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UM3091
User manual
Getting started with the NFC card reader expansion board based on ST25R100 for STM32 Nucleos
Introduction
The X-NUCLEO-NFC09A1 NFC card reader expansion board is based on the ST25R100 device.
The expansion board supports ISO14443A/B and ISO15693.
The ST25R100 manages frame coding and decoding in reader mode for standard applications, such as NFC, proximity, and vicinity HF RFID standards. It supports ISO/IEC 14443 type A/B and ISO/IEC 15693 RF communication protocols as well as the detection, reading and writing of NFC Forum type 1, 2, 4, and 5 tags.
It embeds a low power wake-up system capable of detecting an approaching tag. It also features a low power RC oscillator and wake-up timer to wake up the device automatically after a selected time period and check for a tag presence.
Notice: For dedicated assistance, please submit a request through our online support portal at www.st.com/support.
Getting started
1.1 Overview
The X-NUCLEO-NFC09A1 expansion board features:
- On-board NFC card reader IC: ST25R100
- 47 mm x 34 mm, four-turn 13.56 MHz inductive antenna etched on PCB with a maximum emitted RF magnetic field of 42 dBµA/m @10 m, and associated tuning circuit
- RC low power wake-up
- Equipped with Arduino® UNO R3 connector
- Free comprehensive development firmware library compatible with STM32Cube and samples for ST25R100
- Scalable solution for multiple board cascade
- Six general-purpose LEDs
- CE, UKCA, FCC, ISED certified
- RoHS and WEEE compliant
1.2 Board connection
Connect the X-NUCLEO-NFC09A1 to an STM32 Nucleo-64 development board via Arduino® UNO R3 connectors.
The PC USB port has to be capable of 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 enable alternative connections of all lines (except the SPI) to the STM32 MCU.
The board is connected to a power supply or a PC. It should be used on a clean and non-flammable surface.
1.3 Hardware requirements
The X-NUCLEO-NFC09A1 expansion board is designed to be used with any STM32 Nucleo board, although complete testing has been performed using the NUCLEO-G071RB hosting the STM32G071RB microcontroller.
The STM32 Nucleo firmware and the related documentation are available at http://www.st.com/stm32nucleo.
1.4 System requirements
To use STM32 Nucleo boards with the X-NUCLEO-NFC09A1 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 Micro-B USB cable to connect the STM32 Nucleo board to the PC
- the unit must be supplied by a safety extra low voltage with falling characteristics (<5 V, <15 W), according to EN60950-1. This power supply has to be classified as ES1 (Electrical Source1), PS1 according to EN62368-1
To install the board firmware package (order code: X-CUBE-NFC9) the PC must have:
- 128 MB of RAM
- 40 MB of free hard disk space
The X-CUBE-NFC9 firmware and the related documentation are available at www.st.com.
Board setup
To set up the board:
Step 1. Connect the X-NUCLEO-NFC09A1 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 Micro-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.
Hardware
The X-NUCLEO-NFC09A1 expansion board allows the user to test the functionality of the ST25R100, which supports the reader/writer modes.
The ST25R100 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-NFC09A1 expansion board and the NUCLEO-G071RB board (left side)
| Signal | Connector | Pin number | NUCLEO-G071RB | X-NUCLEO-NFC09A1 |
| NC | CN6 Power | 1 | PD1 | – |
| IOREF | 2 | IOREF | (NC) | |
| RESET | 3 | NRST | – | |
| 3V3 | 4 | 3V3 | 3V3 (VDD_IO) | |
| 5V | 5 | 5V | 5V (VDD) | |
| GND | 6 | GND | GND | |
| GND | 7 | GND | GND | |
| VIN | 8 | VIN | – | |
| A0 | CN8 Power | 1 | PA0 | IRQ_MCU |
| A1 | 2 | PA1 | MCU_LED1 | |
| A2 | 3 | PA4 | MCU_LED2 | |
| A3 | 4 | PB1 | MCU_LED3 |
Table 2. Interconnections between the X-NUCLEO-NFC09A1 expansion board and the NUCLEO-G071RB board (right side)
| Signal | Connector | Pin number | NUCLEO-G071RB | X-NUCLEO-NFC09A1 |
| GND | CN5 Digital | 7 | GND | GND |
| D13 | 6 | PA5 | SCLK_MCU | |
| D12 | 5 | PA6 | MISO_MCU | |
| D11 | 4 | PA7 | MOSI_MCU | |
| D10 | 3 | PB0 | /SS_MCU | |
| D8 | 1 | PA9 | RESET | |
| D7 | CN9 Digital | 8 | PA8 | MCU_LED4 |
| D6 | 7 | PB10 | MCU_LED5 | |
| D5 | 6 | PB4 | MCU_LED6 |
3.1 Host interface and GPIO connection
The X-NUCLEO-NFC09A1 expansion board contains the ST25R100-CMET chip and is powered by the STM32 Nucleo board.
