| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an integrated circuit device which can reduce a noise level generated based on a clock signal without adding an excessive circuit. <P>SOLUTION: In the interior of a microcomputer 41, the power supply and a ground are commonly used in a clock signal output circuit 1 which generates and outputs a multiplication clock signal by a digital PLL operation with a ring oscillator 6 and an internal circuit 42 which operates with the supplied clock signal. Thus, wiring is performed so that the power is first supplied to the internal circuit 42 by power source wiring 48 and ground wiring 49 and then supplied to the clock signal output circuit 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
