Integrated structure microcomputer provided with non-volatile RA

Details Integrated structure microcomputer provided with non-volatile RA Integrated structure microcomputer provided with non-volatile RA

1984-01-31

1987-01-20

Popek, Joseph A.

Static information storage and retrieval

Powering

Data preservation

365226, G11C 0000

Patent

active

046384650

ABSTRACT:
An integrated structure composed of a processing unit (CPU), ROM memory, RAM memory and other optional functions, such as input/output etc., is arranged as a microcomputer, in which all or part of the RAM is a non-volatile memory which carries out during normal operation all the functions of a RAM while also being able, through suitable circuit structures, to store in a permanent (non-volatile) way the data contained therein, retaining the data when the power feed to the circuit is cut off, and recalling the same data at power turn-on.
The structure provides for the handling of the non-volatile memory in its different functions, and its arrangement and compatibility with the processing unit, through suitable circuitry and control signals.

REFERENCES:
patent: 3980935 (1976-09-01), Worst
patent: 4399524 (1983-08-01), Muguruma et al.

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