Large fan-in, dynamic, bicmos logic gate

Details Large fan-in, dynamic, bicmos logic gate Large fan-in, dynamic, bicmos logic gate

1993-09-30

1995-03-21

Westin, Edward P.

Electronic digital logic circuitry

Function of and, or, nand, nor, or not

Bipolar and fet

326 27, H03K 1902, H03K 1716

Patent

active

053999185

ABSTRACT:
A highly reliable, large fan-in, high speed, BiCMOS circuit. The amount of MOS transistor parasitic capacitance appearing on the output line of the circuit is reduced by adding only emitter capacitance of bipolar transistors to the output line for each input to the basic logic circuit. Circuitry is provided to raise the base voltage of a reverse biased bipolar transistors to reduce or eliminate the reverse bias.

REFERENCES:
patent: 4866304 (1989-09-01), Yu
patent: 4890018 (1989-12-01), Fukushi
patent: 5300829 (1994-04-01), Lev

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