| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To average the accumulation value of the peak value of a feedthrough current generated in each circuit block, and to avoid noise having an inherent phase, in a semiconductor integrated circuit having a plurality of circuit blocks. <P>SOLUTION: In the semiconductor integrated circuit 1, a selection signal generation random number generation circuit 42 generates a selection signal S that changes randomly in a set range each time when an inverted signal U rises, a selector 43 switches input and output ends, where delay clock signals C<SB>1</SB>, C<SB>2</SB>, and C<SB>3</SB>are inputted according to details instructed by the selection signal S, and randomly supplies delay clock signal each having a different delay time for each circuit block. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
