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:
Jun. 26, 2012
Filed:
Aug. 11, 2009
Applicant:
Hiroyuki Kobatake, Kanagawa, JP;
Inventor:
Hiroyuki Kobatake, Kanagawa, JP;
Assignee:
Renesas Electronics Corporation, Kawasaki-shi, Kanagawa, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
An SRAM includes a memory cell and a precharge circuit. The precharge circuit precharges a bit line pair with a power supply voltage before writing a data in the memory cell or before reading a data therefrom at a time of a normal mode, and which feeds a power supply voltage to at least a low level data-holding node of a node pair of the memory cell at a time of a read test mode, between time for writing a data in the memory cell and time for reading a data therefrom.