Semiconductor memory

Details Semiconductor memory Semiconductor memory

1994-06-17

1996-05-07

Nguyen, Viet Q.

Static information storage and retrieval

Powering

Data preservation

365200, 365228, 395489, 395492, 39542111, 39518204, 39518212, G06F 1100

Patent

active

055153330

ABSTRACT:
A semiconductor memory is provided which includes an electrically rewritable non-volatile semiconductor memory. A data control circuit is also provided which includes an ECC circuit and which operates to control the writing and reading operations of data to and from the non-volatile semiconductor memory. In order to temporarily hold data which is to written into the non-volatile semiconductor memory, a volatile cache semiconductor memory is utilized. This volatile cache semiconductor memory has a storage capacity which is equal to or less than the storage capacity of the non-volatile semiconductor memory itself. A data control circuit is also provided to read out data from the non-volatile semiconductor memory and the volatile cache semiconductor memory, and to transfer the data from the volatile semiconductor to the non-volatile semiconductor memory.

REFERENCES:
patent: 5297148 (1994-03-01), Harari et al.
patent: 5317720 (1994-05-01), Stamm et al.

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