High voltage reference and measurement circuit for verifying a p

Details High voltage reference and measurement circuit for verifying a p High voltage reference and measurement circuit for verifying a p

1996-04-01

1998-01-20

Nguyen, Hoa T.

Excavating

371 214, 324 7611, G01R 3128

Patent

active

057107785

ABSTRACT:
The present invention provides a circuit for supplying a verifying reference and measurement voltage for use in verifying the programming of a programmable cell. The present invention provides the verifying reference and measurement voltage through internal circuitry on the cell and eliminate any requirement for an externally provided reference voltage. The verifying voltage is provided by modifying the programming voltage. The programming voltage is stepped down or stepped up through the use of internal circuitry to provide the reference and measurement voltage.

REFERENCES:
patent: 4503538 (1985-03-01), Fritz
patent: 5321699 (1994-06-01), Endoh et al.
patent: 5463586 (1995-10-01), Chao et al.
patent: 5495442 (1996-02-01), Carnea et al.
patent: 5539690 (1996-07-01), Talreja et al.
patent: 5568419 (1996-10-01), Atsumi et al.

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