Internal voltage generation circuit and semiconductor apparatus using the same

A semiconductor apparatus comprising:

• a voltage detection unit configured to generate a voltage detection signal that indicates whether a voltage level of an internal voltage is a first target voltage level or a second target voltage level higher than the first target voltage level, according to control of a normal operation signal;
• an operation control signal generation unit configured to selectively activate an operation control signal in response to the normal operation signal and the voltage detection signal;
• a periodic pulse signal generation unit configured to generate a periodic pulse signal in response to the operation control signal and the normal operation signal;
• a charge pumping unit configured to generate the internal voltage by performing a charge pumping operation according to control of the periodic pulse signal;
• and
• an internal logic unit configured to perform an internal operation by using the internal voltage transferred through an internal voltage terminal as a driving voltage, in response to the operation control signal.

A semiconductor apparatus comprising:

• a voltage detection unit configured to detect a voltage level of an internal voltage and output the detection result as a voltage detection signal;
• an operation control signal generation unit configured to selectively activate an operation control signal in response to a normal operation signal and the voltage detection signal;
• a periodic pulse signal generation unit configured to generate a periodic pulse signal in response to the operation control signal and the normal operation signal;
• a charge pumping unit configured to generate the internal voltage by performing a charge pumping operation according to control of the periodic pulse signal;
• and
• an internal logic unit configured to perform an internal operation by using the internal voltage transferred through an internal voltage terminal as a driving voltage, in response to the operation control signal.