NTAG X DNA
The NXP NTAG X DNA is an NFC tag IC, with 16 KB EEPROM user memory, operating at 13.56 MHz, under ISO/IEC 14443-A, NFC Forum Type 4 ISO/IEC 14443-4.
ISO 14443-4 Type 4, 16KB memory, SUN auth, latest gen
Full Specifications
| Manufacturer | NXP |
|---|---|
| Frequency Category | NFC |
| Frequency | 13.56 MHz |
| Protocol | ISO/IEC 14443-A, NFC Forum Type 4, ISO/IEC 14443-4 |
| Memory | 16 KB EEPROM user memory |
| Interface | RF (contactless) |
| Temperature Range | -25°C to +85°C |
| Form Factor | Wafer, various antenna configurations |
| Security | AES-128 encryption, SUN authentication (Secure Unique NFC), originality signature, mutual authentication, encrypted file communication |
Engineering Brief
The NTAG X DNA is NXP's latest generation secure NFC tag featuring ISO 14443-4 Type 4 compliance with 16KB of EEPROM memory. It incorporates advanced SUN (Secure Unique NFC) authentication technology with AES-128 encryption, enabling dynamic URL generation and secure cloud-based authentication without requiring users to install dedicated apps. The chip provides robust anti-cloning protection through originality signatures and encrypted communication, making it ideal for brand protection and supply chain security applications where both authentication and consumer privacy are critical.
Typical Applications
Standards & Compliance
Frequently Asked Questions
What is SUN authentication on the NTAG X DNA?
SUN (Secure Unique NFC) authentication on the NTAG X DNA enables dynamic URL generation with cryptographic authentication parameters. Each tap generates a unique encrypted URL that can be verified server-side without requiring users to install a dedicated app, making it ideal for consumer-facing brand authentication.
How much memory does the NTAG X DNA have?
The NTAG X DNA features 16KB of EEPROM user memory, significantly more than standard NTAG series chips, allowing storage of extensive product information, authentication data, and supply chain records.
What encryption does the NTAG X DNA use?
The NTAG X DNA uses AES-128 encryption for secure communication and authentication. It supports mutual authentication between tag and reader, encrypted file communication, and cryptographic originality signatures to prevent cloning.
Is the NTAG X DNA compatible with standard NFC phones?
Yes, the NTAG X DNA is fully compatible with NFC-enabled smartphones as it follows ISO 14443-4 and NFC Forum Type 4 standards. The SUN authentication feature works with standard phone browsers without requiring specialized apps.
What is the difference between NTAG X DNA and older NTAG chips?
NTAG X DNA is NXP's latest generation with ISO 14443-4 Type 4 protocol (vs Type 2 on older NTAGs), 16KB memory, advanced SUN authentication with dynamic URL generation, AES-128 encryption, and mutual authentication—features absent in basic NTAG 213/215/216 chips.
What frequency does the NTAG X DNA operate at?
The NTAG X DNA operates at 13.56 MHz, the standard frequency for NFC and ISO 14443 contactless communication, ensuring worldwide compatibility with existing NFC infrastructure.
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