Patent ID: 8400376

Claim:
A voltage selection circuit for outputting a potential selected from a plurality of input potentials, the voltage selection circuit capable of selectively outputting a first high-level potential being a highest potential, a second high-level potential, or a third high-level potential being a lowest potential from an output terminal thereof, the voltage selection circuit comprising: a first switching circuit that supplies the first high-level potential to the output terminal; a second switching circuit that supplies the second high-level potential to the output terminal; and a third switching circuit that supplies the third high-level potential to the output terminal, wherein the first switching circuit includes a high-voltage transistor and a first level shifter connected to a first gate terminal of the high-voltage transistor, wherein the second switching circuit includes a first low-voltage transistor, a second level shifter connected to a second gate terminal of the first low-voltage transistor, and a first diode disposed between the first low-voltage transistor and the output terminal, and wherein the third switching circuit includes a second low-voltage transistor and a second diode disposed between the second low-voltage transistor and the output terminal.