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:
Dec. 27, 2005
Filed:
Sep. 27, 2004
Applicants:
Takeshi Fujino, Hyogo, JP;
Kazutami Arimoto, Hyogo, JP;
Hiroki Shimano, Hyogo, JP;
Inventors:
Assignee:
Renesas Technology Corp., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C007/00 ;
U.S. Cl.
CPC ...
Abstract
A memory cell unit includes a first storage element and a second storage element for storing complementary data with each other. In a selected state, the first and second storage elements are connected to complementary bit lines, respectively at a time. In a standby state, the bit lines are precharged to a voltage (Vccs or GND) corresponding to the data stored in the memory cell unit. Refresh-free, low-current-consumption semiconductor memory device operating stably even under a low power supply voltage can be implemented.