  are
         included in this current report.

         -   Audited balance sheets as of December 31, 1996 and 1997

         -   Audited  statements of operations,  stockholders'  deficit and cash
             flows for the years ended December 31, 1996 and 1997

         It is impractical to provide the required financial information for the
         period  ended March 31, 1998 at the time of the filing of this  report.
         This  information  will be filed by  amendment  to this  Form 8-K filed
         within 60 days after the date on which this  report is  required  to be
         filed.


<PAGE>

                       INTEGRATED TELECOM TECHNOLOGY, INC.
                                    --------

                              FINANCIAL STATEMENTS
                 for the years ended December 31, 1996 and 1997
                                       AND
                                 REPORT THEREON
                                    --------


<PAGE>



                        Report of Independent Accountants
                        ---------------------------------




To the Stockholders and Board of Directors
Integrated Telecom Technology, Inc.

         We have audited the accompanying  balance sheets of Integrated  Telecom
Technology, Inc. (the Company) as of December 31, 1996 and 1997, and the related
statements  of  operations,  stockholders'  deficit and cash flows for the years
then ended.  These financial  statements are the responsibility of the Company's
management.  Our  responsibility  is to express  an  opinion on these  financial
statements based on our audits.

         We conducted our audits in accordance with generally  accepted auditing
standards.  Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement.  An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements.  An audit also includes
assessing the  accounting  principles  used and  significant  estimates  made by
management,  as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

         As  described  in Note 14, the  Company  has been  notified  by Samsung
Electronics  Co., Ltd.  that it would provide or assist in obtaining  sufficient
additional funding to enable the Company to continue in operation for the coming
year.

         In our opinion,  the  financial  statements  referred to above  present
fairly, in all material  respects,  the financial position of Integrated Telecom
Technology,  Inc.  as of  December  31,  1996 and 1997,  and the  results of its
operations  and its cash  flows  for the years  then  ended in  conformity  with
generally accepted accounting principles.


                                        /s/ Coopers & Lybrand L.L.P.

Washington, D.C.
February 20, 1998
except for Note 15
as to which the date
is April 15, 1998
<PAGE>
<TABLE>

                      INTEGRATED TELECOM TECHNOLOGY, INC.
                                 BALANCE SHEETS
                           December 31, 1996 and 1997
                                    --------
<CAPTION>

                                     ASSETS
                                                                                     1996             1997       
                                                                                --------------   --------------  
<S>                                                                               <C>              <C>           
Current assets:                                                                                                  
   Cash and cash equivalents                                                      $   803,592      $   916,545   
   Accounts receivable, net of allowance for doubtful accounts of $6,000 and                                     
     $15,353 in 1996 and 1997, respectively                                         1,588,878        2,733,932   
   Inventories, net of allowance of $50,000 in                                                                   
     1996 and 1997, respectively                                                      580,834          303,949   
   Prepaid expenses                                                                    68,307          184,742   
   Other current assets                                                                20,636           29,835   
                                                                                --------------   --------------  
   Total current assets                                                             3,062,247        4,169,003   
                                                                                                                 
Property and equipment, net                                                         1,843,688        2,309,349   
Patents and license                                                                   365,119          463,106   
Other assets                                                                          235,325          181,849   
                                                                                --------------   --------------  
   Total assets                                                                   $ 5,506,379      $ 7,123,307   
                                                                                                                 
                                                                                                                 
                      LIABILITIES AND STOCKHOLDERS' DEFICIT                                   
Current liabilities:                                                                                             
   Lines of credit                                                                $ 2,650,000      $ 7,650,000   
   Current maturities of obligations under capital leases                             407,452          784,913   
   Accounts payable                                                                   651,118          679,075   
   Accrued salaries and benefits                                                      229,004          265,504   
   Commissions payable                                                                198,762          291,511   
   Accrued expenses                                                                   219,537          378,770   
   Accrued vacation                                                                   142,017          181,423   
   Severance payable                                                                  350,000                -   
   Billings in excess of costs and earnings on contracts-in-progress                1,085,001           25,001   
                                                                                --------------   --------------  
   Total current liabilities                                                        5,932,891       10,256,197   
                                                                                                                 
Unearned income                                                                             -          119,544   
Obligations under capital leases                                                      287,193          841,713   
                                                                                --------------   --------------  
   Total liabilities                                                                6,220,084      11,217,454    
                                                                                --------------   --------------  
                                                                                                                 
Series B mandatorily redeemable convertible preferred stock, $1 par value
   per share.  Authorized, issued and outstanding 1,000,000 shares at
   December 31, 1996 and 1997, respectively (liquidation value; $2,350,000)         2,272,834        2,292,126   
Series C mandatorily redeemable convertible preferred stock, $1 par value
   per share.  Authorized, issued and outstanding 1,254,717 shares at
   December 31, 1996 and 1997, respectively (liquidation value; $6,650,000)         6,629,558        6,633,646   
                                                                                --------------   --------------  
   Total preferred stock                                                            8,902,392        8,925,772   
                                                                                --------------   --------------  
                                                                                                                 
                                                                                                                 
Commitments and contingencies                                                                                    
                                                                                                                 
Stockholders' deficit:                                                                                           
   Series A convertible preferred stock, $1 par value per share.  Authorized                                     
      1,265,953 shares; issued and outstanding 1,042,549 shares at December 31,                                  
      1996 and 1997, respectively (liquidation value; $2,449,990)                   1,042,549        1,042,549   
   Common stock, $.01 par value per share.  Authorized 7,507,632 shares,                                         
   issued and outstanding 380,418 and 387,918 shares at December 31, 1996 and                                    
   1997, respectively                                                                   3,804            3,879   
   Additional paid-in capital                                                       1,360,968        1,341,263   
   Accumulated deficit                                                            (12,023,418)     (15,407,610)  
                                                                                --------------   --------------  
   Total stockholders' deficit                                                     (9,616,097)     (13,019,919)  
                                                                                --------------   --------------  
   Total liabilities and stockholders' deficit                                    $ 5,506,379      $ 7,123,307   
                                                                                ==============   ==============  
                                                                                
The accompanying notes are an integral part of these financial statements
</TABLE>
<PAGE>

                      INTEGRATED TELECOM TECHNOLOGY, INC.
                            STATEMENTS OF OPERATIONS
                 for the years ended December 31, 1996 and 1997
                                    --------






                                              1996              1997        
                                         ---------------   ---------------  
                                                                            
Net sales                                  $  6,669,362      $ 12,603,003   
Cost of sales                                 4,702,327         4,634,400   
                                         ---------------   ---------------  
           Gross profit                       1,967,035         7,968,603   
                                         ---------------   ---------------  
                                                                            
Operating expenses:                                                         
   Research and development costs             4,739,240         7,377,582   
   Selling, marketing, general and                                          
        administrative expenses               3,000,787         3,566,713   
                                         ---------------   ---------------  
                                              7,740,027        10,944,295   
                                         ---------------   ---------------  
           Operating loss                    (5,772,992)       (2,975,692)  
                                                                            
Other income (expense):                                                     
   Interest expense, net                       (269,971)         (417,969)  
   Other income                                   1,436             9,469   
                                         ---------------   ---------------  
           Total other expenses                (268,535)         (408,500)  
                                         ---------------   ---------------  
                                                                            
           Net loss                        $ (6,041,527)     $ (3,384,192)  
                                         ===============   ===============  
                                         
The accompanying notes are an integral part of these financial statements


<PAGE>
<TABLE>

                      INTEGRATED TELECOM TECHNOLOGY, INC.
                       STATEMENTS OF STOCKHOLDERS' DEFICIT
                 for the years ended December 31, 1996 and 1997
                                    ---------


<CAPTION>

                                          Series A Preferred Stock      Common Stock
                                          ------------------------  ---------------------  Additional                      Total
                                                          Par                     Par      paid-in      Accumulated    stockholders'
                                            Shares       value        Shares     value     capital        deficit         deficit
                                          ----------- ------------  ---------- --------  ------------  -------------  -------------

<S>              <C>                      <C>         <C>             <C>      <C>       <C>           <C>            <C>          
Balance, January 1, 1996                  1 ,042,549  $ 1,042,549     380,418  $  3,804  $ 1,384,348   $ (5,981,891)  $ (3,551,190)
   Accretion of Series B preferred stock           -            -           -         -      (19,292)             -        (19,292)
   Accretion of Series C preferred stock           -            -           -         -       (4,088)             -         (4,088)
   Net loss                                        -            -           -         -            -     (6,041,527)    (6,041,527)
                                          ----------- ------------  ---------- --------  ------------  -------------  -------------
Balance, December 31, 1996                 1,042,549    1,042,549     380,418     3,804    1,360,968    (12,023,418)    (9,616,097)
   Exercise of stock options                       -            -       7,500        75        3,675              -          3,750
   Accretion of Series B preferred stock           -            -           -         -      (19,292)             -        (19,292)
   Accretion of Series C preferred stock           -            -           -         -       (4,088)             -         (4,088)
   Net loss                                        -            -           -         -            -     (3,384,192)    (3,384,192)
                                          ----------- ------------  ---------- --------  ------------  -------------  -------------

Balance, December 31, 1997                 1,042,549  $ 1,042,549     387,918  $  3,879  $ 1,341,263   $(15,407,610)  $(13,019,919)
                                          ==========  ============  ========== ========  ============  =============  =============


The accompanying notes are an integral part of these financial statements
</TABLE>


<PAGE>
<TABLE>

                      INTEGRATED TELECOM TECHNOLOGY, INC.
                            STATEMENTS OF CASH FLOWS
                 for the years ended December 31, 1996 and 1997
                                    --------
<CAPTION>
                                                                                     1996           1997      
                                                                                --------------  --------------
<S>                                                                              <C>             <C>          
Cash flows from operating activities:                                                                         
   Net loss                                                                      $ (6,041,527)   $ (3,384,192)
   Adjustments to reconcile net loss to net cash used in operating activities:                                
      Depreciation and amortization                                                   880,264       1,324,155 
      Recognition of unearned income from sale/leaseback transactions                       -          (5,674)
      Changes in assets and liabilities:                                                                      
         Accounts receivable                                                         (335,623)     (1,145,054)
         Inventories                                                                 (189,667)        276,885 
         Other current assets                                                           3,928        (125,634)
         Other assets                                                                (116,543)         79,464 
         Accounts payable                                                            (232,343)        140,661 
         Accrued expenses                                                             313,825         (22,112)
         Billings in excess of costs and earnings on contracts-in-progress           (231,749)     (1,060,000)
                                                                                --------------  --------------
         Net cash used in operating activities                                     (5,949,435)     (3,921,501)
                                                                                --------------  --------------
                                                                                                
Cash flows from investing activities:                                                                          
   Purchases of property and equipment                                               (657,827)     (1,212,699)
   Payments to acquire patents and license                                           (105,086)       (161,549)
                                                                                --------------  --------------
         Net cash used in investing activities                                       (762,913)     (1,374,248)
                                                                                --------------  --------------
                                                                                                              
Cash flows from financing activities:                                                                         
   Proceeds from sale/leaseback transactions                                                -         840,876 
   Proceeds from line of credit                                                     3,700,000       5,000,000 
   Payments on line of credit                                                      (3,700,000)              - 
   Repayment of notes payable                                                        (255,825)              - 
   Proceeds from issuance of preferred stock                                        6,650,000               - 
   Expenditures associated with issuance of preferred stock                           (24,530)              - 
   Proceeds from exercise of stock options                                                  -           3,750 
   Payments under capital lease obligations                                          (430,673)       (435,924)
                                                                                --------------  --------------
         Net cash provided by financing activities                                  5,938,972       5,408,702 
                                                                                --------------  --------------
                                                                                                              
Net increase (decrease) in cash and cash equivalents                                 (773,376)        112,953 
                                                                                                              
Cash and cash equivalents at beginning of year                                      1,576,968         803,592 
                                                                                --------------  --------------
                                                                                                              
Cash and cash equivalents at end of year                                         $    803,592    $    916,545 
                                                                                ==============  ==============
                                                                                                              
Supplemental disclosure of cash flow information:                                                             
   Cash paid for interest                                                        $    297,284    $    359,586 
                                                                                ==============  ==============
                                                                                                              
Supplemental disclosure of noncash investing and financing activities:                                        
   Equipment acquired under capital leases                                       $    557,543    $    394,779 
                                                                                ==============  ==============
   Reduction of accounts payable in connection with the sale/leaseback                                        
      transactions                                                               $          -    $    138,691 
                                                                                ==============  ==============
   Accretion of Series B preferred stock                                         $     19,292    $     19,292 
                                                                                ==============  ==============
   Accretion of Series C preferred stock                                         $      4,088    $      4,088 
                                                                                ==============  ==============
                                                                                              

The accompanying notes are an integral part of these financial statements

</TABLE>
<PAGE>

                      INTEGRATED TELECOM TECHNOLOGY, INC.
                         NOTES TO FINANCIAL STATEMENTS


1.    Business

         Integrated Telecom  Technology,  Inc. (the Company) was incorporated on
June 13, 1991, to develop, manufacture,  market and sell integrated circuits and
test system products.


2.    Summary of significant accounting policies

         Revenue recognition
         -------------------

               Revenue under  long-term  fixed-fee  contracts is recognized
         using the percentage-of-completion  method based on costs incurred
         in  relation  to total  estimated  costs.  Billings  in  excess of
         estimated costs and earnings on contracts-in-progress are deferred
         until  earned  and  recorded  as  billings  in excess of costs and
         earnings on contracts in progress. Anticipated contract losses are
         recognized in the period they become known and estimable.  Revenue
         from the sale of integrated  circuits and test system  products is
         generally recognized upon shipment.

         Cash equivalents
         ----------------

               All highly liquid  instruments  with original  maturities of
         three months or less are considered to be cash  equivalents.  Cash
         equivalents  of $80,654 and $83,199 at December 31, 1996 and 1997,
         respectively,  consist of funds held in  interest-bearing  deposit
         accounts.  The Company  invests  its cash  balances in a financial
         institution  and  performs  periodic  evaluations  of  its  credit
         standing.

         Concentration of credit risk
         ----------------------------

               Financial  instruments which potentially subject the Company
         to a concentration of credit risk principally  consist of cash and
         cash   equivalents   and  accounts   receivable.   Cash  and  cash
         equivalents include deposits which are maintained in one financial
         institution.  The total deposits,  at this  institution,  at times
         exceed the amount  guaranteed by federal  agencies and  therefore,
         bear some risk since they are not collateralized.  Generally,  the
         Company does not require  collateral  from its  customers.  During
         1996 and  1997,  the  Company  earned  approximately  56% and 30%,
         respectively,  of its net sales from Samsung Electronics Co., Ltd.
         (SEC).   As  of  December   31,  1996  and  1997,   58%  and  35%,
         respectively,  of the Company's accounts  receivable were due from
         SEC.
<PAGE>

         Inventories
         -----------

               Inventories are stated at the lower of cost or market.  Cost
         is determined using the average-cost method.

         Property and equipment
         ----------------------

               Property  and  equipment  are stated at cost.  Property  and
         equipment  under capital leases are recorded at the lower of their
         fair value or the present value of future  minimum lease  payments
         determined at the inception of the lease.

               Depreciation is computed using the straight-line method over
         the following estimated useful lives:

                 Computer and lab equipment                 3 years
                 Office Equipment                         3-5 years
                 Furniture and office equipment             7 years
                 Leasehold improvements                   lesser of
                                                     useful life or
                                                         lease term


               Property and equipment  recorded  under  capital  leases are
         amortized on a straight-line basis over the lease term.

               When  property and  equipment  are retired or disposed,  the
         related  cost and  accumulated  depreciation  are removed from the
         accounts  and  any   resulting   gain  or  loss  is  reflected  in
         operations.

<PAGE>

          Stock-based compensation
          ------------------------

               In October 1996, the Financial  Accounting  Standards  Board
         (FASB)  issued the  Statement  of Financial  Accounting  Standards
         (SFAS) No. 123, Accounting for Stock-Based Compensation,  which is
         effective for fiscal years beginning after December 31, 1995. SFAS
         No. 123 allows  companies  to either  account for the  stock-based
         compensation under the new provisions of SFAS No. 123 or under the
         provisions  of Accounting  Principles  Board (APB) Opinion No. 25,
         Accounting  for Stock Issued to Employees,  but requires pro forma
         disclosure in the footnotes to the financial  statements as if the
         measurement  provisions  of SFAS  No.  123 had been  adopted.  The
         Company has continued to account for its stock based  compensation
         in accordance with the provisions of APB No. 25.

          Patents and license
          -------------------

                The  cost of  patents  acquired  amounted  to  approximately
          $386,000   and   $447,000  as  of  December  31,  1996  and  1997,
          respectively.  Upon  approval,  the  patents  are  amortized  on a
          straight line basis over their estimated remaining economic lives,
          which is less than the statutory life of each patent. Amortization
          expense  was  approximately  $20,000 and $60,300 in 1996 and 1997,
          respectively.

                During 1997 the Company  purchased from Bell  Communications
          Research, Inc. (BellCore) a license for the right to use specified
          patented  technology for an indefinite  period. The license fee of
          $100,000  is being  amortized  on a  straight  line  basis over 10
          years.  Amortization  expense was approximately $3,300 in 1997. In
          addition,  the  Company is  required  to pay a royalty of not more
          than 1% of the selling price of certain royalty  bearing  products
          that are sold or a reasonably determined price of all such royalty
          bearing  products  leased.  No  royalties  were  earned or paid to
          BellCore  during  1997.  Semiconductive  devices  are not  royalty
          bearing products.

<PAGE>


                  The Company  assesses the value of the patents and license
          on a regular  basis based upon  estimates of future  profitability
          and cash flows.  If the value of the  patents or license  declines
          below its carrying value, and the decline is permanent, the patent
          or license will be written down as a charge against earnings.

          Income taxes
          ------------

                Deferred tax assets and  liabilities  are recognized for the
          future tax  consequences  attributable to differences  between the
          financial  statement  carrying  amounts  of  existing  assets  and
          liabilities and their  respective tax bases and operating loss and
          tax credit carryforwards.  Deferred tax assets and liabilities are
          measured  using  enacted  tax rates  expected  to apply to taxable
          income  in the  years in which  those  temporary  differences  are
          expected to be  recovered  or settled.  Valuation  allowances  are
          established  when  necessary to reduce  deferred tax assets to the
          amounts expected to be realized. The effect on deferred tax assets
          and  liabilities  of a change in tax rates is recognized in income
          in the period that includes the enactment date.

          Use of estimates
          ----------------

                The  preparation of financial  statements in conformity with
          generally accepted  accounting  principles  requires management to
          make estimates and assumptions that affect the reported amounts of
          assets and  liabilities  and  disclosure of contingent  assets and
          liabilities  at the  date  of the  financial  statements  and  the
          reported  amounts of revenues  and expenses  during the  reporting
          period. Actual results could differ from those estimates.

<PAGE>

          Long-lived assets
          -----------------

                Management of the Company periodically monitors the carrying
          value  of  long-lived   assets  for  potential   impairment.   The
          impairment  amount would be  determined  by comparing the carrying
          value of these assets with their related, expected future net cash
          flows.  Should  the sum of the  expected  future net cash flows be
          less than the carrying value,  management would determine  whether
          an impairment loss should be recognized.  An impairment loss would
          be  measured  by the amount by which the  carrying  value of these
          assets  exceeds the future  discounted  cash flows.  For the years
          ended December 31, 1996 and 1997, there were no adjustments to the
          carrying values of long-lived assets.

          Reclassifications
          -----------------

                Certain  amounts in the 1996 financial  statements have been
          reclassified to conform with the 1997 presentation.

          Fair value of financial instruments
          -----------------------------------

                The carrying  amounts of the  Company's  current  assets and
          current  liabilities  approximate  fair  value due to  either  the
          short-term  maturity  of  those  financial  instruments  or  their
          negotiated terms.

          Recent accounting pronouncements
          --------------------------------

               In June  1997,  the  FASB  issued  SFAS No.  130,  Reporting
         Comprehensive  Income and SFAS No. 131, Disclosures About Segments
         of an Enterprise  and Related  Information.  Both SFAS No. 130 and
         SFAS No. 131 are required to be adopted for fiscal years beginning
         after  December 15, 1997.  Upon the effective  date of each of the
         new  statements,  the Company will make the  necessary  changes to
         comply with the provisions of each statement and restate all prior
         periods  presented.  The Company  does not expect the  adoption of
         these  statements  to  have a  material  impact  on the  Company's
         financial condition or results of operations.

<PAGE>

3.    Accounts receivable

         Included  in  accounts   receivable  are  certain   unbilled   accounts
receivable  representing  recoverable  costs and accrued  profits  which will be
billed in accordance with contract terms. Total unbilled accounts  receivable at
December 31, 1996 and 1997 was $400,000 and $473,290,  respectively.  Management
anticipates that all unbilled receivables as of December 31, 1997 will be billed
and collected in 1998.


4.    Inventories

         Inventories consist of the following at December 31:

                                           1996              1997       
                                       -------------     ------------   
                                                                      
                 Raw materials         $     60,594      $     2,000    
                 Finished goods             570,240          351,949    
                                       -------------     ------------   
                                            630,834          353,949    
                 Less allowance              50,000           50,000    
                                       -------------     ------------   
                 Total                 $    580,834      $   303,949    
                                       -------------     ------------   
                                         


5.    Property and equipment

         Property and equipment consists of the following at December 31:

                                                   1996              1997     
                                              --------------    --------------
                                                                              
         Computer and lab equipment           $   2,930,967     $   4,342,363 
         Furniture and office equipment             188,280           323,990 
         Leasehold improvements                      13,463            44,443 
                                              --------------    --------------
                                                  3,132,710         4,710,796 
         Less accumulated depreciation            1,289,022         2,401,447 
                                              --------------    --------------
         Property and equipment, net          $   1,843,688     $   2,309,349 
                                              --------------    --------------
                                                             
<PAGE>

         The Company has entered into capital leases for equipment. The cost and
accumulated  depreciation  of assets under capital  leases were as follows as of
December 31:


                                                   1996               1997     
                                              --------------    -------------- 
                                                                               
          Computer and lab equipment          $   1,272,036     $   2,639,941  
          Office equipment                           83,192            83,192  
                                              --------------    -------------- 
                                                  1,355,228         2,723,133  
          Less accumulated depreciation             586,255         1,180,979  
                                              --------------    -------------- 
                                              $     768,973     $   1,542,154  
                                              --------------    -------------- 
                                                               


6.    Leases

         The  Company  is  obligated  under two  noncancelable  operating  lease
agreements  for office  facilities  expiring  in June 1999.  The Company has the
option to renew these leases for an additional term of three years.

         The  Company  has  also  entered  into  several   month-to-month  lease
agreements for apartment  space and equipment.  The total monthly rent under the
month-to-month agreements is approximately $12,300.

         Future  minimum  lease  payments   required  under  the   noncancelable
operating leases are as follows:

         Year ending December 31:

                           1998           $     427,806
                           1999                 214,336
                                          --------------
                                          $     642,142
                                          --------------


         Rent expense was $489,351 and $615,547 in 1996 and 1997, respectively.

<PAGE>

         The  present  value of future  minimum  capital  lease  payments  as of
December 31, 1997, is as follows:

         Year ending December 31:

                           1998                             $    937,917
                           1999                                  609,927
                           2000                                  350,741
                                                           --------------
                                                               1,898,585
          Less amounts representing interest                    (271,959)
                                                           --------------
          Present value of net minimum lease payments          1,626,626
          Less current obligations under capital leases         (784,913)
                                                           --------------
          Obligations under capital leases,              
             excluding current maturities                   $    841,713
                                                           ==============
                                                       

         During 1997, the Company sold and leased back various  equipment with a
net carrying value of $854,349.  The sale leaseback price totaled  $979,567,  of
which  $840,876  was  received in cash and the  remaining  $138,691  was used to
offset accounts  payable for fixed assets  originally  purchased by the Company.
The gain of $125,218 was recorded as unearned income and is being amortized on a
straight line basis over the lease term of three years. As of December 31, 1997,
$119,544 is included as unearned income on the balance sheet.


7.    Debt

         The Company has a revolving line of credit with a bank for  $2,650,000.
The line of credit expires on May 31, 1998. Interest shall accrue on any amounts
outstanding  based on the London  Interbank  Offered  Rate (LIBOR) plus 50 basis
points.  The line of credit is guaranteed by SEC. The most restrictive  covenant
of the revolving line of credit requires  financial  statements  within 120 days
after year-end. At December 31, 1996 and 1997, there was $2,650,000  outstanding
under this line of credit.


<PAGE>

         During  1997,  the  Company  obtained a  revolving  line of credit with
another bank for $5,000,000. The line of credit is due on demand. Interest shall
accrue on any amounts  outstanding based on a floating interest rate attached to
the LIBOR.  The line of credit is guaranteed by SEC. At December 31, 1997, there
was $5,000,000 outstanding under this line of credit.


