PMC SIERRA INC
8-K/A, 2000-08-07
SEMICONDUCTORS & RELATED DEVICES
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                 ______________________________________________

                                  UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D. C. 20549

                                  Form 8 - K/A1

                                 CURRENT REPORT

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

                Date of Report (Date of earliest event reported)
                                  August 4, 2000

                                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.
----------------------- ----------------------- --------------------------------

                            900 East Hamilton Avenue
                                    Suite 250
                               Campbell, CA 95008

                    (address of principal executive offices)

         Company's telephone number, including area code: (408) 626-2000


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


<PAGE>


This current report on Form 8-K/A1 amends the current report in it's entirety on
Form 8-K filed by PMC-Sierra, Inc. ("PMC") on June 27, 2000 to add the financial
statements  of the  business  acquired  required  by Item 7(a) and the pro forma
financial information required by Item 7(b).

Item 2.  Acquisition or Disposition of Assets

On June 13,  2000,  the Company  entered  into a  definitive  agreement  for the
purchase of Malleable Technologies,  Inc.'s ("Malleable") outstanding common and
preferred  shares not already  owned by PMC.  The  purchase  price  consisted of
approximately  1,693,000  shares  of PMC  common  stock,  options  and  warrants
pursuant  to the  exercise  of a call  option  held by  PMC.  The  purchase  was
completed on June 27, 2000. Malleable is a fabless  semiconductor located in San
Jose,    California.    Malleable   makes   digital   signal    processors   for
voice-over-packet processing applications which bridge voice and high speed data
networks by compressing voice traffic into ATM or IP packets.

An employee of PMC had served as a director  of  Malleable  since PMC made a 15%
investment in Malleable in July 1999.

PMC will account for the merger as a purchase.  PMC expects to record a one-time
charge  to  earnings  during  the  third  quarter  of  fiscal  2000  due  to the
acquisition of technology  that has not reached  technological  feasibility  and
that has no  alternative  future use. The final amount of the charge has not yet
been determined.  The Merger is intended to constitute a tax-free reorganization
under Section 368(a) of the Internal Revenue Code.

Item 7. Financial Statements and Exhibits.

(a)      Financial Statements of Businesses Acquired

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

          -  Audited  balance  sheets as of December 31, 1999 and 1998
          -  Audited  statements of operations,  stockholders'  deficit and cash
             flows for the years ended December 31, 1999 and 1998 and cumulative
             from  July 31,  1997  (inception)  through  December  31,  1999.
          -  Unaudited  balance  sheet as of March  31,  2000 and the  unaudited
             statements of operations, and cash flows for the three months ended
             March 31, 2000 and 1999.

(b)      Pro Forma Financial Information

         Pursuant  to  paragraph  (b)(1)  of Item 7,  the  unaudited  pro  forma
         combined  balance  sheet of the PMC and  Malleable as at March 26, 2000
         and the unaudited pro forma  combined  statements of operations for the
         three  months  ended  March 26,  2000 and for the year  ended  December
         31,1999  are  attached.  The  unaudited  pro forma  combined  financial
         statements  give  effect to the  merger of the PMC and  Malleable  on a
         purchase accounting basis. The pro forma combined balance sheet assumes
         the merger took place on March 26, 2000 and combines the March 26, 2000
         balance  sheet of the PMC with the  March  31,  2000  balance  sheet of
         Malleable.  The pro forma  combined  statement  of  operations  for the
         fiscal year ended December  31,1999 assumes the merger took place as of
         the beginning of the fiscal year and combines the historical  operating
         results of the PMC and  Malleable  for the fiscal  year ended  December
         31,1999 with pro forma adjustments. The pro forma combined statement of
         operations for the three months ended March 26, 2000 assumes the merger
         took place as of the  beginning of the most recently  completed  fiscal
         year and combines the PMC's historical  operating results for the three
         months  ended March 26, 2000 and  Malleable  for the three months ended
         March 31, 2000 with pro forma adjustments.
<PAGE>

         The pro forma  information is presented for illustrative  purposes only
         and is not necessarily indicative of the operating results or financial
         position that would have occurred had the  acquisition  of Malleable by
         the PMC been consummated at the beginning of the periods presented, nor
         is it necessarily  indicative of future operating  results or financial
         position.  These pro forma financial statements are based on and should
         be read  with the  historical  combined  financial  statements  and the
         related notes thereto of the PMC and Malleable.


<PAGE>

--------------------------------------------------------------------------------
    MALLEABLE TECHNOLOGIES, INC.

    (A Development Stage Company)

    Financial Statements for the Years Ended
    December 31, 1999 and 1998 and
    Cumulative from July 31, 1997 (Inception)
    Through December 31, 1999 and
    Independent Auditors' Report


<PAGE>


INDEPENDENT AUDITORS' REPORT

To the Board of Directors and Shareholders
   of Malleable Technologies, Inc.:

We have audited the accompanying balance sheets of Malleable Technologies, Inc.,
formerly  Malleable  Microsystems,  Inc.  (a  development  stage  company)  (the
"Company")  as of  December  31,  1999 and 1998 and the  related  statements  of
operations,  shareholders'  equity  and cash  flows for the years then ended and
cumulative  from July 31, 1997  (inception)  through  December 31,  1999.  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
in the  United  States of  America.  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.

In our opinion,  the financial  statements  referred to above present fairly, in
all material respects, the financial position of Malleable Technologies, Inc. at
December 31, 1999 and 1998 and the results of its  operations and its cash flows
for the years then ended and cumulative from July 31, 1997  (inception)  through
December 31, 1999 in conformity with generally accepted accounting principles in
the United States of America.

/s/ DELOITTE & TOUCHE LLP

San Jose, California
March 10, 2000

(June 13, 2000 as to the second paragraph of Note 9)



<PAGE>

MALLEABLE TECHNOLOGIES, INC.

(Formerly Malleable Microsystems, Inc.)
(A Development Stage Company)

BALANCE SHEETS
DECEMBER 31, 1999 AND 1998
--------------------------------------------------------------------------------

ASSETS                                                  1999             1998

CURRENT  ASSETS:
  Cash and equivalents                               $ 3,170,682       $ 766,732
  Accounts receivable and prepaid expenses                63,227          17,800
                                                       ---------        --------
           Total current assets                        3,233,909         784,532

PROPERTY  AND  EQUIPMENT,  Net                           911,883         144,425

OTHER  ASSETS                                            206,671          60,647
                                                       ---------        --------
TOTAL                                                $ 4,352,463       $ 989,604
                                                       =========       =========

LIABILITIES AND SHAREHOLDERS' EQUITY

CURRENT  LIABILITIES:
  Accounts payable and accrued liabilities           $   523,746       $ 180,955
  Deferred revenue                                        15,000          42,500
  Current portion of capital lease obligations            14,144            -
                                                       ---------         -------
           Total current liabilities                     552,890         223,455
                                                       ---------        --------

NOTES  PAYABLE                                           325,000         425,000

CAPITAL  LEASE  OBLIGATIONS                               11,786            -

SHAREHOLDERS'  EQUITY:
  Convertible preferred stock, no par value;
    authorized 7,631,758 shares in 1999
    and 5,000,000 shares in 1998:
      Series A - 952,381 shares designated;
        shares issued and outstanding:
        952,381 in 1999 and 1998 (aggregate
        liquidation preference of $437,000)              375,469         375,469
      Series B - 6,679,377 shares designated;
        shares issued and outstanding:
        3,451,855 in 1999 and none in 1998 (aggregate
        liquidation preference of $7,162,000)          6,937,043            -
  Common stock, no par value; authorized
    20,000,000 shares in 1999 and
    11,000,000 shares in 1998; shares issued
    and outstanding: 7,104,000 in
    1999 and 6,488,000 in 1998                            45,673          13,180
  Warrants                                                19,252            -
  Deficit accumulated during the development stage    (3,914,650)       (47,500)
                                                     -----------        --------
           Total shareholders' equity                  3,462,787         341,149
                                                     -----------         -------
TOTAL                                                $ 4,352,463       $ 989,604
                                                     ============       ========

See notes to financial statements.



