Patent ID: 7664969

Claim:
A semiconductor device comprising: at least one of a first power supply terminal supplied with a first power supply voltage from outside the semiconductor device; at least one of a second power supply terminal supplied with a second power supply voltage from outside the semiconductor device; at least one of a third power supply terminal supplied with a third power supply voltage from outside the semiconductor device, the third power supply voltage having a voltage value that is different than voltage values of said first and second power supply voltages; at least one of a ground terminal supplied with a ground voltage; a first circuit block electrically connected to said at least one of a first power supply terminal, the first circuit block operating based on said first power supply voltage; a second circuit block electrically connected to said at least one of a second power supply terminal, the second circuit block operating based on said second power supply voltage; and a third circuit block electrically connected to said at least one of a third power supply terminal, the third circuit block operating based on said third power supply voltage, wherein the voltage values of said first, second and third power supply voltages are higher than a voltage value of the ground voltage, and wherein said first circuit block is a USB controller and said second block is an I/O block.