Semiconductor integrated circuit, radio frequency identification transponder, and non-contact IC card

摘要

A rectifier circuit converts an alternating current into a direct-current voltage and outputs it as a power supply voltage. A ferroelectric holding circuit has a volatile holding circuit and a plurality of ferroelectric capacitors. Data held in the ferroelectric holding circuit has a read margin greater than that of data held in ferroelectric memory cells in a memory array. The ferroelectric holding circuit thus operates with reliability even if power that the semiconductor integrated circuit receives is low. Consequently, since the ferroelectric holding circuit is formed on the semiconductor integrated circuit to be implemented on an RFID transponder or a non-contact IC card, the communication range between the RFID transponder or non-contact IC card and a reader/writer can be extended.