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:
Apr. 19, 2010
Filed:
Jun. 08, 2005
Applicants:
Ryu Makabe, Tokyo, JP;
Masaki Tsukude, Tokyo, JP;
Hirotoshi Sato, Tokyo, JP;
Shinichi Kobayashi, Kumamoto, JP;
Inventors:
Ryu Makabe, Tokyo, JP;
Masaki Tsukude, Tokyo, JP;
Hirotoshi Sato, Tokyo, JP;
Shinichi Kobayashi, Kumamoto, JP;
Assignee:
Renesas Technology Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 8/00 (2005.12);
U.S. Cl.
CPC ...
Abstract
Successive data read access with a final address specified is detected by a command mode detecting circuit to set a command mode entry status. In the command mode entry, a command of designating an internal state is made acceptable in accordance with a predetermined external signal. Consequently, a semiconductor memory device that enters a command mode, maintaining compatibility of pins and signal timings with a conventional status memory is provided.