The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 15, 2011
Filed:
Jun. 25, 2009
Hiroki Murakami, Kanagawa, JP;
Kazuhiro Kurihara, Tokyo, JP;
Hiroki Murakami, Kanagawa, JP;
Kazuhiro Kurihara, Tokyo, JP;
Spansion LLC, Sunnyvale, CA (US);
Abstract
A semiconductor device includes: a first sector () having data that are all to be erased and having flash memory cells; a second sector () having data that are all to be retained and having flash memory cells; a sector select circuit () selecting a pair of sectors from among sectors during erasing the data in the first sector, said pair of sectors being the first sector and the second sector; and an SRAM array (storage) () retaining the data of the second sector. The present invention can provide a semiconductor device in which a reduced number of sector select circuits is used so that the area of memory cell array can be reduced and provide a method of controlling the semiconductor device.