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:
Nov. 12, 1991
Filed:
Mar. 04, 1991
Applicant:
Inventor:
Kazutoshi Hirayama, Hyogo, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
36518905 ; 36523008 ; 365233 ;
Abstract
A dynamic random access memory, which includes a data input buffer, a data input latch circuit, a data output buffer, and a switching circuit. For example, in an operation in a read-write cycle, at first, a data signal to be written is stored in the latch circuit 7 concurrent with inputting of an address signal in response to a signal WE. A data signal read from a memory cell is output via the output buffer in response to a signal OE. The switching circuit is turned on, and the data signal which has been latched is provided to the memory cell via a pair of I/O lines. As a result, the time required for the operation in the read-write cycle is shortened.