ST25TA512

ST25TA512 NFC Forum Type 4 Tag IC with 512 bits EEPROM Wafer (SB12I) Features Contactless interface NFC Forum Type 4 Tag ISO/IEC 14443 Type A 106 Kbps data rate Internal tuning capacitance: 50 pF Memory 64-byte (512 bits) EEPROM Support of NDEF data structure Data retention: 200 years Endurance: 1 million erase-write cycles Read up to 64 bytes in a single command Write up to 54 bytes in a single command Chaining capability 7 bytes unique identifier (UID) 128 bits passwords protection 20 bits event counter with anti-tearing Datasheet - production data Description The ST25TA512 device is a NFC tag IC. It embeds an EEPROM memory. It can be operated from a 13.56 MHz RFID reader or an NFC phone. The ST25TA512 is an NFC Forum Type 4 Tag; it communicates using the ISO/IEC 14443 Type A protocol. April 2015 This is information on a product in full production. DocID027776 Rev 1 1/50 www.st.com 1 Contents Contents ST25TA512 1 Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 1.1 Functional mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 1.1.1 Tag mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2 Signal descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2.1 Antenna coil (AC0, AC1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...