STMicroelectronics launches cost-effective NFC Type 2 Tag IC

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▤ Summary

Also suitable for smart-city applications and access control, the ST25TN512/01K NFC tag ICs support multiple user-protection and privacy mechanisms including a 7-bit unique chip-identifier code, TruST25 digital signature, NFC Forum T2T permanent write locks at block level, and a configurable kill mode that permanently deactivates the tag. Certified to NFC Forum Type 2 specifications, the ST25TN512 and ST25TN01K leverage ISO 14443 standards and can be used with NFC-compatible mobiles or a dedicated short-range reader. Support for messages in NFC Data Exchange Format (NDEF) allows triggering native actions on a smartphone without needing a dedicated app, such as launching a web browser or starting Bluetooth pairing. Augmented NDEF (ANDEF) additionally enables reading dynamic information such as custom messages and unique tap codes without explicitly updating the EEPROM. The tags harvest energy from the 13.56MHz RF transmitter field and hence require only an antenna to complete the design.

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