As filed with the Securities and Exchange Commission on July __, 2002
                                                 Registration No. 333-__________
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

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

                        MICROCHIP TECHNOLOGY INCORPORATED
             (Exact name of Registrant as specified in its charter)

        Delaware                                       86-062904
(State of Incorporation)                 (I.R.S. Employer Identification Number)

                          2355 WEST CHANDLER BOULEVARD
                          CHANDLER, ARIZONA 85224-6199
                    (Address of Principal Executive Offices)

                   POWERSMART, INC. 1998 STOCK INCENTIVE PLAN
                            (Full title of the plan)

                                  STEVE SANGHI
                      PRESIDENT AND CHIEF EXECUTIVE OFFICER
                        MICROCHIP TECHNOLOGY INCORPORATED
                          2355 WEST CHANDLER BOULEVARD
                          CHANDLER, ARIZONA 85224-6199
                                 (480) 792-7200
          (Telephone number, including area code, of agent for service)

                         CALCULATION OF REGISTRATION FEE


================================================================================================================
                                              AMOUNT      PROPOSED MAXIMUM   PROPOSED MAXIMUM
       TITLE OF SECURITIES TO                 TO BE        OFFERING PRICE   AGGREGATE OFFERING     AMOUNT OF
            BE REGISTERED                   REGISTERED      PER SHARE (1)          PRICE        REGISTRATION FEE
================================================================================================================
                                                                                        
Common Stock, $0.001 par value, approved   31,945 shares       $ 12.82            409,535           $ 37.68
for issuance under the PowerSmart, Inc.
1998 Stock Incentive Plan (2) (3)
- ----------------------------------------------------------------------------------------------------------------

- ----------
(1)  Determined  in  accordance  with Rule  457(h)  solely  for the  purpose  of
     calculating the registration fee, based upon the price at which the options
     may be exercised.
(2)  Includes rights to purchase shares of Registrant's  Preferred Stock,  which
     rights (a) are not currently  separable from shares of Common Stock and (b)
     are not currently exercisable.
(3)  Pursuant to the Merger Agreement dated as of May 22, 2002, by and among the
     Registrant, PSI Acquisition,  Inc., PowerSmart, Inc. ("PowerSmart") and the
     agent  and  attorney-in-fact  for  the  stockholders  of  PowerSmart  named
     therein, as amended,  the Registrant assumed certain outstanding options to
     purchase  common  stock of  PowerSmart  under  the  PowerSmart  1998  Stock
     Incentive Plan (the "Assumed Options"). Assumed Options are exercisable for
     the common stock of the  Registrant,  with  appropriate  adjustments to the
     number of shares and exercise  price of each Assumed  Option to reflect the
     ratio at which the common stock of  PowerSmart  was  converted  into common
     stock of the Registrant under the Merger Agreement.

================================================================================

                        MICROCHIP TECHNOLOGY INCORPORATED
                       REGISTRATION STATEMENT ON FORM S-8

                                     PART II

                 INFORMATION REQUIRED IN REGISTRATION STATEMENT

ITEM 3. INCORPORATION OF DOCUMENTS BY REFERENCE

     There are hereby  incorporated by reference in this Registration  Statement
the following documents and information heretofore filed with the Securities and
Exchange Commission:

     1.   The Company's Annual Report on Form 10-K for the year ending March 31,
          2002, filed on June 3, 2002.

     2.   The  description of the  Registrant's  Preferred Share Purchase Rights
          contained in the Registrant's Registration Statement on Form 8-A filed
          on February 14, 1995,  including any amendment or report updating such
          description.

     3.   The  description  of the  Registrant's  Common Stock  contained in the
          Registrant's  Registration  Statement on Form 8-A filed on February 5,
          1993, including any amendment or report updating such description.

     All documents filed by the Company  pursuant to Sections  13(a),  13(c), 14
and 15(d) of the  Securities  Exchange  Act of 1934 on or after the date of this
Registration  Statement  and 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 of such documents.

ITEM 4. DESCRIPTION OF SECURITIES.

     Not applicable.

ITEM 5. INTERESTS OF NAMED EXPERTS AND COUNSEL.

     As to named experts,  Item 5 is inapplicable.  Mary K. Simmons, who is Vice
President,  General Counsel and Secretary of the Company,  owns shares of Common
Stock and holds options to purchase shares covering  significantly less than one
percent (1%) of the outstanding  shares of the outstanding  Common Stock,  $.001
par value per share, of the Company.

ITEM 6. INDEMNIFICATION OF DIRECTORS AND OFFICERS.

     Section  145 of the  Delaware  General  Corporation  Law  ("Delaware  Law")
authorizes  a court to  award or a  corporation's  board of  directors  to grant
indemnification  to directors and officers in terms sufficiently broad to permit
such  indemnification  under certain  circumstances  for liabilities  (including
reimbursement  for expenses  incurred) arising under the Securities Act of 1933,
as  amended  (the  "Securities  Act").  Article VI of the  Registrant's  By-Laws
provides for mandatory  indemnification of its directors and executive officers,
to the maximum extent  permitted by Delaware Law. Article VI of the Registrant's
By-Laws  also  provides  for  permissive  indemnification  of  the  Registrant's
employees  and agents to the extent,  and in the manner,  permitted  by Delaware
Law.  The  Registrant  has  entered  into  indemnification  agreements  with its
directors  and selected  officers,  a form of which was filed as Exhibit 10.1 to
Registration Statement No. 33-57960. The indemnification  agreements provide the
Registrant's directors and selected officers with further indemnification to the
maximum extent permitted by Delaware Law.

