Patent ID: 6388474
Filing Date: 2002-05-14
Classification: G06F,H03K

Abstract:
A semiconductor integrated circuit comprising:a logic circuit which includes first to third pass-transistor circuits, wherein each of said first to third pass-transistor circuits has a first input node, a second input node, an output node, a first field effect transistor having its source-drain path coupled to the first input node and the output node, and a second field effect transistor having its source-drain path coupled to the second input node and the output node, wherein each of the first field effect transistor and second field effect transistor of said third pass-transistor circuit has its source-drain path coupled to the first input node of said second pass-transistor circuit, wherein the first input node and the second input node of said first pass-transistor circuit are respectively supplied with an input signal and another input signal, that are logically independent from each other, wherein the first and second field effect transistors of said first pass-transistor circuit have their gates responding to first complementary input signals and become conductive in a complementary fashion, wherein the first and second field effect transistors of said second pass-transistor circuit have their gates responding to second complementary input signals and become conductive in a complementary fashion, said second complementary input signals comprising a signal in phase with the signal provided on said output node of said first pass-transistor circuit and a signal complementary thereto, wherein the first and second field effect transistors of said third pass-transistor circuit have their gates responding to third complementary input signals and become conductive in a complementary fashion, and wherein each of the first field effect transistor and the second field effect transistor of said first pass-transistor circuit has its source-drain path coupled to an amplifier circuit.