Internal voltage generation circuit for adjusting internal voltage signal based on received bulk voltage signal, an upper limit reference voltage signal, and a lower limit reference voltage signal
An internal voltage generation circuit includes a bulk voltage generator and an internal voltage driver. The A bulk voltage generator is configured to output any one of a power supply voltage signal and a core voltage signal as a first bulk voltage signal and any one of a ground voltage signal and a low voltage signal as a second bulk voltage signal. An internal voltage driver receives the first and second bulk voltage signals to pull down an internal voltage signal when a level of the internal voltage signal is higher than a level of an upper limit reference voltage signal and to pull up the internal voltage signal when a level of the internal voltage signal is lower than a level of a lower limit reference voltage signal.
