STEVAL-ST25R3916B High Performance NFC Universal Device and Emvco Reader Owner’s Manual
- June 11, 2024
- ST
Table of Contents
ST25R3916B High Performance NFC Universal Device and Emvco Reader
Owner’s Manual
Introduction
The STEVAL25R3916B is a ready-to-use kit based on the ST25R3916B high-performance NFC universal device for contactless applications. The kit allows evaluating this device features and functionality in the reader/writer, peer to peer, and card emulation modes. The kit consists of:
- a microprocessor main board (STEVAL-M25R16B), which includes hardware and software tools that enable using the entire STM32 ecosystem. This board is powered through USB connectors
- a reader expansion board (STEVAL-D25R16B), which embeds the ST25R3916B device and an antenna etched on the PCB with its tuning circuit
The communication link between the two boards is the SPI bus. The processor
card provides the power. Specific data lines complete the pin connector
assignment shared between the cards.
Thanks to several demonstrations that can be performed, this kit helps the
users develop and test their applications. The kit is FCC certified, with FCC
ID: YCPR3916BD1. It is also IC certified, with IC: 8976A-R3916BD1; PMN:
STEVAL-25R3916B; HVIN: STEVAL-25R3916B.
Features
- NFC card reader IC: ST25R3916B
- 13.56 MHz inductive antenna etched on PCB and associated tuning circuit
- ISO18092 (NFCIP-1) active and passive initiator and target modes
- NFC Forum NFC-A, NFC-B, NFC-F, and NFC-V reader
- ISO14443A, ISO 14443B, and ISO15693 reader
- FeliCa™ reader
- Support for all five NFC Forum Tag types in reader mode
- Power output 42 dBμA/m @10 m (maximum power according to ETSI EN 300 V2.1.1)
- NFC Forum Type 3 tag (NFC-F) host card emulation
- NFC Forum Type 4A tag (NFC-A) host card emulation
- Transparent and stream modes to implement MIFARE™ classic compliant or other custom protocols
- Integrated inductive sensing system for low-power detection of a tag presence using phase or amplitude measurement
- High output power
- User selectable and automatic gain control
- Serial peripheral interface (SPI) up to 10 Mb/s
- I²C with up to 400 Kbit/s in fast mode, 1 Mb/s in fast mode plus
- Automatic antenna tuning (AAT) via a variable capacitor
Hardware overview
The main board PCB is usually connected to the PC via USB.
The STM32 MCU firmware controls the
ST25R3916B
via the extension connectors.
The 5 V supply of the USB bus powers both boards. An LDO converts this voltage
down to 3.3 V to supply the microcontroller and the
ST25R3916B.
For the reader expansion board, you can select a 3.3 or 5 V RF powering. A
green LED close to the motherboard micro-USB plug indicates when the board is
powered.
2.1 Main board hardware
The STEVAL-25R3916B main board embeds a 32-bit microcontroller of
the STM32L476 series, which is based on the Arm Cortex-M4 high-performance CPU
with FPU. This board is powered through the USB bus. It includes:
- an ST-LINK in-circuit debugger and programmer for STM32 microcontrollers
- push buttons (reset and user)
- a mini-USB debug connector
- a user-dedicated micro-USB connector
- support for ST NFC tag
Table 1. Powering options
Reference | Connector | Position | Description |
---|---|---|---|
1 | JP13 | Closed 1-2 | Card powered by USB |
2 | JP14 | Closed 2-3 | Card powered by micro-USB |
3 | JP15 | Open | [STEVAL-25R3916B](https://www.st.com/en/product/STEVAL- |
25R3916B?ecmp=tt9470_gl_link_feb2019&rt=um&id=UM3033) board powering (specific
feature)
4| JP16| Open| Card powered by an external source
Figure 3. STEVAL-25R3916B main board layout (top view)
- Software bus (ST-LINK)
- ST-LINK activity LED
- Reset button
- User button
- User LED
- Extension connectors
- On-going tag detection indicator
- Extension connector – GPIO setting
- Joystick
- Wi-Fi reset button
- Wi-Fi software update
- Power 3.3 V LED
- Wi-Fi status LED
- Powering options
- User USB
- ST-LINK USB
Figure 4. STEVAL-25R3916B main board layout (bottom view)
- STM32L476 MCU
- Test points for external connections
- Room for Wi-Fi module
- Regulator
- STM32 ST-LINK
- Room for Bluetooth® Low Energy module
2.1.1 Jumper
default configuration
The STEVAL-25R3916B jumpers are configured
by default to power the kit through the micro-USB connector.
