Patent ID: 7317334

Claim:
A voltage translator circuit comprising: a logical circuit portion outputting an electric potential in the form of a logical signal through the logical output terminal thereof, said electric potential being supplied by the first power source line or the second power source line; the third power source line; the fourth power source line as set to be the electric potential equal to or higher than that of said second power source line; and a voltage output portion having the first through the fifth transistors, wherein said first transistor is a transistor of the first conductive type, of which the source is connected to said third power source line, the drain is connected with the voltage output terminal of said voltage output portion, and the gate is connected with said logical output terminal; said second transistor is a transistor of the second conductive type, of which the source is connected with said fourth power source line, and the drain is connected with said voltage output terminal; said third transistor is a transistor of the second conductive type, of which the source is connected with said fourth power source line, the drain is connected with the gate of said second transistor, and the gate is connected with said voltage output terminal; said fourth transistor is a transistor of the first conductive type, of which the source is connected with the gate of said second transistor, and the drain is connected with said logical output terminal; and said fifth transistor is a transistor of the second conductive type, of which the source is connected with said second power source line, the drain is connected with the gate of said fourth transistor, and the gate is connected with said logical output terminal.