Multipath antifuse circuit

Details Multipath antifuse circuit Multipath antifuse circuit

1997-06-04

1999-07-13

Canney, Vincent P.

Excavating

G06F 1100

Patent

active

059236728

ABSTRACT:
An address detection circuit includes for each bit to be detected, a plurality of antifuse legs connected in parallel. Each of the antifuse legs includes a separate isolation transistor, so that each of the antifuse legs can be separately disabled. For blowing, only one of the antifuse legs is enabled at a time. During conventional operation, all of the antifuse legs are enabled so that the overall resistance of the antifuse legs equals the parallel combination of the resistances of the blown antifuses. Because the parallel combination of the blown antifuses is always less than or equal to the lower of the resistances of the antifuses, only one of the antifuses need be blown properly for the parallel combination to operate properly.

REFERENCES:
patent: 5255227 (1993-10-01), Haeffele

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