Low-power output driver buffer circuit

Details Low-power output driver buffer circuit Low-power output driver buffer circuit

2008-08-07

2009-10-20

Tran, Anh Q (Department: 2819)

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

Output switching noise reduction

C326S027000, C326S030000

Reexamination Certificate

active

07605602

ABSTRACT:
In one embodiment, an output driver buffer circuit for a logic device includes an output driver transistor adapted to adjust an output voltage of an output pad; a capacitor adapted to be connected to the transistor gate and further adapted when charged and connected to the gate to turn the transistor on; and a reference voltage source adapted to be connected to the transistor gate and further adapted when connected to the gate to maintain the transistor on. The reference voltage source is further adapted to be connected to the transistor gate after the capacitor has turned the transistor on and independent of the level of the output voltage of the output pad.

REFERENCES:
patent: 5017807 (1991-05-01), Kriz
patent: 5317206 (1994-05-01), Hanibuchi et al.
patent: 5633600 (1997-05-01), Ohnishi
patent: 7129740 (2006-10-01), Pentakota
Description of Lattice Products On Sale Before Oct. 23, 2007.

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