Redundancy CAM using word line from memory

Details Redundancy CAM using word line from memory Redundancy CAM using word line from memory

1978-03-10

1991-09-03

Popek, Joseph A.

Static information storage and retrieval

Read/write circuit

Bad bit

365 49, 365185, G11C 1504, G11C 1134, G11C 700

Patent

active

050460463

ABSTRACT:
A redundancy programming circuit employing a two EPROM cell CAM for storing programmed states of redundant elements. The CAMs are disposed aside a memory array and word lines of the array are extended to the CAMs for programming the CAMs. Two word lines are coupled to each EPROM cell so that programming can still be achieved in the event one of the lines is defective.

REFERENCES:
patent: 4250570 (1981-02-01), Tsang et al.

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