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.

Date of Patent:
Aug. 17, 2004

Filed:

Feb. 10, 2003
Applicant:
Inventor:

Kazuhide Kurosaki, Kawasaki, JP;

Assignee:

Fujitsu Limited, Kawasaki, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/00 ;
U.S. Cl.
CPC ...
G11C 7/00 ;
Abstract

A semiconductor memory including an address change detection unit for detecting a change of an address and outputting an address change detection signal, a selection unit for selectively switching the polling data and the read data by a polling signal, and outputting its data to the output buffer, and a delay unit for inhibiting the polling signal from being transferred to the selection unit while the address change detection signal is activated. When the polling signal changes while a sense amplifier senses data, the logic level of a signal output from the output buffer is inhibited from being changed. This prevents any malfunction caused by output noise generated during the data sense operation of the sense amplifier.


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