Non-volatile IC memory

Details Non-volatile IC memory Non-volatile IC memory

1992-09-11

1994-04-19

LaRoche, Eugene R.

Static information storage and retrieval

Addressing

36518901, 36518905, 36523008, G11C 800, G11C 700

Patent

active

053052765

ABSTRACT:
A non-volatile IC memory comprising in addition to a PROM region divided into blocks a RAM region having a capacity corresponding to one of the blocks wherein the entire data stored in the corresponding block in the PROM region designated by an address sent out from the outside is transferred to the RAM region. After data in the corresponding portion in the RAM region designated by the address is rewritten by data sent out from the outside, the data in the RAM region is written back in the corresponding block of the PROM, thereby data is rewritten by a word unit or a bit unit.

REFERENCES:
patent: 4402065 (1983-08-01), Taylor
patent: 4575819 (1986-03-01), Amin
patent: 4610000 (1986-09-01), Lee
patent: 4785425 (1988-11-01), Lavelle
patent: 4982378 (1991-01-01), Matsushita
patent: 5062078 (1991-10-01), Arakawa
patent: 5109359 (1992-04-01), Sakakibara et al.
patent: 5130946 (1992-07-01), Watanabe
patent: 5200600 (1993-04-01), Shinagawa

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