ST25TN series NFC tags

Near Field Communication (NFC) Type 2 tags and labels operate in the high-frequency (HF) 13.56 MHz range and comply with the NFC-A Technology specification from the NFC Forum. The data stored in these Type 2 tags and labels is transferred to NFC smartphones or professional NFC/RFID HF readers that support the NFC Data Exchange Format (NDEF).

ST25TN Type 2 NFC Tag chips are certified by the NFC Forum and comply with the industrial ISO/IEC 14443-A specifications, providing interoperability across NFC implementations in NFC smartphones and NFC/RFID HF readers.

A competitive consumer-oriented solution with Augmented NDEF feature

The cost-effective ST25TN Type 2 NFC Tag IC complies with ISO/IEC14443 Type A and NFC Forum type 2 tag specifications, operates at the fast baud rate of 106kbits/s, and embeds the TruST25 digital signature, which ensures tag authenticity and defends brands against counterfeiting.

The ST25TN series offers tags with 512-bit up to 1.6-Kbit user memory and includes a contextual automatic NDEF messaging service. This Augmented NDEF technology allows the tag to respond with dynamically generated content after a simple "tap" by end users with their NFC mobile phones.

A mass market approach with wide application potential

The ST25TN series can communicate with Android/iOS NFC mobile phones and NFC Forum compliant readers, offering a very wide range of possibilities across various consumer engagement, product information, and smart labelling scenarios.

The highly cost-effective ST25TN series targets multiple applications such as gaming, clothing & footwear, consumer packaged goods, sports industry, wine & spirits, and represents an excellent balance between cost and performance.

ST25TN Type 2 Tag ICs series differentiating features and options

  • ISO/IEC 14443 Type A & NFC Forum Type 2
  • Fast 106 kb/s baud rate
  • Up to 1.6kbit EEPROM memory
  • 7-byte Unique Identifier
  • Native NDEF support
  • Augmented NDEF
  • Unique Tap Code (UTC)
  • Kill mode with password protection
  • Lock block mechanism
  • TruST25™ digital signature
  • 50pF tuning capacitance
  • Up to 40 years data retention
  • SBN12, SBN075 and DFN5 package versions

Market segments

Use cases


Wine & Spirits

Healthcare & Wellness


Consumer Packaged Goods (CPG)

Clothing & Footwear

Sports industry


Consumer engagement

Product identification

Product configuration (parameter setting)

Product information

Smart labelling

NFC forum certification


eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.

NFC/RFID Calculators

Choose design tool:

NFC Inductance

Input geometry and substrate properties
Get antenna impedance

UHF Link Budget

Enter forward and reverse link characteristics
The tool returns link budget estimate

NFC Tuning Circuit

Enter antenna parameter and matching target
Select the topology of the matching network
The tool returns component values for the desired design targets