Semiconductor memory device

Details Semiconductor memory device Semiconductor memory device

1988-07-26

1990-08-21

Popek, Joseph A.

Static information storage and retrieval

Read/write circuit

Multiplexing

36523002, 365222, G11C 700

Patent

active

049512510

ABSTRACT:
A semiconductor memory device is provided with a memory portion, a logical operation circuit which receives the data signal read out from such memory portion and the input data signal to form data to be offered to such memory portion, and a gate circuit. In case a data input operation is required which eliminates the logical operation, the input data signal is fed not via the logical operation circuit, but via the gate circuit directly to the memory portion. The semiconductor memory device constructed as above permits a high speed operation and is suited for use as the memory for image processing.

REFERENCES:
patent: 4482985 (1984-11-01), Itoh et al.
patent: 4660180 (1987-04-01), Tanimura et al.
patent: 4680737 (1987-07-01), Oishi et al.
patent: 4766570 (1988-08-01), Yamaguichi et al.

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