Table 2. Jumper
default configuration
Connector | Position | Description |
---|---|---|
JP2 | Closed 1-2 | [ST-LINK ](https://www.st.com/en/product/st- |
link?ecmp=tt9470_gl_link_feb2019&rt=um&id=UM3033)UART debug features
JP3
JP10
JP13| Card powered by USB
JP14| Closed 2-3| Card powered by micro-USB
JP16| Closed 1-2| Board powering specific feature
2.1.2 Software development configuration
This section describes the software development configuration for the main
board. It also describes the USB connection when using the embedded ST-LINK.
The J1 micro-USB connector powers the STEVAL-25R3916B.
The J2 mini-USB allows exchanging data between the board and the computer.
2.2 Expansion board hardware
The STEVAL-25R3916B reader expansion board
embeds:
- ST25R3916B
- an antenna, with its own tuning circuit, etched on the PCB
- a switch to select 3.3 V or 5 V RF powering
The ST25R3916B is
directly connected to the filtered 5 V USB supply.
There are additional supply filtering components close to the NFC/HF reader
IC. All the decoupling capacitors have been placed as close as possible to the
ST25R3916B.
To connect another reader PCB via SPI, remove the serial resistors and use
CN100. By default, the SPI is the firmware and hardware access bus.
Use the I²C bus, instead, by changing J200, J201, J202, J203, J204, and J205.
J206 allows bypassing the internal VDD_RF/VDD_AM regulators to supply an
output current higher than 350 mA.
Figure 7. STEVAL-25R3916B expansion board layout (top view)
- RF front-end area
- ST25R3916B
- RF powering selection switch (3.3 or 5 V)
2.2.1 Antenna and matching network components
This board contains the matching network and the automatic antenna tuning
capacitors based on varicap.
Getting started
3.1 System requirements
- A micro-USB cable
- A USB port capable of delivering at least 400 mA at 5 V (2 W)
- A safety extra-low voltage (SELV) limited power source to supply the unit through the USB port
- A mini-USB cable to use the embedded ST-LINK and the STM32 ecosystem development
3.2 How to use the kit in standalone mode
Step 1. Connect the STEVAL-25R3916B main board to the reader expansion
board.
Important: It must be used on a clean and non-flammable surface.
Step 2. The kit is delivered with the default jumper configuration. Power
it through the micro-USB via a cable connected to the power source.
Step 3. Supply the unit through a safety extra-low voltage (SELV) limited
power source via the USB port.
The source must not exceed 60 VDC/8 A/100 V.
When powered up, the microcontroller starts the firmware, which is already
downloaded in the flash memory. This allows demonstrating the ST25R3916B
features:
– reader and writer
– card emulation
– peer to peer
– automatic antenna tuning
– USB mode (refer to the next section for further details)
3.3 How to use the kit in USB mode
Step 1. Connect the STEVAL-25R3916B kit to a PC via a micro-USB cable.
Important: It must be used on a clean and non-flammable surface.
The PC USB port must be capable of delivering at least 250 mA at 5 V.
Step 2. To control the board, download the STSW-ST25R010 software and
install it.
