Memory circuit with automatic refresh function

Details Memory circuit with automatic refresh function Memory circuit with automatic refresh function

2006-04-28

2008-03-18

Nguyen, VanThu (Department: 2824)

Static information storage and retrieval

Read/write circuit

Data refresh

C365S189040

Reexamination Certificate

active

07345942

ABSTRACT:
According to the present invention, a memory circuit requiring refresh operations a first circuit which receives a command in synchronization with a clock signal, and which generates a first internal command internally and a second circuit which generates a second internal command, e.g., a refresh command, internally in a prescribed refresh cycle. And an internal circuit, according to said first internal command, executes corresponding control through clock-synchronous operations, and when said refresh command is issued, sequentially executes control corresponding to the refresh command and control corresponding to said first internal command through clock-asynchronous operations. According to the present invention, when a refresh timing signal is generated, the refresh operation can be intrupted among the external command operations.

REFERENCES:
patent: 4829484 (1989-05-01), Arimoto et al.
patent: 4956820 (1990-09-01), Hashimoto
patent: 5323352 (1994-06-01), Miyata et al.
patent: 5627791 (1997-05-01), Wright et al.
patent: 5901101 (1999-05-01), Suzuki et al.
patent: 6023440 (2000-02-01), Kotani et al.
patent: 6137743 (2000-10-01), Kim
patent: 6587918 (2003-07-01), Christenson
patent: 0 616 331 (1994-09-01), None
patent: 58-48293 (1983-03-01), None
patent: 61-029489 (1986-02-01), None
patent: 61-71494 (1986-04-01), None
patent: 2000-113699 (2000-04-01), None
patent: 11-268772 (2000-05-01), None
patent: 11-298354 (2000-10-01), None

Affiliated with

Also associated with

Rating

Memory circuit with automatic refresh function does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Memory circuit with automatic refresh function, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Memory circuit with automatic refresh function will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3973764