Content addressable memory implementation with random access mem

Details Content addressable memory implementation with random access mem Content addressable memory implementation with random access mem

1993-11-19

1995-09-12

Nguyen, Viet Q.

Static information storage and retrieval

Associative memories

Ferroelectric cell

36523002, 36518907, G11C 1500

Patent

active

054503515

ABSTRACT:
A content addressable memory (CAM) implementation using random access memory (RAM) and a method for operating the implementation are described, wherein the RAM is divided into smaller, individually addressable units, which are addressed by a subword of the applied keyword, and the outputs of which are bitwise ANDed. The result of the bitwise AND operation is used to activate the matching lines of the CAM implementation. The new implementation allows the use of conventional circuit design.

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patent: 5072422 (1991-12-01), Rachels
patent: 5107501 (1992-04-01), Zorian
"Bit Mask Generator," IBM TDB, vol. 30, No. 12, May 1988 pp. 320-323.
T. B. Pei et al. "VSLI Implementation of Routing Tables:Tries and Cams" IEEE Computer and Communication Societies, N.Y. 1991, 0515-0524, Proceedings of 10th Annual Joint Conference.
European Search Report, The Hague, Jul. 27, 1993, 2 pages.

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