ST25TB02K

ST25TB02K Datasheet 13.56 MHz short-range contactless memory chip with 2048-bit EEPROM and anticollision functions -Unsawn wafer -Bumped and sawn wafer Product status link ST25TB02K Features ISO 14443-2 Type B air interface compliant ISO 14443-3 Type B frame format compliant 13.56 MHz carrier frequency 847 kHz subcarrier frequency 106 Kbit/second data transfer 8 bit Chip_ID based anticollision system 2 count-down binary counters with automated anti-tearing protection 64-bit Unique Identifier 2048-bit EEPROM with write protect feature Read_block and Write_block (32 bits) Internal tuning capacitor: 68 pF 1 million erase/write cycles 40-year data retention Self-timed programming cycle 5 ms typical programming time DS11469 - Rev 7 - February 2023 For further information contact your local STMicroelectronics sales office. www.st.com ST25TB02K Description 1 Description The ST25TB02K is a contactless memory, powered by an externally transmitted radio wave. It contains a 2048-bit user EEPROM. The memory is organized as 64 blocks of 32 bits. The ST25TB02K is accessed via the 13.56 MHz carrier. Incoming data are demodulated and decoded from the received amplitude shift keying (ASK) modulation signal and outgoing data are generated by load variation using bit phase shift keying (BPSK) coding of a 847 kHz sub-carrier. The received ASK wave is 10% modulated. The data transfer rate between the ST25TB02K and the reader is 106 kbit/s in both reception an...