8.    Stockholders' equity

         On April 16, 1996, the  stockholders  approved an increase in the total
number of shares of all classes of stock which the Company shall have  authority
to issue to 11,028,302  shares,  consisting of 7,507,632 shares of common stock,
$.01 par value;  1,265,953 shares of Series A Convertible Preferred Stock, $1.00
par value;  1,000,000 shares of Series B Convertible  Preferred Stock, $1.00 par
value; and 1,254,717 shares of Series C Convertible  Preferred Stock,  $1.00 par
value.  Also on this  date,  the  Company  issued  1,254,717  shares of Series C
Convertible  Preferred  Stock  for  $6,650,000  to SEC  less  issuance  costs of
$24,530. Simultaneously,  the Company issued a contingent warrant to SEC for the
purchase of 500,000  shares of the  Company's  common stock for $5.30 per share.
The  warrant  has a ten year term and shall be  exercisable  only if the Company
conducts an initial  public  offering of the  Company's  common  stock.  If this
contingency  is lifted,  the Company would then recognize the related cost based
on the fair value of the warrant at its measurement date upon the effective date
of an initial public offering.

         Each  holder of common and  preferred  stock is entitled to vote on all
matters presented to the  stockholders.  Each share of common stock entitles the
holder to one vote,  and each share of  preferred  stock  entitles the holder to
vote  equal to the number of shares of common  stock  into which such  shares of
preferred stock is convertible.  Each share of preferred stock is convertible at
a rate  determined by dividing the purchase price of the preferred  stock by the
"conversion  price."  Initially,  the  "conversion  price"  will be equal to the
purchase  price but is  subject  to  adjustment  under the terms of the  related
agreements  in the event  that  common  stock is issued at prices  less than the
applicable  "conversion  price" in effect.  The Series A, Series B, and Series C
Convertible  Preferred Stock are not  convertible  until after December 31, 1997
and are currently convertible into 3,297,266 shares of common stock.

         Each share of Series A and Series B Convertible  Preferred  Stock has a
preference in liquidation  of $2.35 per share plus accrued and unpaid  dividends
(as and if declared) and  participates  with common stock in  liquidation to the
extent liquidation proceeds exceed the preference amounts.  Series C Convertible
Preferred  Stock has  preference in  liquidation of $5.30 per share plus accrued
and unpaid dividends (as and if declared) and participates  with common stock in
liquidation to the extent liquidation proceeds exceed the preference amounts.

         The Series B and Series C Convertible  Preferred  Stock have  mandatory
redemption  features on all outstanding shares which requires the Company to pay
$2.35 and $5.30,  respectively,  per share  adjusted  according to the agreement
plus all declared  but unpaid  dividends on January 1, 2001 and January 1, 2002,
respectively.  The Company adjusts the carrying value of the Series B and Series
C Convertible  Preferred Stock for periodic  accretions,  on an annual basis, in
order to increase the carrying value to the redemption value.

         As of December 31, 1996 and 1997,  the Company has  reserved  4,020,670
shares of common stock for issuance upon conversion of the 3,297,266 outstanding
shares of  convertible  preferred  stock and exercise of the 500,000  contingent
common stock purchase  warrants.  Also, 223,404 shares of common stock have been
reserved as of December 31, 1996 and 1997,  for potential  exercise of preferred
warrants.



9.    Incentive stock plan

         During November 1996, the Company adopted the 1996 Incentive Stock Plan
(the Plan),  under which incentive stock options,  non-qualified  stock options,
stock  purchases,  and  restricted  share  awards may be  granted to  employees,
directors,  officers, and consultants of the Company or any related Corporation.
The purpose of the Plan is to encourage key employees and other  individuals who
render  services to the Company to  participate  in the ownership of the Company
and its future growth.
<PAGE>

         The Plan is  administered  by a  committee  appointed  by the  Board of
Directors.  The  options  are  not  transferable  and  are  subject  to  various
restrictions  outlined in the 1996 Plan. The committee  determines the number of
options granted to a key employee,  officer,  director,  consultant,  or related
Corporation,  the vesting period and the exercise price.  The exercise price for
non-qualified  options,  and the purchase price of stock granted in any award or
authorized  purchase  may be less than the fair value of the common stock of the
Company on the date of grant.  The exercise  price for  incentive-stock  options
granted  shall not be less than the fair value per share of common  stock on the
date of such  grant.  During the year  ended  December  31,  1997,  the  Company
exchanged all options with an exercise price of $3.50 per share for options with
an  exercise  price of $0.50 per share,  the  estimated  per share  value of the
common stock as determined by the Board of Directors.

         The committee  authorized the Board of Directors to grant options for a
total of 1,819,582 shares of common stock under the Plan.  Options granted under
the plan  generally  vest over a three to four year  period and expire ten years
after date of grant.

         Stock option  activity  under the Plan for the years ended December 31,
1996 and 1997 was as follows:

<TABLE>
<CAPTION>

                                                                 Non-                     Weighted
                                                  Incentive    qualified                  Average
                                                   Stock         Stock                    Exercise
                                                  Options       Options      Total         Price
                                                 ----------    ---------   -----------   ---------
<S>                                              <C>            <C>        <C>             <C>  
    Options outstanding, January 1, 1996             -            -            -             -
    Granted                                       1,082,269      92,000     1,174,269      $3.50
    Exercised                                        -            -            -             -
    Canceled                                         -            -            -             -
                                                 -----------   ---------   -----------   
    Options outstanding, December 31, 1996        1,082,269      92,000     1,174,269      $3.50
    Granted                                       1,169,262      71,500     1,240,762      $0.50
    Exercised                                        -           (7,500)       (7,500)     $0.50
    Canceled                                     (1,082,269)    (92,000)   (1,174,269)     $3.50
                                                 -----------   ---------   -----------   
    Options outstanding, December 31, 1997        1,169,262      64,000     1,233,262      $0.50
                                                 ===========   =========   ===========   
</TABLE>

         At  December  31,  1996 and 1997,  293,567  and  489,182  options  were
exercisable,  respectively.  The weighted  average fair value of options granted
during  the  years  ended  December  31,  1996 and 1997,  was  $1.59 and  $0.20,
respectively, based on an option pricing model.

<PAGE>

         The Company  accounts for its employee  stock options under the Plan in
accordance  with APB No.  25.  Accordingly,  no  compensation  expense  has been
recognized  for the Plan  because the exercise  price is equal to the  estimated
fair  value of the  underlying  common  stock.  Had  compensation  expense  been
determined  based on the fair value at the grant date for options under the Plan
consistent  with SFAS No. 123, the Company's net loss would have been  increased
to the pro forma amounts indicated below:

                                              1996            1997      
                                         -------------    ------------- 
               Net loss                                                 
                    As reported          $ (6,041,527)    $ (3,384,192) 
                    Pro forma            $ (6,506,827)    $ (3,450,081) 
                                                      
         The fair value of each option is estimated on the date of grant using a
type of Black-Scholes  option-pricing model with the following  weighted-average
assumptions  used for grants during the years ended  December 31, 1996 and 1997:
dividend  yield of 0%,  expected  volatility of 0%,  risk-free  interest rate of
6.93%  and  6.38%,  respectively  and  expected  term  of  9.0  and  8.1  years,
respectively.

         As of December 31, 1997,  the weighted  average  remaining  contractual
life of the options is 9.6 years.

         As of  December  31,  1996 and 1997,  the pro forma tax  effects  would
include an increase to the  deferred  tax asset and the  valuation  allowance of
$181,467 and $25,380, respectively;  therefore, there is no pro forma tax effect
related to SFAS 123.

<PAGE>


10.   Income taxes

         The tax effect of temporary  differences  that give rise to significant
portions of the deferred tax asset at December 31, 1996 and 1997, is as follows:

                                                     1996            1997
                                                --------------  --------------

          Net operating loss carryforward       $   4,282,846   $   5,464,857
          Research and development tax
          credit carryforward                         103,864         221,460
          Other deferred tax assets                    56,085         166,845
                                                --------------  --------------
                                                    4,442,795       5,853,162
          Less valuation allowance                 (4,442,795)     (5,853,162)
                                                --------------  --------------
          Net deferred tax asset                $         -     $         -
                                                ==============  ==============



         At December 31, 1997, net operating loss carryforwards of approximately
$14,725,000 are available for income tax purposes.  In connection with the April
16, 1996 preferred  stock  transaction,  a change in ownership  occurred for tax
purposes.  This  change,  together  with  previous  changes in  ownership  which
occurred in 1992 and 1994, resulted in limiting the Company's ability to utilize
net operating  losses incurred prior to that date.  Approximately  $7,317,000 of
the net  operating  loss  carryforward  at December 31, 1997 can be used without
limitation  during 1998 and later years.  The  remaining  $7,408,000  of the net
operating loss  carryforward  can be used at a rate of $355,000 per year in 1998
and later years. An unused  limitation  amount is carried over to the subsequent
year. The net operating  losses will expire in varying  amounts through the year
2012.

<PAGE>


         In  assessing  the  realizability  of deferred  tax assets,  management
considers  whether it is more  likely  than not that some  portion or all of the
deferred tax asset will not be realized.  The  ultimate  realization  of the net
deferred tax asset is dependent  upon the  generation of future  taxable  income
during the periods in which net  operating  loss  carryforwards  are  available.
Management considers projected future taxable income and tax planning strategies
which can be  implemented by the Company in making this  assessment.  Based upon
the level of historical  taxable income and projections of future taxable income
over the periods in which the net operating loss  carryforwards are available to
reduce taxes payable,  management has established a valuation allowance equal to
the net deferred tax asset at December 31, 1996 and 1997.


11.   Commitments

         In June 1996, the Company signed a development and production agreement
with  Tellabs,  Inc.  Pursuant  to the terms of the  agreement,  Tellabs  is due
$52,000  in  refunds  as a  result  of the  Company's  failure  to meet  certain
deliverables. In January 1998, both the Company and Tellabs reached a settlement
in which the  Company  has  granted  credits  against  future  development  work
totaling  $50,000.  This amount is  included in accrued  expenses on the balance
sheet as of December 31, 1997.

         During 1997, the Company entered into a chip set development  agreement
with  Ericsson  Telecom AB to achieve a product  release of two switch  chip set
circuits. Upon the sale of the first product release of the switch chip set, the
Company and Ericsson Telecom AB are to share 80% and 20%,  respectively,  of the
profit on these  sales.  Sales by the  Company  to  Ericsson  Telecom AB are not
subject to the profit sharing arrangement.

<PAGE>


12.   Related party transactions

         In 1996,  the  Company  entered  into  Technology  Transfer  and  Joint
Development  Agreements  with  SEC,  under  which  the  Company  is  to  receive
$3,500,000 as consideration for contract services performed by the Company.  One
of the 1996  contracts  requires  the  Company to pay SEC a royalty of 5% of the
revenue  from the  sales of the  product  developed  from the  contract  up to a
maximum of $1,550,000. The Company will then pay a royalty of 2% of revenue from
the sales of the product developed up to a maximum of $1,550,000.  There were no
royalties earned or paid to SEC during 1996 and 1997.

         The  Company has also sold  certain of its  products to SEC during 1996
and 1997.  Of the  Company's  total  net  sales in 1996 and 1997,  approximately
$3,723,000 and  $3,787,000,  respectively,  were with SEC.  Included in accounts
receivable  as of  December  31,  1996  and  1997  was  $917,734  and  $963,665,
respectively,  representing  accounts  receivable  from product  sales and joint
development  agreements  with SEC.  Included  in billings in excess of costs and
earnings  on  contracts-in-progress  related  to  SEC  were  $965,000  and $0 at
December 31, 1996 and 1997, respectively.

13.   Industry and geographic area segment information

         The Company's  major  operations are in contract  development  work and
product  sales.  The  contract   development  segment  researches  and  develops
telecommunications  technology and related  products in the U.S. under long-term
fixed fee  contracts.  The Company's  product  sales are generated  from various
countries.

<PAGE>




         Net  sales,   operating   income  (loss),   capital   expenditures  and
depreciation and amortization pertaining to the segments and geographic areas in
which the Company operates are presented below. Net sales over $500,000 from one
country  in a given  year are  disclosed  separately.  Net sales  from all other
countries are grouped as other.

                                                    1996             1997     
                                                -------------   --------------
                                                                              
         Industry Segments                                                    
         -----------------                                                    
         Net sales:                                                           
         Contract development                   $   2,807,169   $   3,038,290 
         Products                                   3,862,193       9,564,713 
                                                -------------   --------------
         Total net sales                        $   6,669,362   $  12,603,003 
                                                -------------   --------------
                                                                              
         Operating income (loss):                                             
         Contract development                   $    270,863    $   2,031,427 
         Products                                 (6,043,855)      (5,007,119)
                                                -------------   --------------
         Total operating loss                   $ (5,772,992)   $  (2,975,692)
                                                -------------   --------------
                                                                              
         Capital expenditures:                                                
         Contract development                   $          -    $           - 
         Products                                  1,215,370        1,607,478 
                                                -------------   --------------
         Total capital expenditures             $  1,215,370    $   1,607,478 
                                                -------------   --------------
                                                                              
         Depreciation and amortization:                                       
         Contract development                   $    366,865    $     101,761 
         Products                                    513,399        1,222,394 
                                                -------------   --------------
         Total depreciation and amortization    $    880,264    $   1,324,155 
                                                -------------   --------------
                                                                              
         Geographic Areas                                                     
         ----------------                                                     
         Net sales                                                            
          United States                         $  1,524,699    $   5,021,925 
          Korea                                    3,974,858        4,122,033 
          Canada                                      67,121        1,421,438 
          Israel                                     216,613          780,399 
          Japan                                      609,242          571,582 
          Other                                      276,829          685,626 
                                                -------------   --------------
                                                $  6,669,362    $  12,603,003 
                                                -------------   --------------
                                                                          
                                                                  
<PAGE>

14.   Subsequent events

         Subsequent  to year end,  SEC has  indicated  that it would  provide or
assist in  obtaining  sufficient  additional  funding to enable  the  company to
continue in operation through March 1, 1999.


15.   Sale of the Company

         On April 15, 1998, PMC-Sierra, Inc. (PMC) signed a definitive agreement
to  purchase  the Company at an  estimated  purchase  price of $55 million  with
approximately  half of the  consideration in cash and the remainder in PMC stock
and options. The transaction will be accounted for under the purchase method.


<PAGE>

(b)    Proforma financial information

        It is impracticable to provide the required  financial  statements as of
        the filing of this report.  Registrant  expects that pro forma financial
        statements  required  under this item will be filed within 60 days after
        the date on which this report is required to be filed.



(c)    Exhibits

           Exhibit    Description
           Number
        -----------   ----------------------------------------------------------
            2.1       Agreement and Plan of Reorganization dated as of April 15,
                      1998 by and among PMC-Sierra, Inc., Integrated Telecom
                      Technology, Inc., PMC-Sierra (Maryland), Inc. and Samsung
                      Electronics Co., Ltd.
     
           23.1       Consent of Coopers & Lybrand L.L.P.
        -----------   ----------------------------------------------------------
    


         SIGNATURES

         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
         the  registrant  has duly caused this report to be signed on its behalf
         by the undersigned thereunto duly authorized.

                  PMC-SIERRA, INC.
                  (Registrant)


         Date:    June 2, 1998                   /s/ JOHN W. SULLIVAN
                  ------------                   --------------------
                                                 John W. Sullivan
                                                 Vice President, Finance
                                                 Chief Financial Officer
                                                 (Principal Accounting Officer)





<PAGE>


                                PMC-SIERRA, INC.

                                    FORM 8-K

                                 CURRENT REPORT



                                  EXHIBIT INDEX


         Exhibit    Description
         Number
     -------------- ------------------------------------------------------------
           2.1      Agreement and Plan of Reorganization dated as of April 15,
                    1998 by and among PMC-Sierra, Inc., Integrated Telecom
                    Technology, Inc., PMC-Sierra (Maryland), Inc. and Samsung
                    Electronics Co., Ltd.

          23.1      Consent of Coopers & Lybrand L.L.P.
     -------------- ------------------------------------------------------------




                      AGREEMENT AND PLAN OF REORGANIZATION



         This AGREEMENT AND PLAN OF REORGANIZATION (the "Agreement") is made and
entered  into as of April 15,  1998 by and among  PMC-SIERRA,  INC.,  a Delaware
corporation ("Parent"),  PMC-SIERRA (Maryland), INC., a Delaware corporation and
a wholly-owned  subsidiary of Parent  ("Sub"),  INTEGRATED  TELECOM  TECHNOLOGY,
INC., a Maryland  corporation  ("Company"),  and solely with respect to Sections
2.6(d),  6.1(b),  6.4, 6.5, 6.16, 7.2 and Article VIII, SAMSUNG ELECTRONICS CO.,
LTD. ("Major Stockholder"). The parties agree as follows:


                                    ARTICLE I

                                   DEFINITIONS

         As used in this Agreement,  the following terms shall have the meanings
indicated  below,  including the singular,  plural,  conjunctive and disjunctive
forms of the term.

         I.1  "Affiliate"  means any Person that directly or indirectly  through
one or more  intermediaries,  controls or is  controlled  by or is under  common
control with the Person specified.

         I.2  "Agreement"  mean this Agreement and Plan of  Reorganization,  its
exhibits and the Company Disclosure Letter,  including  documents to be executed
as of the date hereof, at the Closing or at the Effective Time.

         I.3  "Ancillary Agreements" means the Stockholders Agreement.

         I.4  "Authorization"  means any  consent,  instrument,  order,  waiver,
license, concession, permit, grant, franchise, approval or other authorization.

         I.5  "Average Closing  Price" means the average per share closing price
of Parent  Common Stock for the five  consecutive  days that Parent Common Stock
has traded  ending on the trading day  immediately  before the Closing  Date, as
reported on the Nasdaq National Market.

         I.6  "Balance Sheet" means as set forth in Section 3.5.

         I.7  "Cash Amount" means $16.25 million divided by the number of shares
of  Preferred  Stock  outstanding  at the Closing  Date as adjusted  pursuant to
Section 6.6 hereof;  provided that the Cash Amount will be reduced to the extent
necessary in order to qualify the Merger as a reorganization  within the meaning
of Section  368 of the Code.  If such  reduction  is  required,  an  appropriate
adjustment  will be made to the Preferred  Exchange Ratio so that the holders of
Preferred Stock will receive,  in lieu of such Cash Amount, an additional number
of shares of Parent Common Stock and cash in lieu of fractional  shares having a
value  (determined as of the Closing Date) equal to the amount by which the Cash
Amount was reduced.

         I.8  "Certificates" means as set forth in Section 2.8.

         I.9  "Closing" means the closing of the Merger.

         I.10 "Closing Date" means  the date  upon  which the  Closing  actually
occurs.

         I.11 "Code" means the United States  Internal  Revenue Code of 1986, as
amended.
<PAGE>

         I.12 "Common  Exchange  Ratio" means the quotient  obtained by dividing
$8.08804 per share of Company  Common  Stock by the Average  Closing  Price,  as
adjusted pursuant to Section 6.6 hereof.

         I.13 "Common Stock Warrant" means as set forth in Section 3.2.

         I.14 "Company Capital Stock" means Company  Common Stock  and Preferred
Stock.

         I.15 "Company  Common  Stock" means all of the issued  and  outstanding
shares of Common Stock of Company, $0.01 par value per share.

         I.16 "Company  Disclosure Letter" means as set forth in the preamble to
Article III.

         I.17 "Company Financials" means as set forth in Section 3.5.

         I.18 "Company Option" means a stock option granted under Company's 1996
Stock Plan.

         I.19 "Conflict"  means   conflict  with,  violate,  or  result  in  any
violation  of,  breach of or default  under (with or without  notice or lapse of
time,  or  both),  or give  rise  to a right  of  termination,  cancellation  or
acceleration of any obligation or loss of any benefit under.

         I.20 "Contract"  means  any  agreement,  commitment,  lease,  sublease,
license, promissory note, indenture, evidence of indebtedness, or other contract
(whether written or oral) to which a specified Person is a party or by which the
Person's assets are bound.

         I.21 "Court  Order" means any judgment,  order,  award or decree of any
foreign,  federal,  state, local or other court or tribunal and any award in any
arbitration proceeding.

         I.22 "Delaware Law" means Delaware General Corporation Law.

         I.23 "Dissenting Shares" means as set forth in Section 2.7.

         I.24 "Effective  Time"  means  the  later  time of  acceptance  by  the
Secretary of State of Delaware or the Maryland  State  Department of Assessments
and  Taxation of the  Certificate  of Merger and  Articles of Merger  filed with
them, respectively, on the Closing Date.

         I.25 "Effectiveness Period" means as set forth in Section 6.11.

         I.26 "Encumbrance" means any lien, charge, security interest, mortgage,
pledge,  claim,  easement,  conditional  sale or other title  retention or other
restriction of a similar kind, and all other easements,  encroachments and title
defects  of every type and  nature,  or any  conditional  sale  contract,  title
retention  contract,  or other Contract to give or to refrain from giving any of
the foregoing.

         I.27 "Enforceability   Exclusions"   means    bankruptcy,   insolvency,
reorganization,  moratorium,  fraudulent transfer or conveyance and similar laws
of general application relating to or affecting creditors' rights and to general
equitable principles, or public policy.

         I.28 "Environmental Permits" means as set forth in Section 3.17.

         I.29 "ERISA" means the Employee Retirement Income Security Act of 1974,
as amended.

         I.30 "Escrow Agent"  means as set forth in Section 8.2(a).

         I.31 "Escrow Amount" means $3.9 million in cash.
<PAGE>

         I.32 "Escrow Fund" means as set forth in Section 8.2(a).

         I.33 "Escrow Period" means as set forth in Section 8.2(c).

         I.34 "Exchange Act" means as set forth in Section 4.4.

         I.35 "Exchange Ratio" means the Common  Exchange Ratio, Option Exchange
Ratio and Preferred Exchange Ratio.

         I.36 "Expiration Date" means as set forth in Section 8.1.

         I.37 "GAAP"  means  United   States   generally   accepted   accounting
principles.

         I.38 "Governmental  Entity" means any court,  administrative  agency or
commission  or other  federal,  state,  county,  local or  foreign  governmental
authority, instrumentality, agency or commission.

         I.39 "Hazardous Material" and "Hazardous Materials Activities" means as
set forth in Section 3.17.

         I.40 "Holder" means as set forth in Section 6.11.

         I.41 "Indemnified Party" means as set forth in Section 6.11.

         I.42 "Indemnifying Party" means as set forth in Section 6.11.

         I.43 "Intellectual  Property"  means  all  patents,  trademarks,  trade
names, service marks, copyrights, and any applications therefor,  maskworks, net
lists,  schematics,   technology,   know-how,   computer  software  programs  or
applications  (in both source code and object code  form),  trade  secrets,  and
tangible or intangible  proprietary  information or material (excluding packaged
commercially  available  software  programs  generally  available  to the public
through retail dealers in computer software which have been licensed pursuant to
end-user licenses and which are not a component of or incorporated in any of the
products of the specified Person).

         I.44 "IRS" means the United States Internal Revenue Service.

         I.45 "Knowledge" means a Person's actual  knowledge.  The "Knowledge of
Company" includes both actual knowledge and the contents of any written Contract
binding on the Company.

         I.46 "Law" means all statutes,  laws, ordinances,  rules,  regulations,
and other  pronouncements  having the effect of law of the  United  States,  any
state or  commonwealth  of the United States,  any city,  county,  municipality,
department, commission, board, bureau, agency or instrumentality thereof, or law
of any foreign jurisdiction.

         I.47 "Liability"  means  any  liability  ,  indebtedness,  obligation,
expense,  claim,  deficiency,  guaranty  or  endorsement  of any  type,  whether
accrued,  absolute,  contingent,  asserted,  unasserted,  matured,  unmatured or
otherwise.

         I.48 "Loss"  means any and all losses,  Liabilities,  damages,  claims,
fines, fees, penalties, interest obligations, costs and deficiencies,  including
without limitation reasonable attorneys' fees and other expenses of litigation.

         I.49 "Maryland Law" means Maryland General Corporation Law.

         I.50 "Material  Adverse Effect" means a material  adverse effect on the
business as now  conducted,  assets  (including  intangible  assets),  financial
condition or results of operations.

         I.51 "Merger" means the statutory merger of Company with and into Sub.
<PAGE>

         I.52 "Multiemployer   Plan"  means  any  Pension   Plan  which  is  a
"multiemployer plan", as defined in Section 3(37) of ERISA.

         I.53 "Officer's Certificate" means as set forth in Section 8.2(e).

         I.54 "Option  Exchange  Ratio" means the quotient  obtained by dividing
$8.08804 per share of Company  Common  Stock by the Average  Closing  Price,  as
adjusted pursuant to Section 6.6 hereof.

         I.55 "Parent  Common  Stock" means  shares  of voting  Common  Stock of
Parent, $0.01 par value per share.

         I.56 "Parent Financial Statements" means as set forth in Section 4.4.

         I.57 "Parent Reports" means as set forth in Section 4.4

         I.58 "Pension  Plan" refers to each Company  Employee  Plan which is an
"employee pension benefit plan", within the meaning of Section 3(2) of ERISA.

         I.59 "Permitted  Encumbrances"  means (a) liens  for current  taxes and
other governmental  charges and assessments which are not yet due and payable or
being  contested in good faith,  (b) liens of  landlords  and liens of carriers,
warehousemen,  workmen, repairmen, customer, employee, mechanics and materialmen
and other like liens arising in the ordinary course of business for sums not yet
due and payable, and (c) zoning restrictions, easements, licenses, imperfections
of title,  other  restrictions  on use of real  property and other  encumbrances
which do not materially detract from the value or impair the existing use of the
real property  subject  thereto or the  operations of Company or the business of
Company.

