ST25TA64K-AB6G3 STMicroelectronics

ST25TA64K NFC Forum Type 4 Tag IC with 64-Kbit EEPROM Datasheet - production data Description The ST25TA64K device is an NFC tag IC embedding an EEPROM memory. It can be operated from a 13.56 MHz RFID reader or an NFC phone. The RF protocol is compatible with ISO/IEC 14443 Type A and NFC Forum Type 4 Tag. Wafer (SB12I) Features Contactless interface NFC Forum Type 4 Tag ISO/IEC 14443 Type A 106 Kbps data rate Internal tuning capacitance: 25 pF Memory 8-Kbyte (64-kbit) EEPROM Supports NDEF data structure Data retention: 200 years Endurance: 1 million erase-write cycles Reads up to 246 bytes in a single command Writes up to 246 bytes in a single command 7-byte unique identifier (UID) 128-bit password protection February 2017 DocID027764 Rev 4 1/47 This is information on a product in full production. www.st.com 1Contents ST25TA64K Contents 1 Functional description . 8 1.1 Functional modes 9 1.1.1 Tag mode . 9 2 Signal descriptions . 10 2.1 Antenna coil (AC0, AC1) . 10 3 ST25TA64K memory management 11 3.1 Memory structure 11 3.1.1 File identifier . 11 3.1.2 CC file layout . 11 3.1.3 NDEF file layout . 12 3.1.4 System file layout 12 3.2 Read and write access rights to the memory 13 3.2.1 State of the Read and Write access rights . 13 3.2.2 Changing the read access right to NDEF files 14 3.2.3 Changing the write access right to NDEF files . 15 3.3 Access right life time 15 3.4 NDEF file passwords 15 4 Communication mechanism . 16 4.1 Master and slave . 16 5 RF command sets 17 5.1 Structure of the command sets . 18 5.2 I-Block format 18 5.2.1 C-APDU: payload format of a command 19 5.2.2 R-APDU: payload format of a response 20 5.3 R-Block format . 20 5.4 S-Block format . 21 5.5 CRC of the RF frame 22 5.6 NFC Forum Type 4 Tag protocol . 22 5.6.1 Commands set 22 2/47 DocID027764 Rev 4