Device for detecting a reduction in a supply voltage

Details Device for detecting a reduction in a supply voltage Device for detecting a reduction in a supply voltage

1996-09-09

1998-05-05

Nguyen, Viet Q.

Static information storage and retrieval

Powering

324765, 324769, 324771, G11C 11407

Patent

active

057485488

ABSTRACT:
A circuit for detecting a reduction below a threshold value in a supply voltage provided to storage devices integrated into a semiconductor. A comparator is coupled between a voltage supply line and a signal ground and has a first or reference input and a second or test-signal input. A generator of a stable voltage reference has an output coupled to the first input and a divider of the supply voltage coupled to the second input of the comparator. A circuit means is arranged to feed the voltage supply line with the higher of the supply voltage and a programming voltage also provided to the storage devices.

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patent: 4560937 (1985-12-01), Finger
patent: 4794564 (1988-12-01), Watanabe
patent: 4975883 (1990-12-01), Baker et al.
patent: 5083045 (1992-01-01), Yim et al.
patent: 5109187 (1992-04-01), Guliani
patent: 5199032 (1993-03-01), Sparks et al.
patent: 5426616 (1995-06-01), Kajigaya et al.
patent: 5426626 (1995-06-01), Kajigaya
patent: 5583820 (1996-12-01), Padoan et al.

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