Associative memory

Details Associative memory Associative memory

1992-05-21

1996-01-16

LaRoche, Eugene R.

Static information storage and retrieval

Associative memories

Ferroelectric cell

36523003, 36523008, 365205, 365210, G11C 1500

Patent

active

054854180

ABSTRACT:
An associative memory comprises a CAM array which is divided into a plurality of blocks, block select means, decoder means, and output means. The associative memory receives an externally supplied input address having first, second, and third parts. Which entry row in the CAM should be compared with the first part (TAG address) of the input address is determined by the second and third parts of the input address. The block select means responsive to the second part of the input address selects a block in the CAM. The decoder means responsive to the third part of the input address selects one out of a plurality of entry rows in the selected block. A comparison operation is carried out in each of the entry rows in the selected block. Since not all the entry rows are selected for comparison operations, power consumption can be reduced.

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patent: 4622653 (1986-11-01), McElroy
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patent: 4959811 (1990-09-01), Szczepanek
patent: 4972374 (1990-11-01), Wang et al.

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