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64-Kbit Dynamic NFC/RFID tag with password protection

The M24LR64-R device is a Dynamic NFC/RFID tag IC with a dual-interface, electrically erasable programmable memory (EEPROM). It features an I2C interface and can be operated from a VCCpower supply. It is also a contactless memory powered by the received carrier electromagnetic wave. The M24LR64-R is organized as 8192 × 8 bits in the I2C mode and as 2048 × 32 bits in the ISO 15693 and ISO 18000-3 mode 1 RF mode.

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Errata Sheet
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Key Features

  • I2C interface
  • Two-wire I2C serial interface supports 400 kHz protocol
  • Single supply voltage:
  • 1.8 V to 5.5 V
  • Byte and Page Write (up to 4 bytes)
  • Random and Sequential Read modes
  • Self-timed programming cycle
  • Automatic address incrementing
  • Enhanced ESD/latch-up protection
  • Contactless interface
  • ISO 15693 and ISO 18000-3 mode 1 compatible
  • 13.56 MHz ± 7 kHz carrier frequency
  • To tag:
  • 10% or 100% ASK modulation using 1/4 (26 kbit/s) or 1/256 (1.6 kbit/s) pulse position coding
  • From tag:
  • load modulation using Manchester coding with 423 kHz and 484 kHz subcarriers in low (6.6 kbit/s) or high (26 kbit/s) data rate mode.
  • Supports the 53 kbit/s data rate with Fast commands
  • Internal tuning capacitance:
  • 27.5 pF
  • 64-bit unique identifier (UID)
  • Read Block & Write (32-bit Blocks)
  • Memory
  • 64-Kbit EEPROM organized into:
  • 8192 bytes in I2C mode
  • 2048 blocks of 32 bits in RF mode
  • Write time:
  • I2C: 5 ms (Max.)
  • RF: 5.75 ms including the internal Verify time
  • More than 1 Million write cycles
  • Multiple password protection in RF mode
  • Single password protection in I2C mode
  • More than 40-year data retention
  • Package:
  • ECOPACK2®(RoHS compliant and Halogen-free)

Circuit Diagram

Design Resources


Technical Documentation

Product Specifications

Description Version Size
DS5971: Dynamic NFC/RFID tag IC with 64-Kbit EEPROM with I²C bus and ISO 15693 RF interface
16.0 3,182 KB

Application Notes

Description Version Size
AN1471: What happens to the M24xxx I²C EEPROM if the I²C bus communication is stopped?
4.2 73 KB
AN2972: Designing an antenna for the M24LRxx-R and M24LRxxE-R dual interface I²C/RFID devices
6.1 1,480 KB
AN3002: Description of the M24LRxx-R and M24LRxxE-R dual interface memory’s password protection mechanism
2.0 319 KB
AN3057: How to manage simultaneous I²C and RF data transfers with the M24LR64-R device
5.0 572 KB
AN3163: Configuring your ISO 15693 reader to support the M24LRxx-R and M24LRxxE-R devices
2.0 227 KB
AN3171: Comparing the M24C64-R, M24C64-F and M24C64-W devices to the M24LR64-R dual interface EEPROM
1.1 136 KB
AN3178: Using a surface-mount inductor as an M24LRxx antenna
2.2 305 KB
AN3209: Developing your M24LR64-R datalogger application for temperature acquisition
2.1 822 KB
AN3224: Developing an application allowing PR101-USB and MR101-USB FEIG readers to communicate with M24LRXX transponders
2.1 422 KB
AN3250: M24LR64-R Multi-bank reference design description and settings
1.2 591 KB
AN3355: Designing an application board compatible with either standard M24LRxx-R or energy-harvesting M24LRxxE-R devices
2.1 98 KB
AN3375: CR95HF library for ISO15693 and Dual Interface EEPROM products
1.1 690 KB
AN3408: Using LRIxx, LRISxx, M24LRxx-R and M24LRxxE-R products as NFC vicinity tags
4.0 962 KB
AN3985: Using the CR95HF library with STM8L microcontrollers
2.1 1,074 KB
AN4054: Comparison of RF addressing modes of low-density and high-density ISO/IEC 15693 devices
3.0 116 KB

User Manual

Description Version Size
UM0853: M24LRxx application software user guide
3.1 1,697 KB
UM0925: Using the M24LR64-R datalogger reference design
2.3 847 KB
UM1479: STEVAL-IPR002V1: M24LR64-R based data logger and event logger
1.0 3,484 KB
UM1569: STEVAL-IHP004V1: SmartplugW demonstration board
1.0 1,048 KB

Related Tools and Software

Related Tools and Software

Part Number Description
ANT7-M24LR16E 15 mm x 15 mm double layer antenna reference board for the M24LR16E-R Dual Interface EEPROM, NOT FOR SALE
ANT2-M24LR16E 20 mm x 40 mm antenna reference board for M24LR16E-R, NOT FOR SALE
ANT1-M24LR16E 45 mm x 75 mm antenna reference board for M24LR16E-R, NOT FOR SALE
DEVKIT-M24LR-A Development kit for M24LRxx-R
ANT10-M24LR16E Antenna reference board for M24LR16E-R with ESD protection, NOT FOR SALE
STSW-M24LR016 Firmware for M24LR board included in the M24LR-DISCOVERY kit
STSW-M24LR013 Antenna calculation software supporting AN2972
STSW-M24LR012 Nfcv-Reader Android App sample code
STSW-M24LR011 Software set up file for M24LR-DISCOVERY board
STSW-M24LR006 ISO/IEC 15693 and Dual Interface EEPROM library
STSW-M24LR002 PC software source code example for FEIG readers to be used with LRI & M24LR products (AN3224)
ANT3-M24LR04E SMD-Inductor based antenna reference board for M24LR04E-R
FLEX-M24LR04E 45 mm x 75 mm flexible antenna reference board for M24LR04E-R Dual Interface EEPROM, NOT FOR SALE
ROBOT-M24LR16E-A Demonstration board for M24LR16E-R, NOT FOR SALE
STSW-STM8061 ISO/IEC 15693 and Dual Interface EEPROM library for STM8L microcontrollers (AN3985)
M24LR-DISCOVERY Discovery kit for M24LR04E Dual Interface EEPROM with energy harvesting
STSW-95HF001 PC software executable for DEMO-CR95HF-A board (UM1084)
STSW-95HF002 PC software source code example for DEMO-CR95HF-A board (AN3954)

Publications and Collaterals


Description Version Size
Semiconductor solutions for healthcare applications
1.0 665 KB

Sample & Buy

Part Number Marketing StatusPackagePacking TypeAutomotive GradeOrder From STUnit Price (US$)*
@ 1000
Distributor AvailabilityRoHS Compliance GradeDownload
Material Declaration**
M24LR64-RDW6T/2NRNDTSSOP8Tape And Reel_-.72Distributor reported inventory date: 2016-02-06
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA67574000
Farnell Element14Order NowEUROPE33111
M24LR64-RMB6T/2NRNDUFDFPN 8 2x3x0.6Tape And Reel_-.8Distributor reported inventory date: 2016-02-06
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA16652500
M24LR64-RMN6T/2NRNDSO8Tape And Reel_-.72Distributor reported inventory date: 2016-02-06
Distributor NameRegionStockMin. order
ARROWOrder NowAMERICA23402500

(*) 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.
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