<PAGE>


MALLEABLE TECHNOLOGIES, INC.
(Formerly Malleable Microsystems, Inc.)
(A Development Stage Company)


STATEMENTS OF OPERATIONS
YEARS ENDED DECEMBER 31, 1999 AND 1998 AND CUMULATIVE FROM
JULY 31, 1997 (INCEPTION) THROUGH DECEMBER 31, 1999
--------------------------------------------------------------------------------

                                                                    Cumulative
                                                                       from
                                                                     July 31,
                                                                       1997
                                                                    (Inception)
                                               Years Ended            Through
                                              December 31,          December 31,
                                        -----------------------
                                             1999         1998           1999

NET REVENUE - Related party               $ 175,682   $ 415,450       $ 596,132

COSTS  AND  EXPENSES:
  Cost of revenue                            52,002     328,734         385,736
  Research and development                2,885,196      45,000       2,930,196
  Selling, general and administrative     1,053,175      83,093       1,137,056
                                         ----------     -------      ----------
           Total costs and expenses       3,990,373     456,827       4,452,988
                                         ----------    --------      ----------
LOSS  FROM  OPERATIONS                  (3,814,691)    (41,377)     (3,856,856)

INTEREST EXPENSE,  Net                     (51,659)     (3,735)        (55,394)
                                         ----------    --------      ----------
LOSS  BEFORE  INCOME  TAXES             (3,866,350)    (45,112)     (3,912,250)

INCOME  TAXES                                   800         800           2,400
                                        -----------    --------     -----------
NET  LOSS                             $ (3,867,150)  $ (45,912)   $ (3,914,650)
                                        ===========  ==========     ===========

See notes to financial statements.


<PAGE>
<TABLE>


MALLEABLE TECHNOLOGIES, INC.

(Formerly Malleable Microsystems, Inc.)
(A Development Stage Company)

STATEMENTS OF SHAREHOLDERS' EQUITY
PERIOD FROM JULY 31, 1997 (INCEPTION) THROUGH DECEMBER 31, 1999
------------------------------------------------------------------------------------------------------------------------------------
<CAPTION>
                                                                                                                Deficit
                                                                                                              Accumulated
                                                                                                                During
                                                                                                     Deferred     the
                                        Convertible Preferred Stock                                  Stock       Develop-
                                ---------------------------------------                              ompen-      ment
                                      Series A            Series B         Common Stock    Warrants  ation       Stage         Total
                                ----------------     ------------------ ------------------
<S>                               <C>      <C>       <C>        <C>        <C>     <C>        <C>     <C>      <C>        <C>

                                Shares    Amount    Shares     Amount    Shares   Amount
July 31,1997 - Issuance of
 common stock upon
 incorporation to founder
 in exchange for technology
 and cash                          -     $  -          -   $     -     6,000,000 $  10,000     -     $  -   $      -     $   10,000

Net loss                                                                                                         (1,588)     (1,588)
                               ------- -------- ---------- ---------- ---------- --------- --------  ------ ------------  ----------
BALANCES,  December 31, 1997       -       -          -          -     6,000,000    10,000     -       -         (1,588)      8,412

November 5,1998 - Issuance
 of Series A preferred stock
 for cash at $0.42 per share,
 net of issuance costs
 of $24,531                    952,381   375,469      -          -                                                          375,469

Exercise of common stock
 options                                                                 488,000     3,180                                    3,180

Net loss                                                                                                        (45,912)    (45,912)
                               ------- -------- ---------- ---------- ---------- --------- --------  ------ ------------  ----------
BALANCES, December 31,1998     952,381   375,469                       6,488,000    13,180      -       -       (47,500)    341,149

July 6, 1999 - Issuance of
 Series B preferred stock
 for cash at $2.00 per share                     2,000,000  4,000,000                                                     4,000,000

July 6, 1999 -  Issuance
 of Series B preferred
 stock at $1.80 per share
 upon conversion of a note                         234,355    421,839                                                       421,839

July 27, 1999 - Issuance
 of Series B preferred
 stock for cash at
 $2.00 per share                                 1,217,500  2,435,000                                                     2,435,000

Conversion discount on
 convertible notes                                             80,204                                                        80,204

June 1,1999 - Issuance of
 warrants                                                                                    19,252                          19,252

Deferred stock compensation                                                          2,893           (2,893)                    -

Amortization of stock
 compensation                                                                                         2,893                   2,893

Exercise of common stock
 options                                                                 616,000    29,600                                   29,600

Net loss                                                                                                     (3,867,150) (3,867,150)
                               ------- -------- ---------- ---------- ---------- --------- --------  ------ ------------  ----------
BALANCES, December 31,1999     952,381 $375,469  3,451,855 $6,937,043  7,104,000 $  45,673 $ 19,252  $  -   $(3,914,650) $3,462,787
                               ======= ======== ========== ========== ========== ========= ========  ====== ============  ==========

<FN>

See notes to financial statements.
</FN>
</TABLE>

<PAGE>
<TABLE>


MALLEABLE TECHNOLOGIES, INC.

(Formerly Malleable Microsystems, Inc.)
(A Development Stage Company)

STATEMENTS OF CASH FLOWS

YEARS ENDED DECEMBER 31, 1999 AND 1998 AND CUMULATIVE FROM JULY 31, 1997
(INCEPTION)THROUGH DECEMBER 31, 1999
----------------------------------------------------------------------------------------------------------------
<CAPTION>

                                                                                                   Cumulative
                                                                                                      from
                                                                                                    July 31,
                                                                                                      1997
                                                                                                   (Inception)
                                                                  Years Ended                       Through
                                                                  December 31,                     December 31,
                                                                 ----------------------------
<S>                                                                     <C>            <C>               <C>
                                                                        1999           1998              1999
CASH  FLOWS  FROM  OPERATING  ACTIVITIES:
  Net loss                                                          $(3,867,150)   $ (45,912)      $ (3,914,650)
  Adjustments to reconcile net loss to net cash provided
    by (used in) operating activities:
    Depreciation and amortization                                       126,591        4,967            132,180
    Noncash interest expense                                             21,839           -              21,839
    Conversion discount on conversion notes                              80,204           -              80,204
    Issuance of warrants                                                 11,683           -              11,683
    Loss on sale of property and equipment                                5,648           -               5,648
    Stock based compensation expense                                      2,893           -               2,893
    Changes in assets and liabilities:
      Accounts receivable and prepaid expense                           (37,858)     (12,800)           (55,658)
      Accounts payable and accrued liabilities                          342,791      169,866            523,746
      Deferred revenue                                                  (27,500)      42,500             15,000
                                                                     -----------     -------           --------
       Net cash provided by (used in) operating activities           (3,340,859)     158,621         (3,177,115)
                                                                     -----------     -------          ----------

