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:
May. 14, 2002
Filed:
Mar. 20, 2001
Applicant:
Inventor:
Tadao Aikawa, Kawasaki, JP;
Assignee:
Fujitsu Limited, Kawasaki, JP;
Primary Examiner:
Int. Cl.
CPC ...
G11C 8/00 ;
U.S. Cl.
CPC ...
G11C 8/00 ;
Abstract
A semiconductor memory device outputs data in synchronization with an external clock signal. The semiconductor memory device comprises a first frequency divider dividing a frequency of the external clock signal supplied thereto so as to generate a first internal clock signal; a delay circuit delaying the external clock signal; a second frequency divider dividing a frequency of a signal supplied from the delay circuit so as to generate a second internal clock signal; and a data control unit outputting the data according to the first internal clock signal and the second internal clock signal.