Semiconductor device

摘要

Circuits included in a semiconductor device such as an RFID are categorized depending on whether a given stable power source potential is necessary. A power source potential generated from a wireless signal received by an antenna (101) with the use of the antenna (101) and a rectifier circuit (102) is supplied to a circuit (104) which needs a given stable power source potential through a regulator (103). On the other hand, a power source potential generated by the rectifier circuit (102) is supplied to a circuit (106) other than the circuit (104) which needs the arbitrary power source potential. Thus, a semiconductor device including a regulator circuit can be provided designed with a smaller layout, and the device generates a given stable power source potential.