As filed with the Securities and Exchange Commission on September 13, 1999
                                                    Registration No. 333-_______
================================================================================
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM S-8
                             REGISTRATION STATEMENT
                                      Under
                           THE SECURITIES ACT OF 1933
                             ----------------------

                                PMC-SIERRA, INC.
             (Exact name of registrant as specified in its charter)
                             ----------------------


        Delaware                                         94-2925073
------------------------                    ------------------------------------
(State of Incorporation)                    (I.R.S. Employer Identification No.)

                              105-8555 Baxter Place
                        Burnaby, British Columbia V5A 4V7
                                     Canada
                    (Address of principal executive offices)
                             ----------------------


                       Abrizio Inc. 1997 Stock Option Plan
                            (Full title of the plan)
                             ----------------------


                          The Corporation Trust Company
                               1209 Orange Street
                           Wilmington, Delaware 19801
                                 (800) 677-3394
            (Name, address and telephone number of agent for service)
                             ----------------------


                                    Copy to:
                                   Neil Wolff
                     Wilson Sonsini Goodrich & Rosati, P.C.
                               650 Page Mill Road
                        Palo Alto, California 94304-1050
                             ----------------------

<TABLE>
<CAPTION>

                         CALCULATION OF REGISTRATION FEE
=============================================================================================
                                         Proposed            Proposed
     Title of                             Maximum            Maximum              Amount
    Securities           Amount          Offering           Aggregate               of
       to be              to be          Price Per           Offering          Registration
  Registered (1)       Registered          Share              Price                 Fee
---------------------------------------------------------------------------------------------
<S>                    <C>              <C>             <C>                      <C>
   Common Stock,
  $0.001 par value     132,684 (2)      $0.03156 (2)      $4,187.51 (2)            $1.14
---------------------------------------------------------------------------------------------
   Common Stock,
  $0.001 par value     622,136 (2)      $0.3322 (2)      $206,673.58 (2)          $57.46
---------------------------------------------------------------------------------------------
   Common Stock,
  $0.001 par value     194,001 (3)      $100.66 (3)     $19,528,140.67 (3)       $5,428.83
=============================================================================================
<FN>
(1)   Pursuant to the Agreement and Plan of Reorganization dated as of August 24, 1999, among
      PMC-Sierra,  Inc.,  Pyrenees  Acquisition  Corporation  and Abrizio Inc.,  PMC assumed,
      effective  as of August 27, 1999,  all of the  outstanding  options to purchase  common
      stock of Abrizio  under the Abrizio  1997 Stock Option  Plan,  and such options  became
      exercisable to purchase shares of PMC's common stock,  with appropriate  adjustments to
      the number of shares and exercise price of each assumed option.
(2)   Options granted pursuant to an employee stock option plan.  Estimated  pursuant to Rule
      457(h)(1)  under the  Securities  Act of 1933,  as  amended,  solely for the purpose of
      calculating the registration fee. Based on the price per share at which the options may
      be exercised.
(3)   Shares  reserved  for future  issuance.  Estimated  pursuant to Rule  457(c)  under the
      Securities  Act of  1933,  as  amended,  solely  for the  purpose  of  calculating  the
      registration  fee.  Based on the average of the high and low prices of the common stock
      on   September   7,   1999,    as   reported   on   the   Nasdaq    National    Market.
=============================================================================================
</FN>
</TABLE>


<PAGE>

                                     PART II
               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT


Item 3.    Incorporation of Documents by Reference.
-------    ----------------------------------------

           The following documents and information are incorporated by reference
as filed with the Securities and Exchange Commission:

           (a)    PMC-Sierra, Inc.'s  ("PMC's")  Form 10-K Annual Report for the
fiscal year ended December 27, 1998 (File No. 0-19084).

           (b)    PMC's Form 10-Q Quarterly  Reports for the quarters ended June
27, 1999, and March 28, 1999 (File No. 0-19804).

           (c)    PMC's Form 8-K dated August 27, 1999,  and August 24, 1999 (as
amended August 25, 1999) (File No. 0-19804).

           (d)    PMC's  Registration  Statements on Form S-8,  dated October 3,
1996 (File No.  333-13357),  August 29, 1997 (File No.  333-34671),  and June 4,
1998 (File No. 333-55983).

           All documents  subsequently  filed by PMC pursuant to Sections 13(a),
13(c), 14 and 15(d) of the Securities Exchange Act of 1934, as amended, prior to
the filing of a  post-effective  amendment  which  indicates that all securities
offered  have been  sold or which  deregisters  all  securities  then  remaining
unsold,  shall be deemed to be  incorporated  by reference in this  registration
statement and to be part hereof from the date of filing such documents.

