EXHIBIT 21.1 LIST OF REGISTRANTS SUBSIDIARIES State or Other Jurisdiction Owned by Registrant of Incorporation Clear Logic, Inc. California 21 Baccarat Coyote Inc. California 100 Baccarat Silicon, Inc. California 100 Bay Semiconductor, Inc. California 100 Integrated Device Technology Asia Limited Hong Kong 100 IDT Asia, Limited Hong Kong 100 IDT Design Australia Pty Ltd. Australia 100 IDT Europe Limited United Kingdom 100 I.D.T. France S.A.R.L. France 100 IDT Foreign Sales Corporation Barbados 100 Integrated Device Technology International Holdings, California 100 Inc. Integrated Device Technology, Inc. Cayman Islands Cayman Islands 100 Corporation IDT Integrated Device Technology AB (Sweden) Sweden 100 Integrated Device Technology Europe, Inc. California 100 Integrated Device Technology GmbH Germany 100 Integrated Device Technology (Israel) Ltd. Israel 100 Integrated Device Technology S.r.l. Italy 100 Integrated Device Technology Korea, Inc. Korea 100 Integrated Device Technology (Malaysia) SDN. BHD Malaysia 100 Integrated Device Technology Realty Holdings, Inc. Philippines 40 Integrated Device Technology Holding Inc. Philippines 40 Integrated Device Technology (Philippines), Inc. Philippines 100 Integrated Device Technology Singapore (1997) Pte Ltd Singapore 100 Nippon IDT K.K. Japan 100 Quality Semiconductor, Inc. California 100 Quality Semiconductor Australia Pty. Ltd. Australia 100 1