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:
Aug. 06, 1996
Filed:
May. 19, 1994
Applicant:
Inventors:
Masao Mizukami, Yokohama, JP;
Yoichi Sato, Iruma, JP;
Satoshi Shinagawa, Akishima, JP;
Yukio Nakano, Zama, JP;
Assignees:
Hitachi, Ltd., Tokyo, JP;
Hitachi VLSI Engineering Corp., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
36523005 ; 36523001 ; 36523006 ; 365154 ;
Abstract
Write column selection MOSFETs of memory cells MC are coupled with, for example, the earth potential of the circuit. Write column selection signals supplied to these MOSFETs are formed selectively according to the column selection address signal and the write data. Thereby the write column selection MOSFETs of the memory cells MC function as a substantial write means. That is, the write column selection signal lines are used as the data lines at the same time.