Structure to recover a portion of a partially functional embedde

Details Structure to recover a portion of a partially functional embedde Structure to recover a portion of a partially functional embedde

1993-04-22

1995-11-28

Nelms, David C.

Static information storage and retrieval

Read/write circuit

Having fuse element

36523003, 365200, G11C 1300

Patent

active

054714311

ABSTRACT:
According to the present invention, one or more addresses are forced to a logic state to define a smaller, fully functional portion of embedded memory. A first preferred embodiment has a first fuse circuit and a second fuse circuit which control the conduction and the output signal of a transmission gate which passes through an address signal. The output signal of both the first and the second fuse circuits are input signals to logic circuitry which produces a first input signal and a second input signal to the transmission gate. When the first fuse is blown, the address signal is forced to a first logic state and when the second fuse is blown, the address signal is forced to a second logic state. When neither the first fuse nor the second fuse is blown, the address signal is simply passed through the transmission gate. A second preferred embodiment of the present invention has a first fuse circuit, a second fuse circuit, and an inverting stage through which an address signal passes. When the first fuse is blown, the address signal is forced to a first logic state and when the second fuse is blown, the address signal is forced to a second logic state. When neither the first fuse nor the second fuse is blown, the address signal is inverted.

REFERENCES:
patent: 4667288 (1987-05-01), Keeley et al.
patent: 4975881 (1990-12-01), Kagami
patent: 5021944 (1991-06-01), Sasaki et al.
patent: 5070502 (1991-12-01), Supnik
patent: 5146429 (1992-09-01), Kawai et al.
patent: 5227999 (1993-07-01), Ihara et al.
patent: 5251174 (1993-10-01), Hwang

Affiliated with

Also associated with

Rating

Structure to recover a portion of a partially functional embedde does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Structure to recover a portion of a partially functional embedde, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Structure to recover a portion of a partially functional embedde will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2018325