Static information storage and retrieval – Associative memories – Ferroelectric cell
Patent
1985-11-12
1988-04-26
Hecker, Stuart N.
Static information storage and retrieval
Associative memories
Ferroelectric cell
365174, 365179, 365189, 365195, G11C 700, G11C 1500, G11C 1504
Patent
active
047409177
ABSTRACT:
Memory comprising a matrix of conventional Harper pnp cells and peripheral circuits which allows it to be used either as a random access memory or as an associative memory. In addition to the read/write circuits which are inhibited in search mode, it comprises search mode control circuits 7-1 to 7-m to provide the memory cells with a search argument DI-1 to DI-m and search circuits 11-1 to 11-n connected to the word lines for detecting the match or mismatch conditions. A search restore circuit 15 common to all word lines WL is used to restore the work lines to a quiescent voltage once the search operation is completed. Circuits 7 and 11 are inhibited in read/write mode.
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Denis Bernard
Omet Dominique
Bowler Alyssa H.
Hecker Stuart N.
International Business Machines - Corporation
Limanek Stephen J.
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