APPLIED MICRO CIRCUITS CORP, S-8, EX-23.1, 2000-10-30

APPLIED MICRO CIRCUITS CORP
S-8, EX-23.1, 2000-10-30
SEMICONDUCTORS & RELATED DEVICES

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                                                                    EXHIBIT 23.1

              CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

We consent to the incorporation by reference in the Registration Statement on
Form S-8 pertaining to the MMC Networks, Inc. 1993 Stock Plan, MMC Networks,
Inc. 1997 Stock Plan, MMC Networks, Inc. 1997 Director Option Plan, and MMC
Networks, Inc. 1997 Employee Stock Purchase Plan of our report dated April 19,
2000, with respect to the consolidated financial statements and schedule of
Applied Micro Circuits Corporation included in the Annual Report on Form 10-K
for the fiscal year ended March 31, 2000, filed with the Securities and Exchange
Commission.


                                    /s/ ERNST & YOUNG LLP
                                    ----------------------------------------
                                    ERNST & YOUNG LLP


San Diego, California
October 24, 2000