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:
Feb. 15, 2000
Filed:
Dec. 16, 1998
Applicant:
Inventors:
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C / ; G11C / ;
U.S. Cl.
CPC ...
365200 ; 36523008 ; 365233 ;
Abstract
In a synchronous semiconductor memory device, a predecoder is provided between a former stage address input register formed of first latch circuits and a latter stage address input register formed of second latch circuits. The first and second latch circuits operate in response to first and second internal clock signals complementary to each other. A predecode signal can be latched by the second latch circuit even when the generation of the predecode signal is not in time for the rise of the second internal dock signal due to delay of the input of an external address signal. Accordingly, the set up time for the external address signal can be reduced.