Semiconductor device

Abstract

A semiconductor device is provided which has a driving circuit operable to drive a circuit that has a delay, the semiconductor device including: an auxiliary driving circuit operable to accelerate drive of the driving circuit, which receives a drive signal of the driving circuit as an input signal.

1 . A semiconductor device comprising:
 a driving circuit operable to drive a circuit that has a delay;   
       an auxiliary driving circuit operable to accelerate the drive of the driving circuit the auxiliary driving circuit is configured to receive a drive signal of the driving circuit as an input signal and monitors signal transition of the circuit,
 wherein,
 the auxiliary driving circuit includes a logic circuit which receives the input signal, the logic circuit having logic with a threshold associated with a rising edge of the drive that is different from a threshold associated with a falling edge of the drive. 
 
 
     
     
         2 . The semiconductor device according to  claim 1 , wherein the threshold associated with the rising edge is lower than the threshold associated with the falling edge. 
     
     
         3 . The semiconductor device according to  claim 2 , wherein the threshold of drive at the rising edge is lower than a middle level of a low level and a high level and the threshold of drive at the falling edge is higher than the middle level of the low level and the high level.