ST STEVAL-ST25R3916B User manual

Introduction
The STEVAL-25R3916B 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.
Figure 1. STEVAL-25R3916B kit (top view)
Getting started with the STEVAL-ST25R3916B kit based on the ST25R3916B
high-performance NFC universal device and EMVCo reader
UM3033
User manual
UM3033 - Rev 1 - February 2023
For further information contact your local STMicroelectronics sales office. www.st.com

1Features
• 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
UM3033
Features
UM3033 - Rev 1 page 2/34

2Hardware 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.
Figure 2. Hardware connection
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 board powering (specific feature)
4 JP16 Open Card powered by an external source
UM3033
Hardware overview
UM3033 - Rev 1 page 3/34

Figure 3. STEVAL-25R3916B main board layout (top view)
1. Software bus (ST-LINK)
2. ST-LINK activity LED
3. Reset button
4. User button
5. User LED
6. Extension connectors
7. On-going tag detection indicator
8. Extension connector - GPIO setting
9. Joystick
10. Wi-Fi reset button
11. Wi-Fi software update
12. Power 3.3 V LED
13. Wi-Fi status LED
14. Powering options
15. User USB
16. ST-LINK USB
1
234
5
6
7
8
9
10
11
12
13
14
15
16
UM3033
Main board hardware
UM3033 - Rev 1 page 4/34

Figure 4. STEVAL-25R3916B main board layout (bottom view)
1. STM32L476 MCU
2. Test points for external connections
3. Room for Wi-Fi module
4. Regulator
5. STM32 ST-LINK
6. Room for Bluetooth® Low Energy module
1
2
34
5
6
7
8
9
10
11
12
13
14
15
16
1
2.1.1 Jumper default configuration
The STEVAL-25R3916B jumpers are configured by default to power the kit through the micro-USB connector.
Figure 5. Jumper default configuration
UM3033
Main board hardware
UM3033 - Rev 1 page 5/34

Table 2. Jumper default configuration
Connector Position Description
JP2
Closed 1-2 ST-LINK UART debug featuresJP3
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.
Figure 6. Software development configuration
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.
UM3033
Expansion board hardware
UM3033 - Rev 1 page 6/34

Figure 7. STEVAL-25R3916B expansion board layout (top view)
1. RF front-end area
2. ST25R3916B
3. RF powering selection switch (3.3 or 5 V)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1
Figure 8. STEVAL-25R3916B expansion board layout (bottom view)
2.2.1 Antenna and matching network components
This board contains the matching network and the automatic antenna tuning capacitors based on varicap.
UM3033
Expansion board hardware
UM3033 - Rev 1 page 7/34

3Getting 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.
UM3033
Getting started
UM3033 - Rev 1 page 8/34

