FLIP-FLOP CIRCUIT WITH DELAY FUNCTION, LATCH CIRCUIT WITH DELAY FUNCTION, DESIGNING METHOD FOR SEQUENCE CIRCUIT, AUTOMATIC DESIGNING DEVICE FOR CLOCK SIGNAL WIRE OF SEMICONDUCTOR INTEGRATED CIRCUIT, AND CLOCK SIGNAL WIRE OF SEMICONDUCTOR INTEGRATED CIRCUIT

摘要

PROBLEM TO BE SOLVED: To make the sequence circuit operate with a short-cycle clock signal. SOLUTION: The flip-flop circuit with a delay function is constituted by using a flip-flop circuit 10 and a delay circuit 20. An external clock signal ECLK is inputted to the delay circuit 20 from outside and an internal clock signal ICLK which is a certain delay time T2 delayed behind ECLK is outputted to the flip-flop circuit 10. Consequently, the internal clock signal ICLK rises with the certain delay time T2 after the external clock signal ECLK rises, so the input of a data input signal DIS to the flip-flop circuit 10 can be delayed by the delay time T2. Consequently, even if the data input signal DIS arrives at the flip-flop circuit with the delay function with a delay of the delay time T2, the flip-flop circuit 10 can inputs the data input signal DIS correctly.