QuickLinks -- Click here to rapidly navigate through this document

EXHIBIT 21.1

MICRON TECHNOLOGY, INC.

SUBSIDIARIES OF THE REGISTRANT

Name	State (or jurisdiction) in which Organized
KMT Semiconductor Limited	Japan
Micron Europe Limited     Also does business as Crucial Technology Europe	United Kingdom
Micron International Sales, Inc.	Barbados
Micron Semiconductor Asia Pte. Ltd.     Also does business as Crucial Technology Asia	Singapore
Micron Semiconductor (Deutschland) GmbH	Germany
Micron Semiconductor Products, Inc.     Also does business as Crucial Technology	Idaho
Micron Technology Asia Pacific, Inc.	Idaho
Micron Technology Italia S.r.l.	Italy
Micron Technology Japan, K.K.	Japan
Micron Technology Services, Inc.	Idaho
Micron Technology Texas, LLC	Idaho

QuickLinks

EXHIBIT 21.1