Low power, variable logic threshold voltage, logic gates

Details Low power, variable logic threshold voltage, logic gates Low power, variable logic threshold voltage, logic gates

1996-11-07

1998-12-08

Tokar, Michael J.

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

Signal level or switching threshold stabilization

326121, 326124, H03K 19003, H03K 19094, H03K 1920, H03K 19082

Patent

active

058475761

ABSTRACT:
A logic gate arrangement having a master gate or section for controlling the logic threshold voltage of slave gates responsive to the master. Both the master and slave gates have two opposite conductivity type transistors disposed in combination with a logic function circuit. The transistors have a common gate connection to a control input. Varying the voltage on the control input varies the logic threshold voltage of the gate. The logic function in the master gate is typically an inverter, with input and output connected together and driving the control inputs of the slave gates. The logic function of the slave gates may be a variety of different logic functions. The logic threshold voltage of the slave gates is substantially the same as a voltage applied to the control input of the master gate.

REFERENCES:
patent: 3914702 (1975-10-01), Gehweiler
patent: 4672243 (1987-06-01), Kirsch
patent: 5144167 (1992-09-01), McClintock
Horenstein, Microelectronic Circuits & Devices, Prentice-Hall Inc., pp. 753-755, 1990.

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