4Schematic diagrams
Figure 9. STEVAL-ST25R3916B main board circuit schematic (1 of 10)
TSCR_I2C_SCL
TSCR_I2C_SDA
TSCR_IRQ
SDA
RS
CSX
TE
WR
LCD_BKLGHT_MOS_GATE
NRST
U_LCD
LCD.SchDoc
U_Pwr Supply
Pwr Supply.SchDoc
SPARE
GPIO_1_IRQ
I2C_SCL
I2C_SDA
SPI_MOSI
SPI_MISO
SPI_CLK
SPI_CSn
UART_RX
UART_TX
UART_RTSn
UART_CTSn
MCU_CLK
GPO_3/INT_3
GPO_2/INT_2
TDO/SWO
TMS/SWDIO
U_ST25DX Connectors
ST25DX Connectors.SchDoc
RESET#
TCK_SWCLK
UART_TX
UART_RX
STLK_MCO
STL_USB_D_P
STL_USB_D_N
USB_RENUMn
U_STLink-Jtag
STLink-Jtag.SchDoc
TMS/SWDIO
TCK_SWCLK
TDO/SWO
BLE_SPI_IRQ
BLE_SPI_CSN
BLE_SPI_MOSI
BLE_SPI_MISO
BLE_SPI_CLK
BLE_RESET
WF_UART_TX
WF_UART_RX
WF_UART_RTS
WF_UART_CTS
WF_RESET
STLK_UART_TX
STLK_UART_RX
TSCR_I2C_SCL
TSCR_I2C_SDA
TSCR_IRQ
STLK_MCO
ST25DX_SPARE
ST25DX_IRQ
ST25DX_I2C_SCL
ST25DX_I2C_SDA
ST25DX_SPI_MOSI
ST25DX_SPI_MISO
ST25DX_SPI_CLK
ST25DX_SPI_CSn
TSCR_SPI_MOSI
TSCR_SPI_CSn
TSCR_SPI_CLK
RESET#
POT_I2C_SDA
POT_I2C_SCL
POT_IN
MCU_USB_D_N
MCU_USB_ID
MCU_USB_D_P
I_MEAS_OUT
TSCR_TE
TSCR_WR
LCD_BKLGHT_MOS_GATE
GPO_4/BS1
GPO_6/D/C
GPO_5/BUSY
GPO_7/CS1
GPO_8/RESET
TSCR_SPI_MISO
ST25DX_UART_RX
ST25DX_UART_TX
ST25DX_UART_RTSn
ST25DX_UART_CTSn
ST25DX_MCU_CLK
GPO_2/INT_2
GPO_3/INT_3
U_STM32L476
SPI_IRQ
STM32L476.SchDoc
SPI_CSN
SPI_MOSI
SPI_MISO
SPI_CLK
BLE_RESET
UART_TX
UART_RX
UART_RTS
UART_CTS
WF_RESET
U_WIFI-BLE
WIFI-BLE.SchDoc
POT_I2C_SDA
POT_I2C_SCL
POT_IN
I_MEAS_OUT
U_EH
EH.SchDoc
JP6
HE14
JP7
HE14
JP8
HE14
JP9
HE14
GND
GROUND PINS
STL_USB_D_N
MCU_USB_D_N
MCU_USB_D_P
STL_USB_D_P
MCU_USB_ID
USB_RENUMn
U_USB
USB.SchDoc
GPO_4/BS1
GPO_6/D/C
GPO_5/BUSY
GPO_7/CS1
TSCR_SPI_CLK
TSCR_SPI_MISO
GPO_8/RESET
TSCR_I2C_SDA
TSCR_I2C_SCL
TSCR_SPI_MOSI
TSCR_SPI_CSn
FX1
HOLES FOR DAUGHTER BOARD
U_E-Paper_Connector
E-Paper_Connector.SchDoc
FX2
PLATED/2.7mm-6.0mm
FX3
PLATED/2.7mm-6.0mm
FX4
PLATED/2.7mm-6.0mm
GND
PLATED/2.7mm-6.0mm
Fiducial Fiducial Fiducial
MIR1
Fiducial
MIR2 MIR3 MIR4
UM3033 - Rev 1 page 9/34
UM3033
Schematic diagrams

Figure 10. STEVAL-ST25R3916B main board circuit schematic (2 of 10)
VUSB_ST_LINK
D1
BAT60JFILM
D3
BAT60JFILM
D2
5V
BAT60JFILM
C1
1uF/25V C2 C3
2.2uF/16V
1
10nF
2
34L2
2
744232090
1L1
2
742792042
1L3
5V
742792042
GND_USB
R1
0R
R3
0R
R4
NC
GND
VCC
LD1
GREEN
R2
510R
GND_USB
C48
10uF/25V
3V3
PEG1
SJ5306
PEG2
SJ5306
PEG3
SJ5306
PEG4
SJ5306
R118
0R NC
R119
0R NC
R120
0R NC
R121
0R NC
PEG5
SJ5306
6Vin
2GND
1EN
5
ADJ
4
Vout
PG 3
7
U1
GND(THPAD)
LD39050PUR
R45
15K
R44
47K
1 2
JP1
HE14
EXT. DC IN
VUSB_MCU
C54
10uF/25V
L9
C56
BLM18EG471SN1D
1uF/25V
JP15
HE14
EXT. +5V IN
GND_USB
GND_USB
R47
0R
C55
10uF/25V
GND
JP13
HE14
V_RF SELECT. V_RF
21L4
742792641
1 2 3
JP16
HE14
VCC_EHVCC V_EH
VCC_EH SELECT.
VUSB_ST_LINK
3
2
1
4
JP14
HE14
UM3033 - Rev 1 page 10/34
UM3033
Schematic diagrams