         I.60 "Person" means any natural person, corporation, partnership, joint
ventures,   union   association,   court,   agency,   governmental,    tribunal,
instrumentally,  commission,  arbitrator,  board,  bureau,  or other  entity  or
authority.

         I.61 "Preferred Exchange Ratio" means the quotient obtained by dividing
$4.45749 per share of Preferred  Stock by the Average Closing Price, as adjusted
pursuant to Section 6.6 hereof.

         I.62 "Preferred  Stock" means all of the issued and outstanding  shares
of Series A Preferred  Stock,  Series B  Preferred  Stock and Series C Preferred
Stock of Company, $1.00 par value per share.

         I.63 "Preferred  Warrant" means all  outstanding  warrants  to purchase
shares of Preferred Stock.

         I.64 "Registrable  Shares"  and  "Registration  Statement" means as set
forth in Section 6.11.

         I.65 "Return" or "Returns" means all federal,  state, local and foreign
returns, estimates, information statements and reports relating to Taxes.

         I.66 "SEC" means as set forth in Section 4.4.

         I.67 "Securities  Act" means the United States  Securities Act of 1933,
as amended.

         I.68 "Securityholder Agent" means as set forth in Section 8.2(h).

         I.69 "Sell"  or  "Sold"  means  to  sell,  assign,   transfer,  convey,
encumber, exchange, pledge, license all or substantially all of an interest in a
specified asset or right, or otherwise dispose of.

         I.70 "Stockholders Agreement" means as set forth in Section 6.1.

         I.71 "Subsidiary" means as set forth in Section 3.3.
<PAGE>

         I.72 "Surviving  Corporation"  means Sub as the surviving  corporation
after the Merger.

         I.73 "Suspension Right" means as set forth in Section 6.11.

         I.74  "Tax" or  "Taxes"  means any and all  federal,  state,  local and
foreign  taxes  imposed by a taxing  authority,  including  taxes  based upon or
measured by gross receipts,  income,  profits,  sales,  use and occupation,  and
value added, ad valorem, transfer, franchise,  withholding,  payroll, recapture,
employment, excise and property taxes, together with all interest, penalties and
additions  imposed with respect to such  amounts and any  obligations  under any
agreements  or  arrangements  with any other Person with respect to such amounts
and including any liability for taxes of a predecessor entity.

         I.75 "Third Party Expenses" means as set forth in Section 6.6.

         I.76 "Violation" means as set forth in Section 6.11.

         I.77 "Warrant  Share Price" means  $1,571,828  divided by the number of
shares of  Preferred  Stock  issuable  upon  exercise  of  warrants  to purchase
Preferred Stock, as adjusted pursuant to Section 6.6 hereof.


                                   ARTICLE II

                                   THE MERGER

         II.1  The Merger.  At the  Effective  Time,  subject  to the  terms and
conditions of this Agreement and the  applicable  provisions of Delaware Law and
Maryland Law, Company shall be merged with and into Sub, the separate  corporate
existence  of  Company  shall  cease and Sub  shall  continue  as the  surviving
corporation and as a wholly-owned subsidiary of Parent.

         II.2  Effective  Time.  Unless  this  Agreement  is earlier  terminated
pursuant to Section 9.1, the Closing will take place as promptly as practicable,
but no later than five business  days  following  satisfaction  or waiver of the
conditions set forth in Article VII, at the offices of Wilson Sonsini Goodrich &
Rosati, 650 Page Mill Road, Palo Alto, California,  unless another place or time
is agreed to in writing by Parent and Company.  On the Closing Date, the parties
hereto  shall  cause the Merger to be  consummated  by filing a  Certificate  of
Merger and Articles of Merger (or like  instruments) with the Secretary of State
of the State of Delaware and the Maryland State  Department of  Assessments  and
Taxation, respectively, in accordance with the relevant provisions of applicable
law.

         II.3  Effect of the Merger.  At the Effective  Time,  the effect of the
Merger  shall be as provided in the  applicable  provisions  of Delaware Law and
Maryland Law.  Without  limiting the  generality of the  foregoing,  and subject
thereto, at the Effective Time, all the property, rights, privileges, powers and
franchises of Company and Sub shall vest in the Surviving  Corporation,  and all
debts,  liabilities  and  duties of  Company  and Sub shall  become  the  debts,
liabilities  and duties of the  Surviving  Corporation,  except for Third  Party
Expenses which will be paid as set forth in Section 6.6.

         II.4   Certificate of Incorporation; Bylaws.

                  (a)  Unless  otherwise  determined  by  Parent  prior  to  the
Effective Time, at the Effective Time, the Certificate of  Incorporation of Sub,
as in effect  immediately  prior to the Effective Time, shall be the Certificate
of  Incorporation  of the  Surviving  Corporation  until  thereafter  amended as
provided by law and such Certificate of Incorporation.

                  (b) The Bylaws of Sub, as in effect  immediately  prior to the
Effective  Time,  shall  be  the  Bylaws  of  the  Surviving  Corporation  until
thereafter amended.
<PAGE>

         II.5   Directors and Officers.  The directors of Sub  immediately prior
to  the  Effective  Time  shall  be  the  initial  directors  of  the  Surviving
Corporation,  each  to  hold  office  in  accordance  with  the  Certificate  of
Incorporation  and Bylaws of the  Surviving  Corporation.  The  officers  of Sub
immediately  prior to the  Effective  Time shall be the initial  officers of the
Surviving Corporation,  each to hold office in accordance with the Bylaws of the
Surviving Corporation.

         II.6   Effect on Capital Stock.  Subject to the terms and conditions of
this  Agreement,  at the Effective Time, by virtue of the Merger and without any
action on the part of Sub,  Company  or the  holders  of any  shares of  Company
Capital Stock or capital stock of Sub, the following shall occur:

                  (a) Preferred Stock.  Each share of Preferred Stock issued and
outstanding  immediately  prior to the Effective Time (other than any Dissenting
Shares) will be canceled and  extinguished and be converted  automatically  into
the right to receive, upon surrender of the certificate representing such shares
of Preferred  Stock in the manner provided in Section 2.8, the Cash Amount and a
fraction of a fully paid and nonassessable share of Parent Common Stock equal to
the Preferred Exchange Ratio.

                  All such shares of Preferred Stock,  when so converted,  shall
no longer be  outstanding  and shall  automatically  be canceled and retired and
shall cease to exist,  and each holder of a  certificate  representing  any such
shares shall cease to have any rights with respect thereto,  except the right to
receive the Cash Amount and shares of Parent Common Stock.

                  (b) Company  Common Stock.  Each share of Company Common Stock
issued and outstanding  immediately  prior to the Effective Time (other than any
Dissenting   Shares)  will  be  canceled  and   extinguished  and  be  converted
automatically  into the right to  receive,  upon  surrender  of the  certificate
representing  such  shares of Company  Common  Stock in the manner  provided  in
Section 2.8, a fraction of a fully paid and nonassessable share of Parent Common
Stock equal to the Common  Exchange  Ratio.  All such  shares of Company  Common
Stock, when so converted, shall no longer be outstanding and shall automatically
be  canceled  and  retired  and  shall  cease to  exist,  and each  holder  of a
certificate  representing  any such  shares  shall cease to have any rights with
respect  thereto,  except the right to receive  shares of Parent  Common  Stock.

                  (c)  Company  Options.   At  the  Effective  Time,  each  then
outstanding Company Option,  whether or not then vested and exercisable (and not
yet exercised), will be, in connection with the Merger, substituted by Parent as
described below.

                           (i) Each Company  Option  substituted by Parent shall
have,  and be subject to, the terms and  conditions  set forth in Parent's  1998
PMC-Sierra  (Maryland),  Inc.  Stock Plan,  and (A) such Company Option shall be
exercisable  for that number of whole shares of Parent Common Stock equal to the
product of the number of shares of Company  Common Stock that were issuable upon
exercise  of  such  Company  Option   immediately   before  the  Effective  Time
(regardless of whether or not such options have vested) multiplied by the Common
Exchange  Ratio,  rounded  down to the nearest  whole number of shares of Parent
Common  Stock,  and (B) the per share  exercise  price for the  shares of Parent
Common Stock  issuable  upon  exercise of such assumed  Company  Option shall be
equal to the quotient  determined  by dividing  the exercise  price per share of
Company  Common Stock at which such Company Option was  exercisable  immediately
before  the  Effective  Time by the  Common  Exchange  Ratio,  rounded up to the
nearest whole cent.

                           (ii) It is the  intention of the parties that Company
Options  substituted by Parent qualify following the Effective Time as incentive
stock  options as defined in Section  422 of the Code to the extent the  Company
Options qualified as incentive stock options  immediately prior to the Effective
Time. Parent shall use commercially  reasonable efforts to ensure that the terms
of Company  Options  substituted by Parent will not contain any provisions  that
constitute an "additional  benefit"  within the meaning of Section  424(h)(3) of
the Code.

                           (iii) Promptly after the Effective Time,  Parent will
issue to each holder of an outstanding  Company Option a document evidencing the
foregoing substitution of such Company Option by Parent.


<PAGE>

                  (d) Warrants.

                           (i) At the Effective  Time,  each warrant to purchase
Preferred Stock issued and outstanding  immediately prior to the Effective Time,
will be canceled and extinguished and be converted  automatically into the right
to receive,  upon  surrender  of such warrant for  cancellation  to Parent or to
agent or  agents as may be  appointed  by  Parent,  a cash  amount  equal to the
Warrant  Share  Price  multiplied  by the  number of shares of  Preferred  Stock
issuable upon exercise of such Warrant. Such warrant,  when so converted,  shall
no longer be  outstanding  and shall  automatically  be canceled and retired and
shall cease to exist,  and each holder of such  warrant  shall cease to have any
rights with respect thereto, except the right to receive the Warrant Share Price
multiplied by the number of shares of Preferred  Stock issuable upon exercise of
such Warrant.

                           (ii) At the Effective  Time, the Common Stock Warrant
shall  automatically  be canceled and retired and shall cease to exist,  and the
holder of such Common Stock  Warrant shall cease to have any rights with respect
thereto.  No cash shall be paid and no Parent  Common Stock shall be issuable in
respect of such Common Stock Warrant.

                  (e) Capital  Stock of Sub.  Each share of Common  Stock of Sub
issued and  outstanding  immediately  prior to the  Effective  Time shall remain
unchanged.

                  (f)   Adjustments  to  Cash  Amount  and  Exchange  Ratio.  No
adjustment shall be made in the Cash Amount or Exchange Ratio as a result of any
cash  proceeds  received by Company from the date hereof to the  Effective  Time
pursuant to the exercise of options, warrants or other rights to acquire Company
Common Stock.  The Exchange  Ratio shall be adjusted to reflect fully the effect
of any stock split,  reverse split,  stock  dividend  (including any dividend or
distribution  of  securities  convertible  into Parent  Common  Stock or Company
Capital  Stock),  reorganization,  recapitalization  or other like  change  with
respect to Parent Common Stock or Company Capital Stock occurring after the date
hereof and prior to the Effective Time. Adjustments, if any, to the Cash Amount,
Warrant  Share Price and  Exchange  Ratios shall be made as set forth in Section
6.6 hereof.

         II.7     Dissenting Shares.

                  (a)  Notwithstanding  any  provision of this  Agreement to the
contrary  but subject to  Subsection  (b) below,  any shares of Company  Capital
Stock held by a holder who has exercised and perfected  appraisal or dissenters'
rights  for such  shares in  accordance  with  Maryland  Law and who,  as of the
Effective  Time, has not  effectively  withdrawn or lost such  appraisal  rights
("Dissenting  Shares"),  shall not be  converted  into or  represent  a right to
receive the Cash Amount and/or Parent Common Stock  pursuant to Section 2.6, but
the holder  thereof  shall only be  entitled  to such  rights as are  granted by
Maryland Law.

                  (b) If any  holder  of  Dissenting  Shares  shall  effectively
withdraw  or lose  (through  failure  to  perfect  or  otherwise)  the  right to
appraisal or dissenters' rights,  then, as of the later of the Effective Time or
the  occurrence  of such event,  such  holder's  shares shall  automatically  be
converted  into and  represent  only the right to receive the Cash Amount and/or
Parent  Common  Stock  plus cash in lieu of  fractional  shares as  provided  in
Section 2.6 upon surrender of the certificate  representing such shares, subject
to the conditions set forth below and throughout this Agreement.


                  (c)  Company  shall give Parent and  Securityholder  Agent (i)
prompt  notice of any  written  demand  for  appraisal  of any shares of Company
Capital Stock,  withdrawals  of such demand,  and any other  instruments  served
pursuant to Maryland Law and received by Company,  and (ii) the  opportunity  to
participate in all  negotiations  and proceedings  with respect to such demands.
Company shall not, except with the prior written consent of Parent,  voluntarily
make any payment  with  respect to any such demands or offer to settle or settle
any such demands.

                  (d) To the extent that Parent or Company  makes any payment or
payments  in  respect  of any  Dissenting  Shares  (which  payments,  after  the
Effective   Time,   shall  not  be  made  by  Parent   without  the  consent  of
Securityholder  Agent, which consent may not be unreasonably  withheld),  Parent
shall be  entitled  to  recover  under  the terms of  Article  VIII  hereof  the
aggregate  amount by which  such  payment  or  payments  exceed the value of the
consideration  that otherwise  would have been payable in respect of such shares
in connection  with the Merger.  The $250,000  "deductible" in Section 8.2 shall
not apply to Parent's right to recover these amounts.
<PAGE>

         II.8     Surrender of Certificates.

                  (a) Exchange  Procedures.  Promptly after the Effective  Time,
the Surviving Corporation shall cause to be mailed to each holder of record of a
certificate  or  certificates  which  immediately  prior to the  Effective  Time
represented outstanding shares of Preferred Stock or Company Common Stock, which
shares were  converted  into the right to receive the Cash Amount  and/or Parent
Common Stock pursuant to Section 2.6 above (such  certificates being hereinafter
collectively  referred to as the  "Certificates"),  (x) a letter of  transmittal
(which shall specify that delivery shall be effected, and risk of loss and title
to the Certificates shall pass, only upon delivery of the Certificates to Parent
and  shall  be in such  form  and have  such  other  provisions  as  Parent  may
reasonably specify), (y) a Stockholders Agreement in the form attached hereto as
Exhibit  A (the  "Stockholders  Agreement"),  and  (z)  instructions  for use in
effecting  the  surrender  of the  Certificates  in exchange for the Cash Amount
and/or  certificates  representing shares of Parent Common Stock. Upon surrender
of a Certificate for cancellation to Parent or to such agent or agents as may be
appointed  by Parent,  together  with such  letter of  transmittal  and,  if not
previously  delivered,  a  Stockholders  Agreement,  duly  completed and validly
executed in accordance with the instructions thereto:

                           (i)  the  holder  of  such  Certificate  representing
Preferred  Stock  shall be entitled  to receive in  exchange  therefor  the Cash
Amount  (less the  amount of cash to be  deposited  in the  Escrow  Fund on such
holder's behalf pursuant to Article VIII hereof) and a certificate  representing
the  number  of  whole  shares  of  Parent  Common  Stock  plus  cash in lieu of
fractional shares, to which such holder is entitled pursuant to Section 2.6, and
the Certificate so surrendered shall forthwith be canceled,

                           (ii)  the  holder  of such  Certificate  representing
Company  Common  Stock  shall be  entitled  to  receive in  exchange  therefor a
certificate  representing the number of whole shares of Parent Common Stock plus
cash in lieu of fractional  shares, to which such holder is entitled pursuant to
Section 2.6, and the Certificate so surrendered shall forthwith be canceled, and

                           (iii)   until  so   surrendered,   each   outstanding
Certificate  that,  prior to the Effective Time,  represented  shares of Company
Capital  Stock,  will be  deemed  from and  after the  Effective  Time,  for all
corporate purposes,  other than payment of dividends, to evidence only the right
to receive the Cash Amount in respect of each such share  (subject to the escrow
provisions  in Article  VIII) and/or the ownership of the number of whole shares
of Parent  Common  Stock into which such shares of Company  Capital  Stock shall
have been so  converted  and the  right to  receive  cash in lieu of  fractional
shares pursuant to Section 2.6.

                  (b) Escrow Deposit. As soon as practicable after the Effective
Time,  and subject to and in  accordance  with the  provisions  of Article  VIII
hereof,  Parent  shall cause to be  distributed  to the Escrow  Agent the Escrow
Amount in cash. Such cash shall be beneficially  owned by the Major  Stockholder
and shall be available to compensate Parent as provided in Article VIII.

                  (c)  Transfers of  Ownership.  If any payment is to be made or
any  certificate  for shares of Parent  Common Stock is to be issued to a person
other than the  holder in whose name the  Certificate  surrendered  in  exchange
therefor is registered,  it will be a condition of the payment  and/or  issuance
thereof  that the  Certificate  so  surrendered  will be properly  endorsed  and
accompanied  by all documents  required to evidence and effect such transfer and
otherwise  in proper  form for  transfer,  and that the person  requesting  such
exchange will have paid to Parent or any agent  designated by it any transfer or
other taxes  required by reason of the issuance of a  certificate  for shares of
Parent Common Stock in any name other than that of the registered  holder of the
Certificate  surrendered,  or established to the  satisfaction  of Parent or any
agent designated by it that such tax has been paid or is not payable.

                  (d)  Distributions  With  Respect to  Unexchanged  Shares.  No
dividends or other distributions with respect to Parent Common Stock declared or
made after the Effective  Time and with a record date after the  Effective  Time
will be paid to the holder of any unsurrendered  Certificate with respect to the
shares of Parent Common Stock represented  thereby until the holder of record of
such Certificate  shall surrender such  Certificate.  Subject to applicable law,
following  surrender of any such Certificate,  there shall be paid to the record
holder of the  certificates  representing  whole  shares of Parent  Common Stock
issued in exchange  therefor,  without interest,  at the time of such surrender,
the amount of  dividends  or other  distributions  with a record  date after the
Effective Time  theretofore  payable with respect to such whole shares of Parent
Common Stock.
<PAGE>

                  (e) No Liability.  Notwithstanding anything to the contrary in
this  Section,  none of Parent,  the Surviving  Corporation  or any party hereto
shall be liable to a holder of shares of Parent Common Stock or Company  Capital
Stock  for  any  amount  properly  paid to a  public  official  pursuant  to any
applicable abandoned property, escheat or similar law.

                  (f) Payments With Respect to Unexchanged Shares; No Fractional
Shares.  No interest on the Cash Amount  payable at or after the Effective  Time
shall be paid. No fraction of a share of Parent Common Stock will be issued, but
in lieu  thereof,  each  holder  of shares of  Company  Capital  Stock who would
otherwise  be entitled to a fraction of a share of Parent  Common  Stock  (after
aggregating all fractional  shares of Parent Common Stock to be received by such
holder)  shall be entitled to receive from Parent an amount of cash  (rounded to
the nearest whole cent) equal to the product of such fraction  multiplied by the
Average Closing Price.

         II.9  No Further Ownership Rights in Company Capital Stock. All amounts
paid,  and all shares of Parent  Common Stock  issued,  upon the  surrender  for
exchange of shares of Company  Capital Stock in accordance with the terms hereof
shall  be  deemed  to have  been  issued  in  full  satisfaction  of all  rights
pertaining to such shares of Company  Capital  Stock.  There shall be no further
registration of transfers on the records of the Surviving  Corporation of shares
of  Company  Capital  Stock  which  were  outstanding  immediately  prior to the
Effective Time. If, after the Effective Time,  Certificates are presented to the
Surviving  Corporation  for any reason,  they shall be canceled and exchanged as
provided in Section 2.6.

         II.10  Lost,  Stolen  or  Destroyed  Certificates.  In  the  event  any
certificates  evidencing  shares of Company  Capital Stock shall have been lost,
stolen or destroyed, Parent shall make payment in exchange for such lost, stolen
or destroyed  certificates,  upon the making of an affidavit of that fact by the
holder  thereof,  of such Cash Amount  and/or such shares of Parent Common Stock
plus cash in lieu of fractional  shares,  if any, as may be required pursuant to
Section 2.6; provided that Parent may, in its sole discretion and as a condition
precedent to such payment or issuance, require the owner of such lost, stolen or
destroyed   certificates   to  deliver  an  agreement  (in  form  and  substance
satisfactory  to Parent) to indemnify  Parent against any claim that may be made
against  Parent  with  respect  to the  certificates  alleged to have been lost,
stolen or destroyed.

         II.11  Tax and Accounting  Treatment.  It is  intended  by the  parties
hereto that the Merger will  qualify as a  reorganization  within the meaning of
Section  368 of the Code,  and will be treated  as a  "purchase"  for  financial
accounting  purposes.  No party to this  Agreement  shall take any action  which
would prevent the Merger as  contemplated by this Agreement from qualifying as a
reorganization  within the  meaning of Section  368(a) of the Code,  or take any
action that would be inconsistent with such treatment.

         II.12 Taking of Necessary Action; Further Action. If, at any time after
the Effective  Time,  any further  action is necessary or desirable to carry out
the purposes of this Agreement and to vest the Surviving  Corporation  with full
right, title and possession to all assets, property, rights, privileges,  powers
and  franchises of Company or to vest Parent with a 100%  ownership  interest in
the  Surviving  Corporation,  the officers and  directors of Company and Sub are
fully  authorized in the name of their  respective  corporations or otherwise to
take, and will take,  all such lawful and necessary or desirable  action so long
as such action is consistent with this Agreement.

<PAGE>

                                   ARTICLE III

                    REPRESENTATIONS AND WARRANTIES OF COMPANY

         Company  represents  and  warrants  to Parent and Sub,  subject to such
exceptions as are  specifically  disclosed in the disclosure  letter provided by
the Company to Parent (the "Company Disclosure Letter"), as follows:

         III.1  Organization.

                  (a) Company is a corporation duly organized,  validly existing
and in good  standing  under the laws of the State of Maryland.  Company has the
corporate  power  and  authority  to own or  lease,  and to  operate  or use its
properties,  and to carry on its business as of the date hereof. Company is duly
qualified to do business as a foreign  corporation  and is in good standing as a
foreign  corporation in each jurisdiction in which the nature of its business or
ownership  or  leasing  of  properties  makes such  qualification  or  licensing
necessary,  each  such  jurisdiction  listed  in  Section  3.1  of  the  Company
Disclosure  Letter,  except where  failure to be so  qualified  would not have a
Material Adverse Effect on Company.

                  (b)  True  and  complete  copies  of  Company's   Articles  of
Incorporation  and  Bylaws,  each as amended to date,  and of the minutes of the
proceedings of its board of directors, committees thereof and stockholders, have
been delivered to Parent.  The minute books of Company made available to counsel
for  Parent  are the only  minute  books of  Company  and  contain a  reasonably
accurate  summary of all material actions taken at all meetings of directors (or
committees  thereof) and  stockholders  or actions by written  consent since the
time of incorporation of Company.

         III.2  Capital Structure.

                  (a) The  authorized  capital stock of the Company  consists of
(i)  7,507,632  shares of Common  Stock,  $0.01  par value per  share,  of which
455,282 shares are issued and  outstanding  and 500,000 shares of Company Common
Stock are reserved for issuance upon exercise of a warrant to purchase shares of
Company Common Stock (the "Common Stock Warrant"),  and (ii) 3,520,670 shares of
Preferred  Stock,  $1.00  par  value per  share,  1,265,953  shares of which are
designated as Series A Convertible  Preferred  Stock, of which 1,042,549  shares
are issued and  outstanding  and 223,404  shares are reserved for issuance  upon
exercise of a warrant to purchase Series A Preferred Stock;  1,000,000 shares of
which are designated  Series B Convertible  Preferred  Stock, of which 1,000,000
shares are issued and outstanding;  and 1,254,717 shares of which are designated
Series C Convertible  Preferred  Stock, of which 1,254,717 shares are issued and
outstanding. Company Capital Stock is held by the Persons and in the amounts set
forth  on  Section  3.2 of the  Company  Disclosure  Letter.  At the time of the
Closing,  Section 3.2 shall have been  appropriately  adjusted to reflect  stock
repurchases  and  exercises  from  the  date  hereof  of  options  and  warrants
outstanding on the date hereof as provided in paragraph (c),  provided that such
repurchase or exercise  shall be made only in accordance  with the provisions of
Section 5.1.

                  (b) All  outstanding  shares of Company Capital Stock are duly
authorized,  validly  issued,  fully  paid and  nonassessable,  not  subject  to
preemptive rights created by statute, the Articles of Incorporation or Bylaws of
Company or any  Contract,  and not  subject to rights of first  refusal or other
similar  rights  relating to Company's  Capital  Stock.  All issuances of equity
securities  of Company were issued in  compliance  with  applicable  federal and
state  securities  laws.  There are no voting  trusts or other  arrangements  or
understandings  with  respect to the voting,  or giving of written  consent with
respect to, any Company  Capital Stock,  other than  agreements  entered into in
connection with the transactions contemplated by this Agreement. Company has not
granted or agreed to grant any registration rights,  including piggyback rights,
to any  Person.  Except  for the  Company  Options  and the  warrants  and other
arrangements  described in Section 3.2 of the Company Disclosure  Letter,  there
are no  agreements,  arrangements,  options,  warrants,  calls or other  rights,
written or oral,  relating to the issuance,  Sale, purchase or redemption of any
shares of Company Capital Stock.  As a result of the Merger,  Parent will be the
record and beneficial owner of all outstanding  Company Capital Stock and rights
to acquire Company Capital Stock.

