The semiconductor integrated circuit and a test apparatus

Circuit block 10 operates by receiving a clock CLK from the outside. Load balancing circuit 40 is connected to the circuit block 10 to a common power supply terminal 102 consumes predetermined power. Clock detection unit 20 detects the input of the clock CLK from the outside. When the input stops the clock is detected by the clock detection unit 20, the load balance circuit 40 active.