POWER SUPPLY VOLTAGE DETERMINATION CIRCUIT

PROBLEM TO BE SOLVED: To provide a power supply voltage determination circuit with which the current consumption is suppressed.SOLUTION: A power supply voltage determination circuit 50 is provided between a high power source VDD and a reference power source VSS and has a first partial pressure circuit 51 in which a capacity element Cfe51 with voltage dependency that the capacity changes according to voltage applied and a capacity element Cdp51 without voltage dependency are connected in serial manner, a second partial pressure circuit 52 which is connected to the first partial pressure circuit 51 in parallel manner, and a comparator 53 for making comparison of the partial pressure P51 between the capacity elements of the first partial pressure circuit 51 with the partial pressure P52 of the second partial pressure circuit 52.