CASH  FLOWS  FROM  INVESTING  ACTIVITIES:
  Purchases of property and equipment                                  (890,567)     147,799)        (1,038,366)
  Other assets                                                         (155,154)     (48,639)          (210,016)
                                                                      ----------     --------         ----------
Net cash used in investing activities                                (1,045,721)    (196,438)        (1,248,382)
                                                                     -----------     --------        -----------

CASH  FLOWS  FROM  FINANCING  ACTIVITIES:
  Proceeds from debt                                                    325,930       425,000           750,930
  Issuance of common stock                                               29,600         3,180            34,780
  Proceeds from sale of preferred stock, net                          6,435,000       375,469         6,810,469
                                                                     -----------     --------        ----------
           Net cash provided by financing activities                  6,790,530       803,649         7,596,179
                                                                     -----------     --------        ----------

NET  INCREASE  IN  CASH  AND  EQUIVALENTS                             2,403,950       765,832         3,170,682

CASH  AND  EQUIVALENTS,  Beginning of period                            766,732           900              -
                                                                      ---------    ----------       -----------
CASH  AND  EQUIVALENTS,  End of period                              $ 3,170,682    $  766,732       $ 3,170,682
                                                                    ============   ==========       ===========

SUPPLEMENTAL  DISCLOSURES  OF  CASH  FLOW
  INFORMATION:
    Cash paid for income taxes                                      $       800    $      800       $     2,400
                                                                    ===========    ==========       ===========
    Cash paid for interest                                          $       225    $    7,035       $     7,260
                                                                    ===========    ==========       ===========

SUPPLEMENTAL  DISCLOSURES  OF NON  CASH  TRANSACTIONS -
  Common stock issued in exchange for intellectual property         $       -      $     -          $     8,000
                                                                    ===========    ==========       ===========
  Conversion of note payable and accrued interest
    to convertible preferred stock                                  $   421,839    $     -          $   400,000
                                                                    ===========    ==========        ==========
  Property acquired under capital leases                            $    27,000    $     -          $    27,000
                                                                    ===========    ==========        ==========
<FN>

See notes to financial statements.
</FN>
</TABLE>


<PAGE>


Malleable Technologies, Inc.
(A Development Stage Company)

NOTES TO FINANCIAL STATEMENTS
PERIOD FROM JULY 31, 1997 (INCEPTION) THROUGH DECEMBER 31, 1999
--------------------------------------------------------------------------------

1.    ORGANIZATION  AND  SIGNIFICANT  ACCOUNTING  POLICIES

      Organization and Basis of Presentation - Malleable Technologies, Inc. (the
      "Company"),  formerly  Malleable  Microsystems,  Inc., was incorporated in
      California  on July  31,  1997 to  develop  and  market  a  reconfigurable
      hardware platform that is as efficient in performance, cost, and power, as
      hardwired  application  specific integrated circuits (ASIC's) and provides
      customers  with  a  fast  time  to  market  for  complex,  multi-protocol,
      computation  intensive  product  applications  in digital  communications,
      networking,   multi-media  and  security  markets.   In  1999,   Malleable
      Microsystems,  Inc. changed its name to Malleable  Technologies,  Inc. The
      Company's  primary  activities  to date have  consisted  of  research  and
      development,  as well as certain consulting  services provided pursuant to
      an agreement with one customer. The Company follows Statement of Financial
      Accounting   Standards  ("SFAS")  No.  7,  "Accounting  and  Reporting  by
      Development Stage Enterprises."

      The Company is subject to the risks  associated  with a development  stage
      enterprise,  including  the need to  demonstrate  and refine its  product,
      develop its marketing and distribution channels, expand its management and
      technical team and continue to raise sufficient financing.

      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.

      Cash and  Equivalents  - The  Company  considers  all highly  liquid  debt
      instruments purchased with an original maturity of three months or less to
      be cash equivalents.

      Concentration  of Credit Risk -  Financial  instruments  that  potentially
      subject the Company to concentrations  of credit risk consist  principally
      of cash and  equivalents.  Risks  associated with cash and equivalents are
      mitigated by banking with creditworthy institutions.

      Property  and  Equipment  -  Property  and  equipment  are stated at cost.
      Equipment  acquired under capital lease obligations is stated at the lower
      of fair value or the present value of future minimum lease payments at the
      inception of the lease.  Depreciation  is computed using the straight line
      method over estimated  useful lives of five to seven years.  An impairment
      loss is recognized  when  estimated  future cash flows  expected to result
      from the use of the asset including disposition, is less than the carrying
      value of the asset.

      Revenue  Recognition - The Company recognizes  consulting service revenues
      as services are performed.

      Deferred Revenue - Deferred revenue represents  payments received from the
      customer prior to performance of the services.

<PAGE>

      Income  Taxes - The Company  accounts  for income taxes using an asset and
      liability  approach.  Deferred tax  liabilities  are recognized for future
      taxable  amounts  and  deferred  tax  assets  are  recognized  for  future
      deductions and operating loss carryforwards,  net of a valuation allowance
      to reduce net deferred tax assets to amounts that are more likely than not
      to be realized.

      Research and Development - Research and  development  expenses are charged
      to operations as incurred.

      Stock-Based  Compensation - The Company accounts for stock-based awards to
      employees  using the intrinsic value method in accordance with APB No. 25,
      "Accounting for Stock Issued to Employees."

      Recently  Issued  Accounting  Standards - In June 1998 and June 1999,  the
      FASB issued SFAS No.  133,  "Accounting  for  Derivative  Instruments  and
      Hedging   Activities,"  and  SFAS  No.  137,  "Accounting  for  Derivative
      Instruments  and Hedging  Activities - Deferral of the  Effective  Date of
      FASB Statement No. 133," respectively.  These statements require companies
      to record  derivatives  on the  balance  sheet as  assets or  liabilities,
      measured  at fair value.  Gains or losses  resulting  from  changes in the
      values of those derivatives would be accounted for depending on the use of
      the derivative and whether it qualifies for hedge accounting. SFAS will be
      effective  for  the  Company's  fiscal  year  ending  December  31,  2001.
      Management is in the process of evaluating the impact of these  statements
      on the Company's financial position, results of operations and cash flows.

2.    PROPERTY  AND  EQUIPMENT

      Property and equipment at December 31 consist of the following:

                                                   1999            1998

        Computer hardware and software         $ 964,032        $131,528
        Furniture and fixtures                    37,545           9,364
        Office equipment                          28,850           6,907
                                                 -------         -------

        Total                                  1,030,427         147,799
        Accumulated depreciation                (118,544)         (3,374)
                                                --------         -------

        Property and equipment, net           $  911,883       $ 144,425
                                              ==========       =========

      At December 31, 1999,  the Company had assets under  capital  lease with a
      net  book  value  of  $26,000   (net  of   accumulated   amortization   of
      approximately $1,000).