Figure 11. STEVAL-ST25R3916B main board circuit schematic (2 of 10)
VUSB_ST_LINK
D1
BAT60JFILM
D3
BAT60JFILM
D2
5V
BAT60JFILM
C1
1uF/25V C2 C3
2.2uF/16V
1
10nF
2
34L2
2
744232090
1L1
2
742792042
1L3
5V
742792042
GND_USB
R1
0R
R3
0R
R4
NC
GND
VCC
LD1
GREEN
R2
510R
GND_USB
C48
10uF/25V
3V3
PEG1
SJ5306
PEG2
SJ5306
PEG3
SJ5306
PEG4
SJ5306
R118
0R NC
R119
0R NC
R120
0R NC
R121
0R NC
PEG5
SJ5306
6Vin
2GND
1EN
5
ADJ
4
Vout
PG 3
7
U1
GND(THPAD)
LD39050PUR
R45
15K
R44
47K
1 2
JP1
HE14
EXT. DC IN
VUSB_MCU
C54
10uF/25V
L9
C56
BLM18EG471SN1D
1uF/25V
JP15
HE14
EXT. +5V IN
GND_USB
GND_USB
R47
0R
C55
10uF/25V
GND
JP13
HE14
V_RF SELECT. V_RF
21L4
742792641
1 2 3
JP16
HE14
VCC_EHVCC V_EH
VCC_EH SELECT.
VUSB_ST_LINK
3
2
1
4
JP14
HE14
UM3033 - Rev 1 page 11/34
UM3033
Schematic diagrams

