Level shifter and method thereof

摘要

A level shifter and method thereof. The example level shifter may include a level shifting unit generating a plurality of internal voltages, shifting the voltage levels of a plurality of input signals and outputting an output signal based at least in part on the plurality of internal voltages and a mode control unit controlling the voltage levels of the plurality of internal voltages in response to a mode selection signal. The example method may include generating a plurality of internal voltages based on a plurality of input signals, controlling the voltage levels of the plurality of internal voltages based on a mode selection signal and outputting an output signal based at least in part on the plurality of internal voltages.