Schematic diagrams
Bill of materials
Table 3. STEVAL-VOICE-UI bill of materials
Item| Q.ty| Ref.| Part/Value| Description|
ManµFacturer| Order code
---|---|---|---|---|---|---
1| 1| Table 4. STEV AL$M25R16B A| –| Main board| ST| Not available for
separate sale
2| 1| Table 5. STEV AL$D25R16B A| –| Reader expansion board| ST| Not available
for separate sale
Table 4. Main board bill of materials
Item| Quantity| Ref.| Part/value| Description|
Manufacturer| Order code
---|---|---|---|---|---|---
1| 6| C1, C10, C13, C17, C41, C56| 1uF 25V ±10%
X5R 0603
| CAPACITOR| Any| Any
2| 1| C2| 2.2uF 16V ±10% X7R 1206| CAPACITOR| Any| Any
3| 1| C3| 10nF 16V ±10% X7R 0402| CAPACITOR| Any| Any
4| 30| C4, C5, C6, C7, C8, C11, C12, C14, C15, C16, C19, C22, C23, C24, C25,
C26, C27, C28, C31, C35, C36, C38, C42, C43, C44, C45, C46, C47, C50, C51|
100nF 16V ±10% X7R 0402| CAPACITOR| Any| Any
5| 6| C9, C37, C48, C49, C54, C55| 10uF 25V ±10%
X7R 0603
| CAPACITOR| Any| Any
6| 2| C18, C33| 4.7nF 50V ±5% NPO 0402| CAPACITOR| Any| Any
7| 4| C20, C21, C30, C32| 10pF 50V ±5% NPO 0402| CAPACITOR| Any| Any
8| 1| C29| 20pF 0402 NOT FITTED| CAPACITOR| Any| Any
9| 1| C34| 4.7uF 25V ±10% X7R 0603| CAPACITOR| Any| Any
10| 2| C39, C40| 100nF 0402 NOT FITTED| CAPACITOR| Any| Any
11| 2| C52, C53| 4.7pF ±0.25pF 50V NPO 0402| CAPACITOR| Any| Any
12| 5| D1, D2, D3, D4, D5| BAT60JFILM, SOD323| 10 V general purpose signal
Schottky diode| ST|
BAT60JFILM
13| 1| J1| | MICRO USB| MOLEX| AB 47590-0001
14| 1| J2| | MINI USB B| NELTRON| 5075BMR-05-SM
15| 1| J4| | CONNECTOR| SAMTEC| SSW-114-02-G-S-RA
16| 2| J5, J6| | CONNECTOR| SAMTEC| SSW-105-02-G-S-RA
17| 6| JP1, JP2, JP3, JP10, JP13, JP15| | CONNECTOR 1x2Pts| SAMTEC|
TSW-102-07-G-S
Item| Quantity| Ref.| Part/value| Description|
Manufacturer| Order code
---|---|---|---|---|---|---
18| 1| JP4| | CONNECTOR 1x4Pts| SAMTEC| TSW-104-07-G-S
19| 1| JP5| | CONNECTOR NOT FITTED| SAMTEC| TSW-105-07-G-S
20| 4| JP6, JP7, JP8, JP9| | CONNECTOR 1Pt| SAMTEC| TSW-101-07-G-S
21| 1| JP11| | CONNECTOR 2x4Pts| SAMTEC| TSW-104-07-G-D
22| 1| JP12| | CONNECTOR| SAMTEC| CES-107-01-L-D
23| 1| JP14| | CONNECTOR 1x3Pts & 1x1PT| SAMTEC| TSW-1xx-07-G-S
24| 1| JP16| | CONNECTOR 1x3Pts| SAMTEC| TSW-103-07-G-S
25| 2| L1, L3| | EMI FERRITE BEAD 600 Ohms| WURTH| 742792042
26| 3| L2, L6, L8| | COMMON MODE FILTER| WURTH| 744232090
27| 2| L4, L7| | EMI FERRITE BEAD 300 Ohms| WURTH| 742792641
28| 1| L5| | FERRITE CHIP BEAD| TAI TECH| FCM1608KF-601T03
29| 1| L9| | SELF| MURATA| BLM18EG471SN1D
30| 1| LCD1| | LCD MODULE| SHENZHEN FRIDA| FRD240C48004-A-RT
31| 1| LD1| | Green LED| EVERLIGHT| 19-21SYGC/S530-E1/TR8
