ST25 Dynamic NFC Tags

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ST’s dynamic NFC / RFID tags feature up to 64-Kbit of EEPROM memory which can be accessed either through an RF contactless interface operating at 13.56 MHz or a low-power I²C interface except for ST25DV-PWM series (PWM outputs). Both short-range (ISO14443-A) and long-range (ISO15693) standards are supported.

  • ST25DV-I2C series: ISO15693 NFC forum type 5 certified dynamic tags suited for consumer electronics, industrial, metering, lighting, healthcare, home appliance, electronic shelf labels IoT objects and more.
  • ST25DV-PWM series: ISO15693 NFC forum type 5 certified dynamic tags with Pulse Width Modulation (PWM) outputs suitable for industrial configuration application.
product longevity

The benefit of our 10 years longevity program is available to a part of the devices making them suitable for deployment in Industrial-grade and Medical NFC / RFID applications.

nfc tag webapp

ST25 Webapp - Use your Android phone to communicate with ST25 NFC Dynamic Tags without having to download any application.

nfc tag standard compliant

Standard compliant

  • ISO14443A
  • ISO15693
  • NFC Forum


nfc tag features


  • 13.56MHz HF interface
  • I2C interface
  • Energy Harvesting
  • Configurable output signal (GPO)
  • Fast Transfer Mode
  • PWM outputs
nfc tag memory eeprom

Best-In-Class memory

  • From 2-Kbit to 64-Kbit
  • Up to 200 years data retention
  • 1M erase-write cycles
  • Up to 128-bit passwords
nfc hardware software


  • Documentation
  • Evaluation boards
  • Antenna Design Tool
  • Associated software
  • ST community



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