                  (c) The  Company  has  reserved  1,819,582  shares of  Company
Common Stock for issuance to employees,  directors and  consultants  pursuant to
Company's 1996 Stock Plan, of which 1,219,710  shares are subject to outstanding
unexercised  options and  525,008  shares  remain  available  for future  grant.
Section 3.2 of the  Company  Disclosure  Letter sets forth for each  outstanding
Company Option,  the name of the holder of such option,  the number of shares of
Common Stock subject to such option,  the exercise  price of such option and the
vesting  schedule  for such option,  including  the extent  vested to date.  All
Company  Options have been issued in accordance with the terms of Company's 1996
Stock Plan and pursuant to the  standard  forms of option  agreement  previously
provided  to Parent.  Neither  the  Merger,  the  consummation  of  transactions
contemplated  by this  Agreement  nor any action taken by Company in  connection
with such transactions,  will result in (i) any acceleration of vesting in favor
of any optionee under any Company  Option;  or (ii) any additional  benefits for
any optionee under any Company Option.
<PAGE>

         III.3 Subsidiaries. Other than Integrated Telecom Technology, Inc. (the
"Subsidiary"), a wholly-owned subsidiary of Company incorporated in the State of
Delaware which has had no operations,  Company does not,  directly or indirectly
(i) own, of record or beneficially,  any equity interests in any Person, or (ii)
control any Person.

         III.4  Authority; Conflicts.

                  (a) Subject only to the  requisite  approval of the Merger and
this  Agreement  by  the  Company's  stockholders,  Company  has  all  requisite
corporate power and authority to execute, deliver and perform this Agreement and
to consummate the transactions contemplated hereby. The execution,  delivery and
performance  of  this  Agreement  and  the   consummation  of  the  transactions
contemplated hereby have been duly authorized and approved by Company's Board of
Directors,  and no other  corporate  action is  necessary on the part of Company
except for the requisite  approval by Company's  stockholders.  Under applicable
law and the Company's  charter  documents,  the vote of the  stockholders of the
Company  who will have  executed  and  delivered  to Parent as of the  Closing a
Stockholders Agreement is sufficient for all corporate purposes to authorize the
Merger, this Agreement and the transactions  contemplated hereby. This Agreement
has been duly  executed and delivered by Company and  constitutes  the valid and
binding  obligations  of Company,  enforceable  in  accordance  with their terms
subject to Enforceability Exclusions.

                  (b)  Except  as set  forth  in  Section  3.4  of  the  Company
Disclosure  Letter  and  subject  only to the  approval  of the  Merger and this
Agreement by the Company's stockholders, the execution, delivery and performance
of this  Agreement  by Company  does not,  and, as of the  Effective  Time,  the
consummation of the  transactions  contemplated  hereby,  and compliance with or
fulfillment of the terms, conditions and provisions hereof, will not:

                           (i)  Conflict  with any  provision of the Articles of
Incorporation  or Bylaws of Company,  as amended,  or  Contract,  Authorization,
Court Order or Law applicable to Company or its properties or assets, other than
Conflicts which would not have a Material Adverse Effect on the Company; or

                           (ii) require the  Authorization  of, or registration,
declaration  or filing with, any  Governmental  Entity or any third party (so as
not to trigger any Conflict),  by or with respect to Company in connection  with
the  execution  and  delivery  of  this  Agreement  or the  consummation  of the
transactions  contemplated hereby,  except for (A) the filing of the Certificate
of Merger  and  Articles  of Merger  with the  Delaware  Secretary  of State and
Maryland State  Department of Assessments and Taxation,  respectively,  (B) such
Authorizations, registrations, declarations and filings as may be required under
applicable  federal  and  state  securities  laws,  (C) such  filings  as may be
required  under the  Hart-Scott-Rodino  Antitrust  Improvements  Act of 1976, as
amended  (the  "HSR  Act"),  (D)  such  other   Authorizations,   registrations,
declarations and filings which if not obtained or made would not have a material
adverse  effect on the ability of the  Company to  consummate  the  transactions
contemplated  hereby,  and (E) such  Authorizations,  filings and  registrations
which are set forth on Section 3.4 of the Company Disclosure Letter.

         III.5  Financial  Statements.  Section  3.5 of the  Company  Disclosure
Letter sets forth Company's  audited balance sheet as of December 31, 1997, 1996
and 1995 and the related audited  statements of operations and cash flow for the
twelve-month  periods  then  ended,  Company's  unaudited  balance  sheet  as of
February 28, 1998 (the "Balance Sheet") and the related unaudited  statements of
operations  for  the  two-month  period  then  ended   (collectively,   "Company
Financials").  The Company Financials have been prepared in accordance with GAAP
applied on a basis  consistent  throughout the periods  indicated and consistent
with each other (except that the unaudited interim  financial  statements do not
contain  all of the  required  footnotes  and are  subject  to normal  recurring
year-end adjustments, which adjustments will not, to the Company's Knowledge, be
material  in amount or effect  when taken as a whole).  The  Company  Financials
present  fairly the financial  condition and operating  results of Company as of
the dates and during the periods indicated  therein,  subject to normal year-end
adjustments,  which will not, to the Company's Knowledge,  be material in amount
when taken as a whole.

         III.6 No Undisclosed  Liabilities.  Except for obligations  incurred in
the ordinary  course of business  which are not material and not required  under
GAAP to be set forth or reflected on a balance  sheet or the notes  thereto,  to
its Knowledge, the Company does not have any Liability which, individually or in
the aggregate,  (i) has not been reflected in the Balance Sheet, or (ii) has not
been specifically and in reasonable detail described in this Agreement or in the
Company  Disclosure  Letter,  or (iii) has not arisen in the ordinary  course of
Company's business since the Balance Sheet date.
<PAGE>

         III.7  No Changes.  Since the date of the Balance Sheet,  there has not
been, occurred or arisen any:

                  (a) transaction (including  acquisition,  sale, lease, license
or other  disposal  of any  assets or  properties  of  Company)  by,  or, to the
Company's  Knowledge,  Liability of,  Company  except in the ordinary  course of
business  as  conducted  on  that  date  and  consistent  with  past  practices;

                  (b) capital expenditure or commitment by Company for a capital
expenditure, either individually or in the aggregate, exceeding $75,000;

                  (c) labor trouble,  other than routine individual  grievances,
or claim of wrongful  discharge of which the Company has received written notice
or of which the Company is aware or other unlawful labor practice or action;

                  (d) change in accounting methods or practices by Company;

                  (e)  revaluation  by Company  of any of its assets  other than
depreciation as required by GAAP and reflected on the unaudited balance sheet of
February 28, 1998;

                  (f)  declaration,  setting  aside or payment of a dividend  or
other  distribution with respect to the capital stock of Company,  or any direct
or indirect  redemption,  purchase or other acquisition by Company of any of its
capital stock (or options, warrants or other rights exercisable therefor);

                  (g) destruction of or damage to any material  assets,  or loss
of any  business or customer  of Company  (whether or not covered by  insurance)
which has had or could  reasonably be expected to have a Material Adverse Effect
on Company;

                  (h) increase in the salary or other compensation payable or to
become payable by Company to any of its directors, employees or advisors, or the
declaration, payment or commitment or obligation of any kind for the payment, by
Company,  of a bonus or other  additional  salary  or  compensation  to any such
person (except as otherwise  contemplated by this Agreement),  other than normal
course of business salary increases in connection with ongoing annual reviews or
promotions and consistent  with past practices (none of which exceeds 10% of the
previous year's salary);

                  (i)  signing,   material   amendment,   failure  to  renew  or
termination of any material Contract  (including without limitation licenses and
insurance  policies),  except in the ordinary course of business as conducted on
that  date  and  consistent  with  past  practices  or as  contemplated  by this
Agreement.

                  (j) loan by Company to any Person (other than expense advances
to employees, all of which are immaterial in amount and are issued in the normal
course  of  business  and  consistent   with  past   practices),   incurring  or
guaranteeing  by  Company  of any  indebtedness  other  than  trade  debt in the
ordinary course of business consistent with past practices,  issuance or sale of
any debt securities of Company or guaranteeing of any debt securities of others;

                  (k) waiver, release, discharge,  settlement or satisfaction of
any material  right of Company,  including any write down of value of inventory,
write-off of notes or accounts  receivables  or other  compromise of any account
receivable  of  Company,  other  than in the  ordinary  course of  business  and
consistent with past practices and those contemplated by this Agreement;

                  (l)  commencement,  notice  or,  to the  Company's  Knowledge,
threat of commencement of any lawsuit or proceeding  against or investigation of
Company or its affairs;

                  (m)  notice  of any  claim of  ownership  by a third  party of
Company's  Intellectual  Property  or of  infringement  by  Company of any third
party's Intellectual Property;
<PAGE>

                  (n) issuance, authorization for issuance or sale by Company of
any of its shares of capital stock, or securities  exchangeable,  convertible or
exercisable therefor, or of any other securities in respect of, in lieu of or in
substitution  for shares of capital  stock of Company,  except for  issuances or
sales as a result of  exercises  of  outstanding  stock  options  granted  under
Company's 1996 Stock Plan or other rights previously  granted to purchase shares
of Company  Capital  Stock,  provided that such options and other rights and the
related  exercisability  rights  are  included  among  the  options  and  rights
specified  in  paragraph  3.2 above or  Section  3.2 of the  Company  Disclosure
Letter, or split, combination or reclassification of any of its capital stock;

                  (o) material  change in pricing or royalties set or charged by
Company or by persons who have licensed Intellectual Property to Company,  other
than  increases or decreases  based upon cost and volume changes in the ordinary
course of business and consistent with past practice;

                  (p) creation, voluntarily or involuntarily, of any Encumbrance
upon any of Company's assets or properties, except for Permitted Encumbrances;

                  (q) accelerated  collection of Company's accounts  receivable,
deferment  or  payment of  Company's  accounts  payable,  or  prepayment  of any
obligation,  other than in the ordinary course of business  consistent with past
practice;

                  (r) to the Company's Knowledge,  any event or condition of any
character  that has had or  could  be  reasonably  expected  to have a  Material
Adverse Effect on Company;

                  (s) amendments or changes to the Articles of  Incorporation or
Bylaws of Company, except as contemplated under this Agreement; or

                  (t) action which would allow Major  Stockholder to be released
from the  guarantees  or other  assurances  it gave  banks  in  connection  with
Company's  credit lines and debts,  or which would use  Company's  cash to repay
such debts,  other than in the ordinary course of business  consistent with past
practice.

                  (u)  negotiation  or  agreement  by Company  or any  employees
thereof to do any of the things  described in the preceding  clauses (a) through
(t) (other than negotiations with Parent and its  representatives  regarding the
transactions contemplated by this Agreement).

         III.8    Tax and Other Returns and Reports.

                  (a) Company has filed all  required  Returns and such  Returns
are true and correct in all material respects.

                  (b)  Company  has (i) paid  all  Taxes  due or has  adequately
reserved  for such  Taxes,  whether  or not  shown  on  Returns  (including  any
liabilities  resulting from delinquent tax payments or filings) on its Financial
Statements  in  accordance  with GAAP,  and (ii)  withheld  with  respect to its
employees  all  federal  and state  income  taxes,  FICA,  FUTA and other  Taxes
required to be withheld  other than any Taxes to be paid by such  employees as a
result of the receipt of consideration pursuant to Section 2.6.

                  (c) There is no Tax deficiency  outstanding,  assessed,  or to
the Company's Knowledge proposed,  against Company, nor has Company executed any
waiver  of any  statute  of  limitations  on or  extending  the  period  for the
assessment or collection of any Tax.

                  (d) To the Company's Knowledge,  no audit or other examination
of any Return of Company is presently in progress nor has Company been  notified
of any request for such an audit or other examination.

                  (e) Company does not have any material  Liabilities for unpaid
federal,  state,  local and foreign  Taxes due and payable as of the date of the
Balance  Sheet which have not been  accrued or  reserved  against on the Balance
Sheet in accordance with GAAP.

<PAGE>

                  (f) Company has provided to Parent or its legal counsel copies
of all  federal and state  income and all state sales and use Returns  filed for
fiscal years 1995, 1996 and 1997.

                  (g)  There  are no  Encumbrances  on  the  assets  of  Company
relating to or attributable to Taxes other than  Encumbrances  for Taxes not yet
due and payable.

                  (h) None of Company's  assets are treated as  "tax-exempt  use
property" within the meaning of Section 168(h) of the Code.

                  (i) As of the Effective Time,  there will not be any Contract,
plan or  arrangement  covering any employee or former  employee of Company that,
individually or collectively,  could give rise to the payment of any amount that
would not be deductible  pursuant to Section 280G of the Code as a result of the
transactions contemplated by this Agreement.

                  (j) Company has not filed any consent  agreement under Section
341(f) of the Code or agreed to have Section  341(f)(2) of the Code apply to any
disposition  of a subsection  (f) asset (as defined in Section  341(f)(4) of the
Code) owned by Company.

                  (k)  Company  is not a party to a tax  sharing  or  allocation
agreement nor does Company owe any amount under any such agreement.

                  (l)  Company is not,  and has not been at any time,  a "United
States  real  property  holding  corporation"  within  the  meaning  of  Section
897(c)(2) of the Code.

                  (m)  Company's  tax  basis  in  its  assets  for  purposes  of
determining its future  amortization,  depreciation and other federal income tax
deductions  is  accurately  reflected on Company's  tax books and records in all
material respects.

         III.9  Restrictions  on  Business  Activities.  There  is  no  Contract
(noncompete, license or otherwise) or Court Order to which Company is a party or
otherwise binding upon Company which has or reasonably could be expected to have
the effect of  materially  prohibiting  or impairing  any  business  practice of
Company,  any acquisition of property (tangible or intangible) by Company or the
conduct of business by Company. Without limiting the foregoing,  Company has not
entered into any agreement under which Company is restricted from manufacturing,
producing,  assembling,  selling, licensing or otherwise distributing any of its
products to any class of customers, in any geographic area, during any period of
time or in any segment of the market.

         III.10  Title  of  Properties;   Absence  of  Liens  and  Encumbrances;
Condition of Equipment.

                  (a) Company owns no real  property,  nor has it ever owned any
real property.  Section 3.10 of the Company  Disclosure Letter sets forth a list
of all real property currently leased or held and operated by Company.  All such
current  leases  are in full  force  and  effect,  are valid  and  effective  in
accordance with their respective terms, and there is not with respect to Company
and to the Knowledge of Company, with respect to any other party to such leases,
under any of such  leases,  any  existing  default or event of default (or event
which with notice or lapse of time, or both, would constitute a default), except
where  the lack of such  validity  or  effectiveness  or the  existence  of such
default or event of  default  would not have a  Material  Adverse  Effect on the
Company.

                  (b)  Company  has good and valid  title to, or, in the case of
leased properties and assets,  valid leasehold interests in, all of its tangible
non-real  property  and assets  used or held for use in its  business,  free and
clear of any  Encumbrances,  except as reflected in the Company  Financials  and
except for Permitted Encumbrances.  Such properties and assets are (i) listed on
Section 3.10 of the Company Disclosure Letter, except those which are terminable
by Company  without  penalty  on 90 days' or less  notice or which  provide  for
annual  payments  of less than  $50,000,  (ii)  adequate  for the conduct of the
business of Company as being conducted,  and (iii) in good operating  condition,
subject to normal wear and tear.
<PAGE>

         III.11  Intellectual Property.Property

                  (a) Company owns all right, title and interest in and to (free
and clear of any Encumbrances,  except as detailed in the Company Financials and
except for  Permitted  Encumbrances),  or is  licensed  or  otherwise  possesses
legally enforceable rights to use, and is not contractually obligated to pay any
compensation  to any third  party in respect  thereof,  except  pursuant to such
agreements  set  forth on,  or as  described  in,  Section  3.11 of the  Company
Disclosure  Letter,  the  Intellectual  Property that is used in the business of
Company as conducted as of the date hereof.

                  (b) Section 3.11 of the Company Disclosure Letter sets forth a
complete list of all (i) patents, trademarks,  registered copyrights, registered
maskworks,  trade  names and service  marks,  and any  applications  therefor in
respect of any of the foregoing,  included in the Company Intellectual Property,
and specifies,  where  applicable,  the jurisdictions in which each such Company
Intellectual  Property has been issued or registered or in which an  application
for such issuance and  registration  has been filed,  including the names of all
registered owners, (ii) material licenses, sublicenses and other Contracts as to
which  Company is a party and  pursuant to which  Company or any other person is
authorized by Company to use any of the  Intellectual  Property of Company.  All
registered patents, trademarks, service marks and copyrights held by Company are
valid and subsisting.  All such licenses,  sublicenses and Contracts are in full
force and effect, and Company is not in material violation thereof,  and, to the
Knowledge of Company, no party to any of such licenses, sublicenses or Contracts
is in material  violation  thereof.  The execution,  delivery and performance of
this Agreement by Company, and the consummation of the transactions contemplated
hereby, will not (i) entitle any other party to any such license,  sublicense or
Contract to terminate or modify such license,  sublicense  or Contract,  or (ii)
require  Company to repay any funds  already  received by it from a third party.

                  (c) No claims with respect to Company's  Intellectual Property
have been asserted  against the Company,  or, to the  Knowledge of Company,  its
customers  in  connection  with  Company's  Intellectual  Property,  nor, to the
Knowledge  of the  Company,  are  threatened  against  the  Company,  or, to the
Company's  Knowledge,  its customers in connection  with Company's  Intellectual
Property,  by any Person,  nor, to the Company's  Knowledge,  is there any valid
grounds for any bona fide claims (i) to the effect that the  manufacture,  sale,
licensing or use of any of the products of Company as now manufactured,  sold or
licensed or used,  infringes  on any  Intellectual  Property of any third party,
(ii) against the use by Company of any  Intellectual  Property used in Company's
business as conducted by Company as of the date hereof, or (iii) challenging the
ownership by Company, validity or effectiveness of any of Company's Intellectual
Property.  To the Company's  Knowledge,  there is no material  unauthorized use,
infringement or misappropriation of any Company  Intellectual  Property owned or
exclusively  licensed by the Company by any third party,  including any employee
or former employee of Company.

                  (d)  Each  current  and  former   employee,   consultant   and
contractor of Company who has, or has had,  access to the  Company's  technology
has executed a proprietary information, invention assignment and confidentiality
agreement  substantially in the Company's  standard forms, and, to the Company's
Knowledge,  such  agreements  are  enforceable  against the  executing  party in
accordance with their terms subject to Enforceability Exclusions.

         III.12  Contracts.  The Company does not have, is not a party to nor is
it bound by:

                           (i)   any  Contract or  arrangement that contains any
severance pay or post-employment Liabilities other than as contemplated herein;

                           (ii)  any  bonus,  deferred  compensation,   pension,
profit  sharing or  retirement  plans,  or any other  employee  benefit plans or
arrangements;

                           (iii) any  employment,  sales or consulting  Contract
other than as contemplated herein;

                           (iv)  any  agreement  or  plan,  including,   without
limitation,  any stock  option  plan,  stock  appreciation  rights plan or stock
purchase plan, any of the benefits of which will be increased, or the vesting of
benefits  of  which  will  be  accelerated,  by  the  occurrence  of  any of the
transactions contemplated by this Agreement, or the value of any of the benefits
of which will be calculated on the basis of any of the transactions contemplated
by this Agreement, except as provided herein;

<PAGE>

                           (v) any fidelity or surety bond or completion bond;

                           (vi) any  Contract  of  indemnification  or  guaranty
other  than  in the  ordinary  course  of  business  and  consistent  with  past
practices;

                           (vii) any Contract  relating to capital  expenditures
and involving future payments in the aggregate in excess of $75,000,

                           (viii) any Contract  relating to the  disposition  or
acquisition  of  assets  or any  interest  in any  business  enterprise,  or any
construction contracts, outside the ordinary course of Company's business;

                           (ix)  any  material   Contract  to  grant  rights  to
manufacture, produce, assemble, license, market or sell its products;

                           (x)  any  mortgages,   indentures,  loans  or  credit
Contracts,  security Contracts or other Contracts or instruments relating to the
borrowing of money or extension of credit, including guaranties;

                           (xi) any purchase  order or contract for the purchase
of raw materials involving $75,000 or more, other than purchases in the ordinary
course of business,

                           (xii) any manufacturing,  distribution,  marketing or
development Contract, or

                           (xiii) any other Contract that: (A) involves  $75,000
or more,  (B) is not  cancelable  without  penalty within thirty days, or (C) is
outside the ordinary course of business and is material to Company.

To the Company's  Knowledge,  each Contract set forth on the Company  Disclosure
Letter is in full force and effect and is not  subject to any  material  default
thereunder by any party obligated to Company pursuant  thereto.  Company has not
breached,  violated or defaulted under, or received notice that it has breached,
violated or defaulted  under,  any of the material  terms or  conditions  of any
Contract.  A complete and correct copy of each  Contract,  as amended,  has been
delivered to Parent. Company has obtained, or will obtain prior to the Effective
Time, all  Authorizations as are required in connection with the Merger,  except
where the  failure to obtain any such  Authorizations  would not have a Material
Adverse Effect on the Company.

         III.13 Business Partners. Section 3.13 of the Company Disclosure Letter
lists (i)  customers  of Company  during the year ended  December  31,  1997 who
purchased in excess of $100,000, and specifies the aggregate amounts invoiced to
the customer in the year, (ii) suppliers from which Company  purchased in excess
of  $100,000  for the year  ended  December  31,  1997,  and (iii) the names and
addresses of all banks and other financial  institutions at which Company has an
account,  deposit  or safe  deposit  box,  together  with a list of names of all
persons  authorized  to draw on such  accounts  or deposits or to have access to
such boxes.  Company has not received any  communication  indicating that any of
its  customers or suppliers in such fiscal year intends to cease doing  business
with  Company or  materially  alter the  amount of  business  that it  currently
conducts with Company or the nature of its relationship with Company.

         III.14 Interested Party Transactions.  No officer,  director or, to the
Company's  Knowledge,  stockholder of Company (nor, to the Company's  Knowledge,
any  ancestor,  sibling,  descendant  or spouse of any of such  Persons,  or any
trust, partnership or corporation in which any of such persons has an interest),
has,  directly or  indirectly,  an interest in any Contract set forth in Section
3.12 of the Company  Disclosure Letter;  provided,  that passive ownership of no
more than five percent (5%) of the outstanding  stock of a corporation that is a
party to any such Contract shall not be deemed an "interest in any Contract" for
purposes of this Section 3.14.
<PAGE>

         III.15  Authorizations.  Section 3.15 of the Company  Disclosure Letter
accurately lists each material Authorization issued to Company by a Governmental
Entity or otherwise.  Those  Authorizations are all the Authorizations  required
for the operation of Company's  business as conducted as of the date hereof,  or
the holding of interests in any of its properties.  All such  Authorizations are
in full force and effect and Company has performed all its material  obligations
under each such Authorization. To the Company's Knowledge, no event has occurred
or  condition or state of facts  exists  which  constitutes  or, after notice or
lapse of time or both,  would  constitute  a breach or default  under,  or which
would allow  revocation or termination of, any  Authorization,  except where the
breach,  default,  revocation or termination of any such Authorization would not
have a Material  Adverse Effect on the Company.  Company has not received notice
of cancellation,  default or any material dispute  concerning any Authorization.
No filing by Company or Authorization of any Governmental Entity or otherwise on
Company's  behalf,  is  required  to  secure  the  continued  validity  of  such
Authorizations after the Closing.

         III.16 Litigation. There is no lawsuit, action, suit, claim, or, to the
Knowledge  of  Company,  investigation  by or before  any court or  Governmental
Entity,  or proceeding of any nature (including with respect to the transactions
contemplated by this Agreement),  pending or to Company's  Knowledge  threatened
against  Company,  its  properties  or any of its officers or directors in their
capacities  as agents of Company  (with  respect to the  operations  of Company)
which,  separately or in the aggregate,  has had or could reasonably be expected
to have a Material Adverse Effect on Company,  nor, to the Knowledge of Company,
is there any basis therefor.  No Governmental  Entity has at any time challenged
or questioned  the legal right of Company to  manufacture,  offer or sell any of
its products in the present manner or style thereof which,  separately or in the
aggregate,  has had or could  reasonably be expected to have a Material  Adverse
Effect on Company.

         III.17 Environmental Matters.

                  (a)  Hazardous  Material.  Company does not own or operate and
has never owned or operated  any  underground  storage  tanks.  No amount of any
substance that has been designated by any  Governmental  Entity or by applicable
federal,  state or local law to be radioactive,  toxic, hazardous or otherwise a
danger  to health  or the  environment,  including,  without  limitation,  PCBs,
asbestos,  petroleum,  urea-formaldehyde  and all substances listed as hazardous
substances pursuant to the Comprehensive  Environmental Response,  Compensation,
and Liability Act of 1980, as amended,  or defined as a hazardous waste pursuant
to the United States Resource Conservation and Recovery Act of 1976, as amended,
and the regulations promulgated pursuant to said laws, (a "Hazardous Material"),
but excluding office and janitorial  supplies,  are present,  as a result of the
deliberate actions of Company,  or, to Company's  Knowledge,  as a result of any
actions of any third party or otherwise, in, on or under any property, including
the land and the  improvements,  ground water and surface  water  thereof,  that
Company has at any time owned, operated, occupied or leased.

