Unclocked eFUSE circuit

Details Unclocked eFUSE circuit Unclocked eFUSE circuit

2008-03-18

2008-03-18

Elms, Richard T. (Department: 2824)

Static information storage and retrieval

Read/write circuit

Having fuse element

C365S189030, C327S525000

Reexamination Certificate

active

07345943

ABSTRACT:
An unclocked electrically programmable fuse (eFUSE) system includes at least two resistive voltage dividers, one voltage divider including an eFUSE, and a differential amplifier. An output node of at least one of the voltage dividers includes an eFUSE that changes an output voltage based on a state of the eFUSE, and the differential amplifier changes the output voltage into a digital output with no clocking capabilities.

REFERENCES:
patent: 6639848 (2003-10-01), Maejima
patent: 6747481 (2004-06-01), Pitts
patent: 7061304 (2006-06-01), Anand et al.
patent: 7095671 (2006-08-01), Krishnan et al.
patent: 7098721 (2006-08-01), Ouellette et al.

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