The SRI512 is a 13.56 MHz short-range contactless memory chip with 512-bit EEPROM and anticollision functions produced by ST. The chip complies with ISO 14443-2 Type B air interface standard and ISO 14443-3 Type B frame format standard. It operates at a frequency of 13.56 MHz with a subcarrier frequency of 847 kHz and a data transfer rate of 106 Kbit/second. The SRI512 features an 8-bit Chip_ID-based anticollision system, 2 countdown binary counters, a 64-bit unique identifier, 512-bit EEPROM and write protection feature. The chip also has an internal tuning capacitor, 1 million erase/write cycles, 40-year data retention, self-timed programming cycle and 5 ms typical programming time.
The SRI512 is a contactless memory chip powered by an externally transmitted radio wave at 13.56 MHz. It features a 512-bit user EEPROM organized into 16 blocks of 32 bits and includes an 8-bit Chip_ID based anticollision system. The device supports data transfer rates of 106 Kbit/second using ASK modulation for reception and BPSK coding for emission.
| Carrier frequency | 13.56 MHz |
|---|---|
| Subcarrier frequency | 847 kHz |
| Data transfer rate | 106 Kbit/second |
| EEPROM capacity | 512-bit |
| Unique Identifier | 64-bit |
| Erase/write cycles | 1 million |
| Data retention | 40-year |
| Programming time | 5 ms typical |
The data transfer rate between the SRI512 and the reader is 106 Kbit/s in both reception and emission modes.
Yes, it is compliant with ISO 14443-2 Type B air interface and ISO 14443-3 Type B frame format.
The EEPROM supports 1 million erase/write cycles.