Figure 12. STEVAL-ST25R3916B main board circuit schematic (3 of 10)
19 VSSA
21
VREF+
VSS
74
VSS
10
35
VDD 11
PB0/OPAMP2_VOUT
VDD 28
VSS
27
12
PH0/OSC_IN 13
PH1/OSC_OUT
BOOT0 94
NRST 14
6
VBAT
23
24 PA0/OPAMP1_VINP
29 PA4/SPI1_NSS
2
2
6
5P
P
P
A
A
A
1
2
3/OPAMP1_VOUT
30 PA5/SPI1_SCK
31 PA6/OPAMP2_VINP
32 PA7/SPI1_MOSI
67 PA8/GPIO_OUT
68 PA9/GPIO_OUT
69 PA10/OTG_FS_ID
70 PA11/OTG_FS_DM
71 PA12/OTG_FS_DP
72 PA13/JTMS-SWDIO
76 PA14/JTCK/SWCLK
77 PA15/SPI3_NSS
36 PB1/GPIO_OUT
37
89 PB2
PB3/JTDO
90
9
9
2
1PB4
PB5
PB6/USART1_TX
93 PB7/USART1_RX
95 PB8/I2C1_SCL
96 PB9/I2C1_SDA
47 PB10/I2C2_SCL
48 PB11/I2C2_SDA
51 PB12/SPI2_NSS
52 PB13/SPI2_SCK
53
PB15
54 PB14/USART3_RTS
15 PC0/I2C3_SCL
16 PC1/I2C3_SDA
17 PC2/SPI2_MISO
18 PC3/SPI2_MOSI
33 PC4/GPIO_OUT
34 PC5/ADC12_IN14
63 PC6/GPIO_OUT
64 PC7/GPIO_OUT
65 PC8/GPIO_OUT
66 PC9/GPIO_OUT
78 PC10/SPI3_SCK
79 PC11/SPI3_MISO
80 PC12/SPI3_MOSI
7
8PC1
PC1
3
4/OSC32_IN
9PC15/OSC32_OUT
81
PD0/GPIO_OUT 82
PD1/GPIO_OUT 83
PD2/GPIO_IN 84
PD3/USART2_CTS 85
PD4/USART2_RTS 86
PD5/USART2_TX 87
PD7 88
PD6/USART2_RX
55
PD8/USART3_TX 56
PD9/USART3_RX 57
PD10/GPIO_OUT 58
PD12 59
PD11/USART3_CTS
PD13 60
PD14 61
62
PD15/GPIO_IN
97
PE0/GPIO_IN
PE1 98
PE2 1
2
PE3/GPIO_OUT 3
PE4/GPIO_OUT 4
PE5/GPIO_OUT 5
PE6/GPIO_OUT 38
PE7/GPIO_OUT 39
PE8/GPIO_OUT 40
PE9/GPIO_OUT 41
PE10/GPIO_OUT 42
PE11/GPIO_OUT 43
PE12/GPIO_OUT
PE13 44
45
PE14/SPI1_MISO 46
PE15/GPIO_OUT
VDD 50 VDD 75
VDD 100
73
VDD_USB
VDDA 22
VSS
99
20
VREF-
VSS
49
U2
STM32L476VGT6
TMS/SWDIO
TCK_SWCLK
TDO/SWO
BLE_SPI_IRQ
BLE_SPI_MOSI
BLE_SPI_MISO
BLE_SPI_CLK
TP9SMD/0.8mm
BLE_RESET
WF_UART_RTS
1 2
Y1
WF_UART_TX
WF_UART_RX
WF_RESET
WF_UART_CTS
C20
NX3225GD-8MHZ
10pF
C21 10pF
GND
SB1
SB2
STLK_MCO
ST25DX_MCU_CLK
ST25DX_SPARE
ST25DX_IRQ
ST25DX_I2C_SCL
ST25DX_SPI_CLK