3.    DEVELOPMENT AGREEMENTS

      In February 1998, the Company entered into a development agreement with an
      unrelated  third  party to design and  develop  certain  products  for the
      customer's  video-on-demand  system.  The agreement  precludes the Company
      from  developing such products for certain other third parties without the
      written  approval  of the  customer  for a period  of two  years  from the
      earlier  of the  date  of the  delivery  of the  products  or the  date of
      termination of the agreement. Under the terms of the agreement the Company
      receives  consulting fees for each week of service  provided and incentive
      payments based on meeting certain milestones as defined.

      The agreement  was amended in June 1998.  In addition to the  deliverables
      under the original contract,  the amendment requires the Company to design
      and develop its proprietary  programmable  hardware technology for certain
      specific  customer  related uses. The amendment also precludes the Company
      from providing similar design services,  delivering  related technology or
      selling  the  developed  customer  chips for a period of one,  one and two
      years, respectively, from the date of the amendment.

      In November  1998, in connection  with a round of financing,  the customer
      invested  in the  Series A  preferred  stock  (see Note 5) and  loaned the
      Company $400,000 under a convertible note (See Note 4).

      Revenues  under the  development  agreement were $175,682 and $415,450 for
      fiscal years 1999 and 1998, respectively.

<PAGE>

4.    NOTES PAYABLE

      Notes payable at December 31 consist of the following:

                                                     1999             1998

        Convertible note payable                  $ 300,000         $    -
        Convertible note payable to a related
                party (see Note 3)                       -            400,000
        Note payable                                 25,000            25,000
                                                   --------         ---------
        Total                                     $ 325,000         $ 425,000
                                                  =========         =========

      Convertible Note Payable

      In April 1999, the Company entered into a convertible  note payable with a
      third party. Interest on the unpaid principal balance accrues monthly at a
      rate of 8% per annum,  compounded monthly.  This note becomes due upon the
      earlier  of  (a)  the  acquisition  of  the  Company,   (b)  the  sale  of
      substantially  all of the assets of the Company,  or (c) April 9, 2003. In
      the event that the Company  sells  shares of its Series B preferred  stock
      for aggregate gross proceeds of at least $1 million, then at the option of
      the noteholder,  the outstanding principal balance shall be converted into
      shares of Series B preferred stock at a conversion price equal to 90%, 85%
      and 80% of the Series B closing  price if sale of the  Series B  preferred
      stock takes place (a) within 120 days,  (b) between and including 121 days
      and 210 days, and (c) more than 210 days, respectively, after the issuance
      of the note. The note is unsecured.  Upon the sale of the Company's Series
      B  preferred  stock  in  July  1999,  the  note  became  convertible.  The
      conversion  discount  of  $33,333  was  recognized  as a noncash  interest
      expense  with  a  corresponding  increase  in  the  convertible  Series  B
      preferred stock in 1999. This note was subsequently  converted into Series
      B preferred stock after the financial year end (see Note 9).

      Convertible Note Payable to a Related Party

      In  conjunction  with the sale of Series A preferred  stock on November 5,
      1998, the Company entered into a convertible  note payable with the Series
      A  preferred  stock  investor.  Interest on the unpaid  principal  balance
      accrues monthly at a rate of 8% per annum,  compounded monthly.  This note
      becomes due upon the earlier of (a) the  acquisition  of the Company,  (b)
      the  sale  of  substantially  all of the  assets  of the  Company,  or (c)
      November 5, 2002. In the event that the Company sells shares of its Series
      B preferred  stock for  aggregate  gross  proceeds of at least $1 million,
      then at the option of the noteholder,  the outstanding  principal  balance
      shall be converted into shares of Series B preferred stock at a conversion
      price equal to 90% of the Series B closing price.  This note is secured by
      the  intellectual  property of the Company (See Note 3). In July 1999,  an
      aggregate of $421,839  ($400,000 of the original principal of the Note and
      $21,839 of accrued  interest) were converted into 234,355 shares of Series
      B preferred  stock.  The Company  recognized  the  conversion  discount of
      $46,871 as a noncash interest expense with a corresponding increase in the
      convertible Series B preferred stock.

      Notes Payable

      The Company has a $25,000 note payable to a related  party who is a family
      member of the Company's founder and president.  This note accrues interest
      at a rate of 8% per annum.

5.    SHAREHOLDERS'  EQUITY

      Convertible Preferred Stock and Warrants

      During June 1999,  the Company  authorized  the sale and issuance of up to
      7,631,758  shares of its preferred  stock,  comprising  952,381  shares of
      Series A preferred stock and 6,679,377 shares of Series B preferred stock.
      In July 1999,  the Company issued  3,451,855  shares of Series B preferred
      stock for cash of  $6,435,000  and the  conversion  of a note  payable  of
      $421,839.

      Significant terms of the outstanding preferred stock are as follows:

      -  Each share of convertible preferred stock is convertible into shares of
         common stock on a one-for-one  basis,  subject to adjustment in certain
         instances,  at the  option  of the  shareholder.  Such  shares  will be
         converted  automatically  upon the sale of the  Company's  common stock
         pursuant to a registration  statement  under the Securities Act of 1933
         meeting certain  criteria or the  affirmative  vote of the holders of a
         majority of the shares of preferred  stock  outstanding  at the time of
         such vote.
<PAGE>

      -  Each share of convertible  preferred stock has voting rights equivalent
         to the number of shares of common stock into which it is convertible.

      -  Shareholders  are  entitled  to  receive  noncumulative   dividends  as
         declared by the Board of Directors out of any assets legally available,
         prior  to and  in  preference  to any  declaration  or  payment  of any
         dividend on the common stock. The dividend rate for Series A and Series
         B  preferred  stock per share  per  annum is 8% of the  original  issue
         price. No dividends have been declared as of December 31, 1999.

      -  In the event of liquidation,  dissolution or winding up of the Company,
         shareholders  of Series A and Series B preferred  stock are entitled to
         receive the  original  issue  price  ($0.42 per share and $2 per share,
         respectively),  an additional  amount equal to 8% per annum  compounded
         annually  from the issue date of such shares for each share of Series A
         and Series B preferred  stock held by them, and any declared and unpaid
         dividends  with respect to such  shares.  If the assets and funds to be
         distributed  are  insufficient  to permit full payment,  then the funds
         shall be  distributed  on a pro rata  basis  among the  holders  of the
         Series A preferred  stock and Series B preferred stock in proportion to
         the  preferential  amount  each such  holder is  otherwise  entitled to
         receive. Upon completion of the distribution,  the holders of preferred
         stock will be entitled to a pro rata distribution  until the holders of
         Series A preferred  stock and Series B preferred  stock have received a
         total of $1.26 and $6.00 per share, respectively.  Any remaining assets
         shall be  distributed to the holders of the common stock of the Company
         on a pro rata basis.

      In connection with a sales  representative  agreement  entered into by the
      Company and a third party in May 1999, the Company granted the third party
      warrants to purchase  25,000  shares of Series B preferred  stock at $2.00
      per share. The warrants vest immediately upon issuance and expire in three
      years. The estimated fair value of this warrant of $19,252 was included in
      accounts  receivable and prepaid expenses at December 31, 1999 and will be
      amortized  to  selling  expense  over the one  year  period  of the  sales
      representative  agreement.   Selling  expense  in  1999  includes  $11,683
      relating to the amortization expense of the above warrant.