The ST25R100 is driven by the microcontroller via SPI interface.
The six LEDs indicate the detected RFID technology.
3.2 X-NUCLEO-NFC09A1 expansion board component placement
- General purpose LEDs
- ST25R100
- Matching circuit
- 47×34 mm four-turn antenna
3.3 ST25R100 device
The ST25R100 is a high performance NFC device that includes an advanced analog front end (AFE) and a highly integrated data framing system for:
- NFC-A/B (ISO 14443A/B) reader
- NFC-V (ISO 15693) reader up to 53 kbps
Special mode of the AFE and framing system can be used to implement other custom protocols such as MIFARE® classic.
Schematic diagrams
Bill of materials
Table 3. X-NUCLEO-NFC09A1 bill of materials
| Item | Q.ty | Ref. | Part/Value | Description | Manufacturer | Order code |
| 1 | 5 | C100, C203, C207, C209, C211 |
2.2 uF 0402 6.3 |
Multilayer Ceramic Capacitors MLCC – SMD/SMT 2.2UF 6.3V 20% 0402 | MURATA | GRM155R60J225ME15D |
| 2 | 2 | C200, C215 | 1.0 uF 0402 16 V 10 % | Multilayer Ceramic Capacitors MLCC – SMD/SMT 1.0UF 16V 10% 0402 | MURATA | GRM155R61C105KA12D |
| 3 | 6 | C201, C202, C206, C208, C210, C213 | 0.01 uF 0402 25 V 10 % | Multilayer Ceramic Capacitors MLCC – SMD/SMT 25V 0.01uF X7R 0402 10% | AVX | 04023C103KAT2A |
| 4 | 2 | C204, C205 | 10 p C0G 0402 50 V 1 % | Multilayer Ceramic Capacitors MLCC – SMD/SMT 10 p 50 V C0G 0402 | MURATA | GRM1555C1H100GA01D |
| 5 | 2 | C212, C216 | 0.1 uF 0402 10 V 10 % | Multilayer Ceramic Capacitors MLCC – SMD/SMT 0.1 uF 10 V X5R 0402 | MULTICOMP | MC0402X104K100CT |
| 6 | 1 | C214 | 4.7 uF 0402 10 V 20 % | Multilayer Ceramic Capacitors MLCC – SMD/SMT 4.7 uF 10 V X5R 0402 | MURATA | GRM155R61A475MEAA |
| 7 | 2 | C217, C218 | 5.6 pF C0G 0402 0.25 pF | Multilayer Ceramic Capacitors MLCC – SMD/SMT 5.6 PF 50V C0G 0.25pF 0402 | MURATA | GRM1555C1H5R6BA01D |
| 8 | 2 | C300, C313 | 150 pF 0603 50 V 2 % | Multilayer Ceramic Capacitors MLCC – SMD/SMT 150 pF 50 V C0G 0402 | MURATA | GRM1885C1H151GA01D |
| Item | Q.ty | Ref. | Part/Value | Description | Manufacturer | Order code |
| 9 | 2 | C301, C311 | 12 pF 0603 50 V 2 % | Multilayer Ceramic Capacitors MLCC – SMD/SMT 12 pF 50 V C0G 0603 (not mounted) | YAGEO | CQ0603GRNPO9BN120 |
| 10 | 2 | C302, C312 | 10 pF 0603 50 V 1 % | CERAMIC CAPACITOR 10PF 50V, C0G, 1%, 0603, | MULTICOMP | MC0603N100F500CT |
| 11 | 2 | C303, C310 | 47 pF 0603 50 V 2 % | Multilayer Ceramic Capacitors MLCC – SMD/SMT 47PF 50V 1% 0603 | MURATA | GCM1555C1H47FA16D |
| 12 | 2 | C304, C307 | 270 pF 0603 50 V 2 % | Multilayer Ceramic Capacitors MLCC – SMD/SMT 270 PF 50V C0G 2% 0603 | MURATA | GCM1555C1H271FA01D |
