Programmable logic device memory cell circuit

Details Programmable logic device memory cell circuit Programmable logic device memory cell circuit

1998-10-06

2000-09-05

Elms, Richard

Static information storage and retrieval

Powering

Data preservation

365200, 3652257, 365226, G11C 700

Patent

active

061153125

ABSTRACT:
A memory cell circuit for a programmable logic device is provided that allows groups of memory cells to be powered down when one or more of the memory cells in a group is defective. Each memory cell contains two cross-coupled inverters for storing programming data for the programmable logic device. A first inverter in each cell is powered by a global power signal. A second inverter in each cell is powered by a power supply signal. The memory cells are powered down by taking the global power signal low while maintaining the power supply signal high. Because the second inverter remains active during power down, the memory cells may be shut down completely. The memory cell circuit may be used to set all of the memory cells to a known state upon power up.

REFERENCES:
patent: 4780847 (1988-10-01), Ito
patent: 4928266 (1990-05-01), Abbott et al.
patent: 5018102 (1991-05-01), Houston
patent: 5307319 (1994-04-01), Kohketsu et al.
patent: 5313430 (1994-05-01), Rawlins et al.
patent: 5604453 (1997-02-01), Pederson
patent: 5652730 (1997-07-01), Kono et al.
patent: 5671179 (1997-09-01), Javanifard
patent: 5696455 (1997-12-01), Madurawe
patent: 5768207 (1998-06-01), Raad et al.
patent: 6041000 (2000-05-01), McClure et al.

Affiliated with

Also associated with

Rating

Programmable logic device memory cell circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2219511