Information card with dual power detection signals to memory dec

Details Information card with dual power detection signals to memory dec Information card with dual power detection signals to memory dec

1991-10-16

1993-05-18

Clawson, Jr., Joseph E.

Static information storage and retrieval

Powering

Data preservation

365228, 36523006, 235441, 235492, G11C 700

Patent

active

052126641

ABSTRACT:
An information card includes a plurality of volatile memory circuits backed up by an internal battery when an external power supply is OFF and a capacitor connected between an H active enable input line for enabling an address decoder which selects the plurality of volatile memory circuits and a low voltage common power supply to reduce the high frequency impedance of H active enable input line.

REFERENCES:
patent: 3562555 (1971-02-01), Ahrons
patent: 4399524 (1983-08-01), Muguruma et al.
patent: 4457021 (1984-06-01), Belisomi
patent: 4692903 (1987-09-01), Borg et al.
patent: 4800533 (1989-01-01), Arakawa
patent: 5051958 (1991-09-01), Arakawa

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