| 13 | 2 | C305, C308 | 12 pF 0603 50 V 2 % | Multilayer Ceramic Capacitors MLCC – SMD/SMT 12 PF 50V NP0 2% 0603 | MURATA | GRM1555C1H120GA01D |
| 14 | 2 | C306, C309 | 130 pF 0603 50 V 1 % | Multilayer Ceramic Capacitors MLCC – SMD/SMT 130 PF 50V NP0 1% 0603 | MURATA | GCM1555C1H131FA16D |
| 15 | 1 | CN5 | Header, 10-Pin, Single row,female | SAMTEC | SSQ-110-03-L-S | |
| 16 | 2 | CN6, CN9 | Header, 8-Pin, Single row,female | SAMTEC | SSQ-108-03-L-S | |
| 17 | 1 | CN8 | Header, 6-Pin, Single row,female | SAMTEC | SSQ-106-03-L-S | |
| 18 | 2 | J300, J304 | 0 Ohm 0402 0.1% | Thin Film Resistors 100mW ZEROohm Jumper | VISHAY | MCS04020Z0000ZE000 |
| 19 | 2 | J302, J303 | HE14 Male Vertical Single Row 2 pin 2.54MM (NOT MOUNTED) | MOLEX | 22-28-5020 | |
| 20 | 1 | L200 | 120 Ohm 0402 | Ferrite Beads 120 OHM 25% | MURATA | BLM15PD121SN1D |
| Item | Q.ty | Ref. | Part/Value | Description | Manufacturer | Order code |
| 21 | 2 | L300, L301 | 270 nH 0603 2 % | Fixed Inductors 0603 270nH Unshld 2% 300mOhms AEC-Q200 | COILCRAFT | 0603LS-271XGLB |
| 22 | 1 | LED100 | 0603 2V | Standard LEDs – SMD Green Clear 571nm |
LITE-ON | LTST-C190KGKT |
| 23 | 6 | LED101, LED102, LED103, LED104, LED105, LED106 | 0603 2V | Standard LEDs – SMD Blue Clear 470nm |
LITE-ON | LTST-C190TBKT |
| 24 | 2 | P200, P201 | RF Connectors / Coaxial Connectors U.FL RECEPTACLE SMT GLD M CONT REEL (NOT MOUNTED) | HIROSE(HRS) | U.FL-R-SMT(10) | |
| 25 | 1 | R100 | 680 Ohm 0402 5 % | Thick Film Resistors – SMD 680 Ohms 62.5mW 0402 5% | YAGEO | RC0402JR-07680RL |
| 26 | 6 | R101, R102, R103, R104, R105, R106 | 1K Ohm 0402 5% | Thick Film Resistors – SMD 0402 1Kohms 5% AEC-Q200 | PANASONIC | ERJ2GEJ102X |
| 27 | 6 | R108, R203, R204, R205, R206, R207 | 0 Ohm 0402 5% | Thin Film Resistors 100mW ZERO ohm | VISHAY | MCS04020Z0000ZE000 |
| 28 | 1 | R208 | 0.1 Ohm 0603 0.5 % | Current Sense Resistors – SMD 0.1 ohm 0603 0.5% 0.20W | OHMITE | KDV06DR100ET |
| 29 | 1 | R209 | 10k Ohm 0402 1% | Thick Film Resistors – SMD 10 kOhms 62.5 mW 0402 1% AEC-Q200 | YAGEO | AC0402FR-7W10KL |
| 30 | 1 | R210 | 330k Ohm 0402 1 % | Thin Film Resistors – SMD .1W 330Kohms .1% 0402 25ppm |
VISHAY | CRCW0402330KFKEDC |
| 31 | 2 | R211, R212 | 0 Ohm 0402 0.1% | Thin Film Resistors 100mW ZERO ohm (NOT MOUNTED) | VISHAY | MCS04020Z0000ZE000 |
| 32 | 2 | R300, R301 | 2.2 Ohm 0603 1% | Thick Film Resistors – SMD 2.2 Ohms 100 mW 0603 1% AEC-Q200 | YAGEO | AC0603FR-072R2L |
| Item | Q.ty | Ref. | Part/Value | Description | Manufacturer | Order code |
| 33 | 1 | R304 | 0 Ohm 0603 1% | Thick Film Resistors – SMD 0 Ohms 100mW 0603 1% AEC- Q200 | YAGEO | AC0603FR-070RL |