                  (b)   Hazardous   Materials   Activities.   Company   has  not
transported,  stored, used,  manufactured,  disposed of, released or exposed its
employees or others to Hazardous Materials in violation of any applicable law in
effect on or before the Closing Date, nor has Company disposed of,  transported,
sold, or manufactured any product containing a Hazardous Material  (collectively
"Hazardous   Materials   Activities")  in  violation  of  any  applicable  rule,
regulation,  treaty or statute  promulgated by any Governmental Entity in effect
prior to or as of the date hereof to  prohibit,  regulate  or control  Hazardous
Materials or any Hazardous Material Activity.

                  (c)  Permits.   Company   currently  holds  all  environmental
approvals,   permits,  licenses,  and  consents  (the  "Environmental  Permits")
required for the conduct of Company's  Hazardous  Material  Activities and other
businesses of Company as such  activities  and  businesses  are currently  being
conducted.

                  (d) Environmental Liabilities. No material action, proceeding,
revocation  proceeding,  amendment  procedure,  writ,  injunction  or  claim  is
pending,  or to Company's  Knowledge,  threatened  concerning any  Environmental
Permit, Hazardous Material or any Hazardous Materials Activity of Company.

                  (e) Capital Expenditures. Company is not aware of any material
capital  expenditures  which  are  required  in  order  for  it to  comply  with
Environmental Laws.
<PAGE>

         III.18  Brokers' and Finders' Fees; Third Party Expenses.  Section 3.18
of the Company  Disclosure  Letter sets forth any Liability Company has incurred
directly or indirectly for brokerage or finders' fees or agents'  commissions or
any similar  charges,  and a  reasonable  estimate  of all Third Party  Expenses
expected to be  incurred by Company,  in  connection  with the  negotiation  and
effectuation  of this  Agreement and the  transactions  contemplated  hereby.  A
complete and accurate copy of any engagement letter, contract,  and/or agreement
referred to in Section 3.18 of the Company  Disclosure  Letter has been provided
to Parent,  including,  without  limitation,  the engagement  letter between the
Company and Broadview Associates LLC ("Broadview") dated as of November 24, 1997
(the "Broadview Letter").

         III.19  Employee Benefit Plans. For purposes of this Subsection only:

                  "Affiliate"  means any other  person  or entity  under  common
control  with  Company  within the  meaning  of Section  414 of the Code and the
regulations thereunder.

                  "Company Employee Plan" refers to any plan,  program,  policy,
practice,  contract,  agreement or other arrangement providing for compensation,
severance,  termination pay, performance awards, stock or stock-related  awards,
fringe benefits or other employee benefits or remuneration of any kind,  whether
formal or  informal,  funded or unfunded  and  whether or not  legally  binding,
including without  limitation,  each "employee benefit plan", within the meaning
of Section  3(3) of ERISA which is or has been  maintained,  contributed  to, or
required to be  contributed  to, by Company or any  Affiliate for the benefit of
any Employee, and pursuant to which Company or any Affiliate has or may have any
material liability, contingent or otherwise.

                  "DOL" means the United States Department of Labor.

                  "Employee"  means any current,  former,  or retired  employee,
officer, or director of Company or any Affiliate.

                  "Employee  Agreement"  refers to each management,  employment,
severance,  consulting or similar  Contract between Company or any Affiliate and
any  Employee  pursuant to which  Company or any  Affiliate  has or may have any
material Liability, contingent or otherwise.

                  (a) Schedule.  Section 3.19 of the Company  Disclosure  Letter
contains an accurate and complete  list of each Company  Employee  Plan and each
Employee  Agreement.  Company  does not have  any  plan or  commitment,  whether
legally  binding or not, to establish any new Company  Employee Plan or Employee
Agreement,  to modify any Company Employee Plan or Employee Agreement (except to
the extent  required  by law or to conform  any such  Company  Employee  Plan or
Employee  Agreement to the  requirements  of any applicable law, in each case as
previously disclosed to Parent in writing, or as required by this Agreement), or
to enter into any Company Employee Plan or Employee Agreement,  nor does it have
any intention or commitment to do any of the foregoing.

                  (b) Documents. Company has provided to Parent, where available
or  applicable,  (i) correct and complete  copies of all documents  embodying or
relating to each Company Employee Plan and each Employee Agreement including all
amendments  thereto and written  interpretations  thereof;  (ii) the most recent
annual actuarial  valuations,  if any,  prepared for each Company Employee Plan;
(iii)  the two  most  recent  annual  reports  (Series  5500  and all  schedules
thereto),  if any, required under ERISA in connection with each Company Employee
Plan or related  trust;  (iv) if the Company  Employee Plan is funded,  the most
recent annual and periodic  accounting of Company Employee Plan assets;  (v) the
most recent  summary plan  description  together with the most recent summary of
material  modifications,  if any,  required  under  ERISA  with  respect to each
Company Employee Plan; (vi) all IRS  determination  letters and rulings relating
to Company Employee Plans and copies of all applications and  correspondence  to
or from the IRS or DOL with respect to any Company Employee Plan with respect to
any matter as to which Company has or may have material Liability; and (vii) all
communications  material to any  Employee or  Employees  relating to any Company
Employee Plan and any proposed Company Employee Plans, in each case, relating to
any  amendments,  terminations,   establishments,   increases  or  decreases  in
benefits,  acceleration  of payments or vesting  schedules or other events which
would result in any material liability to the Company.
<PAGE>

                  (c) Employee Plan Compliance. (i) Company has performed in all
material  respects  all  obligations  required to be  performed by it under each
Company  Employee Plan and each Company  Employee Plan has been  established and
maintained in all material respects in accordance with its terms and in material
compliance with all applicable laws,  statutes,  orders,  rules and regulations,
including but not limited to ERISA or the Code;  (ii) no non-exempt  "prohibited
transaction",  within the meaning of Section  4975 of the Code or Section 406 of
ERISA,  has occurred with respect to any Company  Employee Plan; (iii) there are
no actions, suits or claims pending, or, to the Knowledge of Company, threatened
or  anticipated  (other than routine  claims for  benefits)  against any Company
Employee Plan or against the assets of any Company  Employee Plan; and (iv) each
Company Employee Plan can be amended, terminated or otherwise discontinued after
the Effective Time in accordance with its terms,  without  liability to Company,
Parent or any of its  Affiliates  (other than ordinary  administration  expenses
typically  incurred  in a  termination  event);  (v) there are no  inquiries  or
proceedings  pending  or,  to  the  Knowledge  of  Company  or  any  affiliates,
threatened by the IRS or DOL with respect to any Company Employee Plan; and (vi)
neither  Company nor any Affiliate is subject to any penalty or tax with respect
to any  Company  Employee  Plan under  Section  502(i) of ERISA or Section  4975
through 4980 of the Code.

                  (d)  Pension  Plans.  Company  does not now,  nor has it ever,
maintained,  established,  sponsored,  participated  in, or contributed  to, any
Pension Plan which is subject to Part 3 of Subtitle B of Title I of ERISA, Title
IV of ERISA or Section 412 of the Code.

                  (e) Multiemployer Plans. At no time has Company contributed to
or been requested to contribute to any Multiemployer Plan.

                  (f) No Post-Employment  Obligations.  No Company Employee Plan
or Employee Agreement provides, or has any liability to provide, life insurance,
medical or other employee benefits to any Employee upon his or her retirement or
termination of employment for any reason,  except as may be required by statute,
and Company has never  represented,  promised or contracted  (whether in oral or
written form) to any Employee  (either  individually or to Employees as a group)
that such  Employee(s)  would be provided with life insurance,  medical or other
employee  welfare  benefits upon their  retirement or termination of employment,
except to the extent required by statute.

                  (g) Effect of  Transaction.  Except as provided in Section 2.6
of this Agreement,  the execution of this Agreement and the  consummation of the
transactions  contemplated  hereby will not (either alone or upon the occurrence
of any  additional or subsequent  events)  constitute an event under any Company
Employee Plan, Employee Agreement,  trust or loan that will or may result in any
payment  (whether of severance pay or otherwise),  acceleration,  forgiveness of
indebtedness,  vesting, distribution, increase in benefits or obligation to fund
benefits with respect to any Employee.

                  (h) Employment Matters.

                           (i)  Section  3.19 of the Company  Disclosure  Letter
lists the names, positions and current salaries or wage rates (or other terms of
compensation) of all current  Employees,  including fringe benefits that are not
made  available  to Employees  generally,  and all current  employee  handbooks,
brochures  or  booklets  setting  forth the  employment  policies  or  practices
applicable to Employees.  To the Company's Knowledge,  all individuals providing
services  as  independent  contractors  or  consultants  to  Company  qualify as
independent  contractors or consultants for purposes of federal and state income
and employment tax laws and all other applicable employment related laws.

                           (ii) Company is not a party to any (i) labor contract
relating to any Employee,  or (ii) written or unwritten  employment Contract for
the current provision of individual  consulting  services or Contract  involving
direct or indirect compensation or severance of any Employee.  All Employees are
terminable at will without payment by, or liability of, Company.  The Company is
not in material default of any obligation to any Employee.

                           (iii) To the Company's Knowledge,  its relations with
its employees are satisfactory.  No union or similar organization represents the
Employees and, to Company's  Knowledge,  no such  organization  is attempting to
organize such employees.

                           (iv) No director or Employee of Company is a party to
any  employment or other  agreement that entitles him or her to terminate his or
her  relationship  with Company upon the acquisition by any Person of control of
Company.
<PAGE>

                           (v) The execution,  delivery and  performance of this
Agreement and the consummation of the transactions  contemplated hereby will not
result in any  benefit or payment  (including,  without  limitation,  severance,
unemployment compensation, golden parachute, bonus or otherwise) becoming due to
any current or former  director,  officer or Employee of the Company,  except as
expressly set forth herein.

                           (vi)  Company (i) is in  compliance  in all  material
respects  with all  applicable  federal  and state laws,  rules and  regulations
respecting employment,  employment practices, terms and conditions of employment
and wages and hours, in each case, with respect to Employees;  (ii) has withheld
all amounts  required  by law or by  agreement  to be  withheld  from the wages,
salaries  and other  payments  to  Employees  (other than  amounts  which may be
required to be withheld as a result of an  Employee's  receipt of  consideration
pursuant  to Section  2.6);  (iii) is not liable for any arrears of wages or any
taxes or any penalty for failure to comply with any of the  foregoing;  and (iv)
is not liable for any payment to any trust or other fund or to any  governmental
or administrative authority, with respect to unemployment compensation benefits,
social  security or other  benefits or  obligations  for  Employees  (other than
routine payments to be made in the normal course of business and consistent with
past practice).

                  (i) Labor. No work stoppage or labor strike against Company is
pending or, to the Knowledge of Company,  threatened or reasonably  anticipated.
Company is not involved in or, to the Knowledge of Company, threatened with, any
labor  dispute,   grievance,   or  litigation   relating  to  labor,  safety  or
discrimination  matters involving any Employee,  including,  without limitation,
charges of unfair  labor  practices  or  discrimination  complaints,  which,  if
adversely  determined,  would,  individually  or in  the  aggregate,  result  in
material  liability to Company.  Neither Company nor any of its subsidiaries has
engaged in any unfair labor  practices  within the meaning of the National Labor
Relations  Act  which  would,  individually  or in the  aggregate,  directly  or
indirectly result in a material liability to Company.  Company is not presently,
nor has it been in the past, a party to, or bound by, any collective  bargaining
agreement  or  union  contract  with  respect  to  Employees  and no  collective
bargaining agreement is being negotiated by the Company.

         III.20 Insurance.  Section 3.20 of the Company  Disclosure Letter lists
all  insurance  policies  and  fidelity  bonds  covering  the assets,  business,
equipment, properties, operations, employees, officers and directors of Company.
The Company believes that such policies of insurance are commercially reasonable
for a company  of its kind.  There is no claim by Company  pending  under any of
such  policies  or bonds as to which  coverage  has been  questioned,  denied or
disputed by the  underwriters  of such  policies or bonds.  All premiums due and
payable on or before the date hereof under all such policies and bonds have been
paid,  and will be paid as of the Closing,  and Company is otherwise in material
compliance  with the terms of such  policies  and bonds (or other  policies  and
bonds  providing   substantially  similar  insurance  coverage).   To  Company's
Knowledge,  there is no threatened  termination of, or material premium increase
with respect to, any of such policies.

         III.21  Compliance  with Laws.  Company has  complied  with,  is not in
violation of, and has not received any notices of violation  with respect to its
Articles of Incorporation and Bylaws,  as amended,  or any Law or Court Order by
which Company is bound or to which Company or its properties are subject, except
for violations that have not had,  individually or in the aggregate,  a Material
Adverse Effect on the Company.

         III.22  Warranties.  Company has no Liability for replacement or repair
of, or, to the  Knowledge of Company,  other  damages in  connection  with,  any
product  manufactured,  sold,  leased or delivered by Company except for product
warranty claims reserved on the Balance Sheet. No such product is subject to any
guaranty,  warranty, or other indemnity beyond the applicable standard terms and
conditions of sale or lease.

         III.23  Complete  Copies of  Materials.  Company has  delivered or made
available true and complete  copies of each document (or summaries of same) that
has been requested by Parent or its counsel.


<PAGE>

         III.24 Representations Complete.

                  (a) None of the  representations or warranties made by Company
(as modified by the Company  Disclosure Letter hereunder,  as updated),  nor any
statement  made in the Company  Disclosure  Letter or  certificate  furnished by
Company  pursuant to this  Agreement,  or  furnished  in or in  connection  with
documents  mailed or delivered to the stockholders of Company in connection with
soliciting  their  consent to this  Agreement  and the Merger,  contains or will
contain at the Closing Date,  any untrue  statement of a material fact, or omits
or will omit at the Closing Date to state any material  fact  necessary in order
to make  the  statements  contained  herein  or  therein,  in the  light  of the
circumstances  under which made,  not  misleading,  except for changes after the
date hereof in conformity with the covenants and agreements contained herein and
those  changes  permitted by the terms of this  Agreement and except for changes
occurring in the ordinary  course of business which do not,  individually  or in
the aggregate, result in a Material Adverse Effect on the Company.

                  (b) The Company  shall be  permitted  to provide to Parent and
Sub an update, as of the Closing Date, of the Company  Disclosure  Letter.  Such
Company  Disclosure Letter as updated shall be incorporated  herein by reference
with the same force and effect as the Company Disclosure Letter delivered at the
time of the execution and delivery of this Agreement.

                           (i) If the  update to the Company  Disclosure  Letter
delivered on the Closing Date includes information relating to changes regarding
the Company or its business,  assets or properties  that were made in conformity
with the covenants and agreements contained in this Agreement, or were permitted
by the terms of this  Agreement,  or relate to facts or  situations  that  arose
prior to the date of this  Agreement  but of which Parent or Sub had  Knowledge,
then Parent and Sub shall  consummate  the Merger,  and Parent and Sub shall not
have the  right to make any  claim  against  the  Company  or any  holder of the
Company Capital Stock under Article VIII hereof or otherwise as a result of such
information included in the update to the Company Disclosure Letter.

                           (ii) If the update to the Company  Disclosure  Letter
delivered  on the  Closing  Date  includes  information  relating  to  facts  or
situations that arose after the date of this Agreement, then (A) if such updated
information has not had or is not reasonably expected to have a Material Adverse
Effect on the Company,  then Parent and Sub shall consummate the Merger,  or (B)
if such updated information has had or is reasonably expected to have a Material
Adverse  Effect on  Company,  then  Parent  and Sub shall have the option not to
consummate the Merger.  In either case, if Parent and Sub consummate the Merger,
Parent and Sub shall not have the right to make any claim against the Company or
any holder of the Company  Capital  Stock under Article VIII hereof or otherwise
as a result of such information included in the update to the Company Disclosure
Letter.

                           (iii) If the update to the Company  Disclosure Letter
delivered  on the  Closing  Date  includes  information  relating  to  facts  or
situations  that arose prior to the date of this  Agreement  but of which Parent
and Sub did not have Knowledge,  (A) if such updated  information has not had or
is not  reasonably  expected to have a Material  Adverse  Effect on the Company,
then  Parent  and Sub  shall  consummate  the  Merger,  or (B) if  such  updated
information has had or is reasonably  expected to have a Material Adverse Effect
on  Company,  then  Parent and Sub shall have the option not to  consummate  the
Merger. In either case, if Parent and Sub consummate the Merger,  Parent and Sub
shall have the right to make a claim  against  the Company and any holder of the
Company Capital Stock under Article VIII hereof or otherwise as a result of such
information  included in the update to the Company  Disclosure Letter. Any claim
made by Parent  or Sub with  respect  hereto  shall be  subject  to the terms of
Article VIII of this Agreement, including Section 8.2(a) hereof.

         III.25  No  Other   Representations  or  Warranties.   Except  for  the
representations  and  warranties  contained  in this  Article  III,  neither the
Company nor any other person makes any  representation  or warranty to Parent or
to Sub, either express or implied,  at law or in equity,  and the Company hereby
disclaims any such other  representation or warranty,  whether by the Company or
any of its agents or  representatives or any other person,  notwithstanding  the
delivery or disclosure to Parent or to Sub or any of their officers,  directors,
employees,  agents or  representatives  or any other  person of any  document or
other information by the Company or any of its agents or  representatives or any
other person.


                                   ARTICLE IV

                REPRESENTATIONS AND WARRANTIES OF PARENT AND SUB

         Parent and Sub represent and warrant to Company and the stockholders of
the Company as follows:
<PAGE>

         IV.1  Organization.  Each  of  Parent  and  Sub is a  corporation  duly
organized,  validly existing and in good standing under the laws of the State of
Delaware.  Each of Parent and Sub has the corporate  power to own its properties
and to carry on its business as now being  conducted.  Each of Parent and Sub is
duly  qualified to do business and is in good standing in each  jurisdiction  in
which the failure to be so  qualified  would have a Material  Adverse  Effect on
Parent  or on the  ability  of Parent  and Sub to  consummate  the  transactions
contemplated hereby.

         IV.2  Authority;  Conflicts.  Each of Parent and Sub has all  requisite
corporate power and authority to execute, deliver and perform this Agreement and
the  Ancillary  Agreements  to  which  it  is a  party  and  to  consummate  the
transactions  contemplated  hereby and  thereby.  The  execution,  delivery  and
performance  of this  Agreement  and the  Ancillary  Agreements to which it is a
party and the consummation of the transactions  contemplated  hereby and thereby
have been duly authorized and approved by Parent's and Sub's Board of Directors,
and no other corporate  action is necessary on the part of either Parent or Sub.
This Agreement has been, and the Ancillary Agreements will be, duly executed and
delivered by Parent and Sub and constitutes,  and will constitute, the valid and
binding obligation of Parent and Sub, enforceable in accordance with their terms
subject to Enforceability Exclusions. The execution, delivery and performance of
this  Agreement and the  Ancillary  Agreements to which it is a party by each of
Parent and Sub does not, and, as of the Effective Time, the  consummation of the
transactions contemplated hereby and thereby, and compliance with or fulfillment
of the terms, conditions and provisions hereof and thereof, will not:

                           (i) Conflict with any provision of the Certificate of
Incorporation  or Bylaws,  as amended,  of either  Parent or Sub,  or  Contract,
Authorization,  Court Order or Law  applicable  to either Parent or Sub or their
respective  properties or assets,  other than  Conflicts  which would not have a
material adverse effect on the ability of either Parent or Sub to consummate the
transactions contemplated hereby; or

                           (ii)  require  any  Authorization,  or  registration,
declaration or filing with any Governmental Entity or any third party (so as not
to trigger any Conflict), by or with respect to Parent or Sub in connection with
the execution and delivery of this Agreement and the Ancillary Agreements or the
consummation of the transactions contemplated hereby and thereby, except for (A)
the filing of the Certificate of Merger and Articles of Merger with the Delaware
Secretary  of  State  and the  Maryland  State  Department  of  Assessments  and
Taxation, respectively, (B) such Authorizations, registrations, declarations and
filings as may be required under  applicable  state and federal  securities laws
and the laws of any foreign  country,  (C) such filings as may be required under
the HSR Act,  and (D)  such  other  Authorizations,  filings,  declarations  and
registrations  which if not  obtained or made would not have a material  adverse
effect  on  the  ability  of  Parent  or  Sub  to  consummate  the  transactions
contemplated hereby.

         IV.3 Merger Consideration.  Parent currently has available,  and at the
Effective Time of the Merger will continue to have available, sufficient cash to
enable it to perform its obligations under this Agreement.  The shares of Parent
Common  Stock to be issued  pursuant to the Merger,  when  issued,  will be duly
authorized,  validly issued,  fully paid and nonassessable and shall be free and
clear  of all  Encumbrances  other  than  transfer  restrictions  arising  under
securities laws.

         IV.4 SEC Documents; Parent Financial Statements.atements

                  (a) Parent has filed all required  reports and  amendments  to
previously  filed reports (the "Parent  Reports")  with the U.S.  Securities and
Exchange  Commission (the "SEC") under the Securities  Exchange Act of 1934 (the
"Exchange Act") since it first became a publicly-held  reporting company.  As of
their respective filing dates,  except to the extent corrected by a subsequently
filed document with the SEC, the Parent Reports  complied with the  requirements
of the  Exchange  Act,  and none of the  Parent  Reports  contained  any  untrue
statement of a material  fact or omitted to state a material fact required to be
stated therein or necessary to make the statements  made therein not misleading.
As of the  date  hereof,  Parent  has not  received  notice  from  the SEC  that
additional  filings  or  amendments  to  previously  filed  Parent  Reports  are
required.

<PAGE>

                  (b) The financial  statements  of Parent,  including the notes
thereto,  included in the Parent Reports (the "Parent Financial Statements") (i)
comply as to form with applicable accounting requirements and with the published
rules and regulations of the SEC with respect  thereto,  (ii) have been prepared
in accordance with GAAP consistently applied (subject,  in the case of unaudited
statements,  to normal recurring audit adjustments which, individually or in the
aggregate,  are  not  material),  and  (iii)  fairly  present  the  consolidated
financial  position  of  Parent  at the dates  thereof  and of its  consolidated
results of operations and cash flows for the periods then ended.  There has been
no change in Parent's  accounting  policies  except as described in the notes to
the Parent Financial  Statements.  Parent has no material Liabilities other than
those set forth in the previously filed Parent Financial  Statements,  as of the
respective dates of the Parent Financial Statements.

         IV.5 Information Supplied by Parent. The information supplied by Parent
to the Company  expressly for inclusion by Company in the  information  or proxy
statement  the  Company  will  send  to its  stockholders,  in  connection  with
Company's solicitation of written consents or stockholders meeting to be held to
vote upon the transactions  contemplated by this Agreement, does not contain any
untrue  statement of a material fact or omit any material  facts  required to be
stated therein or necessary to make the statements made therein not misleading.

         IV.6 Finders' Fees. There is no investment  banker,  broker,  finder or
other  intermediary  that has been retained by or is authorized to act on behalf
of Parent who would be entitled to any fee or commission  from Company or any of
its  Affiliates  upon  consummation  of the  transactions  contemplated  by this
Agreement.

         IV.7 Litigation.  There is no lawsuit,  action,  suit, claim or, to the
Knowledge of Parent or Sub, investigation by or before any court or Governmental
Entity,  or proceeding of any nature (including with respect to the transactions
contemplated by this Agreement),  pending or, to the Knowledge of Parent or Sub,
threatened against either Parent or Sub, their respective  properties or assets,
or any of their  respective  officers or directors in their capacities as agents
of Parent or Sub (with respect to the operations of Parent or Sub) which has had
or could  reasonably  be expected to have a Material  Adverse  Effect on Parent,
nor,  to the  Knowledge  of Parent  or Sub,  is there  any  basis  therefor.  No
Governmental  Entity has at any time challenged or questioned the legal right of
Parent or Sub to  manufacture,  offer or sell any of its products in the present
manner or style thereof which has had or could  reasonably be expected to have a
Material Adverse Effect on Parent.

         IV.8 Form S-3.  Parent is  currently  eligible to utilize  Form S-3 and
there is no material  nonpublic  information  (other than this  Agreement)  that
would preclude Parent from filing a registration statement on Form S-3.


