Self refresh period control circuits

Details Self refresh period control circuits Self refresh period control circuits

2007-07-24

2007-07-24

Phan, Trong (Department: 2827)

Static information storage and retrieval

Read/write circuit

Data refresh

C365S211000, C365S233100

Reexamination Certificate

active

11190430

ABSTRACT:
In a self refresh period control circuit for controlling a refresh period of a semiconductor memory device in response to operating temperature of the device, a temperature sensor part generates a first period control signal in response to a self refresh start signal or self refresh completion signal, senses operating temperature of the semiconductor memory device in response to a clock signal generated by the self refresh start signal, and generates a corresponding second period control signal. A period magnification control part controls a self refresh period in response to the first and second period control signals. Accordingly, a refresh period characteristic change based on operating temperature, which is causable by an initial self refresh, is implemented.

REFERENCES:
patent: 4716551 (1987-12-01), Inagaki
patent: 5446696 (1995-08-01), Ware et al.
patent: 5532968 (1996-07-01), Lee
patent: 6438057 (2002-08-01), Ruckerbauer
patent: 6756856 (2004-06-01), Song et al.
patent: 6768693 (2004-07-01), Feurle et al.
patent: 6940775 (2005-09-01), Schneider et al.
patent: 7027343 (2006-04-01), Sinha et al.
patent: 7035157 (2006-04-01), Chang
patent: 2003/0156438 (2003-08-01), Neild et al.

Affiliated with

Also associated with

Rating

Self refresh period control circuits does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self refresh period control circuits, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self refresh period control circuits will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3785345