RESTATED

                          CERTIFICATE OF INCORPORATION

                                       OF

                                PMC-SIERRA, INC.


         The undersigned, John W. Sullivan, certifies that:

         1.       He is the duly elected and acting Chief Financial  Officer and
Assistant Secretary of PMC-Sierra,  Inc., a Delaware  corporation,  the original
Certificate of  Incorporation  of which was filed with the Secretary of State of
Delaware on May 2, 1997.

         2.       The  Certificate  of  Incorporation  of  PMC-Sierra,  Inc.  is
restated in full to read as follows:


                                   ARTICLE I

         The name of this corporation is PMC-Sierra, Inc. (the "Corporation").


                                   ARTICLE II

         The  address  of the  Corporation's  registered  office in the State of
Delaware  is 1209  Orange  Street,  City of  Wilmington,  County of New  Castle,
Delaware  19801.  The  name  of its  registered  agent  at such  address  is The
Corporation Trust Company.


                                  ARTICLE III

         The  purpose  of this  corporation  is to engage in any  lawful  act or
activity for which a corporation may be organized under the General  Corporation
Law of Delaware.


                                   ARTICLE IV

         This  corporation  is  authorized  to issue two  classes of stock to be
designated,  respectively, "Common Stock" and "Preferred Stock." The Corporation
is authorized to issue a total of 905,000,000  shares.  900,000,000 shares shall
be Common  Stock,  par value  $0.001,  and  5,000,000  shares shall be Preferred
Stock, par value $0.001.

         The  Preferred  Stock  may be  issued  from time to time in one or more
series.  The Board of Directors is  authorized to determine or alter the rights,
preferences,  privileges and restrictions  granted to or imposed upon any wholly
unissued  series  of  Preferred  Stock;  and to fix the  number of shares of any
series of Preferred  Stock;  and to increase,  or to decrease (within the limits
and  restrictions  stated  in any  resolution  or  resolutions  of the  Board of
Directors  originally  fixing  the number of shares  constituting  any series of
Preferred  Stock,  but not below the  number of shares of any such  series  then
outstanding) the number of shares of any such series  subsequent to the issue of
shares of that  series.  In case the number of shares of any series of Preferred
Stock shall be so decreased,  the shares  constituting the decrease shall resume
the status  which they had prior to the  adoption of the  resolution  originally
fixing the number of shares of such series.

         The authority of the Board of Directors with respect to each such class
or series shall  include,  without  limitation  of the  foregoing,  the right to
determine and fix:

              (a) the  distinctive  designation  of such class or series and the
number of shares to constitute such class or series;

              (b) the rate at which  dividends  on the  shares of such  class or
series shall be declared and paid, or set aside for payment,  whether  dividends
at the rate so  determined  shall be  cumulative  or  accruing,  and whether the
shares of such class or series shall be entitled to any  participating  or other
dividends in addition to dividends at the rate so determined, and if so, on what
terms;

              (c) the right or obligation,  if any, of the Corporation to redeem
shares of the particular  class or series of Preferred Stock and, if redeemable,
the price, terms and manner of such redemption;

              (d) the special and relative rights and  preferences,  if any, and
the  amount or amounts  per  share,  which the shares of such class or series of
Preferred  Stock shall be entitled to receive upon any voluntary or  involuntary
liquidation, dissolution or winding up of the Corporation;

              (e) the terms and  conditions,  if any,  upon which shares of such
class or series  shall be  convertible  into,  or  exchangeable  for,  shares of
capital stock of any other class or series, including the price or prices or the
rate or rates of conversion or exchange and the terms of adjustment, if any;

              (f) the obligation,  if any, of the Corporation to retire,  redeem
or purchase shares of such class or series pursuant to a sinking fund or fund of
a similar nature or otherwise, and the terms and conditions of such obligation;

              (g) voting rights, if any, on the issuance of additional shares of
such  class or series or any  shares of any other  class or series of  Preferred
Stock;

              (h) limitations,  if any, on the issuance of additional  shares of
such  class or series or any  shares of any other  class or series of  Preferred
Stock; and

              (i) such other  preferences,  powers,  qualifications,  special or
relative  rights  and  privileges  thereof  as the  Board  of  Directors  of the
Corporation,  acting in accordance with this Certificate of  Incorporation,  may
deem  advisable  and are not  inconsistent  with law and the  provisions of this
Restated Certificate of Incorporation.


                                    ARTICLE V

         The Corporation  reserves the right to amend, alter,  change, or repeal
any provision contained in this Certificate of Incorporation,  in the manner now
or  hereafter   prescribed  by  statute,  and  all  rights  conferred  upon  the
stockholders herein are granted subject to this right.


                                   ARTICLE VI

         The Corporation is to have perpetual existence.


