High speed BI CMOS logic circuit and a semiconductor integrated

Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons

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307443, 307570, 36518901, H03K 1704

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active

052967557

ABSTRACT:
Herein disclosed is a logic circuit which has an input bipolar transistor for receiving an input signal at its base; variable impedance circuit having at least a first P-channel MOSFET connected between a first supply voltage and the collector of the input bipolar transistor; a second N-channel MOSFET connected between the emitter of the input bipolar transistor and a second supply voltage; an output bipolar transistor connected between the first supply voltage and the output terminal of the circuit for receiving the collector potential of the input bipolar transistor at its base; and a third, pull-down MOSFET connected between the output terminal and the second or third supply voltage.

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patent: 5023479 (1991-06-01), Jeffery et al.
patent: 5045726 (1991-09-01), Leung
patent: 5132566 (1992-07-01), Denda

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