ICODE 3: High-performance HF tag IC for IOT

  • Preproduction
  • This page contains information on a preproduction product before release date March 31, 2024. Specifications and information herein are subject to change without notice. For additional information contact support or your sales representative.

Roll over image to zoom in

Block Diagram

Choose a diagram:


ICODE 3 Block Diagram 1

ICODE 3 TagTamper

ICODE 3 Block Diagram 2


NFC-HF Interface

  • ISO/IEC 15693 and NFC Forum Type 5 Tag compliant
  • 8-byte unique ID number
  • Resonant capacitor of 23pF and 97pF (for smaller antenna designs, available July 2024)
  • Fast read rate of up to 212kbit/s (ISO/IEC 15693)


  • Large user memory of 2400 bits
  • One-lock memory command for fast tag encoding (for fast in-line programming)
  • 50 years data retention
  • Write endurance of 100,000 cycles

Tag Protection

  • Customizable Originality Signature of 32 bytes or 48 bytes (based on ECC) for tag authenticity
  • Two 32-bit passwords for protecting the user memory, and one 32-bit password for protecting the configuration memory
  • 24-bit command-based or automatic tap counter, for example, for consumption tracking or web plausibility check

Extra Features

  • Automatic SELFAdjust mechanism for 23pF tags for optimal RF performance over a range of materials and conditions
  • Extended NFC features with auto-mirrors, for serialized, dynamic NFC messages - with native support in Android and iOS
  • Quiet mode to speed up inventory processes
  • IC temperature up to 105ºC


  • Two password protected untraceable modes
  • Password protected Destroy function

Optional: Tamper Detection

  • Optional App-free first-opening and current status detection (incl. auto-mirror)

Product Longevity Program

  • This product is included in the NXP Product Longevity program ensuring a stable supply of products for your designs

Part numbers include: SL2S3003FUD, SL2S3003TTFUD, SL2S3103FUD.


Quick reference to our documentation types.

5 documents

Design Resources


1 hardware offering


1 software file

Note: For better experience, software downloads are recommended on desktop.


What do you need help with?