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:
Mar. 08, 1994
Filed:
Dec. 30, 1991
Applicant:
Inventor:
Toshiyuki Ogawa, Hyogo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
36523001 ; 36518901 ; 36518905 ; 36523006 ;
Abstract
A semiconductor memory device according to the present invention is a dynamic type semiconductor memory device carrying out pipe line processing in page mode, including two column decoders, two address latches, two preamplifiers and two write drivers for one memory cell array. A column address supplied from an address buffer is provided sequentially and alternately to each of the address latches, whereby one of the column decoders, one of the preamplifiers and so on corresponding to the address latch operate alternately.