| 摘要 |
In a multi-supply-voltage semiconductor device including multiple blocks 31, 32, each of which has independent clock circuit 41, 42, and operating with variable power supply 101 , variable delay circuit 20 which changes the amount of delay in accordance with the voltage value of the variable power supply 101 is provided to a clock signal supplied to several blocks 32 from clock generator circuit 10 . This can reduce clock skew between the blocks even when the power supply voltage of variable power supply 101 is changed.
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