Semiconductor apparatus and reduced current and power consumption

The semiconductor apparatus comprising:

• a control signal generation unit configured to output a first control signal and a second control signal in response to a power-down mode signal;
• and
• a CML circuit unit configured to generate first and second output signals which swing in a current mode logic (CML) area, as differential output signals, in response to the second control signal,
• wherein the second control signal determines an amount of current to be sunken through the CML circuit unit so that an amount of current to be sunken through the CML circuit unit in the power-down mode differs from an amount of current to be sunken through the CML circuit unit in a normal mode,
• wherein the CML circuit unit comprises:
• a swing width control section configured to be electrically coupled between a terminal of a power supply voltage and a first output node to which the first output signal is applied, and between the terminal of the power supply voltage and a second output node to which the second output signal is applied.