High speed, low component count, CML exclusive NOR gate

Details High speed, low component count, CML exclusive NOR gate High speed, low component count, CML exclusive NOR gate

1978-11-06

1981-07-28

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307472, 328 93, H03K 1921, H03K 19082, H03K 1920

Patent

active

042812585

ABSTRACT:
A high speed, low component count, exclusive NOR gate in one embodiment comprising two input transistors whose emitters are connected to the bases of a pair of cross-coupled transistors with the collectors of the latter being connected in common and forming the output of the gate so that the current flow through the emitter cross-coupled transistors is controlled by the base voltages of the two input transistors such that an exclusive NOR gate arrangement is provided. In another embodiment, a pair of Schottky diodes are disposed between the emitters of the input transistors and the cross-coupled emitter transistors to bias the bases of the latter and to change the input signal levels required.

REFERENCES:
patent: 3003071 (1961-10-01), Henle

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