Small signal memory system with reference signal

Details Small signal memory system with reference signal Small signal memory system with reference signal

1979-12-27

1981-05-26

Hecker, Stuart N.

Static information storage and retrieval

Read/write circuit

Differential sensing

365205, 365210, G11C 700, G11C 706

Patent

active

042701902

ABSTRACT:
A memory array of cells produces output signals having either one of a high value (i.e. V.sub.H) or a low value (i.e. V.sub.L). The difference between V.sub.H and V.sub.L is significantly less than the operating voltage (e.g. V.sub.DD) applied across the memory cells and V.sub.H and V.sub.L are offset towards one of the voltage rails (e.g. V.sub.DD or ground ). The memory cell output signals are compared to a reference signal (V.sub.R) derived either from a "dummy" cell or from a memory cell being sensed, where V.sub.R has a value which is less positive than V.sub.H but more positive than V.sub.L. The reference signal and a memory cell signal, are applied to a sense amplifier which is responsive to a relatively small difference between the two signals and which can produce an output (V.sub.O) which is approximately symmetrical with respect to the mid point (V.sub.DD /2) of the operating voltage. A signal (V.sub.H) more positive than V.sub.R causes V.sub.O to be more positive than V.sub.DD /2 and a signal (V.sub.L) less than V.sub.R causes V.sub.O to be less positive than V.sub.DD /2. Thereby, high speed sensing, amplification and centering of the small, offset, memory signals are achieved simultaneously.

REFERENCES:
patent: 3600609 (1971-08-01), Christensen
patent: 4031524 (1977-06-01), Heeren
patent: 4136292 (1979-01-01), Suzuki et al.

Affiliated with

Also associated with

Rating

Small signal memory system with reference signal does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-456487