Tri-state output circuit

Details Tri-state output circuit Tri-state output circuit

1988-03-31

1989-06-13

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307446, 307448, 307451, 307570, H03K 19017, H03K 1716, H03K 19094, H03K 19092

Patent

active

048395404

ABSTRACT:
A tri-state output circuit comprising an input section having complementary field effect transistors which constitute NOR gate and investor circuits, a control section having first and second current control circuits, and an output section having bipolar transistors wherein an input signal and a tri-state signal are logically processed in the input section and its result applied to the control section. Then, the switching operations of the output section and a high impedance condition of the output terminal of the tri-state output circuit are controlled by the control section consisting of a plurality of complementary FETs, thereby achieving a low power consumption, a high load driving capability, and a high speed operation.

REFERENCES:
patent: 3515901 (1970-06-01), White
patent: 4280065 (1981-07-01), Minato et al.
patent: 4678943 (1987-07-01), Uragami et al.
patent: 4725982 (1988-02-01), Hara et al.

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