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The ST25DV-PWM series of dynamic NFC/RFID tags offers a 13.56 MHz long-range interface compatible with NFC phones and readers. The ST25DV02K-W1/W2 device is an NFC/RFID tag IC with PWM outputs.

The PWM output can be programmed independently and securely, allowing a large field of application. The IC provides live update of PWM parameters by contactless interface, extending the user experience.

Contactless interface

  • Based on ISO/IEC 15693 and NFC Forum Type 5 Tag

Pulse width modulation outputs

  • Up to 2x independent outputs:
    - 1x PWM output with ST25DV02K-W1
    - 2x PWM outputs with ST25DV02K-W2
  • From 488 Hz to 31250 Hz
  • 62.5 ns pulse width resolution:
    - From 15-bit resolution at 488 Hz to 9-bit resolution at 31.25 kHz
  • Accuracy: ±10% over temperature range
  • No need for external oscillator
  • Supply voltage from 1.8 V to 5.5 V, independent from contactless interface
  • TruST25™ digital signature

The ST25DV-PWM series of dynamic NFC/RFID tags offers a 13.56 MHz long-range interface compatible with NFC phones and readers. The ST25DV02K-W1/W2 device is an NFC/RFID tag IC with PWM outputs.  The PWM output can be programmed independently and securely, allowing a large field of application. The IC provides live update of PWM parameters by contactless interface, extending the user experience.

Featured Products

ST25DV-PWM-eSET

The ST25DV-PWM-eSET is a dynamic NFC tag evaluation board based on the ST25DV02K-W2 device, an NFC/RFID tag IC with PWM outputs embedding a 2-Kbit EEPROM that can be partitioned for use-case flexibility.

The PWM output can be programmed independently and securely, allowing the user to address a large number of applications.

eDesignSuite

Antenna Design

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Step 1: Purchase Discovery kit, Nucleo board or Evaluation board

ST25DV-PWM-eSET

Discovery kit for the ST25DV-PWM NFC/RFID tag IC

Step 2: Download associated software

STSW-ST25001

Application executable of the "NFC Tap" Android app for ST25 product family

STSW-ST25PC001

Windows® PC software for ISO15693, ISO14443-A/B, NFC and industrial readers

STSW-ST25SDK001

Software Development Kit for ST25 Tags and Dynamic Tags

Step 3: Get trained