ST25DV64K-IER6T3 RF/IF and RFID

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ST25DV64K-IER6T3 is a highly integrated single-wire contactless memory device developed by STMicroelectronics. It is primarily designed for RFID and RF access control, monitoring and identification applications. It is based on the I²C interface and NFC Forum Type 5 specification.

The ST25DV64K-IER6T3 is designed for applications which require secure data storage and RF communication. It is ideally suited for applications such as ID cards, access control, product tracking, anti-theft, electronic wallets, medical and healthcare, automotive electronics, and industrial automation.

Features

• Up to 128 kbytes EEPROM non-volatile memory
• Contactless write/read capability
• Support of I²C (2.0 – 400 kbits/second)
• Support of NFC Forum Type 5 Tag (ISO/IEC 15693 and ISO/IEC 18000-3)
• I²C addressing: 3 bits, up to 8 memories
• Resistance to external stress: voltage and temperature
• Optimized for low power consumption

Working Principle

The ST25DV64K-IER6T3 operates in two modes: standby and active. In standby mode, it remains inactive and requires no power. Once activated, the device initiates an I²C protocol to communicate with the master. Data is exchanged with the master over the I²C interface. The CPU accesses the memory for data acquisition and writes the data back to the memory.

In the active mode, the device uses communication protocols supported by the NFC Forum to exchange data with the external device. The Basic Rate protocol is used for communication between the IC and the card terminal. The High Speed protocol is used for high speed communication with ISO-compliant transponders.

The ST25DV64K-IER6T3 supports the I²C interface and NFC Forum Type 5 Tag protocol specified in ISO/IEC 15693 and 18000-3. It contains logic that allows for communication with various types of readers and transponders. The protocol also supports commands for locking the registers, memory cells, and write operations. The device supports both write-once and read-only memory operations.

Conclusion

The ST25DV64K-IER6T3 is a highly integrated single-wire contactless memory device specifically designed for RFID and RF access control, monitoring and identification applications. It is based on the I²C interface and NFC Forum Type 5 protocol and supports both write-once and read-only memory operations. The ST25DV64K-IER6T3 is well-suited for applications that require secure data storage and RF communication, and is ideal for applications such as ID cards, access control, product tracking, anti-theft, electronic wallets, medical and healthcare, automotive electronics, and industrial automation.

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