PURPOSE: To remove the noise of a counting circuit, which affects a video signal by a low pass filter at a later stage.

CONSTITUTION: A semiconductor device incorporates the counting circuit used as a frequency divider in a horizontal direction used for a video signal processing or the like. The counting circuit is constituted of logical gates 107-117 whose output loads are equal and flip flops 101-106. The number of output changes of the logical gates and the flip flops is made to be equal. The frequency of the output change of the counting circuit is made to be more than the frequency of a video band. The frequency of the noise which affects the video signal is more than the frequency of the video band, and the noise can be removed by the low pass filter at the later stage.