                                  ARTICLE VII

         1.  Limitation of  Liability.  To the fullest  extent  permitted by the
General  Corporation  Law of the State of  Delaware as the same exists or as may
hereafter  be amended,  a director of the  Corporation  shall not be  personally
liable to the Corporation or its stockholders for monetary damages for breach of
fiduciary duty as a director.

         2. Indemnification. The Corporation may indemnify to the fullest extent
permitted by law any person made or  threatened  to be made a party to an action
or proceeding,  whether criminal,  civil,  administrative  or investigative,  by
reason of the fact that such person or his or her  testator or  intestate  is or
was a director,  officer or employee of the  Corporation,  or any predecessor of
the  Corporation,  or serves or served at any other  enterprise  as a  director,
officer or employee at the request of the  Corporation or any predecessor to the
Corporation.

         3.  Amendments.  Neither any  amendment nor repeal of this Article VII,
nor  the  adoption  of  any  provision  of  the  Corporation's   Certificate  of
Incorporation  inconsistent with this Article VII, shall eliminate or reduce the
effect of this Article VII, in respect of any matter occurring, or any action or
proceeding  accruing or arising or that,  but for this Article VII, would accrue
or arise,  prior to such  amendment,  repeal,  or  adoption  of an  inconsistent
provision.


                                  ARTICLE VIII

         In the event  any  shares  of  Preferred  Stock  shall be  redeemed  or
converted  pursuant to the terms  hereof,  the shares so  converted  or redeemed
shall not revert to the status of authorized  but unissued  shares,  but instead
shall be canceled and shall not be re-issuable by the Corporation.


                                   ARTICLE IX

         Holders  of stock of any class or series of this  Corporation  shall be
entitled to  cumulate  their votes for the  election  of  directors  pursuant to
Section 214 of the Delaware General Corporation Law.


                                   ARTICLE X

         1. Number of Directors.  The number of directors which  constitutes the
whole Board of Directors of the Corporation shall be designated in the Bylaws of
the Corporation.

         2. Election of Directors. Elections of directors need not be by written
ballot unless  demanded by any  stockholder at the meeting and before the voting
has begun or the Bylaws of the Corporation shall so provide.


                                   ARTICLE XI

         In  furtherance  and  not in  limitation  of the  powers  conferred  by
statute, the Board of Directors is expressly authorized to make, alter, amend or
repeal the Bylaws of the Corporation.


                                   ARTICLE XII

         The  stockholders of the Corporation  shall not act by written consent,
except solely to call a special  meeting of the  stockholders in accordance with
the following  procedures:

              (a) Upon  request by written  consent of holders of a majority  of
the outstanding  shares,  containing the information  described  below,  sent by
registered  mail to the  president  or chief  executive  officer,  the  board of
directors  shall  determine a place and time for such  meeting and a record date
for the  determination  of stockholders  entitled to vote at such meeting.  Such
time shall not be more than 75 days after  determination of the validity of such
request. The board of directors shall have no more than 10 days after receipt of
such   request  to  determine   its   validity.   Following   such  receipt  and
determinations,  the secretary shall give notice to the stockholders entitled to
vote at such  meeting  that a  meeting  will be held at the  place  and  time so
determined.

              (b) The  request by written  consent  shall  state each action the
requesting  stockholders propose to take at such meeting. The board of directors
may include other proposals to be considered at such meeting.

              (c) The requesting  stockholders  shall provide to the Corporation
information  regarding  any  material  interest  in  the  proposal  held  by the
requesting  stockholders and any other  information that would be required to be
disclosed in filings with the Securities  and Exchange  Commission in connection
with the solicitation of proxies.


                                  ARTICLE XIII

         Meetings  of  stockholders  may be held  within or without the State of
Delaware,  as the Bylaws may provide.  The books of the  Corporation may be kept
(subject to any  provision  contained in the  statutes)  outside of the State of
Delaware at such place or places as may be  designated  from time to time by the
Board of Directors or in the Bylaws of the Corporation.


                                      * * *

         3. The Board of Directors  duly adopted a resolution  setting forth the
aforementioned Restated Certificate of Incorporation of the Corporation pursuant
to Section 245 of the General Corporation Law of the State of Delaware.

         4. The  aforementioned  Restated  Certificate of  Incorporation  of the
Corporation  only  restates  and  integrates  and does  not  further  amend  the
provisions  of the  Corporation's  Certificate  of  Incorporation  as heretofore
amended and supplemented,  and there is no discrepancy  between those provisions
and the provisions of this Restated Certificate of Incorporation.

         The  undersigned  further  declares  under penalty of perjury under the
laws of the State of Delaware that the matters set forth in this certificate are
true and correct of his own knowledge.



Dated:  May 11, 2001             /s/ John W. Sullivan
                                 -----------------------------------------------
                                 John W. Sullivan
                                 Chief Financial Officer and Assistant Secretary