Pass gate circuit capable of operating stably at predetermined interval that a level of input signal is changed and self-refresh circuit having the pass gate circuit and control method of the pass gate circuit

摘要

Of the self-refresh circuit and the pass-gate circuit having a pass gate circuit to stably operate in the transition period of the input signal and this control method is started. Pass gate circuit according to the invention is characterized in that it includes a pass-gate section and the pass-gate control. Pass gate parts in response to the switching control signal, and delay time for setting the input signal, and outputs the delayed input signal as an output signal. Pass gate control unit judges whether or not the transition of the input signal and outputs the switching control signal, and in response to the internal control signal, the disable to the enable or di switching control signal according to the determination result. Control method for a self-refresh circuit and the pass-gate circuit comprises a gate circuit to pass and this, according to the invention has the advantage that can be operated stably based on the transition period of the input signal.