SECURITIES AND EXCHANGE COMMISSION
                           Washington, D.C. 20549-1004



                                    FORM 8-K
                    CURRENT REPORT PURSUANT TO SECTION 13 OF
                       THE SECURITIES EXCHANGE ACT OF 1934


        Date of Report (date of earliest event reported): April 27, 2001



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


      Delaware                        0-19084                  94-2925073
(State or other jurisdiction of   Commission File No.       (I.R.S. Employer
 incorporation or organization)                           Identification Number)



                            3975 Freedom Circle Santa
                                 Clara, CA 95054
                    (Address of principal executive offices)

                                 (408) 369-1176
              (Registrant's telephone number, including area code)


ITEM 5.  OTHER EVENTS

         On April 27, 2001,  PMC-Sierra,  Inc. issued a press release announcing
that the Board of  Directors  of  PMC-Sierra,  Inc.  approved  the adoption of a
Preferred Stock Rights Agreement. The press release is attached as Exhibit 99 to
this Form 8-K.

ITEM 7.  FINANCIAL STATEMENTS AND EXHIBITS

         (c)  Exhibits.

              Exhibit 99   PMC-Sierra, Inc. Press Release issued April 27, 2001.



                                    SIGNATURE

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

                                      PMC-Sierra, Inc.
                                      (Registrant)

Date:  April 30, 2001
                                      By:  /s/ John W. Sullivan
                                           --------------------
                                      John W. Sullivan
                                      Vice President and Chief Financial Officer



                                  EXHIBIT INDEX

Exhibit
Number
- -------
     99      PMC-Sierra, Inc. Press Release issued April 27, 2001.




Exhibit 99 - PMC-Sierra, Inc. Press Release issued April 27, 2001.



FOR RELEASE ON April 27th, 2001 AT 5:00 P.M. EDT

PMC-Sierra Contacts:



John W. Sullivan                      David Climie                         Susan Shaw
                                                                      
VP Finance & CFO                      Manager, Investor Relations          Manager, Public Relations

Tel: 1 408 988 7785                   Tel: 1 408 988 8276                  Tel: 1 408 988 8515

john_sullivan@pmc-sierra.com          david_climie@pmc-sierra.com          susan_shaw@pmc-sierra.com
- ----------------------------          ---------------------------          -------------------------




                   PMC-SIERRA ADOPTS STOCKHOLDERS' RIGHTS PLAN


Santa Clara,  CA - April 27th,  2001 --  PMC-Sierra,  Inc.  (NASDAQ:PMCS)  today
announced that its board of directors has adopted a  Stockholders'  Rights Plan.
Under the plan,  PMC-Sierra will issue a dividend of one right for each share of
common  stock of the company held by  stockholders  of record as of the close of
business on May 25, 2001. The plan is designed to assure stockholders fair value
in the event of a future unsolicited business combination or similar transaction
involving  the  company.  PMC-Sierra  added  that the plan  was not  adopted  in
response to any attempt to acquire the company,  and that it is not aware of any
such efforts.

Each right will initially entitle stockholders to purchase a fractional share of
the company's preferred stock for $325. However,  the rights are not immediately
exercisable  and will become  exercisable  only upon the  occurrence  of certain
events.  Upon occurrence of these events,  unless redeemed for $0.001 per right,
the rights will  become  exercisable  by  holders,  other than rights held by an
unsolicited  third  party  acquirer,  for shares of the  company or of the third
party acquirer having a value of twice the right's then-current exercise price.

Further  details  of the plan are  outlined  in a letter  that will be mailed to
stockholders as of the record date.

PMC-Sierra is a leading  provider of broadband  semiconductor  solutions for the
global information  infrastructure.  PMC-Sierra is traded on the Nasdaq National
Market under the symbol PMCS.  The company is included in the  NASDAQ-100  INDEX
(NDX) which  contains  the largest  non-financial  companies on the Nasdaq Stock
Market.  The Nasdaq-100 Index is the benchmark for the Nasdaq-100 Index Tracking
Stock (AMEX: QQQ).