C7
ST25DX_SPI_CSn
100nF
GND
VCC_EH
GND
TSCR_SPI_MISO
TSCR_SPI_MOSI
TSCR_SPI_CSn
TSCR_SPI_CLK
C5
100nF
C6100nF
C8100nF
GND
C4100nF
SW2
C23
TD-0341X-BLACK
100nF
GND
RESET#
VCC_EH
GND
C10
1uF/25V
C17
1uF/25V C15
100nF
C12
100nF
C16
100nF
GND
21L5
VCC_EH
FCM1608KF-601T03 C11
100nF
GND
GND
R6
47R
C13
1uF/25V
C14
100nF
GND
R9
0R
VCC_EH
GND
GND
R13
0R
R14
0R
JOYSTICK
SW1
R19
TD-0341X-BLUE
100R
R18
4K7
C22
100nF
VCC_EH
GND
LD3
ORANGE
R17
680R
GND
D4
BAT60JFILM
D5
BAT60JFILM
R15
0R
R16
1K5
GND
VCC_EH
LD2
YELLOW
R12
0R
GND
1 2
3 4
5
7
6
8
JP11
HE14
VCC_EH
GND
R11
360R
R97
NC
TP5
PTH/1.0mm
1LEFT
4RIGHT
UP
6
3DOWN
2
SEL 5
COM
SW4
MT-008A
R98
10K
R99
10K
R100
10K
R101
10K
R102
10K
C43
100nF 1
C44
00nF 1
C45
00nF
C46
100nF
C47
100nF
R103
10R
GND GND
VCC_EH
JOY_SEL
JOY_LEFT
JOY_RIGHT
JOY_UP
JOY_DOWN
JOY_SEL
JOY_LEFT
JOY_RIGHT
JOY_UP
JOY_DOWN
TP10SMD/0.8mm
TP12SMD/0.8mm
TP13SMD/0.8mm
TP1
TP14SMD/0.8mm
7SMD/0.8mm
TP19SMD/0.8mm
TP26SMD/0.8mm
SMD/0.8mmTP18
MCU_USB_ID
MCU_USB_D_N
MCU_USB_D_P
R107
1K5
ST25DX_I2C_SDA
R108
1K5
VCC_EH
R109
NC
R110
510R
GND
VCC_EH
SB11
SB12
1 2
Y3
C53
4.7pF
C52
4.7pF
R41
0R
0R
SB13
GND
NX3215SA 32.768KHZ
R42 SB14
SBs CLOSE TO THE CRYSTAL
SBs CLOSE TO THE MCU
TP2SMD/0.8mm0
SBs CLOSE TO THE MCU
TSCR_WR
TSCR_TE
TP2SMD/0.8mm1
TP2SMD/0.8mm2
SMD/0.8mmTP23
POT_I2C_SCL
POT_I2C_SDA
ST25DX_UART_CTSn
I_MEAS_OUT
ST25DX_UART_TX
ST25DX_UART_RTSn
ST25DX_UART_RXPOT_IN
GPO_8/RESET
GPO_7/CS1
STLK_UART_TX
STLK_UART_RX
GPO_6/D/C
GPO_5/BUSY
GPO_4/BS1
GPO_3/INT_3
GPO_2/INT_2
BLE_SPI_CSN
SMD/0.8mmTP6
SMD/0.8mmTP7
SMD/0.8mmTP8
TSCR_IRQ
TSCR_I2C_SCL
TSCR_I2C_SDA
LCD_BKLGHT_MOS_GATE
V_EH
ST25DX_SPI_MOSI
ST25DX_SPI_MISO
SMD/0.8mmTP11
R53 0R
R54 0R
R57 220R
R58 220R
R60 220R
R61 220R
UM3033 - Rev 1 page 12/34
UM3033
Schematic diagrams