Item 4.    Description of Securities.
-------    --------------------------

           Not applicable.

Item 5.    Interests of Named Experts and Counsel.
-------    ---------------------------------------

           Certain  legal matters with respect to the shares will be passed upon
by Wilson, Sonsini,  Goodrich & Rosati, a Professional  Corporation,  Palo Alto,
California.

Item 6.    Indemnification of Directors and Officers.
-------    ------------------------------------------

           Section  145  of  the  Delaware  General  Corporation  Law  generally
provides that a  corporation  is empowered to indemnify any person who is made a
party to any  threatened,  pending or completed  action,  suit or  proceeding by
reason of the fact that he is or was a director,  officer,  employee or agent of
the corporation or is or was serving, at the request of the corporation,  in any
of such capacities of another corporation or other enterprise, if such director,
officer,  employee  or agent  acted in good faith and in a manner he  reasonably
believed to be in or not opposed to the best interests of the corporation,  and,
with respect to any criminal  action or proceeding,  had no reasonable  cause to
believe his conduct was unlawful.  This statute describes in detail the right of
PMC to indemnify any such person.

           PMC's   Certificate   of   Incorporation    eliminates   in   certain
circumstances  the liability of directors of PMC for monetary damages for breach
of their  fiduciary  duty as directors.  This  provision  does not eliminate the
liability of a director (i) for breach of the director's  duty of loyalty to PMC
or its  stockholders,  (ii) for acts or  omissions  by the  director not in good
faith or which involve  intentional  misconduct  or a knowing  violation of law,
(iii) for  willful or  negligent  declaration  of an  unlawful  dividend,  stock
purchase or redemption or (iv) for transactions  from which the director derived
an improper personal benefit.
<PAGE>

           PMC's  Certificate  of  Incorporation  also  provides  generally  for
indemnification  of all  directors  and  officers of PMC to the  fullest  extent
permitted by the General Corporation Law of the State of Delaware. Such right to
indemnification  shall be deemed to be a contract  right and includes  generally
the right to be paid by PMC the expenses  incurred in defending  any  proceeding
covered by this provision in advance of its final  disposition.  Individuals who
are entitled to  indemnification  may bring suit to seek recovery of amounts due
under the  foregoing  provisions  and to recover  the  expenses  of such suit if
successful.

           PMC has entered into  indemnification  agreements to such effect with
its officers and  directors  containing  provisions  which are in some  respects
broader than the specific  indemnification  provisions  contained in the General
Corporation  Law of Delaware.  The  indemnification  agreements may require PMC,
among other things,  to indemnify  such officers and directors  against  certain
liabilities  that may arise by reason of their status or service as directors or
officers (other than liabilities  arising from willful  misconduct of a culpable
nature) and to advance  their  expenses  incurred as a result of any  proceeding
against them as to which they could be indemnified.

           PMC believes that it is the position of the  Commission  that insofar
as the  foregoing  provisions  may be invoked to disclaim  liability for damages
arising under the Securities  Act, such  provisions are against public policy as
expressed in the Security Act and are therefore unenforceable.

           PMC  currently  maintains  an  officers'  and  directors'   liability
insurance policy which covers,  subject to the exclusions and limitations of the
policy,  officers and directors of PMC against certain  liabilities which may be
incurred by them solely in such capacities.

Item 7.    Exemption from Registration Claimed.
-------    ------------------------------------

           Not applicable.

Item 8.    Exhibits.
-------    ---------

           Exhibit
           Number
           -------
              4.1      Abrizio Inc. 1997 Stock Option  Plan and  form of  Option
                       Agreement thereunder

              5.1      Opinion of Wilson Sonsini Goodrich & Rosati, Professional
                       Corporation

             23.1      Consent of Deloitte & Touche LLP, Independent Auditors

             23.2      Consent of Ernst & Young LLP, Independent Auditors

             23.3      Consent of Counsel (Contained in Exhibit 5.1 above)

             24.1      Power of Attorney (see page II-4)

Item 9.    Undertakings.
-------    -------------

           (a)  PMC hereby undertakes:

                  (1)      To file,  during any period in which  offers or sales
                           are being made,  a  post-effective  amendment to this
                           registration   statement   to  include  any  material
                           information  with respect to the plan of distribution
                           not   previously   disclosed   in  the   registration
                           statement or any material change to such  information
                           in the registration statement.
<PAGE>

