STMicroelectronics ST25R300 NFC Card Reader Expansion Board User Manual
Below you will find brief information for X-NUCLEO-NFC12A1. This NFC card reader expansion board supports all five NFC Forum tag types in reader mode. It's designed for use with STM32 and STM8 Nucleos. Key features include NFC-A/B, NFC-F, and NFC-V poller, and listener functions. It is equipped with Arduino® UNO R3 connector. Integrated HF reader/NFC initiator/NFC target IC with an antenna etched on the PCB and the related tuning circuit. It supports ISO/IEC 14443 and ISO/IEC 15693 protocols.
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UM3506 User manual Getting started with the NFC card reader expansion board based on ST25R300 for STM32 and STM8 Nucleos Introduction The X-NUCLEO-NFC12A1 NFC card reader expansion board is based on the ST25R300 device. The expansion board is configured to support all five NFC Forum tag types in reader mode. The ST25R300 manages frame coding and decoding in reader mode for standard applications. It supports ISO/IEC 14443 type A and B, ISO/IEC 15693 (single subcarrier only) and ISO/IEC 18092 communication protocols as well as the detection, reading and writing of NFC Forum type 1, 2, 3, 4, and 5 tags. Integrated HF reader/NFC initiator/NFC target IC with an antenna etched on the PCB and the related tuning circuit. Figure 1. X-NUCLEO-NFC12A1 expansion board Notice: For dedicated assistance, please submit a request through our online support portal at www.st.com/support. UM3506 - Rev 1 - April 2025 For further information, contact your local STMicroelectronics sales office. www.st.com UM3506 Getting started 1 Getting started 1.1 Overview The X-NUCLEO-NFC12A1 expansion board features: • • • • • • • • • • 1.2 On-board NFC card reader and host card emulation IC: ST25R300 NFC Forum NFC-A, NFC-B, NFC-F, and NFC-V poller NFC Forum NFC-A, NFC-F listener 13.56 MHz inductive antenna, 47 x 34 mm, four turns, etched on PCB and associated tuning circuit Possibility of driving two antennas in a single-ended configuration Six general-purpose LEDs Equipped with Arduino® UNO R3 connector Free comprehensive development firmware library compatible with STM32Cube and samples for ST25R300 FCC and CE certified RoHS and WEEE compliant Board connection Connect the X-NUCLEO-NFC12A1 to an STM32 Nucleo-64 development board via Arduino® UNO R3 connectors. The PC USB port has to be capable to delivering at least 300 mA at 5 V supply. A green LED indicates whether the 5 V supply is present, while the six status LEDs are controlled via MCU. Provision for unpopulated jumpers enables alternative connections of all lines (except the SPI) to the STM32 MCU. To demonstrate the wake-up feature, two capacitive electrodes are placed on the PCB and the automatic antenna tuning variable capacitors are also implemented. The board is connected to a power supply. It should be used on a clean and nonflammable surface. 