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M24SR04 belongs to the ST25 family which includes all STMicroelectronics NFC/RFID tag and reader products.
The M24SR04 devices is a dynamic NFC/RFID tag IC with a dual interface. It embeds an EEPROM memory. It can be operated from an I2C interface or by a 13.56 MHz RFID reader or an NFC phone.
The I2C interface uses a two-wire serial interface, consisting of a bidirectional data line and a clock line. It behaves as a slave in the I2C protocol.
The RF protocol is compatible with ISO/IEC 14443 Type A and NFC Forum Type 4 Tag.Key Features
- I2C interface
- Two-wire I2C serial interface supports 1 MHz protocol
- Single supply voltage:
- 2.7 V to 5.5 V for grade Y
- 2.4 V to 5.5 V for grade G (Limited temperature range -25 to 85 °C)
- Contactless interface
- NFC Forum Type 4 Tag
- ISO/IEC 14443 Type A
- 106 Kbps data rate
- Internal tuning capacitance: 25 pF
- Memory
- 512-byte (4-kbit) EEPROM
- Support of NDEF data structure
- Data retention: 200 years
- Write cycle endurance:
- 1 million Write cycles at 25 °C
- 600k Write cycles at 85 °C
- Read up to 246 bytes in a single command
- Write up to 246 bytes in a single command
- 7 bytes unique identifier (UID)
- 128 bits passwords protection
- Package
- 8-lead small-outline package (SO8) ECOPACK2®
- TSSOP8 ECOPACK2®
- UFDFPN8 ECOPACK2®
- Digital pad
- GPO: configurable General Purpose Output
- RF disable: activation/deactivation of RF commands
- Temperature range
- From - 40 °C up to 85 °C
- I2C interface
Featured Videos
Experiment with NFC/RFID tags using the ST M24SR-DISCOVERY
Ecosystems
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Picture Part number Manufacturer Description AZURE Cloud Microsoft Microsoft Azure is an ever-expanding set of cloud services to help your organization meet your business challenges. It's the freedom to build, manage, and deploy applications on a massive, global network using your favorite tools and frameworks. Part NumberMicrosoft Azure is an ever-expanding set of cloud services to help your organization meet your business challenges. It's the freedom to build, manage, and deploy applications on a massive, global network using your favorite tools and frameworks.
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Picture Part number Manufacturer Description 
X-NUCLEO-NFC01A1 ST Dynamic NFC tag expansion board based on M24SR for STM32 Nucleo Part NumberDynamic NFC tag expansion board based on M24SR for STM32 Nucleo
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Embedded Software
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Picture Part number Manufacturer Description 
FP-CLD-WATSON1 ST STM32Cube function pack for IoT node with Wi-Fi, NFC and sensors for vibration analysis, connected to IBM Watson IoT Cloud 
FP-SEC-BLENFC1 ST Bluetooth Low Energy and Dynamic NFC tag software expansion for STM32Cube 
FP-SEC-WIFINFC1 ST Wi-Fi and dynamic NFC software expansion for STM32Cube X-CUBE-NFC1 ST STM32Cube expansion software for X-NUCLEO-NFC01A1 Part NumberSTM32Cube function pack for IoT node with Wi-Fi, NFC and sensors for vibration analysis, connected to IBM Watson IoT Cloud
Bluetooth Low Energy and Dynamic NFC tag software expansion for STM32Cube
Wi-Fi and dynamic NFC software expansion for STM32Cube
STM32Cube expansion software for X-NUCLEO-NFC01A1
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Picture Part number Manufacturer Description STSW-95HF001 ST PC software executable for DEMO-CR95HF-A board (UM1084) STSW-95HF002 ST PC software source code example for DEMO-CR95HF-A board (AN3954) STSW-M24SR001 ST Firmware for the M24SR-DISCOVERY board STSW-ST25001 ST Application executable of the "NFC Tap" Android app for ST25 product family 
STSW-ST25IOS001 ST Application executable of the "NFC Tap" iOS app for ST25 product family STSW-ST25PC001 ST Windows® PC software for ISO15693, ISO14443-A/B, NFC and industrial readers STSW-ST25SDK001 ST Software Development Kit for ST25 Tags and Dynamic Tags Part NumberPC software executable for DEMO-CR95HF-A board (UM1084)
PC software source code example for DEMO-CR95HF-A board (AN3954)
Firmware for the M24SR-DISCOVERY board
Application executable of the "NFC Tap" Android app for ST25 product family
Application executable of the "NFC Tap" iOS app for ST25 product family
Windows® PC software for ISO15693, ISO14443-A/B, NFC and industrial readers
Software Development Kit for ST25 Tags and Dynamic Tags
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Evaluation Tools
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Picture Part number Manufacturer Description 
ANT7-T-M24SR64 ST 14 mm x 14 mm double layer antenna reference board for the M24SR64 Dual Interface EEPROM IOTZ-TAPNLINK-PRIMER-NB IoTize The IoTize TapNLink Primer enables the connection of your STM32-based electronic system to a smartphone via the Bluetooth Low Energy (BLE) interface and/or Near Field Communication (NFC) interface. 
M24SR-DISCOVERY ST Discovery kit for the M24SR series - Dynamic NFC/RFID tag Part Number14 mm x 14 mm double layer antenna reference board for the M24SR64 Dual Interface EEPROM
The IoTize TapNLink Primer enables the connection of your STM32-based electronic system to a smartphone via the Bluetooth Low Energy (BLE) interface and/or Near Field Communication (NFC) interface.
Discovery kit for the M24SR series - Dynamic NFC/RFID tag
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Quality and Reliability
| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| M24SR04-YDW6T/2 | Active | TSSOP8 | Industrial | Ecopack2 | |
| M24SR04-YMC6T/2 | Active | UFDFPN 8 2x3x0.6 | Industrial | Ecopack2 | |
| M24SR04-YMN6T/2 | Active | SO8 | Industrial | Ecopack2 | |
(**) 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.
Sample & Buy
| Part Number | Order from Distributors | Order from ST | Package | Marketing Status | ECCN (US) | Country of Origin | Operating Temperature (°C) (max) | Operating Temperature (°C) (min) | Budgetary Price (US$)*/Qty | |
|---|---|---|---|---|---|---|---|---|---|---|
| M24SR04-YDW6T/2 | 3 distributors | Buy now | TSSOP8 | Active | EAR99 | CHINA | 85 | -40 | 0.33 / 1k | |
| M24SR04-YMC6T/2 | 2 distributors | Buy now | UFDFPN 8 2x3x0.6 | Active | EAR99 | PHILIPPINES | 85 | -40 | 0.35 / 1k | |
| M24SR04-YMN6T/2 | 5 distributors | Get sample | SO8 | Active | EAR99 | CHINA | 85 | -40 | 0.33 / 1k |
(*) 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