      Stock Option Plan

      In 1998, the Company adopted a stock option plan, which includes incentive
      and  nonstatutory   stock  options  and  restricted  stock,  and  reserved
      3,600,000 shares of common stock for issuance.  Under the Plan,  officers,
      employees,  directors and  consultants  may be granted options to purchase
      shares of the Company's  common stock.  Options may be granted at not less
      than fair market value for  incentive  stock options and not less than 85%
      of fair market value for  nonstatutory  stock options at the date of grant
      as determined by the Board of Directors.  The options generally expire ten
      years from the date of grant.  Incentive  stock  options and  nonstatutory
      options  normally  vest at various  rates over  three to four  years.  The
      Company also sells  restricted  stock subject to  repurchase  rights which
      generally  lapse over a period of time.  At  December  31,  1999,  724,219
      shares were subject to a right of repurchase.

      The Company  granted  options to purchase  42,250  shares of common  stock
      under the plan to  nonemployees  for  services  performed  as of the grant

<PAGE>

      date. Stock-based  compensation expense of $2,893 relating to these grants
      was recognized in 1999.

      A summary of option and  restricted  stock  activity  under the Plan is as
      follows:

                                                                     Weighted
                                                                      Average
                                                         Number       Exercise
                                                       of Shares        Price

Balances, December 31, 1997                                 -         $  -

Granted (weighted average fair value of $0.002)
  per share                                            1,279,200        0.02
  Exercised                                             (488,000)       0.01
                                                       ----------
Balances, December 31, 1998                              791,200        0.03

Granted (weighted average fair value of $0.06)
  per share                                            1,377,250        0.14
Exercised                                               (616,000)       0.05
Cancelled                                                (75,000)       0.25
                                                       ----------

Balances, December 31, 1999                            1,477,450      $ 0.11
                                                       ==========


      Additional  information  regarding options  outstanding as of December 31,
      1999 is as follows:

                    Options Outstanding                     Options Exercisable
  ---------------------------------------------------    -----------------------
                              Weighted
   Range                       Average      Weighted                    Weighted
    of                        Remaining      Average                    Average
 Exercise       Number       Contractual    Exercise        Number      Exercise
  Prices     Outstanding    Life (Years)      Price      Exercisable     Price

   $0.01          361,200        8.8          $0.01          113,283      $0.01
   $0.05          590,000        9.2          $0.05           60,391      $0.05
   $0.25          526,250        9.8          $0.25           11,875      $0.25
 --------       ----------       ---        -------         --------     -------
$0.01-$0.25      1,477,450       9.3         $ 0.11          185,549     $ 0.04
===========     ==========       ===        =======         ========     =======



      At December 31, 1999, 1,018,550 shares were available for future grant.

      Additional Stock Plan Information

      As discussed in Note 1, the Company  accounts for its  stock-based  awards
      using the intrinsic value method in accordance with Accounting  Principles
      Board Opinion No. 25,  "Accounting for Stock Issued to Employees," and its
      related  interpretations.  Accordingly,  no compensation  expense has been
      recognized in the financial  statements  for employee  stock  arrangements
      because the stock option  exercise  price was not less than the fair value
      of the underlying common stock at the date of the grant.

      Statement of  Financial  Accounting  Standards  No. 123,  "Accounting  for
      Stock-Based Compensation" (SFAS 123), requires the disclosure of pro forma
      net  loss as if the  Company  had  adopted  the  fair  value  method.  The
      Company's  calculations  were made using the minimum value method with the
      following  weighted  average  assumptions:   expected  life,  four  years;
      risk-free  interest rate,  5%; and no dividends  during the expected term.
      The  Company's  calculations  are  based on a  multiple  option  valuation
      approach,  and  forfeitures  are recognized as they occur. If the computed
      fair values of the awards had been  amortized  to expense over the vesting
      periods of the awards,  pro forma net loss would not have been  materially
      different from the amounts  reported for the years ended December 31, 1999
      and 1998.

      Common Stock

      At the  inception  of  the  Company,  the  Company's  founder  contributed
      technology and cash in exchange for 6,000,000 shares of common stock.

      The Company has reserved the following  shares of authorized  but unissued
      common stock as of December 31, 1999:

        Convertible preferred stock                              4,404,236
        Options available under the stock option plan            1,018,550
        Options issued and outstanding                           1,477,450
        Warrants issued and outstanding                             25,000
                                                                 ---------
                                                                 6,925,236
                                                                 =========
<PAGE>


6.    CALL  OPTION

      In conjunction  with the sale of the Company's Series B preferred stock in
      July 1999,  the Company,  certain  common  stockholders  and the preferred
      stockholders  granted  to one  of  the  Series  B  preferred  stockholders
      ("Investor") an irrevocable  option to purchase  substantially  all of the
      Company's  outstanding  capital stock. The option expires on July 6, 2000.
      The Investor may exercise the option at any time during the option period.
      The purchase  price is equal to a fixed number of shares of the Investor's
      common stock (such shares having an aggregate fair value of  approximately
      $80 million at December 31, 1999) plus additional shares of the Investor's
      common  stock with an  aggregate  fair value of $75 million  (based on ten
      days average  closing price for the  Investor's  stock ending two business
      days  prior to the date of  acquisition),  plus  shares of the  Investor's
      common stock to be issued upon exercise of options as follows: all options
      to purchase  shares of the Company's  common stock  outstanding  as of the
      date of acquisition shall remain outstanding and be converted into options
      to purchase  shares of the  Investor's  common  stock,  with the number of
      shares subject to and exercise prices of each such option determined based
      on the ratio of the  consideration  payable by the Investor for each share
      of the Company's common stock. In addition,  immediately prior to the date
      of  acquisition,  the Company  shall be  entitled to issue  options to its
      officers and employees to purchase between  2,000,000 and 4,000,000 shares
      of the  Company's  common  stock,  based  on the  achievement  of  certain
      specified  design wins.  There can be no assurance  that the Investor will
      choose to exercise its call option.

7.    INCOME  TAXES

      No  federal  income  taxes  were  provided  in 1999  and  1998  due to the
      Company's  net  losses.  The  provision  for  income tax for 1999 and 1998
      represents state minimum income and franchise taxes.

      At December 31, 1999,  the Company had  available  federal and  California
      state net operating  loss  carryforwards  of  approximately  $3,800,000 to
      offset  future  taxable  income  through 2019 and 2004,  respectively.  At
      December 31, 1999 and 1998,  the net deferred tax assets of  approximately
      $1,500,000 and $7,500, respectively,  generated primarily by net operating
      loss  carryforwards  have  been  fully  reserved  due to  the  uncertainty
      surrounding the realization of such benefits.

      Current tax laws impose substantial restrictions on the utilization of net
      operating  loss and  credit  carryforwards  in the event of an  "ownership
      change," as defined by the Internal  Revenue  Code.  If there should be an
      ownership change, the Company's ability to utilize its carryforwards could
      be limited.