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

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

         (b)  PMC hereby  undertakes  that,  for  purposes  of  determining  any
liability  under the Securities Act, each filing of PMC's annual report pursuant
to Section  13(a) or Section 15(d) of the Exchange Act (and,  where  applicable,
each filing of an employee  benefit  plan's  annual  report  pursuant to Section
15(d) of the Exchange Act) that is incorporated by reference in the registration
statement  shall be deemed to be a new  registration  statement  relating to the
securities  offered  therein,  and the offering of such  securities at that time
shall be deemed to be the initial bona fide offering thereof.

         (c)  Insofar  as  indemnification  for  liabilities  arising  under the
Securities Act may be permitted to directors,  officers and controlling  persons
of PMC pursuant to the Delaware  General  Corporation  Law, the  Certificate  of
Incorporation  or the Bylaws of PMC,  Indemnification  Agreements  entered  into
between PMC and its officers and directors,  or otherwise,  PMC has been advised
that in the opinion of the  Commission  such  indemnification  is against public
policy as expressed in the Securities Act and is, therefore,  unenforceable.  In
the event that a claim for indemnification  against such liabilities (other than
the payment by PMC in the successful defense of any action,  suit or proceeding)
is asserted by such director,  officer or controlling  person in connection with
the securities being registered  hereunder,  PMC will,  unless in the opinion of
its counsel the matter has been settled by  controlling  precedent,  submit to a
court of appropriate  jurisdiction the question whether such  indemnification by
it is against  public  policy as  expressed  in the  Securities  Act and will be
governed by the final adjudication of such issue.


<PAGE>


                                   SIGNATURES

         Pursuant to the  requirements of the Securities Act, PMC certifies that
it has reasonable  grounds to believe that it meets all of the  requirements for
filing on Form S-8 and has duly caused this Registration  Statement to be signed
on its behalf by the  undersigned,  thereunto  duly  authorized,  in the City of
Burnaby, British Columbia, Canada, on this 13th day of September, 1999.

                                       PMC-SIERRA, INC.

                                       By: /s/ROBERT L. BAILEY
                                           -------------------------------------
                                           Robert L. Bailey, President and Chief
                                           Executive Officer


                                POWER OF ATTORNEY

         KNOW ALL  PERSONS  BY THESE  PRESENTS,  that  each  such  person  whose
signature appears below constitutes and appoints, jointly and severally,  Robert
L. Bailey and John W.  Sullivan  his  attorneys-in-fact,  each with the power of
substitution,  for him in any and all capacities, to sign any amendments to this
Registration Statement on Form S-8 (including post-effective amendments), and to
file the same,  with all exhibits  thereto,  and other  documents in  connection
therewith, with the Commission, hereby ratifying and confirming all that each of
said attorneys-in-fact,  or his substitute or substitutes, may do or cause to be
done by virtue hereof.

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

<TABLE>
<CAPTION>
        Signature                               Title                                           Date
        ---------                               -----                                           ----


<S>                                 <C>                                                   <C>
/s/ Robert L. Bailey                President, Chief Executive Officer and                September 13, 1999
--------------------------          Director (Principal Executive Officer)
Robert L. Bailey

/s/ John W. Sullivan                Vice President of Finance and Chief                   September 13, 1999
--------------------------          Financial Officer (Principal Financial and
John W. Sullivan                    Accounting Officer)

/s/ James V. Diller                 Chairman of the Board of Directors                    September 9, 1999
--------------------------
James V. Diller

/s/ Alexandre Balkanski             Director                                              September 9, 1999
--------------------------
Alexandre Balkanski

/s/ Frank J. Marshall               Director                                              September 9, 1999
--------------------------
Frank J. Marshall

/s/ L. Colin Beaumont               Director                                              September 10, 1999
--------------------------
L. Colin Beaumont


