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. 10, 1990
Filed:
Feb. 22, 1989
Applicant:
Inventor:
Tetsuichiro Ichiguchi, Hyogo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365233 ; 365207 ;
Abstract
A dynamic random access memory comprises memory cells (MA1-Man) and sense amplifies (SA1-SAn) in a memory array region III and memory cells (MB1-MBn) and sense amplifies (SB1-SBn) in a memory array region IV. In reading operation, first, the sense amplifiers in one region comprising a memory cell designated by an address signal are activated and then sense amplifiers in the other region are activated. As a result, since amplifying operation by the sense amplifiers is performed sequentially, a peak value of a current consumed by the amplification can be reduced.