<PAGE>

8.    COMMITMENTS

      The Company leases its facilities  under a  noncancelable  operating lease
      that  expires  in  October  2001.  Minimum  future  lease  payments  under
      noncancelable  operating  and capital  leases as of December  31, 1999 are
      summarized as follows:

        Year Ending                                    Capital        Operating
        December 31,                                    Lease            Lease

        2000                                           $ 15,540       $ 324,000
        2001                                             12,950         305,250
                                                        -------         -------
        Total minimum lease payments                     28,490       $ 629,250
                                                                        =======
        Less amount representing interest at 10%         (2,560)
                                                        -------
                                                         25,930

        Less current portion                            (14,144)
                                                        -------
        Long-term portion                              $ 11,786
                                                        =======



      Rent expense under  operating lease for 1999, 1998 and for the period from
      July 31, 1997 (inception) through December 31, 1999 was $102,859,  $17,966
      and $120,825, respectively.

9.    SUBSEQUENT EVENT

      In February 2000, in connection with a convertible  note payable issued in
      April  1999,  the note was  converted  into  175,000  shares  of  Series B
      preferred  stock.  The Company also issued to the note holder a warrant to
      acquire  75,000 shares of the Company's  common stock at an exercise price
      of $0.25 per share. The warrant was fully vested upon issuance and expires
      in  February  2001.  The  estimated  fair  value  of the  warrant  will be
      recognized as an expense in the fiscal year 2000.

      On June 13, 2000, the Company entered into a definitive  agreement for the
      purchase of the  Company's  outstanding  common and  preferred  shares not
      already owned by PMC-Sierra, Inc. on that date for approximately 1,250,000
      shares of PMC-Sierra,  Inc. common stock, options and warrants pursuant to
      the exercise of a call option held by PMC-Sierra, Inc. (See Note 6).

                                    * * * * *


<PAGE>



MALLEABLE  TECHNOLOGIES,  INC.

(A Development Stage Company)

Financial Statements as of March 31, 2000 and
December 31, 1999 and for the Three-Month Periods
Ended March 31, 2000 and 1999


<PAGE>


MALLEABLE  TECHNOLOGIES,  INC.
(A Development Stage Company)

Index to Financial Statements

                                                                      Page

Condensed Balance Sheets.........................................      1
Condensed Statements of Operations...............................      2
Condensed Statements of Cash Flows...............................      3
Condensed Notes to Financial Statements..........................      4



<PAGE>

                         MALLEABLE TECHNOLOGIES, INC.
                     (Formerly Malleable Microsystems, Inc.)
                          (A Development Stage Company)

                            CONDENSED BALANCE SHEETS


                                                   March 31,        December 31,
                                                     2000               1999
                                                   --------            --------
           ASSETS                                 (Unaudited)

Current assets:
  Cash and equivalents                             $ 1,140,550      $ 3,170,682
  Accounts receivable and prepaid expenses              16,931           63,227
                                                   -----------      ------------
           Total current assets                      1,157,481        3,233,909

Property and equipment, net                          1,417,641          911,883

Other assets                                           265,983          206,671
                                                   -----------      ------------
Total assets                                       $ 2,841,105      $ 4,352,463
                                                   ===========      ============

           LIABILITIES AND STOCKHOLDERS' EQUITY

Current liabilities:
  Accounts payable and accrued liabilities         $   766,836      $   523,746
  Current portion of capital lease                      14,000           15,000
  Deferred revenue                                         -             14,144
                                                   -----------      ------------
           Total current liabilities                   780,836          552,890
                                                   -----------      ------------
Notes payable                                           25,000          325,000

Capital lease obligations                                8,720           11,786

Stockholders' equity:
  Convertible preferred stock                        7,635,179        7,312,512
  Common stock                                         647,993           45,673
  Warrants                                             101,157           19,252
  Deferred stock compensation                         (514,595)             -
  Deficit accumulated during the development stage  (5,843,185)      (3,914,650)
                                                   -----------      ------------
           Total stockholders' equity                2,026,549        3,462,787
                                                   -----------      ------------
Total liabilities and stockholders'equity          $ 2,841,105      $ 4,352,463
                                                   ===========      ============


                   See notes to condensed financial statements.



<PAGE>


                         MALLEABLE TECHNOLOGIES, INC.
                     (Formerly Malleable Microsystems, Inc.)
                          (A Development Stage Company)


                       CONDENSED STATEMENTS OF OPERATIONS

                                                        Three Months Ended
                                                           March 31,
                                                     ----------------------
                                                      2000            1999
                                                     ------          ------
                                                           (Unaudited)


Net revenue - related party                     $    15,000       $  148,682

Operating expenses:
  Cost of revenue                                     1,580           65,097
  Research and development                        1,261,854          302,253
  Selling, general and administrative               595,962           85,251
                                                  ---------        ----------

           Total costs and expenses               1,857,816          387,504
                                                   --------        ----------
Loss from operations                             (1,844,396)        (283,919)

Interest expense, net                               (84,139)          (1,826)
                                                   ---------       ----------
Net loss                                        $(1,928,535)      $ (285,745)
                                                 ===========       ==========


                     See notes to condensed financial statements.



<PAGE>

                       MALLEABLE TECHNOLOGIES, INC.
                     (Formerly Malleable Microsystems, Inc.)
                          (A Development Stage Company)


                       CONDENSED STATEMENTS OF CASH FLOWS


                                                         Three Months Ended
                                                              March 31,
                                                         ------------------
                                                         2000            1999
                                                         ----            ----
                                                             (Unaudited)

Cash flows from operating activities -
         Net cash used in operating activities      $ (1,472,476)    $ (299,554)
                                                       ----------      ---------
Cash flows from investing activities -
  Purchases of property and equipment                   (566,666)       (90,177)
                                                       ----------      ---------
Cash flows from financing activities:

  Issuance of common stock                                 12,220          -
  Repayments on capital lease obligations                  (3,210)         -
                                                       ----------      ---------
         Net cash provided by financing activities          9,010          -
                                                       ----------      ---------
Net decrease in cash and equivalents                   (2,030,132)     (389,731)

Cash and equivalents, beginning of
period                                                   3,170,682      766,732
                                                       -----------    ----------
Cash and equivalents, end of period                   $  1,140,550    $ 377,001
                                                       ===========    ==========



                     See notes to condensed financial statements.




<PAGE>


MALLEABLE  TECHNOLOGIES,  INC.
NOTES  TO  CONDENSED FINANCIAL  STATEMENTS
(Unaudited)

Three Months Ended March 31, 2000

1.    Basis of Presentation

       The accompanying  unaudited condensed  financial  statements of Malleable
       Technologies,  Inc. (the "Company") have been prepared in accordance with
       generally   accepted   accounting   principles   for  interim   financial
       information  and with the  instructions  to Form 10-Q and  Article  10 of
       Regulation S-X.  Accordingly,  they do not include all of the information
       and footnotes  required by generally accepted  accounting  principles for
       complete  financial  statements.  In  the  opinion  of  management,   all
       adjustments  considered necessary for a fair presentation  (consisting of
       normal recurring accruals) have been included.  Operating results for the
       three months ended March 31, 2000 are not  necessarily  indicative of the
       results that may be expected for the year ending December 31, 2000.