| 34 | 1 | S200 | Tactile Switches 3.5×2.9mm Right Ang Light Touch Switch (NOT MOUNTED) | PANASONIC | EVQ-P7C01P | |
| 35 | 11 | ST1, ST2, ST3, ST4, ST7, ST8, ST9, ST15, ST16, ST17, ST18 | CONN HE14 2PTS MALE VERTICAL (NOT MOUNTED) | TEST POINT | ||
| 36 | 6 | ST5, ST10, ST11, ST12, ST13, ST14 | CONN HE14 2PTS MALE VERTICAL (NOT MOUNTED) | TEST POINT | ||
| 37 | 1 | ST6 | CONN HE14 2PTS MALE VERTICAL (NOT MOUNTED) | TEST POINT | ||
| 38 | 2 | ST19, ST20 | CONN HE14 2PTS MALE VERTICAL (NOT MOUNTED) | TEST POINT | ||
| 39 | 1 | U200 | HF READER ST25R200 QFN24 | ST | ST25R100 | |
| 40 | 1 | Y200 | CRYSTAL 27.1200MHZ 10PF SMD | NDK AMERICA | NX2016SA-27.12MHZ- EXS00A-CS01188 |
Board versions
Table 4. X-NUCLEO-NFC09A1 versions
| PCB version | Schematic diagrams | Bill of materials |
| X$NUCLEO-NFC09A1 (1) | X$NUCLEO-NFC09A1 schematic diagrams | X$NUCLEO-NFC09A1 bill of materials |
- This code identifies the X-NUCLEO-NFC09A1 expansion board first version. It is printed on the board PCB.
Regulatory compliance information
Note: The evaluation kit with order code X-NUCLEO-NFC09A1 contains the board X$NUCLEO-NFC09A1 FCC certified, with FCC ID: YCPNFC09A1
IC certified, with IC: 8976A-NFC09A1; PMN: X-NUCLEO-NFC09A1; HVIN: X-NUCLEO-NFC09A1
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)
This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence 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. Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
This class B device complies with Canadian Interference-Causing Equipment Standard ICES-003: CAN ICES-003(B) / NMB-003(B)
Notice for the European Union
The kit X-NUCLEO-NFC09A1 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 the United Kingdom
The kit X-NUCLEO-NFC09A1 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.
Revision history
Table 5. Document revision history
| Date | Revision | Changes |
| 01-Oct-2024 | 1 | Initial release. |
| 25-Oct-2024 | 2 | Updated Section 1.1: Overview. |
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Information in this document supersedes and replaces information previously supplied in any prior versions of this document.
© 2024 STMicroelectronics – All rights reserved
UM3091 – Rev 2 – October 2024
For further information contact your local STMicroelectronics sales office.
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Documents / Resources
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STMicroelectronics UM3091 NFC Card Reader Expansion Board [pdf] User Manual UM3091, UM3091 NFC Card Reader Expansion Board, NFC Card Reader Expansion Board, Card Reader Expansion Board, Reader Expansion Board, Expansion Board, Board |