SEMICONDUCTOR DEVICE

A semiconductor device includes a first power node configured to supply a first power supply voltage, a pull-up circuit electrically connected between the first power node and an output node that is configured to output a signal, and a controller configured to output a pull-up control code to the pull-up circuit. The pull-up circuit includes a plurality of unit circuits electrically connected to each other in parallel between the first power node and the output node, and the plurality of unit circuits include a first unit circuit and a second unit circuit. The number of current paths provided by the first unit circuit between the first power node and the output node is different from the number of current paths provided by the second unit circuit between the first power node and the output node.