A Low-Power 512-Bit EEPROM Design for UHF RFID Tag Chips

摘要

In this paper, a design for a low-power 512-bit synchronous EEPROM with flash cells for passive UHF RFID tag chip is presented. Applied are low-power schemes such as dual power supply voltage(VDD=1.5V and VDDP=2.5V), clocked inverter sensing, voltage-up converter, IO interface, and Dickson charge pump using schottky diode. An EEPROM is fabricated with the 0.25μm EEPROM process. Simulation results show that power dissipations are 8.34μW in the read cycle and 57.7μW in the write cycle, respectively. The layout size is 449.3μm × 480.67μn.