A dynamic barrel shifter has a data input portion, a data shift portion, and a shifted data output portion including sense inverters which are set at threshold voltage higher than a half of the power source voltage. The sense inverters are provided for every transmission route for each binary code. The dynamic barrel shifter also has a pre-charge portion for pre-charging the data shift portion and the shifted data output portion prior to the input of data. The pre-charge portion includes a first power source voltage applying circuit for applying electric potential lower than the power source voltage to the data shift portion through first gate elements from the power source, and a second power source voltage applying circuit for applying electric potential equal to the power source voltage to the input side of the shifted data output portion through second gate elements.