The NTAG X DNA from NXP is an ISO/IEC 14443-4 Type 4 NFC tag that enables secure authentication of NFC-enabled mobile devices. It features 16 kB of memory, high-speed data transfer, and Secure Unique NFC (SUN) authentication to protect devices across healthcare, smart home, consumer electronics, and industrial markets.
Supporting device-only, device-to-device, and device-to-cloud authentication, the NTAG X DNA secures data transfer via NFC or I²C interfaces at speeds up to 848 kbps and 1 MHz, respectively. A direct MCU connection enables device diagnostics, while the tag’s memory allows access to stored authentication data—even without power. Sensitive information can also be erased in power-off conditions to protect user privacy.
Designed to combat counterfeits and support Digital Product Passport (DPP) compliance, the NTAG X DNA offers strong security with Common Criteria EAL 6+ certification and PKI-based asymmetric cryptography. It is backed by NXP’s EdgeLock 2GO service for UID and certificate delivery, as well as on-demand certificate generation.
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