ST25DV Dynamic NFC/RFID Tag STMicroelectronics ST25DV Dynamic NFC/RFID Tag is a dual interface, fast transfer mode, energy harvesting device that has a configurable interrupt capability, RF management, and low power mode. The ST25DV embeds an EEPROM memory and a dedicated memory buffer for fast data transfer. The tag can be operated from an I2C interface or by a 13.56MHz RFID reader or an NFC phone. The I2C two-wire interface behaves as a slave in the I2C protocol. The contactless interface is compatible with ISO/IEC 15693 standard and NFC Forum type 5 tag.