Semiconductor device for constantly maintaining data access time

摘要

The semiconductor device may include a calibration circuit, a control unit, and a delay unit. The calibration circuit may be configured to output an output signal. The control unit may be configured to generate and output the control signal in response to the output signal of the calibration circuit. The control unit may generate the control signal by using a correlation between a signal transmission speed of the semiconductor device and the output signal of the calibration circuit. The delay unit may be configured to delay a clock signal in response to the control signal and output the delayed clock signal to the output driver.