Figure 13. STEVAL-ST25R3916B main board circuit schematic (4 of 10)
GND
VCC
C24
100nF
GND
POT_I2C_SDA
POT_I2C_SCL
POT_IN
R21
0R
R20
0R
2
5
4
3
B
A
W
1
GNDVDD
8
VLOGIC
SDA 7
SCL 6
9THPAD
THPAD
INTERNALLY
U3
FLOATING
VCC
AD5112BCPZ10
GND GND
R104
0R
R105
1K5
R106
1K5
C49
10uF/25V
GND
VCC
C19
100nF
GND
C9
10uF/25V
GND
R39
NC
GND
R23
0R
R22
4R3
I_MEAS_OUT
V_EH
UM3033 - Rev 1 page 13/34
UM3033
Schematic diagrams

Figure 14. STEVAL-ST25R3916B main board circuit schematic (5 of 10)
8VSSA
10 PA0/WKUP
PA1
11
13
14 PA3/USART2_RX
15 P
P
A
A
4
5/SPI1_SCK
16 PA6/SPI1_MISO
17 PA7/SPI1_MOSI
29 PA8/MCO
PA9
30
31
32 P
P
A
A
1
1
0
1/USBDM
34 PA13/JTMS/SWDIO
37
PA15
38 PA14/JTCK/SWCLK
33 PA12/USBDP
VSS
47
VSS
23 VDD 24
12
PB0 18
PB1
PA2/USART2_TX
19
20
PB2/BOOT1 39
PB3/JTDO
PB4 40
PB5 41
PB6 42
PB7 43
PB8 45
PB9 46
PB10 21
PB12 25
26
PB13/SPI2_SCK 27
PB14/SPI2_MISO 28
PB15/SPI2_MOSI
VDD 36 VDD 48
VSS
35
3
PC14/OSC32_IN 4
PC15/OSC32_OUT 5
PD0/OSCIN 6
PD1/OSCOUT
2
PC13/TAMPER-RTC
44
7N
BO
RS
O
T
T0
1
VBAT
PB11 22
9
VDDA
U5
STM32F103CBT6
C25
100nF
VCC
C26
100nF
C27
100nF
C28
100nF
GND
GND
R34
10K
R33
NC
GND
1 2
Y2
C30
NX3225GD-8MHZ
10pF
C32
10pF
GND
STM_RST
R31
100K
C31
100nF
SB3
GND
VCC
R24
4K7
R25
NC
R26
4K7
VCC
GND
T_JTCK
T_JTDO
T_NRST
R35
100K
STM_JTMS_SWDIO T_JTCK
T_JTMS
T_SWDIO_IN
LED_STLINK
T_SWO
R29
100R NC
C29
20pF NC
GND
STM_JTCK
R32
100K
GND
R28
100R
R30
100R
VCC
LED_STLINK
R460R
R43NC
R49
0R
R50
0R
R56
0R
T_JTCK
T_JTDO
T_SWO
T_NRST
T_JTMS
TDO/SWO
TMS/SWDIO
RESET#
1
2
3
4
JP4
HE14
SB6
VCC
SB7
SB9
GND
SB8
SB5SB4
STM_JTCK
STM_JTMS_SWDIO
RESERVED
DEFAULT
GND
UART_TX
STLK_MCO
TP1
PTH/1.0mm
TP2PTH/1.0mm
TP3PTH/1.0mm
C42
100nF
GND
STL_USB_D_N
STL_USB_D_P
RED YEL
LD4
HSMF-A201-A00J1
R27
0R
R111
2K7
R112
4K7
R113
0R
SB10
VCC
5V
GND
PWR_EXT
USB_RENUMn
18
VCCAVCCB
5DIR
4
GND
2B1
3A
A
1
2
7
B2 6
U4
C50
SN74LVC2T45DCUT
100nF
C51
100nF
GND
GND
T_SWDIO_IN
UART_RX
USART2_RX
USART2_RX
1JP10 2
HE14
12
JP2
HE14
1JP3 2
HE14
TCK_SWCLK
VCC VCC_EH
PTH/1.0mmTP4
R48NC
R51NC
R52NC
T_JTMS
R55
100K
VCC_EH
UM3033 - Rev 1 page 14/34
UM3033
Schematic diagrams

Figure 15. STEVAL-ST25R3916B main board circuit schematic (6 of 10)
D0 29
D1 28
D2 27
D3 26
D4 25
D5 24
D6 23
D7 22
D8 21
D9 20
D10 19
D11 18
D12 17
D13 16
D14 15
D15 14
D16 13
D17 12
YU
1
2
4
XL
3Y
X
D
R
5GND
6
VCI
7
IOVCC
NC 8
9
NC NC 10
TE
11
30
CLK
31
32 E
D
SD
N
O
A
T
36 WR
3
3
3
4
3
5
H
V
RD
SY
SY
N
N
C
C
37
/
RS
CS
38
39 /RESET
IM0
40
43
IM1
41
42 IM2
IM3
44
45
46
47
48
LCD1
R73
FRD240C48004-A-RT
4K7
A-BKLGHT
K1-BKLGHT
K2-BKLGHT
K3-BKLGHT
K4-BKLGHT
R74
NC
R75
NC
R76
4K7
R68
4K7
R67
NC
R70
NC
R69
4K7
R720R
R710R
R780R
R770R
GND
GND
VCC
GND
VCC
C34
4.7uF/25V
C35
100nF
GND
YU
XL
YD
XR
R63
4K7
R62
NC
R65
NC
R64
4K7
VCC
GND
R66
4K7
GND
TE
SDA
WR
RS
CSX
NRST
SPI MODE
VCC
Q2
STR2P3LLH6
R40
0R NC
LCD_BKLGHT_MOS_GATE
R59 220R
UM3033 - Rev 1 page 15/34
UM3033
Schematic diagrams