32| 1| LD2| | Yellow LED| VISHAY| TLMY1000-GS08
33| 1| LD3| | Orange LED| EVERLIGHT| 19-217/S2C-AM2N2VY/3T
34| 1| LD4| | Bicolor LED| AVAGO| HSMF-A201-A00J1
35| 3| LD6, LD7, LD8| | Green LED NOT FITTED| EVERLIGHT| 19-21SYGC/S530-E1/TR8
36| 5| PEG1, PEG2, PEG3, PEG4, PEG5| | SELF ADHESIVE RUBBER BUMPER| 3M| SJ5306
37| 1| Q1| SOT23| Transistor| UNISONIC TECH.| MMBT9013L-G-AE3
38| 1| Q2| STR2P3LLH6, SOT-23| P-Channel 30 V, 0.048 Ohm typ., 2 A STripFET H6
power MOSFET in a SOT-23 package| ST|
STR2P3LLH6
Item| Quantity| Ref.| Part/value| Description|
Manufacturer| Order code
---|---|---|---|---|---|---
39| 27| R1, R3, R9, R12, R13, R14, R15, R20, R21, R23, R27, R41, R42, R46,
R47, R49, R50, R53, R54, R56, R71, R72, R77, R78, R86, R104, R113| 0R 0402|
RESISTOR| Any| Any
40| 2| R2, R110| 510R ±1% 0402| RESISTOR| Any| Any
41| 18| R4, R25, R33, R39, R43, R48, R51, R52, R62, R65, R67, R70, R74, R75,
R83, R97, R109, R122| 0402| RESISTOR NOT FITTED| Any| Any
42| 5| R5, R7, R36, R37, R103| 10R ±1% 0402| RESISTOR| Any| Any
43| 1| R6| 47R ±1% 0402| RESISTOR| Any| Any
44| 6| R8, R40, R118, R119, R120, R121| 0R 0402| RESISTOR NOT FITTED| Any| Any
45| 2| R10, R38| 1M ±1% 0402| RESISTOR| Any| Any
46| 1| R11| 360R ±1% 0402| RESISTOR| Any| Any
47| 6| R16, R105, R106, R107, R108, R114| 1K5 ±1% 0402| RESISTOR| Any| Any
49| 16| R18, R24, R26, R63, R64, R66, R68, R69, R73, R76, R79, R80, R81, R82,
R89, R112| | RESISTOR 4K7 1% 0402| Any| Any
48| 4| R17, R90, R91, R93| 680R ±1% 0402| RESISTOR| Any| Any
50| 4| R19, R28, R30, R117| 100R ±1% 0402| RESISTOR| Any| Any
51| 1| R22| 4.3 Ohms ±1% 0402| RESISTOR| Any| Any
52| 1| R29| 100R 0402| RESISTOR NOT FITTED| Any| Any
53| 8| R31, R32, R35, R55, R84, R85, R87, R88| 100K ±1% 0402| RESISTOR| Any|
Any
55| 2| R44, R96| | RESISTOR 47K 1% 0402| Any| Any
54| 9| R34, R94, R95, R98, R99, R100, R101, R102, R115| 10K ±1% 0402|
RESISTOR| Any| Any
56| 1| R45| 15K ±1% 0402| RESISTOR| Any| Any
57| 5| R57, R58, R59, R60, R61| 220R ±1% 0402| RESISTOR| Any| Any
Item| Quantity| Ref.| Part/value| Description|
Manufacturer| Order code
---|---|---|---|---|---|---
58| 1| R92| 4K7 ±1% 0402| RESISTORNOT FITTED| Any| Any
59| 1| R111| 2K7 ±1% 0402| RESISTOR| Any| Any
60| 1| R116| 36K ±1% 0402| RESISTOR| Any| Any
61| 14| SB1, SB2, SB3, SB4, SB5, SB6, SB7, SB8, SB9, SB10, SB11, SB12, SB13,
SB14| 0603| SOLDER BRIDGE OPEN SIZE| Any| Any
62| 1| SW1| | BLUE PUSH BUTTON| WEALTHMETA L| TD-0341X
63| 1| SW2| | BLACK PUSH BUTTON| WEALTHMETA L| TD-0341X
64| 1| SW3| | BLACK PUSH BUTTON NOT FITTED| WEALTHMETA L| TD-0341X
65| 1| SW4| | JOYSTICK| WEALTHMETA L| MT-008A
66| 5| TP1, TP2, TP3, TP4, TP5| HOLE DIAM.
