Dynamic NFC/RFID tag IC with 2-Kbit EEPROM and 2x PWM (Pulse Width Modulation) outputs

The ST25DV02K-W1/W2 device is an NFC/RFID tag IC with PWM outputs. It embeds an EEPROM memory of 2 Kbits, which can be divided for use-case flexibility.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.The device can be operated from a 13.56 MHz RFID reader or any NFC mobile phone.The contactless interface is based on ISO/IEC15693 and NFC Forum type 5 tag standards.

Key Features

  • 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:
    • Accuracy: ±10% over temperature range
    • No need for external oscillator
    • Supply voltage from 1.8 V to 5.5 V, independent from contactless interface
    • Independent push-pull outputs
    • Live update of PWM parameters controlled by contactless interface
  • Contactless interface
    • Based on ISO/IEC 15693 and NFC Forum Type 5 Tag
    • Supports all ISO/IEC 15693 modulations, coding, sub-carrier modes and data rates
    • Single and multiple blocks read
    • Internal tuning capacitance: 28.5 pF
  • Memory
    • 2-kbits of EEPROM
    • Accessible in blocks of 4x bytes
    • 5 ms typical write time (one block)
    • Data retention: 40 years
    • Write cycles endurance:
  • Data protection
    • Up to 4 independent areas, including the PWM control area, with flexible protection mechanism based on 32/64-bits passwords
    • System configuration: write protection by 32-bit password
    • TruST25™ Digital signature mechanism for authentication
  • Temperature range
  • Package
    • 8-pin packages
    • ECOPACK2® (RoHS compliant)


Technical Documentation

Product Specifications
Description Version Size
DB3276 DB3276: Dynamic NFC/RFID tag IC with 2-Kbit EEPROM with up to 2x pulse width modulation outputs 2.0 132 KB
Support & Community

Sample & Buy

Part Number Package Packing Type Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
ST25DV02K-W2R8S3 SO8 Tape And Reel Preview - - NEC EAR99 - MORE INFO No availability reported, please contact our Sales office
ST25DV02K-W2R8T3 TSSOP8 Tape And Reel Preview - - NEC EAR99 - MORE INFO No availability reported, please contact our Sales office

(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office  or our Distributors

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
ST25DV02K-W2R8S3 PreviewSO8IndustrialEcopack2
ST25DV02K-W2R8T3 PreviewTSSOP8IndustrialEcopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.