Folded bit line-shared sense amplifiers

Details Folded bit line-shared sense amplifiers Folded bit line-shared sense amplifiers

1980-10-10

1982-09-21

Fears, Terrell W.

Static information storage and retrieval

Read/write circuit

Having particular data buffer or latch

365203, C11C 1300

Patent

active

043510345

ABSTRACT:
A folded bit line-shared sense amplifier arrangement is described for sensing the logic state of an accessed memory cell in a dynamic MOS random access memory. In the preferred embodiment, a shared sense amplifier is positioned between and coupled to first and second bit lines via first and second isolation transistors. The same shared sense amplifier is also positioned between and coupled to third and fourth bit lines via third and fourth isolation transistors. When the state of an accessed memory cell is to be sensed, its memory cell capacitor is coupled to a selected bit line and a dummy cell capacitor is coupled to the bit line adjacent the selected bit line. A decoding circuit selectively activates the shared sense amplifier to sense a difference in voltage between the selected bit line and its adjacent bit line so as to determine the logic state associated with the accessed memory cell. Then, the sense amplifier latches into this logic state for reading by the input/output buss lines. After the logic state is read, the selecting circuit enables the memory cell capacitor to be refreshed for further sensing by the sense amplifier.

REFERENCES:
patent: 3560940 (1971-02-01), Gaensslen
patent: 4279023 (1981-07-01), Houghton

Affiliated with

Also associated with

Rating

Folded bit line-shared sense amplifiers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Folded bit line-shared sense amplifiers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Folded bit line-shared sense amplifiers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2079125