原标题：　　ST M24SR64-Y动态NFC-RFID标签解决方案

　　ST公司的M24SR64-Y是具有双接口的动态NFC-RFID标签IC,嵌入EEPROM存储器,RF 协议和ISO/IEC 14443 Type A 与NFC Forum Type 4标签兼容,能与13.56 MHz RFID阅读器或NFC手机工作.本文介绍了M24SR64-Y主要特性,框图以及评估板M24SR-DISCOVERY主要特性,框图,电路图,材料清单和PCB元件布局图.

　　The M24SR64-Y device 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.

　　M24SR64-Y主要特性:

　　I2C interface

　　• Two-wire I2C serial interface supports 1 MHz protocol

　　• Single supply voltage: 2.7 V to 5.5 V

　　Contactless interface

　　• NFC Forum Type 4 Tag

　　• ISO/IEC 14443 Type A

　　• 106 Kbps data rate

　　• Internal tuning capacitance: 25 pF

　　Memory

　　• 8-Kbyte (64-kbit) EEPROM

　　• Support of NDEF data structure

　　• Data retention: 200 years

　　• Endurance: 1 million erase-write cycles

　　• 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

　　图1. M24SR64-Y框图

　　评估板M24SR-DISCOVERY

　　The M24SR-DISCOVERY is a demonstration kit to evaluate the features and capabilities of the M24SR series and is based on the M24SR64 device. Two versions of this kit are available: the Standard Edition and the Premium Edition.

　　The Premium Edition includes all of the Standard edition features, plus a headset and a Bluetooth module to demonstrate the convenience to pair it with a smartphone via NFC.

　　The M24SR64 device is a dynamic NFC/RFID tag IC with a dual interface. It embeds a 64 Kbits 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 with respect to the I2C protocol.

　　The RF protocol is compatible with ISO/IEC 14443 Type A and NFC Forum Type 4 Tag.

　　The board is powered through the USB bus. It also includes a microcontroller STM32F103 to drive the EEPROM via I2C and the LCD screen via SPI bus.

　　评估板M24SR-DISCOVERY主要特性:

　　• Ready-to-use printed circuit board (PCB) including:

　　– M24SR64-Y Dynamic NFC/RFID tag

　　– 31 mm x 30 mm 13.56 MHz double layer inductive antenna etched on the PCB (ANT14)

　　– STM32F103RGT6 64LQFP 32-bit microcontroller, with 1Mbytes of Flash memory

　　– LCD Color Screen (320*200 pixels)

　　– Different color LEDs

　　– USB microB connector for board powering

　　– JTAG connector for microcontroller firmware upgrade and debug

　　– Joystick for menu selection

　　• M24SR-DISCO-PREM specific features:

　　– Bluetooth module with audio outputs connected to Jack 3.5

　　– Headset

　　图2. 评估板M24SR-DISCOVERY框图

　　图3. 评估板M24SR-DISCOVERY外形图

　　评估板M24SR-DISCOVERY材料清单(BOM):

　　图7. 评估板M24SR-DISCOVERY PCB元件布局图:正面

　　图8. 评估板M24SR-DISCOVERY PCB元件布局图:背面