Figure 16. STEVAL-ST25R3916B main board circuit schematic (7 of 10)
2GPIO
6GND
8
SPI_MISO
SPI_CS 10
4
SPI_IRQ
3ANA_TEST
9
SPI_MOSI
5
1E
VI
X
N
T_LPCLK
7
SPI_CLK
11 BT_RESET
U8
SPBTLE-RF NC
6TXD1
GND
23
10 RTS1_DP
VCC 24
8RXD1
9CTS1_DN
16
17
19
1
18
20
22
13
4
7
5
11
12
15
14
21
25 GND_PAD
3RESETn
2BOOT0
TMS
26
27
30 TDO
T
2
2
8
9T
T
T
C
D
RS
I
K
U7
SPWF01SA.11 NC
R96
47K
C41
1uF/25V
R95
10K
GPIO0
GPIO1/PWM
GPIO2
GPIO3
GPIO4
GPIO5
GPIO6/WKUP/SLEEP_INH
GPIO7/STA/AP_SW
GPIO8/ADC
GPIO9
GPIO10/LED_RUN
GPIO11
GPIO12
GPIO13/LED_WIFI_LINK_UP
GPIO14/LED_PWR_UP
GPIO15/DAC
R94
10K
SPI_IRQ
SPI_CSN
SPI_MOSI
SPI_MISO
SPI_CLK
VCC
BLE_RESET
VCC
VCC
GND
GND
VCC
C38
100nF
C37
10uF/25V
GND
GND
C39
100nF/NC
R89
4K7
SW3
TD-0341X-BLACK-NC
GND
GND
R91
680R
LD7
GREEN-NC
R93
680R
LD8
GREEN-NC
R90
680R
LD6
GREEN-NC
GND
RUN
WIFI LINK
PWR UP
R92
4K7/NC
C40
VCC
100nF/NC
GND
1
2
3
4
5
JP5
VCC
HE14/NC
GND
SPW_SWDIO
SPW_SWCLK
WF_RESET
WF_RESET WF_RESET
SPW_SWDIO
SPW_SWCLK
UART_TX
UART_RX
UART_RTS
UART_CTS
UM3033 - Rev 1 page 16/34
UM3033
Schematic diagrams

Figure 17. STEVAL-ST25R3916B main board circuit schematic (8 of 10)
GND
VCC
GND
MCU_CLK
GND
8
7
6
5
4
3
2
1
5
4
3
2
1
J5
SSW-105-02-G-S-RA
GPO_3/INT_3
GPO_2/INT_2
5
4
3
2
1
J6
SSW-105-02-G-S-RA
UART_RTSn
UART_CTSn
UART_RX
UART_TX
11
12
13
14
J4
SSW-114-02-G-S-RA
SPARE
GPIO_1_IRQ
I2C_SCL
I2C_SDA
SPI_MOSI
SPI_MISO
SPI_CLK
SPI_CSn
V_RF
V_EH
UM3033 - Rev 1 page 17/34
UM3033
Schematic diagrams

Figure 18. STEVAL-ST25R3916B main board circuit schematic (9 of 10)
1
VBUS 2
D- 3
D+
5
GND
SHLD
G1
ID 4
G2
J2
G
G
4
3SH
SH
SH
L
L
L
D
D
D
5075BMR-05-SM
VUSB_ST_LINK
R3610R
1
R3710R
2
L7
742792641
R38
1M C33
4.7nF
GND_USB
GND_USB
12
4 3
L8
744232090
STL_USB_D_N
STL_USB_D_P
1
VBUS
D- 2
3
D+
5
GND
G1 SHLD
ID 4
SHLD
G2
G3
G4
J1
G5
SH
SH
SH
L
L
L
D
D
D
47590-0001
R10
1M C18
1
4.7nF
2
4 3L6
744232090
R510R
R710R
VUSB_MCU
R8
0R NC
GND_USB
GND_USB
MCU_USB_D_N
MCU_USB_D_P
MCU_USB_ID
MINI USB
MICRO USB
R114
1K5
R115
10K
R116
36K
R117
100R
5V
USB_RENUMn
GND
Q1
MMBT9013
VCC
R122
NC
USER
JTAG DEBUG
UM3033 - Rev 1 page 18/34
UM3033
Schematic diagrams

