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:
Dec. 30, 1997

Filed:

Jul. 23, 1996
Applicant:
Inventors:

Tomio Suzuki, Hyogo, JP;

Shigeru Mori, Hyogo, JP;

Takayuki Miyamoto, Hyogo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G11C / ;
U.S. Cl.
CPC ...
365233 ; 36523008 ; 36518905 ; 365239 ;
Abstract

In a pipeline burst EDO operation, a latency circuit 215 detects change of an internal column address strobe signal ZCASF from an active state to a non-active sate in the first cycle, and brings a signal OEMB into an active state. When a writing operation mode is specified, and an internal output enable signal ZOEF is in an active state, an output buffer control signal OEM attains an active state in response to the first activation edge of the internal column address strobe signal ZCASF after activation of the signal OEMB. Since the signal OEMB has already been in an active state in the first cycle of the signal ZCASF, a delay time for change of the signal OEM in response to activation of the signal ZCASF in the second cycle can be decreased.


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