1.3 Hardware requirements The X-NUCLEO-NFC12A1 expansion board is designed to be used with any STM32 Nucleo board, although complete testing has been performed using the NUCLEO-L476RG hosting the STM32L476RG microcontroller. The STM32 Nucleo firmware and the related documentation are available at dedicated page. 1.4 System requirements To use STM32 Nucleo boards with the X-NUCLEO-NFC12A1 expansion board the following software and hardware are required: • • • • An STM32 Nucleo-64 development board A Windows® PC to install the firmware package A USB type A to Mini-B USB cable to connect the STM32 Nucleo board to the PC The unit must be supplied by a safety extralow voltage with falling characteristics (<5 V, <15 W), according to EN60950-1. This power supply has to be classified as electrical source 1 (ES1), PS1 according to EN62368-1 To install the board firmware package (order code: X-CUBE-NFC12) the PC must have: • • 128 MB of RAM 40 MB of free hard disk space The X-CUBE-NFC12 firmware and the related documentation are available at ST site. UM3506 - Rev 1 page 2/18 UM3506 Board setup 2 Board setup To set up the board: UM3506 - Rev 1 Step 1. Connect the X-NUCLEO-NFC12A1 expansion board to the STM32 Nucleo board from the top through the Arduino® UNO R3 connectors Step 2. Power the STM32 Nucleo board using a Mini-B USB cable Step 3. Program the firmware on the STM32 Nucleo board using the provided example Step 4. Reset the MCU using the reset button available on the STM32 Nucleo board. The evaluation kit is ready to be used. page 3/18 UM3506 Hardware 3 Hardware The X-NUCLEO-NFC12A1 expansion board allows the user to test the functionality of the ST25R300, which supports the reader/writer and the card emulation modes. The ST25R300 IC module and the STM32 Nucleo board are connected through CN5, CN6, CN8 and CN9 connectors (see the tables below). Table 1. Interconnections between the X-NUCLEO-NFC12A1 expansion board and the NUCLEO-L476RG board (left side) Signal Connector Pin number NUCLEO-L476RG X-NUCLEO-NFC12A1 NC 1 (NC) (NC) IOREF 2 3V3 (VDD_IO) (NC) RESET 3 NRST (NC) 4 3V3 (VDD_IO) 3V3 (VDD_IO) 5 5V (VDD) 5V (VDD) GND 6 GND GND GND 7 GND GND VIN 8 VIN NC A0 1 PA0 IRQ_MCU A1 2 PA1 MCU_LED1 3 PA4 MCU_LED2 4 PB0 MCU_LED3 A4 5 PC1 - A5 6 PC0 - 3V3 5V A2 A3 CN6 Power CN8 Power Table 2. Interconnections between the X-NUCLEO-NFC12A1 expansion board and the NUCLEO-L476RG board (right side) Signal Pin number NUCLEO-L476RG X-NUCLEO-NFC12A1 D15 10 PB8 SCL_MCU D14 9 PB9 SDA_MCU AVDD 8 AVDD NC GND 7 GND GND 6 PA5 SCLK_MCU 5 PA6 MISO_MCU D11 4 PA7 MOSI_MCU D10 3 PB6 /SS_MCU D9 2 PC7 - D8 1 PA9 RESET D7 8 PA8 MCU_LED4 D6 7 PB10 MCU_LED5 6 PB4 MCU_LED6 5 PB5 - D3 4 PB3 NC D2 3 PA10 NC D13 D12 Connector CN5 Digital D5 D4 UM3506 - Rev 1 CN9 Digital page 4/18 UM3506 Hardware Signal D1 Connector CN9 Digital D0 3.1 Pin number NUCLEO-L476RG X-NUCLEO-NFC12A1 2 PA2 NC 1 PA3 NC Host interface and GPIO connection The X-NUCLEO-NFC12A1 expansion board contains the ST25R300-AQET chip and is powered by the STM32 Nucleo board. The ST25R300 is driven by the microcontroller via an SPI interface. The six LEDs indicate the detected RFID technology (for example, ISO14443 Type A for LED4). 3.2 X-NUCLEO-NFC12A1 expansion board component placement Figure 2. X-NUCLEO-NFC12A1 component placement 1. General purpose LEDs 2. ST25R300 3. Matching circuit 4. 