1.0mm
| PLATED TEST POINT| Any| Any
67| 17| TP6, TP7, TP8, TP9, TP10, TP11, TP12, TP13, TP14, TP17, TP18, TP19,
TP20, TP21, TP22, TP23, TP26| COPPER LAND DIAM. 0.8mm| TEST POINT| Any| Any
68| 1| U1| LD39050PUR, DFN6 3×3| 500 mA low quiescent current and low noise
voltage regulator| ST|
LD39050PUR
69| 1| U2| STM32L476VG T6, LQFP 100 14x14x1.4 mm| IC| ST|
STM32L476VGT6
70| 1| U3| | DIGITAL POT| ANALOG DEV.| AD5112BCPZ10
71| 1| U4| VSSOP8| LEVEL SHIFTER| TEXAS| SN74LVC2T45DCUT
72| 1| U5| STM32F103CB T6, LQFP 48 7x7x1.4 mm| Mainstream performance line,
Arm Cortex-M3 MCU with 128 Kbytes of Flash memory, 72 MHz CPU, motor control,
USB, and CAN| ST|
STM32F103CBT6
73| 1| U7| | Wi-Fi module NOT FITTED| ST| SPWF01SA.11
74| 1| U8| | Bluetooth ® Low Energy module NOT FITTED| ST| SPBTLE-RF
Item| Quantity| Ref.| Part/value| Description|
Manufacturer| Order code
---|---|---|---|---|---|---
75| 2| Y1, Y2| | SMD CRYSTAL| NDK| NX3225GD-8MHZ-EXS00A- CG04874
76| 1| Y3| | SMD CRYSTAL| NDK| NX3215SA 32.768KHZ
Table 5. Reader expansion board bill of materials
Item| Q.ty| Ref.| Part/value| Description|
Manufacturer| Order code
---|---|---|---|---|---|---
1| 6| C100, C205, C207, C212, C214, C216| 2.2µF_0402_X5 R| Capacitors| MURATA|
GRM155R60J225ME15D
2| 1| C200| 1µF_0402_X5R| Capacitor| MURATA| GRM155R61C105KA12D
3| 7| C201, C204, C206, C208, C211, C213, C215| 10nF_0402| Capacitors| AVX|
04023C103KAT2A
4| 1| C202| 22nF_0402| Capacitor| AVX| 0402YC223KAT2A
5| 1| C203| 2.2µF_0402_N C| Capacitor not assembled| MURATA|
GRM155R60J225ME15D NOT FITTED
6| 1| C209| 10nF| Capacitor not assembled| AVX| 04023C103KAT2A NOT FITTED
7| 1| C210| 2.2µF| Capacitor not assembled| MURATA| GRM155R60J225ME15D NOT
FITTED
8| 2| C217, C218| 10pF_0402| Capacitors| MURATA| GRM1555C1H100GA01D
9| 2| C300, C317| 120pF_0603| Capacitors| MURATA| GRM1885C1H121GA01D
10| 2| C301, C316| 10pF_0603| Capacitors| MULTICOMP| MC0603N100F500CT
11| 3| C302, C308, C315| | Capacitors| MURATA| LXRW0YV201-059
12| 2| C303, C314| 47pF_0603| Capacitors| MURATA| GRM1885C1H470FA01D
13| 2| C305, C313| 220pF_0402| Capacitors| MURATA| GRM1555C1H221FA01D
14| 2| C306, C311| 680p_COG| Capacitors| MURATA| GRM1885C1H681GA01D
15| 2| C307, C312| 82pF_0603| Capacitors| MURATA| GRM1885C1H820FA01D
16| 1| D300| | Diode| DIODES INC| BAV70W
17| 2| J100, J102| 5 pin| Male single row horizontal| Samtec|
TSW-105-08-G-S-NA
18| 1| J101| 14 pin| Male single row horizontal| Samtec| TSW-114-08-G-S-NA
19| 15| J201, J204, J205, J207, J300, J303, J304, J305, R204, R205, R206,
R207, R208, R209, R210| 0R_0402| Resistors| Multicomp| MC00625W040210R
20| 1| J302| HE14 2PTS| Male single row horizontal not fitted| Any| Any
21| 2| L300, L301| | Fixed inductor| TDK| MLJ1608WR27JT000