2.    Subsequent Events

       On June 13, 2000,  the Company  entered into a definitive  agreement with
       PMC-Sierra, Inc. for the purchase of the Company's outstanding common and
       preferred shares not already owned by PMC-Sierra,  Inc. on that date, for
       approximately 1,250,000 shares of PMC-Sierra,  Inc. common stock, options
       and warrants.  The agreement was a result of PMC-Sierra,  Inc. exercising
       its right under a call option issued to PMC-Sierra,  Inc. in July 1999 to
       purchase the remaining common and preferred shares.

                                    * * * * *




<PAGE>
<TABLE>
<CAPTION>


                                PMC-Sierra, Inc.
             PRO FORMA CONDENSED COMBINED BALANCE SHEET - UNAUDITED
                                 March 26, 2000
                                 (in thousands)

<S>                                                            <C>               <C>                <C>             <C>
                                                           Historical       Historical        Pro Forma            Pro Forma
                                                              PMC            Malleable        Adjustments            Combined

ASSETS:
Current assets:
  Cash and cash equivalents                                 $ 225,072          $ 1,140         $       -            $ 226,212
  Short-term investments                                            -                -                 -                    -
  Accounts receivable, net                                     46,108                -                 -               46,108
  Inventories                                                   9,621                -                 -                9,621
  Deferred income taxes                                         9,270                -                 -                9,270
  Prepaid expenses and other current assets                     8,239               17                 -                8,256
  Short-term deposits for wafer fabrication capacity              637                -                 -                  637
                                                         -------------      ----------      ------------           ----------
Total current assets                                          298,947            1,157                 -              300,104

Property and equipment, net                                    61,246            1,418                 -               62,664
Goodwill and other intangible assets, net                      14,359               89           237,470  (a)         251,918
Investments and other assets                                   12,489              177            (4,000) (b)           8,666
Deposits for wafer fabrication capacity                        14,483                -                 -               14,483
                                                           -----------      -----------     ------------           ----------
                                                            $ 401,524          $ 2,841         $ 233,470            $ 637,835
                                                           ===========      ===========     ============           ==========

LIABILITIES AND STOCKHOLDERS' EQUITY:
Current liabilities:
  Accounts payable                                          $  22,513          $   767        $      825  (c)       $  24,105
  Accrued liabilities                                          25,642                -                 -               25,642
  Deferred income                                              42,574                -                 -               42,574
  Income taxes payable                                         13,346                -                 -               13,346
  Current portion of obligations under
   capital leases and long-term debt                            5,465               14                 -                5,479
                                                           -----------      -----------     ------------           ----------
Total current liabilities                                     109,540              781               825              111,146

Deferred income taxes                                           9,091                -                 -                9,091
Noncurrent obligations under capital leases
    and long-term debt                                          1,876               34                 -                1,910

Special shares convertible into PMC common stock                6,748                -                 -                6,748

Stockholders' equity:
  Common stock and additional paid in capital                 251,742              749           294,366  (d),(e)     546,857
  Preferred stock                                                                7,635            (7,635) (e)              -
  Deferred stock compensation                                 (17,320)            (515)          (28,518) (a),(e)     (46,353)
  Retained earnings                                            39,847           (5,843)          (25,568) (e),(f)       8,436
                                                           -----------      -----------      ------------           ----------
    Total stockholders' equity                                274,269            2,026           232,645              508,940
                                                           -----------      -----------      ------------           ----------
                                                            $ 401,524          $ 2,841         $ 233,470            $ 637,835
                                                           ===========      ===========      ============           ==========

<FN>

See notes to unaudited pro forma condensed combined financial statements.
</FN>
</TABLE>


<PAGE>

<TABLE>
<CAPTION>


                                PMC-Sierra, Inc.

        PRO FORMA CONDENSED COMBINED STATEMENTS OF OPERATIONS - UNAUDITED
                        Three Months Ended March 26, 2000
                  (in thousands, except for per share amounts)

<S>                                                               <C>               <C>            <C>             <C>

                                                                Historical     Historical       Pro Forma        Pro Forma
                                                                    PMC        Malleable        Adjustments      Combined

Net revenues                                                    $ 102,807     $       15    $        -         $ 102,822

Cost of revenues                                                   20,551              2             -            20,553
                                                               -----------     ---------     ---------        ----------
Gross profit                                                       82,256             13             -            82,269

Other costs and expenses:
  Research and development                                         26,795          1,262             -            28,057
  Marketing, general and administrative                            15,131            596             -            15,727
  Amortization of deferred stock compensation:
    Research and development                                        3,385              -             -             3,385
    Marketing, general and administrative                             259              -             -               259
  Amortization of goodwill                                            459              -        11,874 (a)        12,333
  Costs of merger                                                   7,902              -             -             7,902
                                                               -----------     ----------    ----------       ----------
Income (loss) from operations                                      28,325         (1,845)      (11,874)           14,607
Interest income (expense), net                                      3,620            (84)            -             3,536
Gain on sale of investments                                         4,117              -             -             4,117
                                                               -----------     ----------   -----------       ----------
Income (loss) before provision for income taxes                    36,062         (1,929)      (11,874)           22,260

Provision for income taxes                                         15,916              -             -            15,916
                                                               -----------     ----------   -----------       ----------
Net income (loss)                                               $  20,146     $   (1,929)   $  (11,874)        $   6,344
                                                               ===========    ==========    ===========     ===========

Basic net income per share:                                     $    0.14                                      $   0.04

Diluted net income per share:                                   $    0.12                                      $   0.04

Shares used to calculate:
  Basic net income per share                                      148,362                                       150,055
  Diluted net income per share                                    168,222                                       169,915

<FN>

See notes to unaudited pro forma condensed combined financial statements.
</FN>
</TABLE>


<PAGE>
<TABLE>
<CAPTION>

                                PMC-Sierra, Inc.

        PRO FORMA CONDENSED COMBINED STATEMENTS OF OPERATIONS - UNAUDITED
                          Year Ended December 31, 1999

                  (in thousands, except for per share amounts)

<S>                                                                 <C>            <C>            <C>                   <C>

                                                            Historical     Historical       Pro Forma          Pro Forma
                                                               PMC        Malleable        Adjustments          Combined

Net revenues                                              $ 263,281      $    176          $       -           $ 263,457

Cost of revenues                                             55,147            52                  -              55,199
                                                          ----------    -----------      -----------         -----------
Gross profit                                                208,134           124                  -             208,258

Other costs and expenses:
  Research and development                                   69,820         2,885                  -              72,705
  Marketing, general and administrative                      43,600         1,053                  -              44,653
  Amortization of deferred stock compensation:
    Research and development                                  2,810             -                  -               2,810
    Marketing, general and administrative                       778             -                  -                 778
  Amortization of goodwill                                    1,912             -             47,494 (a)         49,406
  Costs of merger                                               866             -                  -                 866
                                                          ----------    -----------     -------------         ----------
Income (loss) from operations                                88,348        (3,814)           (47,494)             37,040
Interest income (expense), net                                7,791           (52)                 -               7,739
Gain on sale of investments                                  26,800             -                  -              26,800
                                                          ----------    -----------     ------------          ----------
Income (loss) before provision for income taxes             122,939        (3,866)           (47,494)             71,579