47x34 mm four-turn antenna 3.3 ST25R300 device The ST25R300 is a high-performance NFC universal device supporting NFC initiator, NFC target, NFC reader, and NFC card emulation modes. The ST25R300 includes an advanced analog front end (AFE) and a highly integrated data framing system for: • • • • UM3506 - Rev 1 ISO 18092 passive and active initiator, ISO18092 passive and active target NFC-A/B (ISO 14443A/B) reader including higher bit rates NFC-F (Felica™) reader NFC-V (ISO 15693) reader up to 53 kbps page 5/18 UM3506 Hardware • NFC-A and NFC-F card emulation Special stream and transparent modes of the AFE and framing system can be used to implement other custom protocols such as MIFARE® classic in reader or card emulation mode. UM3506 - Rev 1 page 6/18 Schematic diagrams Figure 3. X-NUCLEO-NFC12A1 circuit schematic (1 of 3) Extension connectors LED6 LED5 3V3 1K 1K 1K 1K 680R 1K CN9 CN8 1 2 3 4 5 6 PA0 PA1 PA4 PB0 PC1 PC0 Header 6X1_Female A0 A1 A2 A3 A4 A5 ST10 ST12 ST14 ST16 ST18 ST20 SPI_IRQ LED1 LED2 LED3 LED4 LED5 LED6 ST9 ST11 ST13 ST15 D7 D6 D5 D4 D3 D2 D1 D0 PA8 PB10 PB4 PB5 PB3 PA10 PA2 PA3 8 7 6 5 4 3 2 1 Arduino Connector Arduino Connector R7 1K LED7 Header 10X1_Female Header 8X1_Female_samtec PWR Ok LED1 R6 RESET LED2 LED6 PA5 PA6 PA7 PB6 PC7 PA9 R5 D13 D12 D11 D10 D9 D8 LED3 LED5 ST3 ST4 ST5 ST6 ST7 ST8 10 9 8 7 6 5 4 3 2 1 R4 SPI_SCLK SPI_MISO SPI_MOSI SPI_BSS LED4 CN5 LED4 PB8 PB9 R3 D15 D14 LED3 ST1 ST2 R2 C1 2µ2 1 2 3 4 5 6 7 8 I2C_SCL I2C_SDA Arduino Connector Arduino Connector CN6 LED2 VBUS R1 3V3 +5V VBUS LED1 UM3506 - Rev 1 4 Header 8X1_Female_samtec SPI_BSS SPI_MOSI SPI_SCLK SPI_IRQ SPI_MISO RESET I2C_SDA I2C_SCL SPI_BSS SPI_MOSI SPI_SCLK SPI_IRQ SPI_MISO RESET I2C_SDA I2C_SCL UM3506 Schematic diagrams page 7/18 SPI_SCLK R10 SPI_IRQ SPI_MISO R12 0R 0R R11 0R RESET R13 NC I2C_SDA R14 0R MOSI_300 MISO_300 18k TP2 NC GND GND TAD2_300 NC R15 0R TP3 NC TAD2 NC TAD1_300 RESET_300 R17 330k GND IRQ_300 MISO_300 BSS_300 MOSI_300 SCLK_300 RESET_300 XTI XTO VDD_IO C2 100nF GND GND VDD_IO IRQ MISO BSS MOSI SCLK RESET XTI XTO VDD_IO Crystal circuit V_RF L1 0R 1 2 30 31 32 29 26 27 3 XTI XTO VDD C3 1µ C4 10n C5 2µ2 RFI2 CE_GPIO2 RFO2 RFO1 CE_GPIO1 HF Reader IC RFI1 TAD2 TAD1 ST25 R300 Y1 C6 12p C7 12p GND GND GND GND GND RFI1 RFI2 NC GND 13 19 5 20 23 18 4 3 VDD VDD_TX VDD_D VDD_A AGD VDD_DR COM_2 COM_1 TP4 TP5 U1 ST25R300 22 9 16 14 6 21 12 11 RFI2 RFI1 TAD2 TAD1 RFI2 CE_GPIO2 RFO2 RFO1 CE_GPIO1 RFI1 TAD2 TAD1 GND_D NC GND NC GND NC GND NC GND GND_GPIO GND_A VSS (E.P.) VSS GND_DR GND_1 GND_2 6 3V3 0R VDD VDD VDD_D VDD_A AGD VDD_DR X1 435151014845 GND P2 1 TP6 5 NO_2 NO_1 Antenna Connection 1 TAD1 GND 2 1 R23 TP1 NC RESET_300 R16 1k VBUS P1 IRQ_300 Reset circuit 3V3 R18 NC SCLK_300 0R 0R I2C_SCL ST25R300 HF Reader BSS_300 R9 2 R8 SPI_MOSI 2 SPI_BSS 4 8 24 17 10 7 25 33 28 15 UM3506 - Rev 1 Figure 4. X-NUCLEO-NFC12A1 circuit schematic (2 of 3) VDD_IO VDD_DR AGD VDD_D VDD_A VDD GND VDD_TX VDD_IO VDD C8 100nF C9 2µ2 VDD_D VDD_A AGD VDD_DR TP7 TP8 TP9 TP10 TP11 TP12 NC NC NC NC NC NC TP13 TP14 NC NC TP15 TP16 NC NC GND GND GND C10 10n GND C11 2µ2 GND C12 10n GND C13 2µ2 GND C14 10n GND C15 1µ GND C16 10n GND C17 47n GND UM3506 Schematic diagrams page 8/18 UM3506 - Rev 1 Figure 5. X-NUCLEO-NFC12A1 circuit schematic (3 of 3) ANT2 C19 NC C18 NC Q1 NC CE_GPIO1_AAT CE_GPIO2_AAT GND CE_GPIO1 