Potential use cases corresponding to the supplied attributes include:
The larger memory options relative to earlier NTAG DNA products potentially enable extended NDEF messages, additional authentication data, or supplementary application-specific information storage.
","buying_guide":"When sourcing the NTAG 24x DNA, confirm specifics with your NXP representative or authorized distribution channel:
The NXP NTAG 24x DNA operates as an NFC Forum Type 2 tag at 13.56 MHz, compliant with ISO/IEC 14443 Type A. It uses 100% ASK modulation with Miller encoding for reader-to-tag communication and On-Off Keying (OOK) with Manchester encoding for tag-to-reader responses at the standard 106 kbit/s data rate.
The chip implements the NTAG anti-collision and selection sequence per ISO/IEC 14443-3, using a 7-byte UID with support for cascade levels. Memory is organized in pages of 4 bytes each, with the total memory size varying by specific variant within the 24x DNA family (the family designation indicates multiple memory configurations).
A key architectural feature is the integrated Sun Message Authentication, which provides chip-authenticated messages without requiring an application-specific key infrastructure. This operates alongside standard Type 2 tag memory operations, enabling cryptographic verification of tag origin through challenge-response mechanisms.
","programming_notes":"As an NFC Forum Type 2 tag, the NTAG 24x DNA responds to standard Type 2 commands including READ, WRITE, and SECTOR_SELECT. The GET_VERSION command returns product version information for identification purposes.
Key integration considerations:
Related chips in the same family include the NXP NTAG 223 DNA / 224 DNA for smaller-memory requirements, and the NXP NTAG 223 DNA StatusDetect for applications requiring tamper-evidence features.
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