Programmable logic devices with spare circuits for replacement o

Details Programmable logic devices with spare circuits for replacement o Programmable logic devices with spare circuits for replacement o

1995-04-04

1996-01-16

Westin, Edward P.

Electronic digital logic circuitry

Reliability

Redundant

326 38, 326 39, 326 41, H03K 19177

Patent

active

054851025

ABSTRACT:
A programmable, integrated circuit, logic array device has several regular logic groups and at least one spare logic group. If any of the regular logic groups is defective, the spare logic group is used to make up for the defective logic group. To accomplish this, programming and data input signals that would normally go to the defective logic group are redirected to another logic group. The data output signals of the other group are substituted for the data output signals of the logic group that would normally have received the programming and data input signals that were redirected to the other logic group.

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