L2 RFO1 C25 150p NC C23 68p C26 2R2 RFO2 CE_GPIO2 C28 130p GND C33 NC C35 C31 130p C32 NC ANT1 120nH CE_GPIO2 0R 2 GND 1 68p GND R24 C29 NC GND C30 330p GND Q4 NC R19 ANT2 C27 330p L3 GND C21 NC C24 10p 120nH 1 2 J1 NC GND 3 CE_GPIO1 Q3 NC TAD2 C22 150p RFI1 Q2 NC TAD1 C20 NC ANT1 ANT_NFC06 R20 2R2 C34 150p C36 10p RFI2 C37 150p ANT1 TAD1 TAD2 TAD1 CE_GPIO1_AAT TAD2 C39 NC C38 NC GND Q5 NC CE_GPIO2_AAT Q6 NC TAD1 C40 NC Q7 NC TAD2 CE_GPIO1 CE_GPIO2 NC 0R R21 0R R22 NC CE_GPIO1_AAT CE_GPIO2_AAT GND GND GND C41 NC Q8 NC GND UM3506 Schematic diagrams page 9/18 UM3506 Bill of materials 5 Bill of materials Table 3. X-NUCLEO-NFC12A1 bill of materials Item UM3506 - Rev 1 Q.ty Ref. Part/Value Description Manufacturer Order code 1 5 C1, C5, C9, C11, C13 2u2 2u2_X5R Murata GRM155R60J225ME01D 2 2 C2, C8 100n 100n_X7R Murata GCM155R71H104KE02J 3 2 C3, C15 1u 1u_X5R MURATA GRM155R61C105KA12D 4 5 C4, C10, C12, C14, C16 10n 10n_x7R AVX 04023C103KAT2A 5 2 C6, C7 12p 12p_COG Murata GCM1555C1H120FA16D 6 1 C17 47n 47n_X7R Murata GCM155R71E473KA55D 7 2 C18, C38 6p8 6.8p_COG Murata GCM1555C1H6R8BA16D 8 2 C19, C39 12p 12p_COG Murata GCM1555C1H120FA16D 9 2 C20, C40 27p 27p_COG Murata GCM1555C1H270FA16D 10 2 C21, C41 68p 68p_COG Murata GRT1555C1H680FA02J 11 2 C22, C37 150p 150p_COG Murata GCM1555C1H151FA16D 12 2 C23, C35 100p 100p_COG Murata GCM1885C2A101FA16D 13 2 C24, C36 10p 10p_COG Murata GCM1555C1H100FA16D 14 2 C25, C34 150p 150p_COG KEMET C0603C151F5GACTU 15 2 C26, C33 68p 68p_COG KEMET C0603C680F1GACTU 16 2 C27, C30 330p 330p_COG YAGEO CC0603FRNPO9BN331 17 2 C28, C31 130p 130p_COG KEMET C0603C131F5GACTU 18 2 C29, C32 6p8 6.8p_COG KEMET C0603C689J5GACTU 19 1 CN5 Header, 10-Pin, Single row,female Samtec SSQ-110-03-L-S 20 2 CN6, CN9 Header, 8-Pin, Single row,female Samtec SSQ-108-03-L-S 21 1 CN8 Header, 6-Pin, Single row,female Samtec SSQ-106-03-L-S 22 1 L1 muRata BLM15EG121SH1D 23 2 L2, L3 LQW18CNR27J Murata 0ZD LQW18CNR12J0ZD 24 6 LED1, LED2, LED3, LED4, LED5, LED6 Lite-On LTST-C190TBKT 25 1 LED7 Lite-On LTST-C190KGKT 26 2 P1, P2 U.FL-R-SMT-1 HIROSE(HRS) U.FL-R-SMT-1(10) 27 8 Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8 nCh MOS Fet Diodes Incorporated BSS123WQ-7-F 28 7 R1, R2, R3, R4, R5, R6, R16 1k 1k, 0402 Panasonic ERJ2GEJ102X 29 1 R7 680R 680R, 0402 Yageo RC0402JR-07680RL page 10/18 UM3506 Bill of materials Item UM3506 - Rev 1 Q.ty Ref. Part/Value Description Manufacturer Order code 30 8 R8, R9, R10, R11, R12, R18, R23, R24 0R 0R, 0402 VISHAY CRCW04020000ZSTD 31 4 R21, R22, R14, R15 0R 0R, 0402 VISHAY CRCW04020000ZSTD 32 1 R13 18k 18k, 0402 MULTICOMP MCWR04X1802FTL 33 1 R17 330k 330k, 0402 VISHAY CRCW0402330KFKED 34 2 R19, R20 2R2 2R2, 0603 Vishay Dale CRCW06032R20FKEA 35 18 ST1, ST2, ST3, ST4, ST5, ST6, ST7, ST8, ST9, ST10, ST11, ST12, ST13, ST14, ST15, ST16, ST18, ST20 36 1 U1 ST ST25R300-AQET 37 1 X1 Tactile Switches Wurth WS-TASV Tact Elektronik Switch 435151014845 38 1 Y1 NX2016SA-27.1 2MHZ-EXS00A- NDK CS01188 CS01188-27.12M CONN HE14 2PTS MALE VERTICAL NOT FITTED ST25R300AQET QFN32 HF Reader IC QFN32 page 11/18 UM3506 Board versions 6 Board versions Table 4. X-NUCLEO-NFC12A1 versions PCB version Schematic diagrams Bill of materials XN$NFC12A1A (1) XN$NFC12A1A