Patent ID: 9672157
Date: 2017-06-06
CPC Classifications: G06F,G11C

Claim:
1. A semiconductor device comprising: a command buffer configured to buffer a command signal and an active masking signal and output a reset signal and an active signal; an active controller configured to count pulses of the active signal, activate a flag signal after lapse of a specific time, and output the activated flag signal; an activation controller configured to selectively provide an activation signal in response to an inversion signal of the reset signal and the active signal; a latch unit configured to latch an output signal of the activation controller for a predetermined time, and output a start signal; a reset controller configured to receive the reset signal and a termination signal and output the inversion signal of the reset signal; a pulse generator configured to delay the start signal for a predetermined time, and activate the termination signal when the start signal is deactivated; and a masking signal generator configured to receive the start signal and the flag signal and generate the active masking signal.