                                      II-1

ITEM 7. EXEMPTION FROM REGISTRATION CLAIMED.

     Not Applicable.

ITEM 8. EXHIBITS.

     EXHIBIT
     NUMBER                               DESCRIPTION
     ------                               -----------
       4.1          PowerSmart,  Inc. 1998 Stock Incentive Plan, including forms
                    of Incentive Stock Option Agreement and  Nonqualified  Stock
                    Option Agreement
       5.1          Opinion of Registrant's General Counsel
      23.1          Consent of Ernst & Young LLP, Independent Auditors
      23.2          Consent of KPMG LLP, predecessor Independent Auditors
      23.3          Consent of Counsel (contained in Exhibit 5.1)
      24.1          Power of Attorney (contained on page II-4)

ITEM 9. UNDERTAKINGS

     A.   The undersigned registrant 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 of 1933 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 a post-effective amendment
any of the securities being registered which remain unsold at the termination of
the offering.

     B.   The undersigned  registrant  hereby  undertakes  that, for purposes of
determining  any liability  under the Securities Act of 1933, each filing of the
registrant's  annual  report  pursuant to Section  13(a) or Section 15(d) of the
Securities  Exchange  Act of 1934  (and,  where  applicable,  each  filing of an
employee  benefit  plan's  annual  report  pursuant  to  Section  15(d)  of  the
Securities  Exchange  Act of 1934)  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 of 1933 may be permitted to directors,  officers and  controlling
persons of the registrant  pursuant to the foregoing  provisions,  or otherwise,
the  registrant  has been  advised  that in the  opinion of the  Securities  and
Exchange  Commission such  indemnification is against public policy as expressed
in the Securities  Act of 1933 and is,  therefore,  unenforceable.  In the event
that a claim  for  indemnification  against  such  liabilities  (other  than the
payment by the registrant of expenses incurred or paid by a director, officer or
controlling  person of the registrant 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,  the registrant 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 of 1933 and will be governed by the final  adjudication  of such
issue.

                                      II-2

                                   SIGNATURES

     Pursuant to the  requirements of the Securities Act of 1933, the Registrant
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 Chandler, State of Arizona, on July 19, 2002.


                                      MICROCHIP TECHNOLOGY INCORPORATED


                                      By: /s/ Steve Sanghi
                                          --------------------------------------
                                          Steve Sanghi, Chairman of the Board,
                                          President, and Chief Executive Officer


                                POWER OF ATTORNEY

     KNOW ALL  PERSONS  BY THESE  PRESENTS,  that each  person  whose  signature
appears below constitutes and appoints Steve Sanghi and Mary K. Simmons, jointly
and  severally,   his  or  her   attorneys-in-fact,   each  with  the  power  of
substitution,  for him or her in any and all capacities,  to sign any amendments
to this  Registration  Statement on Form S-8 and to file the same, with exhibits
thereto and other  documents in connection  therewith,  with the  Securities and
Exchange  Commission,  hereby  ratifying  and  confirming  all that each of said
attorneys-in-fact,  or his  substitution or  substitutes,  may do or cause to be
done by virtue hereof.

     Pursuant  to  the   requirements  of  the  Securities  Act  of  1933,  this
Registration  Statement  has been  signed  on the dates  indicated  below by the
following persons in the capacities indicated.



          SIGNATURE                                TITLE                            DATE
          ---------                                -----                            ----
                                                                          
/s/ Steve Sanghi                Chairman of the Board, President, and Chief     July 19, 2002
- ---------------------------     Executive Officer
Steve Sanghi                    (Principal Executive Officer)

/s/ Gordon W. Parnell           Vice President, Chief Financial Officer         July 19, 2002
- ---------------------------     (Principal Accounting and Financial Officer)
Gordon W. Parnell

/s/ Albert J. Hugo-Martinez     Director                                        July 19, 2002
- ---------------------------
Albert J. Hugo-Martinez

/s/ L. B. Day                   Director                                        July 19, 2002
- ---------------------------
L. B. Day

/s/ Matthew W. Chapman          Director                                        July 19, 2002
- ---------------------------
Matthew W. Chapman

/s/ Wade F. Meyercord           Director                                        July 19, 2002
- ---------------------------
Wade F. Meyercord


                                      II-3

                                INDEX TO EXHIBITS


EXHIBIT
NUMBER                              DESCRIPTION
- ------                              -----------
  4.1     PowerSmart,  Inc.  1998  Stock  Incentive  Plan,  including  forms  of
          Incentive  Stock  Option  Agreement  and  Nonqualified   Stock  Option
          Agreement
  5.1     Opinion of Registrant's General Counsel
 23.1     Consent of Ernst & Young LLP, Independent Auditors
 23.2     Consent of KPMG LLP, predecessor Independent Auditors
 23.3     Consent of Counsel (contained in Exhibit 5.1)
 24.1     Power of Attorney (contained on page II-4)

                                      II-4