Semiconductor memory device and electronic device

Details Semiconductor memory device and electronic device Semiconductor memory device and electronic device

2005-08-02

2005-08-02

Le, Vu A. (Department: 2824)

Static information storage and retrieval

Read/write circuit

Data refresh

C365S149000

Reexamination Certificate

active

06925023

ABSTRACT:
In the semiconductor memory device of the invention, while a write enable signal supplied from an external device is at an active level representing a data writing request, an access control module prohibits start of any of a read access operation, a write access operation, and a refresh operation, even in the case of generation of any one of a read access request, a write access request, and a refresh request. Even in the case of generation of a write access request or a refresh request in advance, the access control module preferentially executes a read access operation in response to a read access request generated by a change of an external access timing signal to an inactive level while the write enable signal is at an inactive level. This arrangement desirably eliminates the long rate restriction of the semiconductor memory device.

REFERENCES:
patent: 4984208 (1991-01-01), Sawada et al.
patent: 5323352 (1994-06-01), Miyata et al.
patent: 6463002 (2002-10-01), Kim et al.
patent: 6597615 (2003-07-01), Mizugaki
patent: 6834020 (2004-12-01), Takahashi et al.
patent: 2002/0001247 (2002-01-01), Kim et al.
patent: 2003/0063512 (2003-04-01), Takahashi et al.
patent: A 2001-357671 (2001-12-01), None
patent: A 2002-25252 (2002-01-01), None
patent: A 2002-74945 (2002-03-01), None

Affiliated with

Also associated with

Rating

Semiconductor memory device and electronic device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Semiconductor memory device and electronic device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor memory device and electronic device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3465053