US Patent 7847594 Data output circuit of a semiconductor integrated circuit

A data output circuit of a semiconductor integrated circuit includes a plurality of drivers configured to drive data output terminals to a logic level corresponding to levels of input data in response to driving control signals, and a control section configured to activate and output driving control signals that supplied to a first group of the plurality of drivers, and to activate or inactivate and output driving control signals that supplied to a second group of the plurality of drivers, depending upon a level of a supply voltage.