Transistor logic tristate output with reduced power dissipation

Details Transistor logic tristate output with reduced power dissipation Transistor logic tristate output with reduced power dissipation

1979-01-24

1981-09-01

Zazworsky, John

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307456, H03K 19084, H03K 19088

Patent

active

042874335

ABSTRACT:
A transistor logic tristate output device with plural phase splitter transistor means coupled in parallel configuration jointly to control sinking of current by the pulldown element with only one of the plural phase splitter transistor means coupled to control sourcing of current by the pullup element. In a preferred embodiment dual phase splitter transistors define a relatively low resistance path from high potential for controlling the pulldown element and a relatively high resistance path from high potential through the enable gate restricting power consumption in the high impedance third state.

REFERENCES:
patent: 4194132 (1980-03-01), Mrazek
Military Specification Microcircuits Mil-M-38510/309A, (USAF), pp. 44-71, Jan. 4, 1978.
Low Power Schottky Data Book, "Circuit Characteristics", pp. 2-3 thru 2-7, Copyright, 1977, Fairchild Camera and Instrument Corp.

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