DEVKIT-M24LR-A 时间：2025/7/23 7:59:20 阅读：9

The DEVKIT-M24LR-A is a development kit designed by STMicroelectronics for evaluating and developing applications based on the M24LR series of dynamic NFC tags. These tags are capable of operating in both NFC and RFID modes, making them versatile for a wide range of applications such as access control, inventory management, and smart advertising. The DEVKIT-M24LR-A provides a complete platform for developers to test the functionality of the M24LR chips, including communication protocols, memory operations, and energy harvesting capabilities.

参数

Supply Voltage: 1.8V to 5.5V
　　Operating Temperature: -40°C to +85°C
　　Memory Size: 64-Kbit (M24LR64E) or 256-Kbit (M24LR256E)
　　Communication Interface: I2C and ISO/IEC 14443 Type B
　　Read Range: Up to 10 cm (depending on antenna and environment)
　　Energy Harvesting: Yes, supports power scavenging from RF field
　　Package Type: SO8 or TSSOP
　　Frequency: 13.56 MHz

特性

The DEVKIT-M24LR-A development kit includes a daughterboard with an M24LR NFC tag IC, an antenna, and connectors for easy integration with a host microcontroller. The kit allows developers to explore the full functionality of the M24LR series, including dual-interface operation where the tag can be accessed via NFC/RFID and via an I2C interface from a host microcontroller. This enables the development of applications that can be updated or configured wirelessly.
　　One of the standout features of the M24LR series is its ability to operate without a battery by harvesting energy from the incoming RF field. This makes it ideal for applications where power efficiency and sustainability are important. The development kit allows for testing and optimizing this feature in real-world conditions.
　　The M24LR chips also support unique identifiers (UIDs), which can be used for secure authentication and tracking. The development kit provides tools to read and write these UIDs, as well as to test security features such as password protection and access control.
　　The kit is compatible with standard NFC readers and smartphones, allowing for easy testing of user-facing applications. It also supports dynamic data exchange, meaning the content of the tag can be changed in real time via the I2C interface, enabling interactive and responsive NFC applications.

应用

The DEVKIT-M24LR-A is widely used in the development of applications such as smart posters, product authentication, logistics and supply chain tracking, access control systems, and industrial monitoring. It is also suitable for energy-constrained applications where battery-free operation is preferred, such as sensor data logging and wireless configuration of devices. Additionally, it is used in consumer electronics for easy setup and pairing of devices via NFC.