Patent ID: 8040165

Claim:
A semiconductor integrated circuit comprising: a differential driver that is disposed between a first power supply and a second power supply and drives differential input signals to generate differential output signals; and a control signal generation circuit that generates a first control signal for controlling a voltage level of each of the differential output signals, wherein when each of a pair of output signals forming the differential output signals is changed from a voltage level corresponding to the first power supply to a voltage level corresponding to the second power supply, an amount of change in the voltage level of the corresponding output signal is controlled based on the first power supply, and wherein the control signal generation circuit controls a drive current for controlling one of a rising edge and a falling edge of each of the pair of output signals to be set as a constant current, and controls a drive current for controlling the other of a rising edge and a falling edge of each of the pair of output signals to be set as a variable current.