schematic diagrams XN$NFC12A1A bill of materials 1. This code identifies the X-NUCLEO-NFC12A1 expansion board first version. It is printed on the board PCB. UM3506 - Rev 1 page 12/18 UM3506 Regulatory compliance information 7 Regulatory compliance information Notice for US Federal Communication Commission (FCC) Part 15.19 This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Part 15.21 Any changes or modifications to this equipment not expressly approved by STMicroelectronics may cause harmful interference and void the user’s authority to operate this equipment. Part 15.105 This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: - Reorient or relocate the receiving antenna. - Increase the separation between the equipment and receiver. - Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. - Consult the dealer or an experienced radio/TV technician for help. Notice for Innovation, Science and Economic Development Canada (ISED) FCC ID: YCPNFC12A1 This device complies with Innovation, Science and Economic Development Canada's license-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation. This device contains license-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s license-exempt RSS(s). Operation is subject to the following two conditions: (1) This device may not cause interference. (2) This device must accept any interference, including interference that may cause undesired operation of the device. L’émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux CNR d’Innovation, Sciences et Développement économique Canada applicables aux appareils radio exempts de licence. L’exploitation est autorisée aux deux conditions suivantes: 1) L’appareil ne doit pas produire de brouillage; 2) L’appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d’en compromettre le fonctionnement. Notice for the European Union The X-NUCLEO-NFC12A1 is in conformity with the essential requirements of the Directive 2014/53/EU (RED) and of the Directive 2015/863/EU (RoHS). Applied harmonized standards are listed in the EU Declaration of Conformity. Notice for United Kingdom The X-NUCLEO-NFC12A1 is in compliance with the UK Radio Equipment Regulations 2017 (UK SI 2017 No. 1206 and amendments) and with the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012 (UK SI 2012 No. 3032 and amendments). Applied standards are listed in the UK Declaration of Conformity. UM3506 - Rev 1 page 13/18 UM3506 Revision history Table 5. Document revision history UM3506 - Rev 1 Date Revision 29-Apr-2025 1 Changes Initial release. page 14/18 UM3506 Contents Contents 1 Getting started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 1.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.2 Board connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.3 Hardware requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 1.4 System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2 Board setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 3 Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 3.1 Host interface and GPIO connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3.2 X-NUCLEO-NFC12A1 expansion board component placement . . . . . . . . . . . . . . . . . . . . . . . . 