ST25DV04KC-IE8C3

ST25DV04KC-IE8C3 is a dynamic NFC/RFID tag IC with fast transfer mode capability and optimized I2C offering 4Kbit of electrically erasable programmable memory (EEPROM). It offers two interfaces. The first one is an I²C serial link and can be operated from a DC power supply. The second one is an RF link activated when the device acts as a contactless memory powered by the received carrier electromagnetic wave. In I²C mode, this device's user memories contain up to 512bytes, 2048bytes, and 8192bytes, which could be split into 4 flexible and protectable areas. It offers a fast transfer mode between the RF and contact worlds, thanks to a 256-byte volatile buffer (also called mailbox). In addition, the GPO pin provides data informing the contact world about incoming events, like RF field detection, RF activity in progress, or mailbox message availability. An energy harvesting feature is also proposed when external conditions make it possible.

• I2C and GPO open drain, fast transfer mode and energy harvesting
• 28.5pF capacitance, single supply voltage range from 1.8V to 5.5V
• Two-wire I²C serial interface supports 1MHz protocol
• Configurable I²C address, based on ISO/IEC 15693, custom fast read access upto 53kbit/s
• I²C interface accesses bytes, RF interface accesses blocks of 4 bytes
• Data retention is 40 years, open drain or CMOS output
• RF command interpreter enabled/disabled from I²C host controller
• Energy harvesting, analogue output pin to power external components
• Operating ambient temperature range from - 40°C to 105°C
• UFDFPN8 package