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Form: SC 13G

Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions

February 9, 2001

SC 13G: Schedule filed to report acquisition of beneficial ownership of 5% or more of a class of equity securities by passive investors and certain institutions

Published on February 9, 2001


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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549




SCHEDULE 13G

UNDER THE SECURITIES EXCHANGE ACT OF 1934

(AMENDMENT NO. ________ )*


Microchip Technology Inc.
-------------------------
(Name of Issuer)

Common Stock, $.001 par value per share
---------------------------------------
(Title of Class of Securities)

595017104
---------
(CUSIP Number)

December 31, 2000
-----------------
(Date of Event Which Requires Filing of this Statement)

Check the appropriate box to designate the rule pursuant to which this Schedule
is filed:

[X] Rule 13d-1(b)
[ ] Rule 13d-1(c)
[ ] Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.



The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).



Page 1 of 4 pages


SCHEDULE 13G



CUSIP No. 595017104


- --------------------------------------------------------------------------------
1. Names of Reporting Persons.
I.R.S. Identification Nos. of above persons (entities only).
A I M Management Group Inc., on behalf of itself and its wholly-owned
subsidiaries, A I M Advisors, Inc. and A I M Capital Management, Inc.

I.D. No. 74-1881407

- --------------------------------------------------------------------------------
2. Check the Appropriate Box if a Member of a Group (See Instructions)
(a)
-----------------------------------------------------------------
(b)
-----------------------------------------------------------------

- --------------------------------------------------------------------------------
3. SEC Use Only
--------------------------------------------------------

- --------------------------------------------------------------------------------
4. Citizenship or Place of Organization Delaware

- --------------------------------------------------------------------------------
5. Sole Voting Power 9,136,406

--------------------------------------------------------
Number of Shares 6. Shared Voting Power
Beneficially Owned ----------
by Each Reporting --------------------------------------------------------
Person With 7. Sole Dispositive Power 9,136,406

--------------------------------------------------------
8. Shared Dispositive Power
----------
- --------------------------------------------------------------------------------
9. Aggregate Amount Beneficially Owned by Each Reporting
Person 9,136,406

- --------------------------------------------------------------------------------
10. Check if the Aggregate Amount in Row (9) Excludes Certain Shares
(See Instructions)
----------------

- --------------------------------------------------------------------------------
11. Percent of Class Represented by Amount in Row (9) 7.7%

- --------------------------------------------------------------------------------
12. Type of Reporting Person (See Instructions) HC

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





Page 2 of 4 pages


SCHEDULE 13G



Item 1(a) NAME OF ISSUER:

Microchip Technology Inc.

Item 1(b) ADDRESS OF ISSUER'S PRINCIPAL EXECUTIVE OFFICES:

2355 West Chandler Blvd.
Chandler, AZ 85224-6199

Item 2(a) NAME OF PERSON FILING:

A I M Management Group Inc.

Item 2(b) ADDRESS OF PRINCIPAL BUSINESS OFFICE:

11 Greenway Plaza, Suite 100
Houston, Texas 77046

Item 2(c) CITIZENSHIP:

State of Delaware

Item 2(d) TITLE OF CLASS OF SECURITIES:

Common Stock, $.001 par value per share

Item 2(e) CUSIP NUMBER:

595017104

Item 3 TYPE OF REPORTING PERSON:

Parent Holding Company, in accordance with section
240.13d-1(b)(1)(ii)(G)

Item 4(a) AMOUNT BENEFICIALLY OWNED AS OF DECEMBER 31, 2000:

9,136,406

Item 4(b) PERCENT OF CLASS:

7.7%

Item 4(c) NUMBER OF SHARES AS TO WHICH THE PERSON HAS:

(i) Sole power to vote or to direct the vote:
9,136,406

(ii) Shared power to vote or to direct the vote:
N/A

(iii) Sole power to dispose or to direct the disposition of:
9,136,406

(iv) Shared power to dispose or to direct the disposition of:
N/A

Item 5 OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS:

N/A

Item 6 OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON:

N/A




Page 3 of 4 pages



Item 7 IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED
THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY:

A I M Advisors, Inc. and A I M Capital Management, Inc.,
Investment Advisers registered under Section 203 of the Investment
Advisers Act

Item 8 IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP:

N/A

Item 9 NOTICE OF DISSOLUTION OF A GROUP:

N/A

Item 10 CERTIFICATION:

By signing below I certify that, to the best of my knowledge and
belief, the securities referred to above were acquired and are
held in the ordinary course of business and were not acquired and
are not held for the purpose of or with the effect of changing or
influencing the control of the issuer of the securities and were
not acquired and are not held in connection with or as a
participant in any transaction having that purpose or effect.




SIGNATURE:

After reasonable inquiry and to the best of my knowledge and
belief, I certify that the information set forth in this statement
is true, complete and correct.



February 9, 2001
-------------------------------
Date

/s/ CAROL F. RELIHAN
-------------------------------
Signature


Carol F. Relihan
Senior Vice President,
Secretary and General Counsel
A I M Management Group Inc.
-------------------------------
Name/Title


**Please call Gennie Bencze at (713) 214-7230 with questions regarding this
filing.

Page 4 of 4 pages