Provision for income taxes                                   41,337             1                  -              41,338
                                                          ---------     ----------     -------------          ----------
Net income (loss)                                         $  81,602      $ (3,867)        $  (47,494)          $  30,241
                                                          ==========   ===========      =============        ===========

Basic net income per share:                               $    0.57                                            $    0.21

Diluted net income per share:                             $    0.52                                            $    0.19

Shares used to calculate:
  Basic net income per share                                142,759                                              144,452
  Diluted net income per share                              156,465                                              158,158


<FN>

See notes to unaudited pro forma condensed combined financial statements.
</FN>
</TABLE>



<PAGE>


      NOTES TO UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS

NOTE 1:  Basis of Presentation

The following  unaudited pro forma condensed combined financial  statements give
effect to the merger  between  PMC-Sierra,  Inc.  ("the  Company"  or "PMC") and
Malleable Technologies, Inc ("Malleable"). On June 13, 2000, the Company entered
into a definitive  agreement for the purchase of Malleable's  outstanding common
and preferred  shares not already owned by PMC. The purchase price  consisted of
approximately  1,693,000  shares  of PMC  common  stock,  options  and  warrants
pursuant  to the  exercise  of a call  option  held by  PMC.  The  purchase  was
completed on June 27, 2000. Malleable is a fabless semiconductor company located
in San Jose, CA. Malleable makes digital signal processors for voice-over-packet
processing  applications  which  bridge  voice and high speed data  networks  by
compressing voice traffic into ATM or IP packets.

The pro forma condensed  combined balance sheet assumes the merger took place on
March 26,  2000 and  combines  the March 26, 2000  balance  sheet of PMC and the
March 31, 2000 balance  sheet of  Malleable.  The pro forma  condensed  combined
statement of operations  for the fiscal year ended December 31, 1999 assumes the
merger  took place as of the  beginning  of the  fiscal  year and  combines  the
historical  results of PMC and Malleable for the fiscal year ended  December 31,
1999 with pro forma adjustments.  The pro forma combined statement of operations
for the three  months  ended March 26, 2000  assumes the merger took place as of
the  beginning  of the most  recently  completed  fiscal year and  combines  the
historical  results  of PMC for the  three  months  ended  March  26,  2000  and
Malleable for the three months ended March 31, 2000.

The  Unaudited  Pro  Forma  Condensed   Combined   Balance  Sheet  reflects  the
appropriate  pro forma  adjustments to record the acquisition of Malleable using
the purchase method of accounting as described in Note 2. Acquisition  costs and
the preliminary  determination  of the unallocated  excess of acquisition  costs
over net assets acquired are set forth below:

Assumed value of shares of PMC common stock issued
   and value of PMC warrants and PMC options exchanged             $ 299,115

Estimated transaction costs                                              825
                                                              ------------------
Estimated total acquisition costs                                    299,940

Less:  net tangible assets acquired                                    1,937
                                                              ------------------
Unallocated excess of acquisition costs over net assets              298,003
   acquired

Preliminary allocation to:

   In process research and development                               31, 500
   Unearned compensation                                              29,033
                                                              ------------------
Preliminary allocation to goodwill and other intangibles           $ 237,470
                                                              ==================

<PAGE>

The fair value of shares of PMC common stock was determined by taking an average
of the  opening and closing  price of PMC common  stock for a short  period just
before and just  after the terms of the  transaction  were  agreed to by PMC and
Malleable and announced to the public.  The purchase  price was increased by the
estimated fair value of the PMC options and warrants exchanged for the Malleable
options and warrants outstanding.

The Unaudited Pro Forma Condensed Combined Consolidated Statements of Operations
reflect additional  amortization expense resulting from the increase in goodwill
and other intangible assets due to these acquisitions. The charge for in process
research and development and the allocation to unearned  compensation  have been
reflected in the Unaudited  Pro Forma  Condensed  Combined  Balance  Sheet.  The
charges for in process  research and  development  and  amortization of unearned
compensation  have  not been  included  in the  Unaudited  Pro  Forma  Condensed
Combined  Statements  of  Operations  as these  statements do not give effect to
nonrecurring merger costs related to the transaction.  The unallocated excess of
acquisition costs over net assets acquired has been  preliminarily  allocated to
goodwill,  which will be amortized over five years. In accordance with generally
accepted accounting principles, the acquired in process research and development
will be charged to expense by PMC in its third quarter ended September 24, 2000.

In  connection   with   finalizing  the  purchase  price   allocation  of  these
transactions,  PMC is currently  evaluating the fair value of the  consideration
given and the fair value of the assets acquired and liabilities  assumed.  Using
this  information,  PMC will  make a final  allocation  of the  purchase  price,
including  the  allocation  to in process  research  and  development,  unearned
compensation  and  goodwill  and other  intangibles.  Accordingly,  the purchase
accounting information is preliminary.

The pro forma combined financial  statements  included herein have been prepared
by PMC,  without audit,  pursuant to the rules and regulations of the Securities
and Exchange  Commission.  Certain information and footnote disclosures normally
prepared in accordance with generally accepted  accounting  principles have been
condensed  or omitted  pursuant  to such  rules and  regulations.  However,  PMC
believes  that  the  disclosures  are  adequate  to  make  the  information  not
misleading.  These pro forma  combined  financial  statements  should be read in
conjunction  with the  consolidated  financial  statements and the notes thereto
included  in PMC's  annual  report on Form  10-K/A  for the  fiscal  year  ended
December 31,1999,  the restated  consolidated  financial  statements and related
notes of PMC included in PMC's  registration  statement on Form S-4/A dated July
26, 2000 and the financial statements of Malleable included in this filing.

NOTE 2:  Pro Forma Adjustments

The  pro  forma  condensed   combined   balance  sheet  reflects  the  following
adjustments:

     a)   To record the allocation of purchase price to  intangibles,  including
          goodwill,  existing product  technologies and assembled work force and
          to unearned compensation.
      b)  To eliminate the existing 15% investment in Malleable.
      c)  To record acquisition related expenses, which include costs for legal,
          accounting and other related to the transaction.
      d)  To  record  the   acquisition   of   Malleable   by  the  issuance  of
          approximately  1,693,000 shares of common stock,  options and warrants
          to purchase  the 85%  interest of  Malleable  that PMC did not already
          own.
      e)  To eliminate the preferred stock,  common stock and additional paid-in
          capital,  deferred  stock  compensation  and  accumulated  deficit  of
          Malleable.
      f)  To record the allocation of purchase price to in process  research and
          development.

<PAGE>

The pro forma condensed combined  statements of operations reflect the following
adjustment with respect to the acquisition:

      a)  To record amortization of purchased  intangibles other than in-process
          research and development over estimated useful lives of five years.

NOTE 3:  Earnings Per Share

Basic and diluted net income per share for each period is calculated by dividing
pro forma net income by the shares used to calculate net income per share in the
historical  period plus the effect of the  1,693,000  shares of the PMC's common
stock,  options and warrants which were exchanged for all issued and outstanding
shares of Malleable not already owned by PMC.

<PAGE>

EXHIBIT INDEX

Exhibit
Number          Description

23.1            Consent of Deloitte & Touche, LLP, Independent Auditors







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