An active cycle control circuit includes a refresh active control signal generation unit that generates a refresh active control signal at the same cycle as a refresh request signal at a timing earlier than the refresh request signal, a refresh standby signal output unit that outputs a refresh standby signal according to a refresh active signal and the refresh request signal, and an active control unit that outputs a row active signal for performing a read cycle according to a read command and outputs the refresh active signal according to the refresh active control signal and the refresh standby signal within the read cycle.