Published on May 30, 2012
Exhibit 21.1
MICROCHIP TECHNOLOGY INCORPORATED
LIST OF SIGNIFICANT SUBSIDIARIES
Microchip Technology (Thailand) Co., Ltd.
14 Moo 1, T. Wangtakien
A. Muang Chacherngsao
Chacherngsao 24000
Thailand
Microchip Technology (Barbados) II Incorporated
Hastings Business Services Limited
Hastings, Christ Church
Barbados
Microchip Technology Ireland Limited
Block 3.1
Woodford Business Park
Northern Cross
Santry
Dublin 9 Ireland