| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a semiconductor integrated circuit wherein useless power consumption is reduced and clock skew is restrained. SOLUTION: This semiconductor integrated circuit has a clock supply path 20, which has a tree structure and distributes clocks CK to a plurality of flip- flops 11-13. A clock control cell CC, which supplies clocks to the respective branch points according to a control signal, is interposed in one or two or more branch points in the clock supply path 20 of the tree structure. To each of the flip-flops 11-13, a control circuit 30 supplies control signals S1, S2S to the clock control cell CC such that the clock CK is supplied to the flip-flop, only when the flip-flop needs the clock CK.</p> |