22| 2| LED100, LED101| | LEDs| Lite-On| LTST-C190KGKT
Item| Q.ty| Ref.| Part/value| Description|
Manufacturer| Order code
---|---|---|---|---|---|---
23| 4| P100, P101, P102, P103| | Connectors| Samtec| SJ5303TRANS
24| 4| P200, P201, P202, P203| | Connectors| HIROSE(HRS)| U.FL-R-SMT-1(10)
25| 1| Q300| | 30 V, 400 mA N-channel trench MOSFET| NEXPERIA| NX3008NBK
26| 1| R100| 1k, 0402| Resistor| Panasonic| ERJ2GEJ102X
27| 1| R101| 680R, 0402| Resistor| Yageo| RC0402JR-07680RL
28| 2| R201, R202| 1k65, 0402| Resistors| MULTICOMP| MC00625W040211K65
29| 2| R300, R301| 2R2, 0603| Resistors| Vishay Dale| CRCW06032R20FKEA
30| 1| R302| 100R_0402| Resistor| MULTI SOURCES| RESISTOR 0402 100R
31| 1| R303| 47K_0402| Resistor| MULTI SOURCES| RESISTOR 0402 47K
32| 1| S100| | Switch| C & K COMPONENTS| PCM12SMTR
33| 1| U200| ST25R3916B- AQWT, VFQFPN 5X5X1 32L WETTABLE FLANKS| NFC reader
for payment, consumer, and industrial| ST| ST25R3916B-
AQWT
34| 1| Y200| | Crystal| NDK| NX2016SA STD-CZS-5 27.12MHz
Kit versions
Table 6. STEVAL-ST25R3916B versions
PCB version | Schematic diagrams | Bill of materials |
---|
The evaluation kit with order code STEVAL-ST25R3916B contains the
STEVAL$M25R16BA main board plus the STEVAL$D25R16BA reader expansion board
(1)| STEVAL-ST25R3916B
schematic diagrams| STEVAL-ST25R3916B bill of
materials
1. These codes identify the first version of the boards contained in the kit. They are printed on the boards PCB.
Regulatory compliance information
Notice for US Federal Communication Commission (FCC)
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. Changes or
modifications not expressly approved by the manufacturer could void the user’s
authority to operate the equipment.
Note:
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.
Standard applied: FCC 47 CFR Part 15.225: April 2020
Notice for Innovation, Science and Economic Development Canada (ISED)
This device complies with Innovation, Science and Economic Development RSS
standards. 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. Changes or modifications not expressly approved by the manufacturer
could void the user’s authority to operate the equipment.
Notice for the European Union
The STEVAL-25R3916B 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 STEVAL-25R3916B 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 7. Document revision history
Date | Revision | Changes |
---|---|---|
20-Feb-2023 | 1 | Initial release. |
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Information in this document supersedes and replaces information previously
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© 2023 STMicroelectronics – All rights reserved
References
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