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STMicroelectronics Launches Cost-Effective NFC Type 2 Tag IC

New NFC tag provides enhanced privacy features and augmented NDEF.

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By: DAVID SAVASTANO

Contributing Editor, Coatings World and Ink World, Coatings World and Ink World Magazine

STMicroelectronics’ ST25TN512 and ST25TN01K NFC Forum Type 2 tag ICs deliver a new balance of cost and performance for high-volume use cases like consumer engagement, product information, and brand protection.

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. The embedded device memory includes up to 208 bytes (1664 bits) dedi-cated to user content.

Support for messages in NFC Data Exchange Format (NDEF) allows triggering native ac-tions 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.

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