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. 24, 1998
Filed:
Sep. 22, 1997
Applicant:
Inventor:
Hiroaki Iwaki, Tokyo, JP;
Assignee:
NEC Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365203 ; 365233 ; 365205 ; 365207 ;
Abstract
A semiconductor memory device includes precharging circuit for supplying a current to selected digit line pair and equalizing circuit for equalizing potential of complementary digit lines forming all of digit line pairs. Only digit line pair selected by a column address input signal is precharged by the precharging circuit. The potentials of the complementary digit lines forming all digit line pairs is equalized respectively by the equalizing circuit after precharging operation.