Semiconductor device and ID generator configured as semiconductor device

摘要

A semiconductor device that is difficult to reverse engineer. The semiconductor device includes a reconfigurable circuit having a circuit configuration that is switchable in accordance with circuit operation setting data. A non-volatile memory stores the circuit operation setting data. A register receives the circuit operation setting data from the non-volatile memory and provides the circuit operation setting data to the reconfigurable circuit when the semiconductor device is activated. Since the circuit configuration of the reconfigurable circuit is determined by the circuit operation setting data, the operation of the reconfigurable circuit cannot be analyzed when a peeling analysis is conducted on the semiconductor device.