Self-isolating cross-coupled sense amplifier latch circuit

Details Self-isolating cross-coupled sense amplifier latch circuit Self-isolating cross-coupled sense amplifier latch circuit

1976-06-30

1977-10-11

Fears, Terrell W.

Communications: electrical

Digital comparator systems

307289, G11C 1140

Patent

active

040538737

ABSTRACT:
Disclosed is a self-isolating cross-coupled sense amplifier latch circuit having five enhancement mode field effect transistor devices and two depletion mode field effect transistor devices. The first and second field effect transistors form a cross-coupled pair with true and complement outputs being available at the cross-coupled nodes. A third field effect transistor is connected to a common connection between the source electrodes of the cross-coupled pair and is used to establish a race condition after a small difference in potential has been applied to the aforementioned output nodes. A pair of depletion mode devices are connected as diodes between a positive potential (VH) and each of the output nodes, respectively. Each of the output nodes is connected to a respective bit line of a column of memory cells through enhancement mode field effect transistors connected as third and fourth unidirectionally conducting devices.

REFERENCES:
patent: 3284782 (1966-11-01), Burns
patent: 3638204 (1972-01-01), Kolankowsky

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