Memory retention system for volatile memory devices

Details Memory retention system for volatile memory devices Memory retention system for volatile memory devices

1988-05-05

1990-07-24

Fears, Terrell W.

Static information storage and retrieval

Powering

Data preservation

365226, G11C 1300

Patent

active

049439618

ABSTRACT:
A memory retention system for an electronic apparatus having several logic devices driven by a common oscillator includes a capacitor for retaining a voltage on at least one of the logic devices and means for stopping the oscillator during a power failure. The logic devices have respective oscillator input terminals which are connected together and to the input terminal of the oscillator rather than to the output terminal of the oscillator to reduce current drain from the capacitor.

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patent: 4638464 (1987-01-01), Cranford, Jr. et al.
patent: 4672585 (1987-06-01), Nollet
patent: 4673829 (1987-06-01), Gupta
patent: 4689495 (1987-08-01), Liu
patent: 4752699 (1988-06-01), Cranford, Jr. et al.
patent: 4800528 (1989-01-01), Geddes

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