                                    ARTICLE V

                       CONDUCT PRIOR TO THE EFFECTIVE TIME


         V.1 Conduct of Business of Company.  During the period from the date of
this  Agreement  and  continuing  until the earlier of the  termination  of this
Agreement  or the  Effective  Time,  Company  agrees  (except to the extent that
Parent  shall  otherwise  consent in  writing)  to carry on its  business in the
usual,  regular  and  ordinary  course  in  substantially  the  same  manner  as
heretofore  conducted,  to pay its  debts  and  Taxes  when due  unless  validly
withheld or contested in good faith,  to pay or perform other  obligations  when
due, and, to the extent consistent with such business and except as agreed to by
Parent  and  the  Company  in  writing,  use  commercially   reasonable  efforts
consistent with past practice and policies to preserve intact Company's  present
business  organization,  keep available the services of its present officers and
key  employees,  and  preserve  its  relationships  with  customers,  suppliers,
distributors, licensors, licensees, and others having business dealings with it,
with the goal of preserving unimpaired Company's goodwill and ongoing businesses
at the Effective Time. In particular,  Company shall not take any action outside
the  ordinary  course  of  business,  which  materially  increases  its  current
liabilities or materially  decreases its current assets.  Company shall promptly
notify  Parent of (i)  developments  to,  and  relating  actions  to be taken in
connection with, the matters described in Section 3.4 of the Company  Disclosure
Letter,  (ii) any event or occurrence or emergency not in the ordinary course of
business of Company,  and (iii) any event  having a Material  Adverse  Effect on
Company.  Without limiting the foregoing and except as expressly contemplated by
this Agreement,  Company shall not, without the prior written consent of Parent,
such consent not to be unreasonably withheld or delayed:

                  (a) Enter into any material Contract or transaction not in its
ordinary  course  of  business  and  consistent  with  past  practices,  or  any
commitment or transaction of the type described in Section 3.7 hereof;
<PAGE>

                  (b)   Transfer   to  any  Person   any  rights  to   Company's
Intellectual  Property (other than pursuant to end user or existing  licenses in
the ordinary course of business and consistent with past practices);

                  (c)  Acquire or agree to  acquire by merging or  consolidating
with, or by  purchasing a substantial  portion of the assets of, or by any other
manner,  any  business or any  corporation,  partnership,  association  or other
business  organization  or division  thereof,  or otherwise  acquire or agree to
acquire any assets which are material,  individually or in the aggregate, to the
business of Company;

                  (d) Make or change any material  election in respect of Taxes,
adopt or change  any  accounting  method in  respect  of Taxes,  enter  into any
closing  agreement,  settle any claim or  assessment  in  respect  of Taxes,  or
consent to any extension or waiver of the  limitation  period  applicable to any
claim or assessment in respect of Taxes; or

                  (e) Take, or agree in writing or otherwise to take, any of the
actions described in Sections 5.1(a) through (d) above, or any other action that
would  prevent  Company  from  performing  or cause  Company  not to perform its
covenants hereunder.

         V.2  No Solicitation.

                  (a) Until the  earlier  of the  Effective  Time or the date of
termination of this Agreement  pursuant to the provisions of Section 9.1 hereof,
Company will not (nor will Company permit any of Company's officers,  directors,
agents,  representatives  or affiliates to) directly or indirectly,  take any of
the following  actions with any party other than Parent and its  designees:  (i)
solicit,  entertain,  encourage,  initiate or  participate  in any  proposals of
others from, or conduct  discussions  with or engage in  negotiations  with, any
Person  relating to, (ii) provide  information  with respect to it to any Person
relating to, or otherwise cooperate with,  facilitate or encourage any effort or
attempt by any such Person with regard to,  (iii) enter into an  agreement  with
any  Person   providing   for,  or  (iv)  make  or  authorize   any   statement,
recommendation  or  solicitation  in support  of, any  possible  acquisition  of
Company  or any of its  subsidiaries  (whether  by merger,  purchase  of assets,
tender  offer or  otherwise),  or any material  portion of its or their  capital
stock  or  assets  or  any  equity  interest  in  the  Company  or  any  of  its
subsidiaries.

                  (b) If Company  receives  prior to the  Effective  Time or the
termination  of this  Agreement  any offer or  proposal  relating  to any of the
above,  Company will  immediately  (i) cease and cause to be terminated any such
contacts or negotiations,  (ii) notify Parent thereof,  including information as
to the  identity of the  offeror or the party  making any such offer or proposal
and the specific  terms of such offer or proposal,  as the case may be, and such
other information related thereto as Parent may reasonably request.

         V.3 Conduct of  Business of Parent.  During the period from the date of
this  Agreement  and  continuing  until the earlier of the  termination  of this
Agreement  or the  Effective  Time,  Parent  agrees  (except to the extent  that
Company  shall  otherwise  consent in writing)  to carry on its  business in the
usual,  regular  and  ordinary  course  in  substantially  the  same  manner  as
heretofore  conducted,  to pay its  debts  and  Taxes  when due  unless  validly
withheld or contested in good faith,  to pay or perform other  obligations  when
due, and, to the extent consistent with such business and except as agreed to by
Parent  and  the  Company  in  writing,  use  commercially   reasonable  efforts
consistent with past practice and policies to preserve  intact Parent's  present
business  organization,  keep available the services of its present officers and
key  employees,  and  preserve  its  relationships  with  customers,  suppliers,
distributors, licensors, licensees, and others having business dealings with it,
with the goal of preserving  unimpaired Parent's goodwill and ongoing businesses
at the Effective Time.  Parent shall promptly notify Company of (i) any event or
occurrence  or emergency not in the ordinary  course of business of Parent,  and
(ii) any event having a Material Adverse Effect on Parent.


                                   ARTICLE VI

                              ADDITIONAL AGREEMENTS

         VI.1 Ancillary Agreements. The following will take place simultaneously
with the execution of this Agreement unless otherwise expressly noted herein:
<PAGE>

                  (a) the  Stockholders  Agreement  shall be  executed as of the
Closing by the holders of shares representing at least two-thirds of the Company
Capital Stock.

                  (b) Major Stockholder,  Parent and Sub shall have entered into
an agreement to terminate or amend certain  contracts  between Major Stockholder
and Company regarding Company's Intellectual Property.

         VI.2 Company Stockholder Approval. As promptly as practicable after the
execution  of this  Agreement,  Company  shall  submit  this  Agreement  and the
transactions contemplated hereby (including, if required, amendment of Company's
Articles of  Incorporation)  to its  stockholders  for  approval and adoption as
provided by Maryland Law and its Articles of Incorporation  and Bylaws.  Company
shall use commercially  reasonable  efforts to solicit and obtain the consent of
its  stockholders  sufficient  to approve the Merger and this  Agreement  and to
enable the Closing to occur as promptly as practicable.  The materials submitted
to Company's stockholders shall include information regarding Company, the terms
of the  Merger  and  this  Agreement  and the  recommendation  of the  Board  of
Directors  of  Company  in favor of the  Merger  and this  Agreement,  provided,
however, that such recommendation need not be included, or may be withdrawn,  to
the extent that the Board of Directors of the Company deem it necessary to do so
in the exercise of its fiduciary  obligations to the holders of Company  Capital
Stock after being so advised by counsel.  The Company will send the materials to
be submitted to its  stockholders  to Parent for its review and comments  before
submitting them to the stockholders.

         VI.3  Access  to  Information.  Company  shall  afford  Parent  and its
accountants, counsel and other representatives,  reasonable access during normal
business hours upon  reasonable  notice during the period prior to the Effective
Time to (a) all of Company's properties,  Contracts, books and records (provided
that  any  such   access  by  Parent,   its   accountants,   counsel  and  other
representatives  shall not unreasonably  interfere with the conduct of Company's
business),  and (b) with the  consent of  Company,  which  consent  shall not be
unreasonably withheld, all other information concerning the business, properties
and personnel (subject to restrictions  imposed by applicable law) of Company as
Parent  may  reasonably  request.  Company  agrees to  provide to Parent and its
accountants,  counsel and other  representatives  copies of  internal  financial
statements promptly upon request.

         VI.4 HSR Filing.  Parent and Major  Stockholder  will use  commercially
reasonable  efforts to obtain the approval of any Governmental  Body,  including
timely filing with the Department of Justice and Federal Trade Commission, which
is  required  in order  to  consummate  the  transactions  contemplated  in this
Agreement.

         VI.5 Confidentiality.  Each of the parties hereto hereby agrees to keep
the terms of this Agreement (except to the extent contemplated  hereby) and such
information or knowledge  obtained in any investigation  pursuant to Section 6.3
hereof,  or pursuant to the  negotiation  and execution of this Agreement or the
effectuation of the transactions contemplated hereby, confidential in accordance
with the  terms of the  Mutual  Confidentiality  Agreement  executed  by each of
Parent and Company as of October 26, 1997.

         VI.6 Expenses.  (a) Whether or not the Merger is consummated,  all fees
and  expenses  incurred  in  connection  with  the  Merger  including,   without
limitation, all legal, accounting,  financial advisory, consulting and all other
fees and expenses of third parties ("Third Party Expenses")  incurred by a party
in connection with the negotiation and  effectuation of the terms and conditions
of this  Agreement  and  the  transactions  contemplated  hereby,  shall  be the
obligation of the  respective  party  incurring  such fees and expenses.  If the
Merger  is  consummated,  Parent  will  pay at the  Closing,  out of the  Merger
consideration,  any  amounts  due to  Broadview  pursuant  to the  terms  of the
Broadview  Letter and the legal and accounting fees and other "deal expenses" of
Company as set forth on the schedule  delivered to Parent  pursuant to paragraph
(b) below.  Deal  expenses  shall not include  filing fees paid by, or legal and
other expenses  incurred by, the Major  Stockholder  in connection  with filings
with the Department of Justice or the Federal Trade Commission.

<PAGE>
                  (b) Three (3)  business  days  prior to the  Closing,  Company
shall deliver to Parent a schedule  identifying  the total (i) fees and expenses
due to Broadview,  and (ii) fees and expenses due to Company's legal counsel and
accountants (together with a release, to be delivered at Closing, of Company and
Sub by each of Broadview  and  Company's  legal  counsels and  accountants  upon
payment of their fees and expenses).  If such aggregate fees and expenses differ
from the amount of fees and  expenses  set forth in Section  3.18 of the Company
Disclosure  Schedule  (such  difference,  the  "Expense  Difference"),  the Cash
Amount,  Warrant Share Price,  Common Exchange Ratio,  Option Exchange Ratio and
Preferred  Exchange  Ratio  shall be  proportionately  adjusted  to  increase or
decrease,  as the case may be, the aggregate amount of cash, Parent Common Stock
and options to purchase  Parent  Common  Stock issued in the Merger by an amount
equal to the Expense  Difference.  Three (3) business days prior to the Closing,
Company shall also deliver to Parent a schedule detailing such adjustments to be
made to the  respective  Exchange  Ratios and the Cash Amount and Warrant  Share
Price.  Company  and  Parent  shall  use  their  best  efforts  to agree on such
adjustments prior to the Closing.

                  (c) If the sum of the number of shares of Company Common Stock
then  outstanding and the number of shares of Company Common Stock issuable upon
exercise  of Company  Options  (whether or not then  exercisable)  as of the day
three (3) business days prior to the Closing,  is less than such sum on the date
of this Agreement (such  difference,  the "Canceled  Company  Stock"),  the Cash
Amount,  Warrant Share Price,  Common Exchange Ratio,  Option Exchange Ratio and
Preferred  Exchange  Ratio shall be  proportionately  adjusted  to increase  the
aggregate  amount of cash,  Parent  Common Stock and options to purchase  Parent
Common  Stock  issued  in the  Merger  by an  amount  equal to the  value of the
Canceled  Company Stock.  Three (3) business days prior to the Closing,  Company
shall deliver to Parent a schedule  detailing such adjustments to be made to the
respective  Cash Amount,  Warrant Share Price and  respective  Exchange  Ratios.
Company  and Parent  shall use their best  efforts to agree on such  adjustments
prior to the Closing.

         VI.7 No Public  Disclosure.  Unless otherwise required by law, prior to
the Effective Time, no disclosure  (whether or not in response to an inquiry) of
the subject  matter of this  Agreement  shall be made by any party hereto unless
approved by Parent and Company  prior to release,  provided  that such  approval
shall not be unreasonably withheld,  subject, in the case of Parent, to Parent's
obligation  to  comply  with  applicable  securities  laws  and  the  rules  and
regulations of the National Association of Securities Dealers, Inc.


         VI.8  Commercially  Reasonable  Efforts.   Subject  to  the  terms  and
conditions  provided  in this  Agreement  and in  order to  consummate  and make
effective the  transactions  contemplated  by this  Agreement for the purpose of
securing to the parties  hereto the  benefits  contemplated  by this  Agreement,
Parent, Sub and Company shall use commercially  reasonable efforts to (i) ensure
that its representations and warranties, as modified, in the case of Company, by
the Company  Disclosure  Letter including any permitted  updates to such Letter,
remain true and correct,  (ii) promptly take, or cause to be taken, all actions,
and to do  promptly,  or cause to be  done,  all  things  necessary,  proper  or
advisable under applicable laws and regulations to consummate and make effective
the  transactions  contemplated  hereby,  (iii)  promptly  obtain all  necessary
Authorizations and to effect all necessary  registrations and filings (including
merger  notification with Governmental  Entities),  and (iv) promptly remove any
injunctions  or  other  impediments  or  delays,   legal  or  otherwise  to  the
consummation of the transactions contemplated hereby; provided that Parent shall
not be  required  to agree to any  divestiture  by Parent or  Company  or any of
Parent's  subsidiaries  or  Affiliates  of  shares  of  capital  stock or of any
business,  assets or property of Parent or its  subsidiaries  or  Affiliates  or
Company or its Affiliates,  or the imposition of any material  limitation on the
ability of any of them to conduct their businesses or to own or exercise control
of such assets, properties and stock.

         VI.9  Notification of Certain Matters. Company shall give prompt notice
to Parent, and Parent shall give prompt notice to Company, of (i) the occurrence
or  non-occurrence  of any event, the occurrence or  non-occurrence  of which is
likely  to  cause  any   representation  or  warranty  of  Company  and  Parent,
respectively, contained in this Agreement to be untrue or inaccurate at or prior
to the Effective  Time,  and (ii) any failure of Company or Parent,  as the case
may be, to comply with or satisfy any  covenant,  condition  or  agreement to be
complied with or satisfied by it hereunder.  The delivery of any notice pursuant
to this Section  shall not limit or otherwise  affect any remedies  available to
the party receiving such notice and will not limit Company's  ability to correct
or resolve such inaccuracy or to cure such failure by the Effective Time.


<PAGE>

         VI.10  Certain Benefit Plans; Employee Stock Options and Severance.

                  (a) Parent shall take such reasonable actions as are necessary
to allow  eligible  employees  of  Company  that will be  employees  of Sub,  to
participate in benefit programs substantially  comparable to those applicable to
employees of Parent on similar terms, as soon as practicable after the Effective
Time.  Company's  employee  benefit  plans shall be continued  until  comparable
programs are available  through Sub. For purposes of the requirement of 3 months
service with Sub in order to  participate  in Parent's  Employee  Stock Purchase
Plan at the next  enrollment  date only,  service  with  Company of employees of
Company who became employees of Sub, shall be considered as service with Sub.

                  (b) As  promptly  as  practicable  after the  Effective  Time,
Parent  will grant  stock  options to purchase  Parent  Common  Stock to certain
employees of Company that will be employees of Sub after the  Effective  Time to
be determined by Parent in its sole discretion.

                  (c) In the  event  that the  Merger  is  consummated,  and the
employment  of any employee of Company who becomes an employee of Sub  following
the Merger is immediately  terminated by Sub other than for cause (as determined
in good faith by  Parent),  then such  employee  shall be  entitled to receive a
severance  package  comparable to the industry  practice and in accordance  with
Parent's policy, and will be required to sign only a severance agreement.

                  (d)  Immediately  prior to the Effective  Time, but contingent
upon the Closing,  by virtue of the Merger,  the vesting schedules of all of the
Company  Options  granted under the Company's 1996 Stock Plan and held by Thomas
H. Scholl, Lee Lambert, Young-Min Kim and Seung Hwa Yoo immediately prior to the
Closing  shall  accelerate  and  thereafter  be fully  exercisable.  Appropriate
documentation to such effect evidencing such  acceleration  shall be executed by
each optionee and Company and shall be delivered at Closing.

         VI.11 Form S-3 Registration Statement.

                  (a)  Filing;   Maintenance.   Parent  shall  use  commercially
reasonable  efforts to file promptly  after the Effective  Time, but in no event
later than ten (10) business days after the Effective Time, a shelf registration
statement  on Form S-3 (or any  successor or other  appropriate  form) under the
Securities  Act  ("Registration  Statement"),  for the  resale of the  shares of
Parent Common Stock to be issued at the Closing,  together with all other shares
of  Parent  Common  Stock  issued in  respect  thereof  (by way of stock  split,
dividend or otherwise)  (collectively,  the "Registrable Shares"), and shall use
commercially  reasonable efforts to cause such Registration  Statement to become
effective as promptly as practicable after filing and maintain its effectiveness
for 12 months  following  the  Effective  Time, or such shorter time as shall be
required  for all of the  Registrable  Shares to be sold  pursuant  thereto (the
"Effectiveness Period"). The shelf registration shall cover only the Registrable
Shares.  During the ten (10) day period  (during  which shares of Parent  Common
Stock are traded on the Nasdaq  National  Market)  after the shelf  registration
becomes  effective  (or until all the  Registrable  Shares are sold, if sooner),
Parent shall not publicly announce, or file a registration statement covering, a
new public  offering of its capital  stock on its own behalf or on behalf of any
of its stockholders other than holders of Registrable Shares pursuant hereto.

                  (b)  Effectiveness; Suspension.

                            (i)  From  time  to time  during  the  Effectiveness
Period,  Parent will amend or  supplement  the  Registration  Statement  and the
prospectus  contained  therein as and to the extent necessary to comply with the
federal   securities  law  and  any  applicable  state  securities   statute  or
regulation, subject to the following limitations and qualifications.

                            (ii) Parent will notify the Securityholder Agent (A)
when a prospectus or any  prospectus  supplement or amendment has been filed and
when the same  becomes  effective,  (B) of any  request  by the SEC or any other
federal or state  governmental  authority  during the  Effectiveness  Period for
amendments or supplements to the Registration Statement,  (C) of the issuance by
the SEC or any  other  Governmental  Entity  of any stop  order  suspending  the
effectiveness of the Registration Statement or the initiation of any proceedings
for that purpose,  (D) of the receipt by Parent of any notification with respect
to the suspension of the qualification or exemption from qualification of any of
the  Registrable  Shares  for  sale in any  jurisdiction  or the  initiation  or
threatening of any  proceeding for such purpose,  or (E) of the happening of any
event which makes any statement  made in the  Registration  Statement or related
prospectus or any document  incorporated or deemed to be incorporated therein by
reference  untrue in any  material  respect or which  requires the making of any
changes in the Registration  Statement or prospectus so that it will not contain
any untrue  statement  of a  material  fact or omit to state any  material  fact
required to be stated  therein or necessary to make the  statements  therein not
misleading.

<PAGE>

                            (iii)  Notwithstanding  any other  provision of this
Agreement,  Parent  will have the right at any time  upon the  happening  of any
event of the kind described in clauses B-E in paragraph (ii) above,  or upon the
reasonable  judgment of Parent's  Board of  Directors  after  consultation  with
counsel  that it is  advisable  to suspend the use of the  prospectus,  and upon
written notice to each Holder, to require that each holder of Registrable Shares
("Holder")  suspend  further open market offers and sales of Registrable  Shares
for a reasonable  period of time, which period shall not exceed 45 days for each
such event or an  aggregate  of 90 days  during the  Effectiveness  Period  (the
"Suspension  Right").  In the event Parent exercises the Suspension  Right, such
suspension  will  continue  for the  period  of time  reasonably  necessary  for
disclosure  to  occur  at a time  that  is not  detrimental  to  Parent  and its
stockholders  as  determined  in good faith by Parent  after  consultation  with
counsel  or  until  copies  of a  supplemental  or  amended  prospectus  becomes
effective.  Parent will promptly give Holders notice of any such  suspension and
the  termination  of such  suspension  and will use all  reasonable  efforts  to
minimize the length of the suspension.

                  (c) Expenses. Parent shall pay all of the expenses incurred in
connection  with filing the  Registration  Statement but shall not be liable for
(i) any discounts or commissions to any broker or  underwriter  attributable  to
the  shares  being  registered  and  similar   charges,   (ii)  legal  fees  and
disbursements  of counsel for the selling  holders,  or (ii) any stock  transfer
taxes incurred in respect of such registered shares.

                  (d) Indemnification.

                            (i)To  the  extent  permitted  by law,  Parent  will
indemnify  and hold  harmless each Holder,  any  underwriter  (as defined in the
Securities Act) for such Holder, each of its officers,  directors,  shareholders
or partners and each person,  if any,  who controls  such Holder or  underwriter
within the meaning of the Securities Act or the Exchange Act, against any Losses
(joint or several) to which they may become  subject under the  Securities  Act,
the  Exchange  Act or other  federal  or state law,  insofar as such  Losses (or
actions in respect  thereof) arise out of or are based upon any of the following
statements, omissions or violations (collectively a "Violation"): (A) any untrue
statement  or alleged  untrue  statement  of a material  fact  contained  in the
Registration Statement, including any preliminary prospectus or final prospectus
contained therein or any amendments or supplements  thereto, (B) the omission or
alleged omission to state therein a material fact required to be stated therein,
or necessary to make the statements therein not misleading, or (C) any violation
or alleged  violation by Parent of the  Securities  Act,  the Exchange  Act, any
other  federal or state  securities  law or any rule or  regulation  promulgated
under  the  Securities  Act,  the  Exchange  Act or any other  federal  or state
securities  law;  and  Parent  will  pay to each  such  Holder,  underwriter  or
controlling  person, any legal or other expenses  reasonably incurred by them in
connection with  investigating  or defending any such Losses;  provided that the
indemnity  agreement  contained in this Subparagraph  shall not apply to amounts
paid in settlement of any such Losses if such settlement is effected without the
consent of Parent, which consent shall not be unreasonably  withheld or delayed;
nor shall  Parent be liable in any such case for any such  Losses to the  extent
that it arises out of or is based upon (a) a Violation  which occurs in reliance
upon and in conformity with written  information  furnished expressly for use in
connection with such  registration  by any such Holder,  or (b) a Violation that
would not have  occurred  if such  Holder had  delivered  to the  purchaser  the
version of the prospectus  most recently  provided by Parent to the Holder as of
the date of such sale.


                            (ii) To the extent  permitted  by law,  each selling
Holder will indemnify and hold harmless Parent,  each of its directors,  each of
its officers who has signed the Registration Statement, each person, if any, who
controls Parent within the meaning of the Securities Act, any  underwriter,  any
other Holder selling securities  pursuant to the Registration  Statement and any
controlling  person of any such underwriter or other Holder,  against any Losses
(joint or several)  to which any of the  foregoing  persons  may become  subject
under the  Securities  Act,  the  Exchange  Act or other  federal  or state law,
insofar as such Losses (or actions in respect thereto) arise out of or are based
upon any Violation (which includes without  limitation the failure of the Holder
to comply with the prospectus  delivery  requirements  under the Securities Act,
and the failure of the Holder to deliver the most current prospectus provided by
Parent prior to such sale),  in each case to the extent (and only to the extent)
that such  Violation  occurs in reliance  upon and in  conformity  with  written
information  furnished by such Holder to Parent  expressly for use in connection
with such  registration  or such Violation is caused by the Holder's  failure to
deliver to the  purchaser of the Holder's  shares a prospectus  (or amendment or
supplement  thereto) that had been made  available to the Holder by Parent prior
to such sale of the Holder's shares; and such selling Holder will pay, any legal
or other expenses  reasonably  incurred by any person intended to be indemnified
pursuant to this Subparagraph in connection with  investigating or defending any
such  Losses;   provided  that  the  indemnity   agreement   contained  in  this
Subparagraph shall not apply to amounts paid in settlement of any such Losses if
such  settlement  is effected  without the consent of the Holder,  which consent
shall not be unreasonably  withheld,  and provided further, that the obligations
of such  Holders  hereunder  shall  be  several  and not  joint.  The  aggregate
indemnification   and   contribution   liability   of  each  Holder  under  this
Subparagraph  shall not  exceed  the net  proceeds  received  by such  Holder in
connection with sale of shares pursuant to the Registration Statement.
<PAGE>

                            (iii) Each person entitled to indemnification  under
this Section (the  "Indemnified  Party") shall give notice to the party required
to  provide  indemnification  (the  "Indemnifying  Party")  promptly  after such
Indemnified Party has actual knowledge of any claim as to which indemnity may be
sought and shall permit the Indemnifying Party to assume the defense of any such
claim and any  litigation  resulting  therefrom,  provided  that counsel for the
Indemnifying  Party who  conducts  the  defense of such claim or any  litigation
resulting  therefrom shall be approved by the Indemnified  Party (whose approval
shall not unreasonably be withheld),  and the Indemnified  Party may participate
in such defense at such party's  expense,  and provided further that the failure
of any Indemnified Party to give notice as provided herein shall not relieve the
Indemnifying  Party of its obligations under this Section unless and only to the
extent  that  the   Indemnifying   Party  is  materially   prejudiced   thereby.
Notwithstanding the foregoing sentence, the Indemnified Party may retain its own
counsel to conduct  the  defense of any such claim or  litigation,  and shall be
entitled to be reimbursed by the Indemnifying Party for expenses incurred by the
Indemnified Party in defense of such claim or litigation,  in the event that the
Indemnifying  Party  does not assume  the  defense  of such claim or  litigation
within 60 days after the  Indemnifying  Party  receives  notice thereof from the
Indemnified  Party.  Further,  an Indemnifying Party shall be liable for amounts
paid in  settlement  of any such claim or  litigation  only if the  Indemnifying
Party  consents  in  writing  to such  settlement  (which  consent  shall not be
unreasonably  withheld). No Indemnifying Party, in the defense of any such claim
or litigation, shall (except with the consent of each Indemnified Party) consent
to entry of any judgment or enter into any  settlement  that does not include as
an  unconditional  term  thereof the giving by the claimant or plaintiff to such
Indemnified  Party of a release  from all  liability in respect to such claim or
litigation.  Each  Indemnified  Party shall furnish such  information  regarding
itself or the claim in question as an Indemnifying  Party may reasonably request
in writing and as shall be reasonably required in connection with the defense of
such claim and litigation resulting therefrom.

