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:
Dec. 22, 1998
Filed:
Jul. 10, 1997
Applicant:
Inventor:
Mamoru Fujita, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365233 ; 36523003 ; 36523006 ;
Abstract
To obtain high access speed regardless of a structure and operating characteristics of an external central processing unit (CPU), a synchronous dynamic random access memory (DRAM) system includes first and second DRAM cell arrays, and a first address generator for outputting a first address and a second address respectively to the first and second DRAM cell arrays simultaneously in a first mode. In a second mode, the first address generator outputs the first address and the second address respectively to the first and second DRAM cell arrays sequentially.