Patent ID: 6476639
Filing Date: 2002-11-05
Classification: H03K

Abstract:
A semiconductor integrated circuit device capable of generating an output without being influenced by the other input, said semiconductor integrated circuit device comprising:a logic circuit designed to process a predetermined logical operation on the basis of an input signal; and an input capacitance equalizing circuit designed to equalize an input capacitance of said logic circuit, wherein said logic circuit comprises a first logic circuit for carrying out a predetermined logical operation on the basis of a first input signal, and a second logic circuit for carrying out a predetermined logical operation on the basis of at least a second input signal, and said first input signal is inputted to said input capacitance equalizing circuit; and wherein said first logic circuit has one or a plurality of the same circuit constructions which are operated by said first input signal, said second logic circuit has one or a plurality of the same circuit constructions to which one or plurality of second input signals and an output signal outputted from said input capacitance equalizing circuit are inputted, and said input capacitance equalizing circuit comprises a making input capacitance independence circuit for equalizing the input capacitance of said first input signal without depending on the state of said second input signals.