                            (iv) To the extent that the indemnification provided
for in this Section is held by a court of competent  jurisdiction  (by the entry
of a final judgment or decree and the expiration of time to appeal or the denial
of the last right of  appeal) to be  unavailable  to an  Indemnified  Party with
respect to any Losses referred to herein,  then the Indemnifying  Party, in lieu
of indemnifying such Indemnified Party hereunder, shall contribute to the amount
paid or payable  by such  Indemnified  Party as a result of such  Losses in such
proportion as is appropriate  to reflect the relative fault of the  Indemnifying
Party on the one hand and of the  Indemnified  Party on the other in  connection
with the statements or omissions  which resulted in such Losses,  as well as any
other relevant equitable considerations.  The relative fault of the Indemnifying
Party and of the  Indemnified  Party shall be  determined by reference to, among
other things,  whether the untrue or alleged untrue statement of a material fact
or the  omission  or  alleged  omission  to state a  material  fact  relates  to
information  supplied by the Indemnifying  Party or by the Indemnified Party and
the parties' relative intent,  knowledge,  access to information and opportunity
to correct or prevent such statement or omission;  provided, that no Holder will
be required to contribute  any amount in excess of the net proceeds  received by
such Holder in connection  with the sale of Registrable  Shares  pursuant to the
Registration  Statement,  and  provided,  further,  that  no  Person  guilty  of
fraudulent  misrepresentation  (within  the  meaning  of  Section  11(f)  of the
Securities  Act) will be  entitled to  contribution  from any Person who was not
guilty of such fraudulent misrepresentation.

                  (e) Notice and Approval. Other than sales made within ten (10)
business days of the effectiveness of the Registration  Statement, if any Holder
shall  propose  to sell any  Registrable  Shares  pursuant  to the  Registration
Statement, it shall notify Parent of its intent to do so (including the proposed
manner  and timing of all  sales) at least two full  trading  days prior to such
sale, and the provision of such notice to Parent shall conclusively be deemed to
reestablish  and  reconfirm  an  agreement  by such  Holder to  comply  with the
registration provisions set forth in this Agreement.  Unless otherwise specified
in such notice,  such notice shall be deemed to constitute a representation that
any  information  previously  supplied  to Parent by such Holder  expressly  for
inclusion in the Registration Statement (as the same may have been superseded by
subsequent such  information) is accurate as of the date of such notice.  At any
time within such two trading-day period,  Parent may refuse to permit the Holder
to resell any Registrable Shares pursuant to the Registration Statement based on
the  happening  of any event of the kind  described  in  clauses  B-E of Section
6.11(b)(ii)  above;  provided that in order to exercise this right,  Parent must
deliver a  certificate  in writing  to the Holder to the effect  that a delay in
such sale is necessary because a sale pursuant to the Registration  Statement in
its then-current form without the addition of material,  non-public  information
about Parent,  or because of a stop order  suspending the  effectiveness  of the
Registration  Statement,  could constitute a violation of the federal securities
laws.
<PAGE>

                  (f)  Delivery of  Prospectus.  For any offer or sale of any of
the Registrable Shares by a Holder in a transaction that is not exempt under the
Securities  Act,  the Holder,  in addition to complying  with any other  federal
securities  laws,  shall deliver a copy of the final prospectus (or amendment of
or supplement to such  prospectus) of Parent covering the Registrable  Shares in
the form  furnished  to the  Holder  by Parent  to the  purchaser  of any of the
Registrable  Shares on or before the  settlement  date for the  purchase of such
Shares.

                  (g) Copies of Prospectuses.  Subject to the provisions of this
Section,  when a Holder is  entitled  to sell and gives  notice of its intent to
sell Registrable  Shares pursuant to the Registration  Statement,  Parent shall,
within  two  trading  days  following  the  request,  furnish  to such  Holder a
reasonable  number  of  copies  of  any  prospectus,  or a  supplement  to or an
amendment  of such  prospectus,  in  conformity  with  the  requirements  of the
Securities  Act, as may be necessary  so that,  as  thereafter  delivered to the
purchasers of such Registrable  Shares, such prospectus shall not as of the date
of delivery to the Holder include an untrue statement of a material fact or omit
to state a material fact required to be stated  therein or necessary to make the
statements   therein  not   misleading   or  incomplete  in  the  light  of  the
circumstances then existing.

         VI.12  Form S-8  Registration Statement.  Parent  shall file,  promptly
after the  Effective  Time but in no event  later  than ten (10)  business  days
following  the  Effective  Time,  a  registration  statement on Form S-8 (or any
successor or other  appropriate form) under the Securities Act for the shares of
Parent Common Stock issuable with respect to substituted  Company  Options,  and
maintain its  effectiveness  (and maintain the current  status of the prospectus
contained therein) for so long as such options remain outstanding.

         VI.13  Nasdaq  National  Market  Listing.  Parent shall  authorize  for
listing  on the  Nasdaq  National  Market  the  shares  of Parent  Common  Stock
issuable, and those required to be reserved for issuance, in connection with the
Merger, subject to official notice of issuance.

         VI.14  Company's  Auditors.  Company will use  commercially  reasonable
efforts to cause its management and its independent  auditors to facilitate on a
timely  basis (i) the review of any  Company  audit or work papers for up to the
past three  years,  including  the  examination  of selected  interim  financial
statements and data, and (ii) the delivery of such documents or information from
Company's  independent  accountants as may be reasonably  requested by Parent or
its  accountants in order for Parent's  accountants to render any opinion called
for under this Agreement, if any.

         VI.15 Blue Sky Laws. Parent shall make commercially  reasonable efforts
to comply with the securities and blue sky laws of all  jurisdictions  which are
applicable to the issuance of Parent Common Stock pursuant  hereto.  The Company
shall use reasonable efforts to assist Parent as may be necessary to comply with
the  securities and blue sky laws of all  jurisdictions  which are applicable in
connection with the issuance of Parent Common Stock pursuant hereto.

         VI.16   Repayment  of  Debt.   Parent  shall  repay,  as  part  of  the
consideration  paid in the Merger (and without  affecting  the Cash Amount,  the
Exchange  Ratio or the Warrant  Share  Price),  Company's  outstanding  debts to
NationsBank, N.A., Major Stockholder and Bank of America in the aggregate amount
of $7,650,000,  on behalf of the Company and without  assuming any such debt, at
and as of the  Closing.  Parent  will not  repay  any  other  borrowings  of the
Company, except as contemplated by this Agreement.

         VI.17 Additional Documents and Further Assurances. Before and following
the Closing,  each party hereto,  at the request of another party hereto,  shall
execute and deliver  such other  instruments  and do and perform such other acts
and  things as may be  necessary  or  desirable  for  effecting  completely  the
consummation of this Agreement and the transactions contemplated hereby.


<PAGE>
                                   ARTICLE VII

                            CONDITIONS TO THE MERGER

         VII.1 Conditions to Obligations of Each Party to Effect the Merger. The
respective  obligations  of Parent,  Sub and Company to this Agreement to effect
the Merger  shall be subject to the  satisfaction  at or prior to the Closing of
the following conditions:

                  (a) Stockholder Approval.  This Agreement,  the Merger and any
amendments  to  Company's  Articles  of  Incorporation  required  to effect  the
foregoing,  shall have been approved and adopted by the  stockholders of Company
by  the  requisite  vote  under   applicable  law  and  Company's   Articles  of
Incorporation.

                  (b) Approvals.  Other than the filings provided for by Section
2.2 but including  filing of Company's  amended  Articles of  Incorporation  (if
required),  all  material  Authorizations,  declarations  or  filings  with,  or
expirations of waiting  periods imposed by, any  Governmental  Entity shall have
been filed, occurred or been obtained.

                  (c)  Securities  Law  Compliance.  The  issuance of the Parent
Common  Stock and Company  Capital  Stock in the Merger shall be exempt from the
registration  requirement  of the  federal  securities  laws and shall have been
qualified or shall be exempt under all applicable state securities laws.

                  (d) No  Injunctions or  Restraints;  Illegality.  No temporary
restraining order,  preliminary or permanent injunction or other order issued by
any court of competent  jurisdiction  or other legal or regulatory  restraint or
prohibition  preventing the  consummation of the Merger shall be in effect,  nor
shall  any  proceeding  brought  by a  Governmental  Entity  seeking  any of the
foregoing be pending; nor shall there be any action taken, or any statute, rule,
regulation  or order  enacted,  entered,  enforced or deemed  applicable  to the
Merger, which makes the consummation of the Merger illegal.

                  (e) Tax Opinions.  Parent and Company shall each have received
substantially  identical  written  opinions from their  counsel,  Wilson Sonsini
Goodrich & Rosati,  Professional  Corporation,  and Testa,  Hurwitz & Thibeault,
LLP, respectively, in form and substance reasonably satisfactory to them, to the
effect that the Merger will  constitute a  reorganization  within the meaning of
Section  368(a)  of the  Code.  The  parties  to this  Agreement  agree  to make
reasonable  representations  as  requested  by such  counsel  for the purpose of
rendering such opinions.

         VII.2 Additional  Conditions to Obligations of Company. The obligations
of  Company  to  consummate  and  effect  this  Agreement  and the  transactions
contemplated  hereby  shall be  subject to the  satisfaction  at or prior to the
Closing of each of the  following  conditions,  any of which may be  waived,  in
writing, exclusively by the Company and the Major Stockholder:

                  (a)  Representations  and Warranties.  The representations and
warranties  of Parent  and Sub  contained  in this  Agreement  shall be true and
correct on and as of the Closing Date,  except for changes  contemplated by this
Agreement  and except for those  representations  and  warranties  which address
matters only as of a particular  date (which shall remain true and correct as of
such  date),  with the same force and effect as if made on and as of the Closing
Date.

                  (b)  Agreements  and  Covenants.  Parent  and Sub  shall  have
performed  and  complied  with all  agreements  and  covenants  required by this
Agreement to be performed  and complied  with by them on or prior to the Closing
Date.

                  (c) Material Adverse Effect. There shall not have occurred any
Material Adverse Effect on Parent since the date of this Agreement. For purposes
of this  condition,  a decline in the trading  price of Parent's  Common  Stock,
whether occurring at any time or from time to time, as reported by Nasdaq or any
other  automated  quotation  system or exchange  shall not constitute a Material
Adverse Effect.
<PAGE>

                  (d)  Reservation of Shares.  Parent shall reserve for issuance
the maximum  number of shares of Parent  Common  Stock as may be  issuable  upon
consummation of the Merger.

                  (e)  Certificate  of Parent.  Company shall have been provided
with a  certificate  executed  on behalf of the  Parent by one of its  executive
officers to the effect that, as of the Closing  Date,  all  representations  and
warranties  made by the Parent and Sub in this  Agreement  are true and correct;
and all covenants,  obligations and conditions of this Agreement to be performed
by Parent and Sub on or before such date have been so performed.

                  (f) Legal Opinion. Company shall have received a legal opinion
from Wilson Sonsini Goodrich & Rosati,  Professional Corporation,  legal counsel
to Parent and Sub, in substantially the form attached hereto as Exhibit B.

                  (g)  Litigation.  There  shall be no bona fide  action,  suit,
claim or proceeding of any nature pending, or threatened, against Parent or Sub,
any of  their  respective  properties  or  assets,  or any of  their  respective
officers or directors  arising out of, or in any way connected  with, the Merger
or the other transactions  contemplated by the terms of this Agreement, or which
could reasonably be expected to have a Material Adverse Effect on Parent or Sub.

         VII.3  Additional  Conditions to the Obligations of Parent and Sub. The
obligations  of Parent and Sub to consummate  and effect this  Agreement and the
transactions  contemplated  hereby  shall be subject to the  satisfaction  at or
prior to the Closing of each of the  following  conditions,  any of which may be
waived, in writing, exclusively by Parent:

                  (a)  Representations  and Warranties.  The representations and
warranties of Company  contained in this Agreement  shall be true and correct on
and as of the Closing Date,  except for changes  contemplated  by this Agreement
and except for those  representations  and warranties which address matters only
as of a  particular  date (which shall remain true and correct as of such date),
and  subject to the right of the  Company  to update  such  representations  and
warranties in accordance  with the  provisions of Section 3.24 hereof,  with the
same force and effect as if made on and as of the Closing Date.

                  (b) Agreements and Covenants. Company shall have performed and
complied  with all  agreements  and covenants  required by this  Agreement to be
performed and complied with by it on or prior to the Closing Date.

                  (c) Material Adverse Effect. There shall not have occurred any
Material Adverse Effect on Company since the date of this Agreement.

                  (d)  Certificate  of Company.  Parent shall have been provided
with a  certificate  executed on behalf of the Company by its  President  to the
effect that, as of the Closing Date, all  representations and warranties made by
the Company in this  Agreement and as updated prior to the Closing Date pursuant
to this  Agreement,  are true and  correct  in all  material  respects,  and all
covenants,  obligations  and conditions of this Agreement to be performed by the
Company on or before such date have been so performed.

                  (e) Third Party  Consents.  Parent  shall have been  furnished
with  evidence  satisfactory  to it  that  Company  has  obtained  the  material
consents,  approvals  and  waivers  set  forth  in  Section  3.4 of the  Company
Disclosure Letter,  including without limitation the written confirmation of (i)
each of  NationsBank,  N.A. and Bank of America of the terms of Section 6.16 and
that such  repayment is repayment  in full of  Company's  outstanding  debts and
other obligations  toward it, and (ii) Major Stockholder of the terms of Section
6.16 and that such repayment is repayment in full of Company's outstanding debts
and other obligations  toward it in connection with the $2 million loan extended
by it to Company in 1998.

                  (f)   Employment   Offers.   No  person  that  was  separately
identified by Parent indicated an intention to terminate continued employment by
Sub after Closing.

                  (g) Executed Ancillary Agreements. The agreements described in
Section  6.1  have  been  executed  and  delivered  to  Parent,  and all of such
agreements shall be in full force and effect.
<PAGE>

                  (h) Legal Opinions. Parent shall have received a legal opinion
from  Testa,  Hurwitz  &  Thibeault,  LLP,  legal  counsel  to the  Company,  in
substantially  the form attached hereto as Exhibit C. Parent shall have received
a legal opinion from Howrey & Simon, in  substantially  the form attached hereto
as Exhibit D.

                  (i) No  Injunctions  or Restraints on Conduct of Business.  No
temporary restraining order,  preliminary or permanent injunction or other order
issued by any  court of  competent  jurisdiction  or other  legal or  regulatory
restraint or provision challenging Parent's proposed acquisition of the Company,
or limiting or restricting  Parent's conduct or operation of the business of the
Company (or its own business) following the Merger shall be in effect, nor shall
any  proceeding  brought  by an  administrative  agency or  commission  or other
governmental authority or instrumentality,  domestic or foreign,  seeking any of
the foregoing be pending.

                  (j) No  Dissenters.  The holders of more than five  percent of
the outstanding  shares of Company  Capital Stock shall not have exercised,  nor
shall they have any  continued  right to  exercise,  appraisal,  dissenters'  or
similar  rights under  applicable  law with respect to their shares by virtue of
the Merger.

                  (k)  Litigation.  There  shall be no bona fide  action,  suit,
claim or  proceeding  of any  nature  pending,  or overtly  threatened,  against
Company, its properties or any of its officers or directors,  arising out of, or
in any way connected with, the Merger or the other transactions  contemplated by
the terms of this  Agreement,  which  could  reasonably  be  expected  to have a
Material Adverse Effect on Company.

                  (l) Termination of Agreements.  All Contracts  between Company
and its  stockholders  relating  to such  stockholders  in their  capacities  as
stockholders  and/or  employees of Company,  including the  Securities  Purchase
Agreement dated December 30, 1994, shall have been terminated.  To remove doubt,
this  provision  is not  applicable  to  Contracts  between  Company  and  Major
Stockholder  the subject  matter of which is  Company's  Intellectual  Property.
Parent shall have signed an agreement  with Ericsson  consistent  with the March
1998 memorandum of understanding between Parent and Ericsson.

                  (m) Balance Sheet.  Company shall have provided Parent with an
unaudited balance sheet as of March 31, 1998.

                  (n) FIRPTA Compliance.  Company shall have delivered to Parent
properly  executed  statements  in forms  reasonably  acceptable  to Parent  for
purposes of satisfying  Parent's  obligations under Treasury Regulation Sections
1.1445-2(c)(3) and 1.897-2(h)(2), along with written authorization for Parent to
deliver the notice under Section  1.897-2(h)(2) to the IRS, as agent for Company
and on Company's behalf, upon the Closing.


                                  ARTICLE VIII

               SURVIVAL OF REPRESENTATIONS AND WARRANTIES; ESCROW

         VIII.1 Survival of Representations and Warranties.  All covenants to be
performed prior to the Effective Time and all  representations and warranties in
this  Agreement of each party or in any  instrument  delivered  pursuant to this
Agreement shall survive the Merger and any  investigation at any time made by or
on behalf of Parent or Company,  and continue  until the later of (a) 5:00 p.m.,
California  time,  on  the  date  Parent  receives  a  copy  of  Parent's  first
consolidated  audited  financial  statements  after the Closing or (b) only with
regard to a  representation  or  warranty  which is the  subject of a claim made
before the time set forth in (a) above,  either by Parent or Sub relating to the
Escrow Fund or by Company or the  stockholders  of Company for Parent's or Sub's
breach of their respective representations and warranties,  until the resolution
of such claim (the "Expiration Date").


<PAGE>

         VIII.2 Escrow Arrangements.

                  (a) Escrow Fund. At the Effective Time, Major Stockholder will
be deemed to have received and deposited with Citicorp Trust,  N.A.,  California
as escrow  agent (the  "Escrow  Agent"),  cash  representing  the Escrow  Amount
without any act of Major  Stockholder.  Such deposit will  constitute  an escrow
fund (the  "Escrow  Fund") to be governed  by the terms set forth  herein and at
Parent's sole cost and expense (and to the extent Parent fails to pay such costs
and  expenses,  Parent  shall  reimburse  the Escrow Fund for such  amount).  No
portion of the Escrow  Amount  shall be  contributed  in respect of any  Company
Options  or  Company  Common  Stock.  The  Escrow  Fund  shall be  available  to
compensate  Parent and its  affiliates  for any Loss  incurred  by  Parent,  its
officers,  directors,  or Affiliates (including the Surviving  Corporation),  in
good faith,  directly or indirectly as a result of any (i)  inaccuracy or breach
of a representation  or warranty of Company contained herein (as modified by the
Company  Disclosure  Letter as  updated),  (ii) failure by Company to perform or
comply  with any  covenant  contained  herein,  or (iii)  payment  in respect of
Dissenting Shares which exceeds the consideration that otherwise would have been
payable in respect of such  shares;  provided,  however,  that  Parent  will use
commercially  reasonable efforts to minimize its Losses. Parent and Company each
acknowledge that such Losses,  if any, would relate to unresolved  contingencies
existing at the Effective  Time,  which if resolved at the Effective  Time would
have  led to a  reduction  in the  aggregate  consideration  payable  by  Parent
pursuant to Section 2.6. Nothing herein shall limit the liability of Company for
any breach of any  representation,  warranty  or  covenant  (as  modified by the
Company  Disclosure  Letter as updated) if the Merger does not close.  Resort to
the Escrow  Fund  shall be the  exclusive  contractual  remedy of Parent and its
Affiliates   against   the   Company   or  any  of  its   directors,   officers,
representatives,  agents,  stockholders  or Affiliates for any such breaches and
misrepresentations  if the Merger  closes.  Parent  shall be entitled to receive
cash from the  Escrow  Fund only to the  extent  the  aggregate  amount by which
Losses   incurred  with  respect  to  all  matters  set  forth  above  exceed  a
"deductible" of $250,000 and then only to the extent of such excess.  The amount
of Losses  hereunder  shall be reduced by after-tax  amounts,  if any,  actually
received  by  Parent or Sub under any  insurance  policy  (net of any  increased
premiums resulting solely from receipt of such amounts by Parent or Sub). To the
extent a claim is paid from the Escrow Fund to Parent,  Parent  will  constitute
and appoint,  effective as of the date of such payment, the Securityholder Agent
on behalf of the Major  Stockholder  as the true and lawful  attorney  of Parent
with full power of  substitution in the name of the  Securityholder  Agent or in
the name of Parent,  but for the  benefit  of  Securityholder  Agent,  to pursue
third-party  claims or collect amounts for the account of  Securityholder  Agent
with respect to which a payment was made from the Escrow Fund.

                  (b)  Fraudulent  Misrepresentation.  Nothing in this Agreement
limits  Parent's  ability to assert  claims of any  amount  based on a theory of
fraudulent misrepresentation.

                  (c) Escrow  Period;  Distribution  upon  Termination of Escrow
Periods.  Subject to the  following  requirements,  the Escrow  Fund shall be in
existence  immediately  following the Effective Time and shall terminate at 5:00
p.m.,  California  time, on the Expiration Date (the "Escrow  Period") or sooner
upon delivery of cash pursuant to claims;  provided that the Escrow Period shall
not terminate with respect to such amount  remaining in the Escrow Fund (or some
portion  thereof)  which is  necessary  in the  reasonable  judgment  of Parent,
subject  to the  objection  of  the  Securityholder  Agent  and  the  subsequent
arbitration  of the  matter  in the  manner  provided  hereof,  to  satisfy  any
unsatisfied  claims  concerning  facts and  circumstances  existing prior to the
termination  of  such  Escrow  Period  specified  in any  Officer's  Certificate
delivered to the Escrow Agent prior to termination of such Escrow Period. Within
five  business days after  termination  of the Escrow  Period,  the Escrow Agent
shall deliver to the Major Stockholder the remaining portion of the Escrow Fund.

                  (d) Protection of Escrow Fund. The Escrow Agent shall hold and
safeguard the Escrow Fund during the Escrow  Period,  shall treat such fund as a
trust  fund in  accordance  with  the  terms  of this  Agreement  and not as the
property  of Parent  and  shall  hold and  dispose  of the  Escrow  Fund only in
accordance  with the terms  hereof.  The Escrow  Agent  shall  deposit  the cash
portion of the Escrow Fund in an interest bearing account in instruments earning
market rates of interest.  Such  accounts may include  deposits in Citibank even
though  Citibank may receive a benefit or profit  therefrom.  Interest earned on
cash  amounts in the Escrow Fund shall not be added to the Escrow Fund but shall
be distributed to the Major Stockholder.

                  (e) Claims Upon Escrow Fund.  Upon receipt by the Escrow Agent
at any time on or before  the last day of the  Escrow  Period  of a  certificate
signed by any officer of Parent (an "Officer's  Certificate"):  (A) stating that
Parent has paid or properly accrued or reasonably  anticipates that it will have
to pay or accrue Losses,  and (B) specifying in reasonable detail the individual
items of Losses  included  in the amount so stated,  the date each such item was
paid or properly accrued, or the basis for such anticipated  liability,  and the
nature of the  misrepresentation,  breach of  warranty or covenant to which such
item is related, the Escrow Agent shall, subject to the provisions of Subsection
(f)  hereof,  deliver  to  Parent  out  of  the  Escrow  Fund,  as  promptly  as
practicable,  cash held in the Escrow Fund in an aggregate  amount equal to such
Losses.
<PAGE>

                  (f)  Objections  to  Claims.  At the time of  delivery  of any
Officer's  Certificate to the Escrow Agent, a duplicate copy of such certificate
shall be delivered to the  Securityholder  Agent and for a period of thirty days
after such  delivery,  the Escrow  Agent shall make no delivery to Parent of any
Escrow  Amounts  pursuant to  Subsection  (e) unless the Escrow Agent shall have
received  written  authorization  from the  Securityholder  Agent  to make  such
delivery. After the expiration of such thirty day period, the Escrow Agent shall
make delivery of cash from the Escrow Fund in  accordance  with  Subsection  (e)
hereof,  provided  that  no  such  payment  or  delivery  may  be  made  if  the
Securityholder  Agent shall  object in a written  statement to the claim made in
the Officer's  Certificate,  and such statement shall have been delivered to the
Escrow Agent prior to the expiration of such thirty day period.

                  (g)  Resolution of Conflicts; Arbitration.

                           (i)  In case the Securityholder Agent shall so object
in  writing  to any  claim or  claims  made in any  Officer's  Certificate,  the
Securityholder  Agent and Parent  shall  attempt in good faith to agree upon the
rights of the  respective  parties with  respect to each of such claims.  If the
Securityholder Agent and Parent should so agree, a memorandum setting forth such
agreement shall be prepared and signed by both parties and shall be furnished to
the  Escrow  Agent.  The  Escrow  Agent  shall be  entitled  to rely on any such
memorandum and distribute cash from the Escrow Fund in accordance with the terms
thereof.



