Latency control device and semiconductor device including the same

The present invention is a technology that enables to latency control device and by controlling, in particular latency relates to a semiconductor device including the same improve the test-of-screen performance. The present invention according to the clock, and select signal control, the latency for outputting the normal latency signal in synchronization with the clock, a selection signal for outputting for controlling the latency operation outputs the self-latency signal in synchronization with a clock, or of the self-latency signal latency unit of the self-adjusting to the output period in synchronization, and normal latency signal and the self-latency signal selecting one to include a selecting section which outputs a control signal latency.