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:
Jul. 08, 2014
Filed:
Oct. 31, 2012
Applicant:
Lsi Corporation, Milpitas, CA (US);
Inventors:
Richard J. Stephani, Saint Paul, MN (US);
Gordon W. Priebe, Champlin, MN (US);
Ankur Goel, Haryana, IN;
Assignee:
LSI Corporation, San Jose, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G11C 8/00 (2006.01); G11C 8/08 (2006.01); G11C 8/10 (2006.01);
U.S. Cl.
CPC ...
G11C 8/08 (2013.01); G11C 8/10 (2013.01);
Abstract
A memory array is divided into multiple segments, each segment having one or more rows of bitcells. Each segment has control circuitry that controls whether the segment is in an active mode or a power-saving, sleep mode. The control circuitry ensures that a segment transitions from sleep mode to active mode before a row of the segment is accessed by driving a corresponding wordline high. The control circuitry also ensures that, at the end of a row access, the wordline is driven low before the corresponding segment is transitioned from active mode to sleep mode.