Semiconductor memory device

Details Semiconductor memory device Semiconductor memory device

1994-09-30

1996-11-19

Popek, Joseph A.

Static information storage and retrieval

Systems using particular element

Capacitors

36518901, G11C 1124

Patent

active

055769870

ABSTRACT:
A semiconductor memory device including a write protect information element for storing write permit information or write protect information for a word line or a bit line, and a write protect detection element for outputting a write permit or protect signal to a write circuit in accordance with the information stored in the write protect information element for the word line or bit line selected by a row decoder or a column decoder. When the write circuit receives a write protect signal output from the write protect detection means in the case that the write protect information means stores write protect information, the write circuit does not output a data signal.

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Shubat, A., et al., "Mappable Memory Subsystem for High Speed Applications", 1989 Symposium on VLSI Circuits: Digest of Technical Papers, 25-27 May 1989, Kyoto, Japan, pp. 47-48.

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