<PAGE>


                           (ii) If no such  agreement  can be reached after good
faith  negotiation,  either  Parent  or  the  Securityholder  Agent  may  demand
arbitration of the matter unless the amount of the damage or loss is at issue in
pending  litigation with a third party, in which event  arbitration shall not be
commenced until such amount is ascertained or both parties agree to arbitration;
and in either such event the matter shall be settled by arbitration conducted by
three  arbitrators.  Parent and the  Securityholder  Agent shall each select one
arbitrator, and the two arbitrators so selected shall select a third arbitrator.
The arbitrators  shall,  within ten (10) business days after the last day of any
hearings  on  any  motion,  issue  a  definitive  ruling  on  such  motion.  The
arbitrators  shall also,  within  twenty (20) business days from the last day of
any  hearings  regarding  the  imposition  of  sanctions  or the issuance of any
awards, issue a definitive ruling on the imposition of any such sanctions or the
issuance  of any such  award in such  arbitration.  The  arbitrators  shall also
establish  procedures  designed to reduce the cost and time for discovery  while
allowing  the  parties an  opportunity,  adequate  in the sole  judgment  of the
arbitrators,  to discover  relevant  information from the opposing parties about
the subject matter of the dispute.  The  arbitrators  shall rule upon motions to
compel or limit  discovery  and shall have the  authority  to impose  sanctions,
including  attorneys' fees and costs, to the same extent as a court of competent
law or equity,  should  the  arbitrators  determine  that  discovery  was sought
without  substantial  justification or that discovery was refused or objected to
without  substantial  justification.  The  decision  of a majority  of the three
arbitrators  as to the  validity  and  amount  of any  claim  in such  Officer's
Certificate  shall be binding and conclusive upon the parties to this Agreement,
and notwithstanding anything in Subsection (f) hereof, the Escrow Agent shall be
entitled to act in accordance  with such decision and make or withhold  payments
out of the Escrow Fund in accordance  therewith.  Such decision shall be written
and shall be supported by written  findings of fact and conclusions  which shall
set forth the award, judgment, decree or order awarded by the arbitrators.

                           (iii)   Judgment  upon  any  award  rendered  by  the
arbitrators  may  be  entered  in  any  court  having  jurisdiction.   Any  such
arbitration shall be held in San Jose, California under the rules then in effect
of the American Arbitration Association. For purposes of this Subsection (f), in
any arbitration hereunder in which any claim or the amount thereof stated in the
Officer's   Certificate  is  at  issue,   Parent  shall  be  deemed  to  be  the
Non-Prevailing  Party in the event that the  arbitrators  award Parent less than
the sum of (A)  one-half  of the  disputed  amount  plus (B) any  amounts not in
dispute; otherwise, Major Stockholder as represented by the Securityholder Agent
shall be deemed to be the Non-Prevailing  Party. The Non-Prevailing  Party to an
arbitration  shall  pay its own  expenses,  the  fees  of each  arbitrator,  the
administrative  costs of the  arbitration  and the expenses,  including  without
limitation, reasonable attorneys' fees and costs, incurred by the other party to
the arbitration.

                  (h)  Securityholder  Agent  of  the  Stockholders;   Power  of
Attorney.
<PAGE>

                           (i)  In  the  event that  the   Merger  is  approved,
effective  upon such vote,  and  without  further  act of any  stockholder,  Lee
Lambert is appointed as agent and attorney-in-fact (the "Securityholder  Agent")
for Major Stockholder for and on behalf of Major Stockholder to give and receive
notices and  communications,  to  authorize  delivery to Parent of cash from the
Escrow Fund in satisfaction of claims by Parent,  to object to such  deliveries,
to agree to,  negotiate,  enter into  settlements and compromises of, and demand
arbitration  and comply  with  orders of courts and awards of  arbitrators  with
respect to such claims,  and to take all actions necessary or appropriate in the
judgment of Securityholder  Agent for the accomplishment of the foregoing.  Such
agency may be changed by the Major  Stockholder  from time to time upon not less
than thirty days' prior written notice to Parent. The  Securityholder  Agent may
resign  at any time upon  giving at least  thirty  (30) days  written  notice to
Parent and Major  Stockholder.  Any vacancy in the  position  of  Securityholder
Agent  shall  promptly  be  filled by the Major  Stockholder.  No bond  shall be
required of the  Securityholder  Agent, and the  Securityholder  Agent shall not
receive  compensation for his or her services.  Notices or  communications to or
from the  Securityholder  Agent  shall  constitute  notice  to or from the Major
Stockholder.

                           (ii) The Securityholder Agent shall not be liable for
any act done or omitted hereunder as  Securityholder  Agent while acting in good
faith and in the exercise of reasonable  judgment.  The Major  Stockholder shall
indemnify the Securityholder  Agent and hold the  Securityholder  Agent harmless
against any Loss incurred  without gross  negligence or bad faith on the part of
the Securityholder Agent and arising out of or in connection with the acceptance
or administration of the Securityholder Agent's duties hereunder.

                  (i) Actions of the  Securityholder  Agent.  A  decision,  act,
consent or instruction of the  Securityholder  Agent shall constitute a decision
of the Major  Stockholder  and shall be final,  binding and conclusive  upon the
Major  Stockholder,  and the  Escrow  Agent  and  Parent  may rely upon any such
decision,  act, consent or instruction of the Securityholder  Agent as being the
decision, act, consent or instruction of the Major Stockholder. The Escrow Agent
and Parent are hereby  relieved  from any  liability  to any Person for any acts
done by them in accordance  with such decision,  act,  consent or instruction of
the Securityholder Agent.

                  (j) Third-Party Claims. In the event Parent becomes aware of a
third-party  claim  which  Parent  believes  may result in a demand  against the
Escrow Fund, Parent shall notify the Securityholder Agent of such claim, and the
Securityholder  Agent, as  representative  for the Major  Stockholder,  shall be
entitled, at Major Stockholder's  expense, to participate in any defense of such
claim.  Parent  shall have the right in its sole  discretion  to settle any such
claim;  provided that except with the consent of the  Securityholder  Agent,  no
settlement  of  any  such  claim  with  third-party  claimants  shall  alone  be
determinative  of the amount of any claim  against the Escrow Fund. In the event
that  the  Securityholder  Agent  has  consented  to any  such  settlement,  the
Securityholder  Agent  shall  have no power or  authority  to  object  under any
provision of this Article VIII to the amount of any claim by Parent  against the
Escrow Fund with  respect to such  settlement  to the extent that such amount is
consistent with the terms of such settlement.

                  (k) Escrow Agent's Duties.

                           (i)  The Escrow Agent shall be obligated only for the
performance  of such duties as are  specifically  set forth  herein,  and as set
forth in any additional  written escrow  instructions which the Escrow Agent may
receive  after the date of this  Agreement  which are  signed by an  officer  of
Parent and the Securityholder Agent and are in accordance with the terms of this
Agreement  and  shall  not be  responsible  for and shall not be under a duty to
examine into or pass upon the validity, binding effect, execution or sufficiency
of this Agreement,  and may rely and shall be protected in relying or refraining
from acting on any instrument reasonably believed to be genuine and to have been
signed or presented by the proper party or parties.

                           (ii)  The Escrow Agent is granted the power to effect
any transfer of cash out of the Escrow Fund contemplated by this Agreement.

                           (iii) The Escrow Agent is hereby authorized to comply
with and obey all orders,  judgments  or decrees of any court or  administrative
agency,  notwithstanding any notices,  warnings or other communications from any
party or any other  Person to the  contrary.  In case the Escrow  Agent obeys or
complies with any such order,  judgment or decree of any court, the Escrow Agent
shall  not be  liable to any of the  parties  hereto  or to any other  person by
reason of such compliance,  notwithstanding  any such order,  judgment or decree
being subsequently reversed,  modified, annulled, set aside, vacated or found to
have been entered without jurisdiction.
<PAGE>

                           (iv)  In performing  any duties under the  Agreement,
the Escrow Agent may act directly or through its agents, and shall not be liable
to any party for Losses. Without limiting the foregoing,  the Escrow Agent shall
not incur any such liability or responsibility for (A) any act or failure to act
made or omitted in good faith  (any such  action  pursuant  to advice of counsel
shall be  conclusive  evidence  of such good  faith),  (B) any  action  taken or
omitted in reliance  upon any  instrument,  including  any written  statement or
affidavit  provided  for in this  Agreement  that the Escrow Agent shall in good
faith believe to be genuine, (C) forgeries,  fraud,  impersonations,  or (D) for
the  expiration of any rights under any statute of  limitations  with respect to
this Agreement or any documents deposited with the Escrow Agent.

                           (v)  If any controversy arises between the parties to
this Agreement,  or with any other party,  concerning the subject matter of this
Agreement,  its terms or  conditions,  the Escrow  Agent will not be required to
determine the  controversy or to take any action  regarding it. The Escrow Agent
may  hold all  documents  and  cash  and may  wait  for  settlement  of any such
controversy  by final  appropriate  legal  proceedings or other means as, in the
Escrow Agent's discretion, the Escrow Agent may be required, despite what may be
set forth elsewhere in this Agreement.  In such event, the Escrow Agent will not
be liable for Loss.  Furthermore,  the Escrow  Agent may at its option,  file an
action of  interpleader  requiring the parties to answer and litigate any claims
and rights among themselves.  The Escrow Agent is authorized to deposit with the
clerk of the  court all  documents  and cash held in  escrow,  except  all cost,
expenses,  charges and reasonable attorney fees incurred by the Escrow Agent due
to the interpleader  action and which the parties jointly and severally agree to
pay. Upon initiating  such action,  the Escrow Agent shall be fully released and
discharged of and from all obligations  and Liabilities  imposed by the terms of
this Agreement.

                           (vi)  The parties and their respective successors and
assigns agree jointly and severally to indemnify and hold Escrow Agent  harmless
against any and all Losses,  including  reasonable  costs of  investigation  and
disbursements that may be imposed on Escrow Agent or incurred by Escrow Agent in
connection with the  performance of its duties under this  Agreement,  including
but not limited to any  litigation  arising from this Agreement or involving its
subject matter.

                           (vii) The  Escrow  Agent may  resign at any time upon
giving at least thirty  days'  written  notice to Parent and the  Securityholder
Agent.  The  appointment of a successor  escrow agent shall be  accomplished  as
follows:  Parent and the  Securityholder  Agent shall use their best  efforts to
mutually  agree on a successor  escrow agent within thirty days after  receiving
such notice.  If the parties fail to agree upon a successor  escrow agent within
such time, Parent shall appoint a successor escrow agent with assets of at least
$50 million  which has agreed to serve as Escrow  Agent (or any other  successor
escrow  agent with the consent of the  Securityholder  Agent,  which will not be
unreasonably   withheld)   and   promptly   notify  the  Escrow  Agent  and  the
Securityholder Agent of such appointment. The successor escrow agent selected in
the  preceding  manner shall execute and deliver an  instrument  accepting  such
appointment  and it shall  thereupon be deemed the Escrow Agent  hereunder.  The
Escrow  Agent will  promptly  transfer the Escrow Fund to the  successor  escrow
agent and the successor escrow agent shall, without further acts, be vested with
all the  estates,  properties,  rights,  powers,  and duties of the  predecessor
escrow agent as if originally  named as escrow agent.  The Escrow Agent shall be
discharged from any further duties and liability under this Agreement.

                           (viii) This  Article may be amended or modified  only
if  such  amendment  shall  not  increase  Escrow  Agent's  responsibilities  or
liabilities  without Escrow Agent's prior written  consent.  If the Escrow Agent
does not agree to an  amendment  agreed upon by the parties  hereto,  the Escrow
Agent will resign and a successor Escrow Agent will be appointed.

                  (l)  Expenses of Escrow  Agent.  All fees and  expenses of the
Escrow  Agent  incurred  in the  ordinary  course of  performing  its duties and
obligations  hereunder will be paid by Parent upon receipt of a written  invoice
of the Escrow Agent.  Any other fees and expenses will be paid equally by Parent
on the one hand, and from the Escrow Fund, on the other hand,  upon receipt of a
written invoice of the Escrow Agent.

                  (m) Tax Qualification of the Escrow Fund.  Parent, Sub and the
Company intend that the Escrow Fund shall be administered so as to comply in all
material  respects  with the  guidelines  established  by the  Internal  Revenue
Service in Revenue Procedure 84-42, 1984-1 C.B. 521.

<PAGE>

                                   ARTICLE IX

                        TERMINATION, AMENDMENT AND WAIVER

         IX.1   Termination.  Except as  provided  in  Section  9.2  below, this
Agreement  may be terminated  and the Merger  abandoned at any time prior to the
Effective Time:

                  (a)  by mutual consent of Company and Parent;

                  (b)  by Parent or Company if: (i) the Closing has not occurred
before 5:00 p.m.  (Pacific  time) on June 30, 1998  (provided  that the right to
terminate this  Agreement  under this clause shall not be available to any party
whose willful failure to fulfill any obligation hereunder has been the cause of,
or  resulted  in, the failure of the  Effective  Time to occur on or before such
date);  (ii) there  shall be a final  nonappealable  order of a federal or state
court in effect  preventing  consummation of the Merger; or (iii) there shall be
any Law enacted, promulgated or issued or deemed applicable to the Merger by any
Governmental Entity that would make consummation of the Merger illegal;

                  (c)  by Parent if there shall be any action  taken, or any Law
enacted,  promulgated  or  issued  or  deemed  applicable  to the  Merger by any
Governmental  Entity,  which would: (i) prohibit Parent's or Company's ownership
or  operation of all or a material  portion of the business of Company,  or (ii)
compel  Parent or  Company  to  dispose  of or hold  separate  all or a material
portion  of the  business  or  assets  of  Company  or Parent as a result of the
Merger;

                  (d)  by  Parent  if  it is  not  in  material  breach  of  its
obligations  under this  Agreement  and there has been a material  breach of any
representation,  warranty,  covenant or agreement contained in this Agreement on
the part of the Company, provided that, if such breach is curable by the Company
through  the  exercise  of its  commercially  reasonable  efforts,  then for ten
business days during which the Company  continues to exercise such  commercially
reasonable  efforts,  Parent may not terminate this Agreement under this Section
9.1(d)  (provided  that,  no cure period shall be required for a breach which by
its nature cannot be cured); or

                  (e)  by  Company  if it is  not  in  material  breach  of  its
obligations  under this  Agreement  and there has been a material  breach of any
representation,  warranty,  covenant or agreement contained in this Agreement on
the part of Parent or Sub, provided that, if such breach is curable by Parent or
Sub through the exercise of its commercially  reasonable  efforts,  then for ten
business days during which Parent or Sub continue to exercise such  commercially
reasonable efforts,  Company may not terminate this Agreement under this Section
9.1(e)  (provided  that,  no cure period shall be required for a breach which by
its nature cannot be cured).

         IX.2  Effect  of  Termination.  In the  event  of  termination  of this
Agreement as provided in Section 9.1, this Agreement shall forthwith become void
and there shall be no  liability  or  obligation  on the part of Parent,  Sub or
Company, or their respective officers, directors or stockholders,  except as set
forth in Section  9.3;  provided  that each party  shall  remain  liable for any
breaches of this Agreement prior to its  termination,  and provided further that
the provisions of Sections 6.5, 6.6,  Article IX and Article X of this Agreement
shall  remain in full force and  effect  and  survive  any  termination  of this
Agreement.

         IX.3 Amendment. Except as is otherwise required by applicable law after
the  stockholders of Company approve this Agreement and except for  registration
rights,  this  Agreement  may be  amended by the  parties  hereto at any time by
execution of an  instrument  in writing  signed on behalf of each of the parties
hereto.  The registration  rights granted hereunder may be amended by Parent and
the Holders of a majority of the Registrable Shares then outstanding.

         IX.4 Extension; Waiver. At any time prior to the Effective Time, Parent
and Sub, on the one hand, and Company,  on the other, may, to the extent legally
allowed,  (i) extend the time for the  performance of any of the  obligations of
the other party hereto,  (ii) waive any inaccuracies in the  representations and
warranties  made to such party  contained  herein or in any  document  delivered
pursuant  hereto,  and (iii)  waive  compliance  with any of the  agreements  or
conditions for the benefit of such party contained herein.  Any agreement on the
part of a party  hereto to any such  extension  or waiver shall be valid only if
set forth in an instrument in writing signed on behalf of such party.
<PAGE>

         IX.5  Notice of  Termination.  Any  termination of this Agreement under
Section 9.1 above will be  effective  immediately  upon the  delivery of written
notice by the terminating party to the other parties hereto.


                                    ARTICLE X

                               GENERAL PROVISIONS

         X.1 Notices. All notices and other communications hereunder shall be in
writing  and shall be deemed  given if  delivered  personally  or by  commercial
delivery  service,  or mailed by  registered or certified  mail (return  receipt
requested) or sent via facsimile (with acknowledgment of complete  transmission)
to the parties at the following  addresses (or at such other address for a party
as shall be specified by like notice):

                    (a)      if to Parent or Sub, to:

                             PMC-Sierra, Inc.
                             105-8555 Baxter Place
                             Burnaby, British Columbia
                             Canada V5A 4V7
                             Attention:  President
                             Facsimile No.:  (604) 415-6240
                             Telephone No.: (604) 415-6000

                             with a copy to:

                             Wilson Sonsini Goodrich & Rosati, P.C.
                             650 Page Mill Road
                             Palo Alto, California 94304-1050
                             Attention:  Neil Wolff
                             Facsimile No.:  (650) 493-6811
                             Telephone No.: (650) 493-9300

                    (b)      if to the Company, to:

                             Integrated Telecom Technology, Inc.
                             18310 Montgomery Village Avenue
                             Suite 300
                             Gaithersburg, MD 20879
                             Attention:  President
                             Facsimile No.:  (301) 990-9877
                             Telephone No.: (301) 990-9890

                             with a copy to:

                             Testa, Hurwitz & Thibeault, LLP
                             High Street Tower
                             125 High Street
                             Boston, MA 02110
                             Attention:  Jonathan M. Moulton, Esq.
                             Facsimile No.:  (617) 248-7100
                             Telephone No.: (617) 248-7000

                             and a copy to the Major Stockholder as shown below
<PAGE>

                    (c)      if to the Major Stockholder, to:

                             Samsung Electronics Co., Ltd.
                             250, Taepyung-Ro, 2-KA
                             Chung-Ku, Seoul
                             Korea 100-742
                             Attention:  Yong Min Kim, Vice President
                             Facsimile No.:  011-8-22-726-3953
                             Telephone No.:  011-8-22-726-3850

                             with a copy to:

                             Howrey & Simon
                             1299 Pennsylvania Avenue, N.W.
                             Washington, DC 20004-2402
                             Attention:  Roger A. Klein, Esq.
                             Facsimile No.:  (202) 383-6610
                             Telephone No.: (202) 783-0800

                    (d)      if to the Escrow Agent, to:

                             Citicorp Trust, N.A., California
                             725 So. Figueroa Street
                             Los Angeles, California 90017
                             Attention:  Hilde Bender, V.P.
                             Facsimile No.:  (213) 683-1825
                             Telephone No.: (213) 239-1553

         X.2  Interpretation.  The words  "include,"  "includes" and "including"
when  used  herein  shall be deemed  in each  case to be  followed  by the words
"without  limitation."  The table of contents  and  headings  contained  in this
Agreement  are for  reference  purposes only and shall not affect in any way the
meaning or interpretation of this Agreement.

         X.3  Counterparts.  This  Agreement  may be  executed  in  one or  more
counterparts,  all of which shall be considered  one and the same  agreement and
shall become effective when one or more counterparts have been signed by each of
the parties and delivered to the other party.

         X.4  Entire  Agreement;   Assignment.   This  Agreement,   the  Company
Disclosure  Letter and Exhibits  hereto,  and the documents and  instruments and
other agreements among the parties hereto referenced  herein: (a) constitute the
entire agreement among the parties with respect to the subject matter hereof and
supersede all prior agreements and understandings,  both written and oral, among
the parties  with  respect to the subject  matter  hereof  except for the Mutual
Confidentiality  Agreement,  which  shall  remain in full  force  and  effect in
accordance with its terms;  (b) are not intended to confer upon any other person
any rights or remedies  hereunder,  except that holders of Company Capital Stock
shall be entitled to rely on Parent's and Sub's  representations  and warranties
contained  in  Article  IV herein  and to  enforce  Parent's  obligations  under
Sections 6.11, 6.12 and 6.13 hereof;  and (c) shall not be assigned by operation
of law or otherwise except as otherwise specifically  provided,  except that the
rights and  obligations  of Parent and Sub  hereunder  may be  assigned to their
wholly-owned subsidiaries.

         X.5 Severability.  In the event that any provision of this Agreement or
the  application  thereof,  becomes  or is  declared  by a  court  of  competent
jurisdiction  to be  illegal,  void  or  unenforceable,  the  remainder  of this
Agreement  will  continue in full force and effect and the  application  of such
provision to other persons or circumstances will be interpreted so as reasonably
to effect the intent of the parties hereto. The parties further agree to replace
such  void or  unenforceable  provision  of  this  Agreement  with a  valid  and
enforceable  provision that will achieve, to the extent possible,  the economic,
business and other purposes of such void or unenforceable provision.
<PAGE>

         X.6 Other Remedies.  Except as otherwise  provided herein,  any and all
remedies herein expressly  conferred upon a party will be deemed cumulative with
and not exclusive of any other remedy conferred hereby, or by law or equity upon
such party,  and the exercise by a party of any one remedy will not preclude the
exercise of any other remedy.

         X.7 Governing Law. This Agreement shall be governed by and construed in
accordance  with the laws of the State of Delaware,  regardless of the laws that
might otherwise govern under applicable principles of conflicts of laws thereof.
Each of the parties  hereto  agrees that  process may be served upon them in any
manner  authorized  by the laws of the State of  Delaware  for such  persons and
waives  and  covenants  not to assert or plead any  objection  which  they might
otherwise have to such process.

         X.8 Rules of Construction. The parties hereto agree that they have been
represented  by counsel during the  negotiation  and execution of this Agreement
and, therefore, waive the application of any law, regulation, holding or rule of
construction  providing that  ambiguities in an agreement or other document will
be construed against the party drafting such agreement or document.

         X.9 Specific  Performance.  The parties  hereto agree that  irreparable
damage  would occur in the event that any of the  provisions  of this  Agreement
were not performed in accordance  with their  specific  terms or were  otherwise
breached.  It is  accordingly  agreed that the  parties  shall be entitled to an
injunction or injunctions  to prevent  breaches of this Agreement and to enforce
specifically  the terms and  provisions  hereof,  this being in  addition to any
other remedy to which they are entitled at law or in equity.


<PAGE>

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
signed by their duly authorized  respective  officers,  all as of the date first
written above.

INTEGRATED TELECOM
TECHNOLOGY, INC.                     PMC-SIERRA, INC.

By    /s/ Kenneth K. Lee             By    /s/ Robert L. Bailey
      ---------------------------          -------------------------------------

Name  Kenneth K. Lee                 Name  Robert L. Bailey
      ---------------------------          -------------------------------------

Title President                      Title President and Chief Executive Officer
      ---------------------------          -------------------------------------


Solely for the purposes of Sections  2.6(d),  6.1(b),  6.4, 6.5,  6.16,  7.2 and
   Article VIII:

SAMSUNG ELECTRONICS CO., LTD.        PMC-SIERRA (MARYLAND), INC.

By    /s/ Yong Min Kim               By    /s/ Robert L. Bailey         
      ---------------------------          -------------------------------------

Name  Yong Min Kim                   Name  Robert L. Bailey             
      ---------------------------          -------------------------------------
                                                                        
Title Vice President                 Title President and Chief Executive Officer
      ---------------------------          -------------------------------------


With respect to the matters set forth in Article VIII only:

CITICORP TRUST, N.A., CALIFORNIA, as Escrow Agent

By    /s/ Hilde Bender    
      ---------------------------

Name  Hilde Bender
      ---------------------------

Title Vice President    
      ---------------------------

SECURITYHOLDER AGENT

/s/ Lee Lambert
- -----------------------------------
LEE LAMBERT





CONSENT OF INDEPENDENT ACCOUNTANTS

We consent to the  incorporation by reference in the registration  statements on
Form  S-8  (File  Nos.  33-80992,  33-94790,   33-41027,  33-80988,   333-13387,
333-13357,  333-13359,  333-34671) and Form S-3 (File Nos.  33-86930,  33-90392,
33-96620,   33-97490  and  333-15519)  of  PMC-Sierra,   Inc.  (formerly  Sierra
Semiconductor  Corporation) of our report,  dated February 20, 1998,  except for
Note 15 as to which the date is April 15,  1998,  on our audit of the  financial
statements of Integrated  Telecom  Technology,  Inc. as of December 31, 1996 and
1997 and for the years then ended,  which  report is  included  in this  current
report on Form 8-K for PMC-Sierra, Inc.


                                        /s/ Coopers & Lybrand, L.L.P.

Washington, D.C.
June 2, 1998




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