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. 10, 1998
Filed:
Feb. 29, 1996
Applicant:
Inventors:
Assignees:
Hitachi, Ltd., Tokyo, JP;
Texas Instruments Incorporated, Dallas, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
G11C / ; G11C / ;
U.S. Cl.
CPC ...
371 211 ; 371 212 ; 365201 ;
Abstract
A memory array is logically and/or physically divided into a plurality of blocks to allow test by individual blocks. When a plurality of column address strobe signals are provided and memory accessing is made by a plurality of bits to the memory array corresponding to the column address strobe signal, tests are independently conducted for each memory array by using the column address strobe signal.