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SMD-Inductor based antenna reference board for M24LR04E-R
  • Evaluation Evaluation

The ANT3-M24LR04E antenna reference board is a ready-to-use PCB that features an M24LR04E-R Dual Interface EEPROM IC connected to a 4.7 μH SMD inductor acting as an RF antenna on one side, and to an I2C bus on the other side.

The ANT3-M24LR04E antenna allows system designers to evaluate the M24LR04E-R performance and capabilities, and to get started with their design.

The ANT3-M24LR04E Gerber files can be downloaded from

pdf Download
Data Brief

Key Features

  • Ready-to-use printed circuit board (PCB) including
  • 4.7 μH SMD inductor acting as an RF antenna
  • M24LR04E-R Dual Interface EEPROM
  • I2C connector
  • RF WIP/BUSY output with 20 kΩ pull-up resistor, to indicate that an RF operation is ongoing



Design Resources


Technical Documentation

Product Specifications

Description Version Size
DB1925: SMD-inductor based antenna reference board for the M24LR04E-R Dual interface EEPROM
1.0 83 KB

Application Notes

Description Version Size
AN2972: Designing an antenna for the M24LRxx-R and M24LRxxE-R dual interface I²C/RFID devices
6.1 1,480 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
ANT3-M24LR04E Gerber Files
65 KB

Bill of Materials

Description Version Size
ANT3-M24LR04E bill of material
50 KB

Schematic Pack

Description Version Size
ANT3-M24LR04E schematic
44 KB

Sample & Buy

Part Number Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
ANT3-M24LR04EEvaluationM24LR04E-R-15No availability reported, please contact our Sales officeEcopack2-

(*) 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
(**) The Material Declaration forms available on 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.