</TABLE>
[{"type": "S-8", "sequence": "1", "description": "PMC-SIERRA, INC. FORM S-8", "secsgml_size_bytes": 17305}]
{"company-data": {"conformed-name": "PMC SIERRA INC", "cik": "0000767920", "assigned-sic": "3674", "irs-number": "942925073", "state-of-incorporation": "DE", "fiscal-year-end": "1227"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-87039", "film-number": "99710787"}, "business-address": {"street1": "8555 BAXTER PLACE SUITE 105", "street2": "BURABURY BRITISH COLUMBIA", "city": "CANADA V5A 4V7", "state": "A1", "zip": "00000", "phone": "6044156000"}, "mail-address": {"street1": "8555 BAXTER PLACE STE 105", "street2": "BURABURY BRITISH COLUMBIA", "city": "CANADA V5A 4V7", "state": "A1", "zip": "00000"}, "former-company": {"former-conformed-name": "SIERRA SEMICONDUCTOR CORP", "date-changed": "19950419"}}
As filed with the Securities and Exchange Commission on September 13, 1999
                                                    Registration No. 333-_______
================================================================================
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM S-8
                             REGISTRATION STATEMENT
                                      Under
                           THE SECURITIES ACT OF 1933
                             ----------------------

                                PMC-SIERRA, INC.
             (Exact name of registrant as specified in its charter)
                             ----------------------

        Delaware                                         94-2925073
------------------------                    ------------------------------------
(State of Incorporation)                    (I.R.S. Employer Identification No.)

                              105-8555 Baxter Place
                        Burnaby, British Columbia V5A 4V7
                                     Canada
                    (Address of principal executive offices)
                             ----------------------

                       Abrizio Inc. 1997 Stock Option Plan
                            (Full title of the plan)
                             ----------------------

                          The Corporation Trust Company
                               1209 Orange Street
                           Wilmington, Delaware 19801
                                 (800) 677-3394
            (Name, address and telephone number of agent for service)
                             ----------------------

                                    Copy to:
                                   Neil Wolff
                     Wilson Sonsini Goodrich & Rosati, P.C.
                               650 Page Mill Road
                        Palo Alto, California 94304-1050
                             ----------------------
CALCULATION OF REGISTRATION FEE
=============================================================================================
                                         Proposed            Proposed
     Title of                             Maximum            Maximum              Amount
    Securities           Amount          Offering           Aggregate               of
       to be              to be          Price Per           Offering          Registration
  Registered (1)       Registered          Share              Price                 Fee
---------------------------------------------------------------------------------------------
Common Stock,
  $0.001 par value     132,684 (2)      $0.03156 (2)      $4,187.51 (2)            $1.14
---------------------------------------------------------------------------------------------
   Common Stock,
  $0.001 par value     622,136 (2)      $0.3322 (2)      $206,673.58 (2)          $57.46
---------------------------------------------------------------------------------------------
   Common Stock,
  $0.001 par value     194,001 (3)      $100.66 (3)     $19,528,140.67 (3)       $5,428.83
=============================================================================================
(1)   Pursuant to the Agreement and Plan of Reorganization dated as of August 24, 1999, among
      PMC-Sierra,  Inc.,  Pyrenees  Acquisition  Corporation  and Abrizio Inc.,  PMC assumed,
      effective  as of August 27, 1999,  all of the  outstanding  options to purchase  common
      stock of Abrizio  under the Abrizio  1997 Stock Option  Plan,  and such options  became
      exercisable to purchase shares of PMC's common stock,  with appropriate  adjustments to
      the number of shares and exercise price of each assumed option.
(2)   Options granted pursuant to an employee stock option plan.  Estimated  pursuant to Rule
      457(h)(1)  under the  Securities  Act of 1933,  as  amended,  solely for the purpose of
      calculating the registration fee. Based on the price per share at which the options may
      be exercised.
(3)   Shares  reserved  for future  issuance.  Estimated  pursuant to Rule  457(c)  under the
      Securities  Act of  1933,  as  amended,  solely  for the  purpose  of  calculating  the
      registration  fee.  Based on the average of the high and low prices of the common stock
      on   September   7,   1999,    as   reported   on   the   Nasdaq    National    Market.
=============================================================================================
PART II
               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

Item 3.    Incorporation of Documents by Reference.
-------    ----------------------------------------

           The following documents and information are incorporated by reference
as filed with the Securities and Exchange Commission:

           (a)    PMC-Sierra, Inc.'s  ("PMC's")  Form 10-K Annual Report for the
fiscal year ended December 27, 1998 (File No. 0-19084).

           (b)    PMC's Form 10-Q Quarterly  Reports for the quarters ended June
27, 1999, and March 28, 1999 (File No. 0-19804).

           (c)    PMC's Form 8-K dated August 27, 1999,  and August 24, 1999 (as
amended August 25, 1999) (File No. 0-19804).

           (d)    PMC's  Registration  Statements on Form S-8,  dated October 3,
1996 (File No.  333-13357),  August 29, 1997 (File No.  333-34671),  and June 4,
1998 (File No. 333-55983).

