DRIVE RECEPTION SYSTEM OF WIRING PATH

摘要

PROBLEM TO BE SOLVED: To obtain a high speed at the reception end of a line where a signal is delayed as to the drive reception system of the wiring path of a semiconductor integrated circuit. SOLUTION: A drive end side is equipped with a circuit 1 which delays an input signal and outputs an inverted signal and a circuit 2 which drives the drive end with the inverted level of the input signal in response to the level variation of the input signal in a delay period and holds the drive end at high impedance for a specific period from after the lapse of a delay time to the start of a next delay period, and a reception end side is equipped with a circuit 3 which holds a reception end level at a 1st level in a period of high impedance and induces the reception end level variation into the opposite direction according to the level variation at the drive end and a circuit 4 which outputs a 2nd low level between the 1st level and a source voltage according to the level variation at the reception end that the circuit 3 operates and outputs a 3rd high level between the 1st level and the ground potential.