Semiconductor memory device and electronic device for...

Static information storage and retrieval – Read/write circuit – Data refresh

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C365S233100

Reexamination Certificate

active

06944082

ABSTRACT:
In the semiconductor memory device of the invention, even in the case of generation of a write access request or a refresh request in advance, an 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 a write enable signal supplied from an external device is at an inactive level. This arrangement desirably eliminates the long rate restriction of the semiconductor memory device.

REFERENCES:
patent: 4849936 (1989-07-01), Mizutani
patent: 6275437 (2001-08-01), Kim et al.
patent: 6463002 (2002-10-01), Kim et al.
patent: 6496437 (2002-12-01), Leung
patent: 6597615 (2003-07-01), Mizugaki
patent: 6700828 (2004-03-01), Mizugaki
patent: 6813212 (2004-11-01), Takahashi et al.
patent: 6834020 (2004-12-01), Takahashi et al.
patent: 2004/0156257 (2004-08-01), Mizugaki
patent: 2004/0218435 (2004-11-01), Takahashi et al.
patent: 2005/0002256 (2005-01-01), Mizugaki et al.
patent: 2005/0002257 (2005-01-01), Mizugaki 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
patent: A 2002-184174 (2002-06-01), None
patent: A 2003-196975 (2003-07-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

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

Rate now

     

Profile ID: LFUS-PAI-O-3437348

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.