Systems and methods for memory control

Details Systems and methods for memory control Systems and methods for memory control

1995-06-07

1996-12-03

Mullins, James B.

Static information storage and retrieval

Read/write circuit

Including reference or bias voltage generator

365195, 365229, G11C 700

Patent

active

055815073

ABSTRACT:
A memory controller for supplying backup battery power when a main power supply voltage drops together with programmable plus power fail write protection. The controller includes supravoltage induced sleep mode operation, MOS switching between backup batteries during backup operation based on battery voltage levels and discharge circuitry for battery disposal.

REFERENCES:
patent: 4451742 (1984-05-01), Aswell
patent: 4492876 (1985-01-01), Colbert et al.
patent: 4730121 (1988-03-01), Lee et al.
patent: 4992983 (1991-02-01), Suzuki
patent: 5124946 (1992-06-01), Takahashi
patent: 5315549 (1994-05-01), Scherpenberg et al.

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