Semiconductor device having input buffer with reduced bias volta

Details Semiconductor device having input buffer with reduced bias volta Semiconductor device having input buffer with reduced bias volta

1997-10-21

1999-10-26

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

327333, 327437, 327544, 326 68, 326 81, H03K 190185

Patent

active

059735490

ABSTRACT:
An input buffer in a semiconductor device reduces power consumption by decreasing variation of an operation bias voltage. The semiconductor device has an input buffer driving circuit with an inversion circuit at its output, both of which circuits drive the input buffer to cause it to output a power voltage V.sub.dd or a ground voltage V.sub.ss. The driving circuit outputs a "high ground" voltage when an input voltage V.sub.in is 1.685 volts, and a "low power" voltage when V.sub.in is 1.285 volts. The device also has a circuit that generates reference potentials having a "low power" voltage and "high ground" voltage needed by the driving circuit's power voltage terminal and ground voltage terminal.

REFERENCES:
patent: 4677321 (1987-06-01), Bacrania
patent: 5132555 (1992-07-01), Takahashi
patent: 5283762 (1994-02-01), Fujishima
patent: 5451896 (1995-09-01), Mori
patent: 5517148 (1996-05-01), Yin
patent: 5805005 (1998-09-01), Raisinghani et al.
patent: 5808480 (1998-09-01), Morris

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