Fuse refresh circuit

Details Fuse refresh circuit Fuse refresh circuit

1997-08-01

1999-05-18

Nelms, David

Static information storage and retrieval

Read/write circuit

Data refresh

3652257, 365200, 365 96, 327525, G11C7/00

Patent

active

059056878

ABSTRACT:
The fuse refresh circuit for semiconductor memories has a set circuit for setting a fuse latch circuit. The fuse latch circuit is set by the set circuit in at least one refresh cycle after a voltage supply has been switched on. During the refresh cycle of the fuse latch circuit, the latter is driven with pulses in such a way that the state of the fuse latch circuit is evaluated and only an incorrectly set fuse latch circuit is set to be correct.

REFERENCES:
patent: 4532607 (1985-07-01), Uchida
patent: 4837520 (1989-06-01), Golke et al.
patent: 5319592 (1994-06-01), Nguyen
patent: 5566107 (1996-10-01), Gilliam
patent: 5619469 (1997-04-01), Joo
patent: 5680360 (1997-10-01), Pilling et al.

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