ST25TB512-AC - STMicroelectronics

ST25TB512-AC 13.56 MHz short-range contactless memory

1 Description The ST25TB512-AC is a contactless memory, powered by an externally transmitted radio wave. It contains a 512-bit user EEPROM. The memory is organized as 16 blocks of 32 bits. The ST25TB512-AC is accessed via the 13.56 MHz carrier. Incoming data are demodulated and decoded from the received amplitude shift keying (ASK) modulation signal and o.

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
• 512-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 Product status link ST25TB512-AC DS1149.