X-NUCLEO-NFC04A1 STMicroelectronics

X-NUCLEO-NFC04A1 Dynamic NFC/RFID tag IC expansion board based on ST25DV04K for STM32 Nucleo Data brief Description The X-NUCLEO-NFC04A1 dynamic NFC/RFID tag IC expansion board is based on the ST25DV04K NFC Type V/RFID tag IC with a dual interface 4 Kbits EEPROM that also features an IC interface. It can be powered by the pin of Arduino connector or directly by the received carrier electromagnetic field. The X-NUCLEO-NFC04A1 expansion board is compatible with the Arduino UNO R3 Features connector pin assignment and can easily be Expansion board based on the ST25DV04K plugged onto any STM32 Nucleo board. Various dynamic NFC/RFID tag for STM32 Nucleo expansion boards can also be stacked to Up to 4-Kbit memory with NDEF support evaluate different devices operating together with 54 mm diameter, single layer circular the dynamic NFC tag. The board also features an antenna antenna with a 54 mm ISO 24.2 diameter, single Compatible with STM32 Nucleo boards layer, copper etched on PCB. Equipped with Arduino UNO R3 connector Self-powered or powered through the Arduino UNO R3 connectors Three general purpose LEDs Scalable solution, capable of cascading multiple boards for larger systems Free comprehensive development firmware library and example for ST25DV04K, compatible with STM32Cube firmware FCC and IC verified RoHS compliant June 2017 DocID030689 Rev 1 1/6 www.st.com Schematic diagrams X-NUCLEO-NFC04A1 Detailed description The X-NUCLEO-NFC04A1 is based on the ST25DV04K 4-Kbit Dynamic NFC/RFID tag NFC Forum type V with IC interface, fast transfer mode and energy harvesting. Figure 1: Functional block diagram The ST25DV04K is an NFC Type V / RFID tag IC with a dual-interface 4-kBit electrically erasable programmable read-only memory (EEPROM) that also features an IC interface. The EEPROM is organized in blocks of 512 bytes arranged in 4-byte pages in IC mode and in 128 blocks of 4 bytes in RF mode. It can be powered either from an external power supply or directly by the received carrier electromagnetic field. The tag features an event- configurable interruption output and supports multi-interruption: Field Change RF Busy Mail Box filled E Update RF user Interrupt RF User Set/Reset The ST25DV04K also features an Energy Harvesting mode. When activated, the ST25DV04K delivers a voltage on the Vout analog pin. In case the RF field strength is insufficient or when Energy Harvesting mode is disabled, the Vout pin goes into high-Z state and Energy Harvesting mode is automatically stopped. The X-NUCLEO-NFC04A1 is compatible with the Arduino UNO R3 connector pin assignment, and interfaces with the STM32 microcontroller via the IC pins. 2/6 DocID030689 Rev 1