Nonvolatile content addressable memory

Details Nonvolatile content addressable memory Nonvolatile content addressable memory

1998-07-06

1999-07-27

Mai, Son

Static information storage and retrieval

Associative memories

Ferroelectric cell

365145, 365210, G11C 1500, G11C 1122

Patent

active

059301619

ABSTRACT:
Binary and multiple-valued nonvolatile content addressable memories (NVCAMs) use ferroelectric capacitors as nonvolatile storage elements. The operation of the NVCAMs is accessed either in serial or in parallel. In a 2-bit NVCAM of a parallel access structure, search operation is performed by a simultaneous access to a 4-level polarization of the ferroelectric capacitor. The total number of search operations is reduced.

REFERENCES:
patent: 5291436 (1994-03-01), Kamisawa
patent: 5640030 (1997-06-01), Kenney
patent: 5680344 (1997-10-01), Seyyedy
patent: 5828615 (1998-10-01), Mukunoki et al.

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