Low power consuming logic circuit

Details Low power consuming logic circuit Low power consuming logic circuit

1996-12-11

1999-12-21

Tokar, Michael

Electronic digital logic circuitry

Function of and, or, nand, nor, or not

Field-effect transistor

326113, 326121, 326 83, 326 86, 326 95, 326 98, 326 28, H03K 19094, H03K 19096

Patent

active

060054182

ABSTRACT:
Disclosed is a low power consuming logic circuit to restrain a short circuit current which flows within an inverter circuit of an inverter having a clock input connected behind a pass-transistor logic circuit. In the logic circuit, the inverter having a clock input is provided on the output of a pass-transistor logic circuit. The inverter having a clock input includes the inverter circuit and write control means. A data holding circuit is connected to the output of the write control means. In the logic circuit, a clock is input to the inverter having a clock input after the output of the pass-transistor logic circuit is stabilized. Thus, the short circuit current which flows in the inverter circuit is restrained. In addition to the logic circuit, a positive feedback circuit for supplying an inverted signal from the inverter circuit to the output of the inverter having a clock input can be provided. In the logic circuit, the positive feedback circuit functions to further increase the voltage of the output signal of the pass-transistor logic circuit if it is higher than the input threshold of the inverter, and to further reduce the same voltage if it is lower than the input threshold of the inverter. Consequently, the short circuit current flows in the inverter having a clock input in a very short time.

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patent: 5606270 (1997-02-01), D'Souza et al.
patent: 5859548 (1999-01-01), Kong

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