ST Life.augmented


45 mm x 75 mm flexible antenna reference board for M24LR04E-R Dual Interface EEPROM, NOT FOR SALE
  • Evaluation Evaluation

The FLEX-M24LR04E antenna reference board is a ready-to-use flexible PCB that features an M24LR04E Dual Interface EEPROM IC connected to a 45 mm x 75 mm 13.56 MHz etched RF antenna on one side, and to an I2C bus on the other side.

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

To demonstrate the energy harvesting function, the FLEX-M24LR04E can be used in conjunction with ST DEMO-CR95HF-A demonstration board.

The application can be powered directly from the M24LR04E VOUTpin.

The FLEX-M24LR04E Gerber files can be downloaded from

pdf Download
Data Brief

Key Features

  • Ready-to-use flexible printed circuit board (PCB) including
  • 45 mm x 75 mm 13.56 MHz inductive antenna etched on the PCB
  • 100 μm thickness PCB (Kapton)
  • M24LR04E-R Dual Interface EEPROM
  • Connection for I2C bus
  • Energy harvesting output (VOUT) with a 10 nF capacitance filtering circuit
  • 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
DB1688: 45 mm x 75 mm flexible antenna reference board for the M24LR04E-R Dual Interface EEPROM
1.0 185 KB

Hardware Resources

Board Manufacturing Specification

Description Version Size
Gerber files for FLEX-M24LR04E
1.0 12 KB

Bill of Materials

Description Version Size
Bill of material for FLEX-M24LR04E
5 KB

Schematic Pack

Description Version Size
Schematic for FLEX-M24LR04E
1.0 15 KB

Related Tools and Software

Related Tools and Software

Part Number Description
STSW-M24LR011 Software set up file for M24LR-DISCOVERY board
STSW-M24LR012 Nfcv-Reader Android App sample code

Sample & Buy

Part Number Marketing StatusCore ProductOrder From STUnit Price (US$)*
@ 1
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
FLEX-M24LR04EEvaluationM24LR04E-R-22No 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.