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:
Jun. 24, 1997
Filed:
Aug. 30, 1996
Hirokazu Nagashima, Tokyo, JP;
NEC Corporation, Tokyo, JP;
Abstract
In order to decrease peak value of current consumed by sense amplifiers provided in a high-speed read-out semiconductor memory for sensing and amplifying data of certain words of addresses having the same upper bits with upper bits of a read-out address when the upper bits are changed from those of its preceding read-out address, the sense amplifiers are divided into some groups. A group of sense amplifiers for sensing and amplifying data of words including a word indicated by the read-out address is activated firstly and other groups are controlled to be activated a little delayed according to logic of lower bits of the read-out address when the upper bits are changed. Therefore, the peak value of the current consumption Can be decreased without any operational delay.