NFCNXP Semiconductors

NTAG 426Q

Secure NFC tag IC with AES-128 authentication and tamper detection for pharmaceutical and luxury goods

Official Datasheet ↗
Frequency
13.56 MHz
Protocol
ISO/IEC 14443-A, NFC Forum Type 2 compliant
Memory
416 bytes user memory / 1024 bytes total EEPROM
Interface
RF (contactless)
Temp Range
-25°C to +85°C
Form Factor
Wafer, VQFN48, HVQFN32

Full Specifications

ManufacturerNXP Semiconductors
Frequency CategoryNFC
Frequency13.56 MHz
ProtocolISO/IEC 14443-A, NFC Forum Type 2 compliant
Memory416 bytes user memory / 1024 bytes total EEPROM
InterfaceRF (contactless)
Temperature Range-25°C to +85°C
Form FactorWafer, VQFN48, HVQFN32
SecurityAES-128 mutual authentication, SUN (Secure Unique NFC) message with encrypted CMAC, tamper detection, originality signature, 32-bit password protection

Engineering Brief

The NTAG 426Q is a secure NFC tag IC operating at 13.56 MHz with ISO/IEC 14443-A compliance, designed specifically for anti-counterfeiting applications in pharmaceutical and luxury goods markets. It features AES-128 cryptographic authentication with Secure Unique NFC (SUN) message generation that creates encrypted, per-read unique URLs or data, preventing cloning and enabling secure supply chain tracking. The chip includes 416 bytes of user-configurable memory, tamper detection capabilities, and an originality signature for verifying chip authenticity, making it ideal for high-security track-and-trace systems and brand protection applications.

Typical Applications

  • Pharmaceutical anti-counterfeiting and track-and-trace
  • Luxury goods authentication and brand protection
  • Supply chain integrity verification
  • Product tamper detection and seal monitoring
  • Consumer engagement with secure authentication
  • High-value document and certificate protection

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