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.

Date of Patent:
Jun. 16, 2015

Filed:

Dec. 18, 2012
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Derick G. Behrends, Rochester, MN (US);

Todd A. Christensen, Rochester, MN (US);

Travis R. Hebig, Rochester, MN (US);

Michael Launsbach, Rochester, MN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 (2006.01); G11C 7/12 (2006.01); G11C 11/419 (2006.01);
U.S. Cl.
CPC ...
G11C 7/12 (2013.01); G11C 11/419 (2013.01);
Abstract

A static random access memory (SRAM) having two or more SRAM memory cells connected with a write bit line (WBL) and a write bit line complement (WBLC) is disclosed. The SRAM may include a write driver logic coupled to the WBL and the WBLC. The write driver logic is adapted to drive a selected bit line of the WBL and the WBLC to a voltage uplevel below a first supply voltage and shut off the drive to the selected bit line when the selected bit line reaches the uplevel. The write driver logic is further adapted to drive an unselected bit line of the WBL and the WBLC to a downlevel, in conjunction with the driving of the selected bit line to the uplevel, where the downlevel is a second supply voltage lower than the first supply voltage.


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