           All documents  subsequently  filed by PMC pursuant to Sections 13(a),
13(c), 14 and 15(d) of the Securities Exchange Act of 1934, as amended, prior to
the filing of a  post-effective  amendment  which  indicates that all securities
offered  have been  sold or which  deregisters  all  securities  then  remaining
unsold,  shall be deemed to be  incorporated  by reference in this  registration
statement and to be part hereof from the date of filing such documents.

Item 4.    Description of Securities.
-------    --------------------------

           Not applicable.

Item 5.    Interests of Named Experts and Counsel.
-------    ---------------------------------------

           Certain  legal matters with respect to the shares will be passed upon
by Wilson, Sonsini,  Goodrich & Rosati, a Professional  Corporation,  Palo Alto,
California.

Item 6.    Indemnification of Directors and Officers.
-------    ------------------------------------------

           Section  145  of  the  Delaware  General  Corporation  Law  generally
provides that a  corporation  is empowered to indemnify any person who is made a
party to any  threatened,  pending or completed  action,  suit or  proceeding by
reason of the fact that he is or was a director,  officer,  employee or agent of
the corporation or is or was serving, at the request of the corporation,  in any
of such capacities of another corporation or other enterprise, if such director,
officer,  employee  or agent  acted in good faith and in a manner he  reasonably
believed to be in or not opposed to the best interests of the corporation,  and,
with respect to any criminal  action or proceeding,  had no reasonable  cause to
believe his conduct was unlawful.  This statute describes in detail the right of
PMC to indemnify any such person.

           PMC's   Certificate   of   Incorporation    eliminates   in   certain
circumstances  the liability of directors of PMC for monetary damages for breach
of their  fiduciary  duty as directors.  This  provision  does not eliminate the
liability of a director (i) for breach of the director's  duty of loyalty to PMC
or its  stockholders,  (ii) for acts or  omissions  by the  director not in good
faith or which involve  intentional  misconduct  or a knowing  violation of law,
(iii) for  willful or  negligent  declaration  of an  unlawful  dividend,  stock
purchase or redemption or (iv) for transactions  from which the director derived
an improper personal benefit.
PMC's  Certificate  of  Incorporation  also  provides  generally  for
indemnification  of all  directors  and  officers of PMC to the  fullest  extent
permitted by the General Corporation Law of the State of Delaware. Such right to
indemnification  shall be deemed to be a contract  right and includes  generally
the right to be paid by PMC the expenses  incurred in defending  any  proceeding
covered by this provision in advance of its final  disposition.  Individuals who
are entitled to  indemnification  may bring suit to seek recovery of amounts due
under the  foregoing  provisions  and to recover  the  expenses  of such suit if
successful.

           PMC has entered into  indemnification  agreements to such effect with
its officers and  directors  containing  provisions  which are in some  respects
broader than the specific  indemnification  provisions  contained in the General
Corporation  Law of Delaware.  The  indemnification  agreements may require PMC,
among other things,  to indemnify  such officers and directors  against  certain
liabilities  that may arise by reason of their status or service as directors or
officers (other than liabilities  arising from willful  misconduct of a culpable
nature) and to advance  their  expenses  incurred as a result of any  proceeding
against them as to which they could be indemnified.

           PMC believes that it is the position of the  Commission  that insofar
as the  foregoing  provisions  may be invoked to disclaim  liability for damages
arising under the Securities  Act, such  provisions are against public policy as
expressed in the Security Act and are therefore unenforceable.

           PMC  currently  maintains  an  officers'  and  directors'   liability
insurance policy which covers,  subject to the exclusions and limitations of the
policy,  officers and directors of PMC against certain  liabilities which may be
incurred by them solely in such capacities.

Item 7.    Exemption from Registration Claimed.
-------    ------------------------------------

           Not applicable.

