Attached files

file filename
EX-32.1 - EX-32.1 - SILICON LABORATORIES INC.a2222910zex-32_1.htm
EX-23.1 - EX-23.1 - SILICON LABORATORIES INC.a2222910zex-23_1.htm
EX-31.1 - EX-31.1 - SILICON LABORATORIES INC.a2222910zex-31_1.htm
EX-31.2 - EX-31.2 - SILICON LABORATORIES INC.a2222910zex-31_2.htm
EXCEL - IDEA: XBRL DOCUMENT - SILICON LABORATORIES INC.Financial_Report.xls
10-K - 10-K - SILICON LABORATORIES INC.a2222910z10-k.htm

QuickLinks -- Click here to rapidly navigate through this document


Exhibit 21


Subsidiaries of the Registrant

 
  Organized Under Law Of
Shenzhen Silicon Laboratories Technology Co. Ltd.    China
Silicon Laboratories France SAS   France
Silicon Laboratories GmbH   Germany
Silicon Laboratories Asia Pacific, Limited   Hong Kong
Silicon Laboratories Hungary Korlátolt Felelősségű Társaság   Hungary
Silicon Laboratories Semiconductors India Private Limited   India
Silicon Laboratories Ireland Limited   Ireland
Silicon Laboratories Italy, S.r.l.    Italy
Silicon Laboratories Y.K.    Japan
Silicon Laboratories Norway AS   Norway
Silicon Laboratories International Pte. Ltd.    Singapore
Silicon Laboratories Technology UK Limited   United Kingdom
Silicon Laboratories UK Limited   United Kingdom
Silicon Labs Spectra, Inc.    State of California
Silicon Laboratories Technology, LLC   State of Delaware
Silicon Labs Ember, Inc.    State of Delaware



QuickLinks

Subsidiaries of the Registrant