5 3.3 ST25R300 device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 4 Schematic diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5 Bill of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10 6 Board versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 7 Regulatory compliance information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 List of tables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 List of figures. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 UM3506 - Rev 1 page 15/18 UM3506 List of tables List of tables Table 1. Table 2. Table 3. Table 4. Table 5. Interconnections between the X-NUCLEO-NFC12A1 expansion board and the NUCLEO-L476RG board (left side) 4 Interconnections between the X-NUCLEO-NFC12A1 expansion board and the NUCLEO-L476RG board (right side) ................................................................................ 4 X-NUCLEO-NFC12A1 bill of materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 X-NUCLEO-NFC12A1 versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 UM3506 - Rev 1 page 16/18 UM3506 List of figures List of figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. UM3506 - Rev 1 X-NUCLEO-NFC12A1 expansion board. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 X-NUCLEO-NFC12A1 component placement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 X-NUCLEO-NFC12A1 circuit schematic (1 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 X-NUCLEO-NFC12A1 circuit schematic (2 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 X-NUCLEO-NFC12A1 circuit schematic (3 of 3) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 page 17/18 UM3506 IMPORTANT NOTICE – READ CAREFULLY STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgment. Purchasers are solely responsible for the choice, selection, and use of ST products and ST assumes no liability for application assistance or the design of purchasers’ products. No license, express or implied, to any intellectual property right is granted by ST herein. Resale of ST products with provisions different from the information set forth herein shall void any warranty granted by ST for such product. ST and the ST logo are trademarks of ST. For additional information about ST trademarks, refer to www.st.com/trademarks. All other product or service names are the property of their respective owners. Information in this document supersedes and replaces information previously supplied in any prior versions of this document. © 2025 STMicroelectronics – All rights reserved UM3506 - Rev 1 page 18/18 ">
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Key features
Supports NFC Forum tag types in reader mode
Compatible with STM32 and STM8 Nucleos
On-board ST25R300 NFC card reader
Arduino® UNO R3 connector
Integrated inductive antenna
NFC-A, NFC-B, NFC-F, and NFC-V poller and listener
Frequently asked questions
It is an NFC card reader expansion board based on the ST25R300 device.
It supports all five NFC Forum tag types in reader mode.
STM32 and STM8 Nucleos.
ISO/IEC 14443 type A and B, ISO/IEC 15693, and ISO/IEC 18092.
Integrated HF reader/NFC initiator/NFC target IC with an antenna etched on the PCB and the related tuning circuit.