Item 8.    Exhibits.
-------    ---------

           Exhibit
           Number
           -------
              4.1      Abrizio Inc. 1997 Stock Option  Plan and  form of  Option
                       Agreement thereunder

              5.1      Opinion of Wilson Sonsini Goodrich & Rosati, Professional
                       Corporation

             23.1      Consent of Deloitte & Touche LLP, Independent Auditors

             23.2      Consent of Ernst & Young LLP, Independent Auditors

             23.3      Consent of Counsel (Contained in Exhibit 5.1 above)

             24.1      Power of Attorney (see page II-4)

Item 9.    Undertakings.
-------    -------------

           (a)  PMC hereby undertakes:

                  (1)      To file,  during any period in which  offers or sales
                           are being made,  a  post-effective  amendment to this
                           registration   statement   to  include  any  material
                           information  with respect to the plan of distribution
                           not   previously   disclosed   in  the   registration
                           statement or any material change to such  information
                           in the registration statement.
(2)      That,  for the purpose of  determining  any liability
                           under the  Securities  Act, each such  post-effective
                           amendment  shall be deemed  to be a new  registration
                           statement relating to the securities offered therein,
                           and the  offering  of such  securities  at that  time
                           shall be deemed to be the initial bona fide  offering
                           thereof.

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

         (b)  PMC hereby  undertakes  that,  for  purposes  of  determining  any
liability  under the Securities Act, each filing of PMC's annual report pursuant
to Section  13(a) or Section 15(d) of the Exchange Act (and,  where  applicable,
each filing of an employee  benefit  plan's  annual  report  pursuant to Section
15(d) of the Exchange Act) that is incorporated by reference in the registration
statement  shall be deemed to be a new  registration  statement  relating to the
securities  offered  therein,  and the offering of such  securities at that time
shall be deemed to be the initial bona fide offering thereof.

         (c)  Insofar  as  indemnification  for  liabilities  arising  under the
Securities Act may be permitted to directors,  officers and controlling  persons
of PMC pursuant to the Delaware  General  Corporation  Law, the  Certificate  of
Incorporation  or the Bylaws of PMC,  Indemnification  Agreements  entered  into
between PMC and its officers and directors,  or otherwise,  PMC has been advised
that in the opinion of the  Commission  such  indemnification  is against public
policy as expressed in the Securities Act and is, therefore,  unenforceable.  In
the event that a claim for indemnification  against such liabilities (other than
the payment by PMC in the successful defense of any action,  suit or proceeding)
is asserted by such director,  officer or controlling  person in connection with
the securities being registered  hereunder,  PMC will,  unless in the opinion of
its counsel the matter has been settled by  controlling  precedent,  submit to a
court of appropriate  jurisdiction the question whether such  indemnification by
it is against  public  policy as  expressed  in the  Securities  Act and will be
governed by the final adjudication of such issue.
SIGNATURES

         Pursuant to the  requirements of the Securities Act, PMC certifies that
it has reasonable  grounds to believe that it meets all of the  requirements for
filing on Form S-8 and has duly caused this Registration  Statement to be signed
on its behalf by the  undersigned,  thereunto  duly  authorized,  in the City of
Burnaby, British Columbia, Canada, on this 13th day of September, 1999.

                                       PMC-SIERRA, INC.

                                       By: /s/ROBERT L. BAILEY
                                           -------------------------------------
                                           Robert L. Bailey, President and Chief
                                           Executive Officer

                                POWER OF ATTORNEY

         KNOW ALL  PERSONS  BY THESE  PRESENTS,  that  each  such  person  whose
signature appears below constitutes and appoints, jointly and severally,  Robert
L. Bailey and John W.  Sullivan  his  attorneys-in-fact,  each with the power of
substitution,  for him in any and all capacities, to sign any amendments to this
Registration Statement on Form S-8 (including post-effective amendments), and to
file the same,  with all exhibits  thereto,  and other  documents in  connection
therewith, with the Commission, hereby ratifying and confirming all that each of
said attorneys-in-fact,  or his substitute or substitutes, may do or cause to be
done by virtue hereof.

         Pursuant to the  requirements of the Securities Act, this  Registration
Statement has been signed by the following  persons in the capacities and on the
dates indicated.
Signature                               Title                                           Date
        ---------                               -----                                           ----
/s/ Robert L. Bailey                President, Chief Executive Officer and                September 13, 1999
--------------------------          Director (Principal Executive Officer)
Robert L. Bailey

/s/ John W. Sullivan                Vice President of Finance and Chief                   September 13, 1999
--------------------------          Financial Officer (Principal Financial and
John W. Sullivan                    Accounting Officer)

/s/ James V. Diller                 Chairman of the Board of Directors                    September 9, 1999
--------------------------
James V. Diller

/s/ Alexandre Balkanski             Director                                              September 9, 1999
--------------------------
Alexandre Balkanski

/s/ Frank J. Marshall               Director                                              September 9, 1999
--------------------------
Frank J. Marshall

/s/ L. Colin Beaumont               Director                                              September 10, 1999
--------------------------
L. Colin Beaumont