Output pad system and pad driving circuit thereof

Details Output pad system and pad driving circuit thereof Output pad system and pad driving circuit thereof

2011-06-07

2011-06-07

Luu, An T (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Current driver

C327S112000, C327S170000, C327S263000, C326S033000, C326S083000

Reexamination Certificate

active

07956655

ABSTRACT:
A pad driving circuit includes an output control circuit, a voltage pump circuit, a first buffer series, and a second buffer series. The output control circuit controls whether a pad circuit can pass an input signal, in which the output control circuit enables the pad circuit to output the input signal when an enable signal is asserted. The voltage pump circuit generates a negative supply voltage having voltage less than a zero volt. The first buffer series, electrically connected between the output control circuit and the pad circuit, drives the pad circuit with a positive supply voltage and the negative supply voltage from the voltage pump circuit. The second buffer series drives the pad circuit with a ground voltage and the positive supply voltage.

REFERENCES:
patent: 4612466 (1986-09-01), Stewart
patent: 6184703 (2001-02-01), Vest et al.
patent: 6489807 (2002-12-01), Genna et al.

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