Figure 19. STEVAL-ST25R3916B main board circuit schematic (10 of 10)
1 2
3 4
5
7
6
8
9
11
13
10
12
14
JP12
CES-107-01-L-D
VCC_EH
GND
TSCR_SPI_CSnTSCR_I2C_SCL
TSCR_SPI_MISOTSCR_I2C_SDA
TSCR_SPI_MOSI
TSCR_SPI_CLKGPO_8/RESET
GPO_4/BS1
GPO_5/BUSY
GPO_6/D/C
GPO_7/CS1
Figure 20. STEVAL-ST25R3916B reader expansion board circuit schematic (1 of 3)
SPI_/SS
3V3
VBUS PWR Ok
3V3
Green
LED101
C100
2.2µF_0402_X5R
R101
680R
GND
3V3
VBUS
a
b
S100
PCM12SMTR
3V3
I2C_SCL
I2C_SDA
SPI_SCLK
SPI_/SS
SEN
INTR
MISO
MOSI
SCLK
V_RF
3V3
SDA
SCL
MCU_CLK16
SPI/Power_Con
MCU_CLK
MCU_CLK
3M
SPI/Power Supply
P100
Spacer
3M
P101
Spacer
3M
P102
Spacer
3M
P103
Spacer
SPI_IRQ
SPI_MISO
SPI_SCLK
SPI_MOSI
I2C_SCL
I2C_SDA
SPI_MISO
SPI_MOSI
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
J101
1
2
3
4
5
2.54mm Male Single Row Horizontal Male SH
J102
1
2
3
4
5
Male SH
J100
SPI_IRQ
CN100
NC
1
2
3
4
5
6
7
8
9
SPI_/SS
SPI_IRQ
SPI_MISO
SPI_SCLK
SPI_MOSI
I2C_SCL
I2C_SDA
GND
PWR Ok
Green
LED100
V_RF R100
1k
VBUS
Fiducial Fiducial
MIR1
Fiducial
MIR4
Fiducial
MIR2 MIR3
UM3033 - Rev 1 page 19/34
UM3033
Schematic diagrams

Figure 21. STEVAL-ST25R3916B reader expansion board circuit schematic (2 of 3)
RFI1
RFI2
RFO1
RFO2
AAT_A
AAT_B
Ext_LM
Antenna_Con
Antenna_Con
AAT_A
RFO1
AAT_B
RFO2
RFI2
RFI1
SPI/Power Supply
INTR_16
MISO_16
MOSI_16
SCLK_16
ST25R3916 NFC Initiator / HF Reader Controller Interface
Antenna Connection
SEN_16 SEN
INTR
MISO
MOSI
SCLK
V_RF
3V3
SDA
SCL
MCU_CLK16
SPI/Power_Con
V_RF
3V3
GND GND
GND GND GNDGNDGND
GND GND
V_RF
GNDGND
GND
GND
GND GND
GND GND GND GND
GND GND
RFO1
RFO2
3TP20
AAT_B
AAAT_
4TP20
CSO
CSI
RFI2
RFI1
AAT_A
AAT_B
CSO_out
3V3
VDD
Ext_LM
AAT_B
1VDD_IO
2CSO
3VDD_D
4XTO
5 6X
G
T
N
I
D_D
7VDD_A 8VDD
9
VDD_RF
10
VDD_TX
11
VDD_AM
12
GND_DR
RFO1 13
14
VDD_DR
RFO2 15
16
GND_DR
17
Ext_LM
18
AAT_A
19
AAT_B
20
I2C_EN
VSS 21
22
RFI1
23
AGDC
RFI2
24
25
26 G
CSI
ND_A
27
28 IRQ
MCU_CLK
29
3
3
3
0
2
1MO
BSS
SCL
MISO
SI
K
AQWTR
HF Reader IC
ST25R3916B-
U200
ST25R3916B
C201
10nF_0402
CSI_out
GND
INTR_16
MCU_CLK_16
SEN_16
SCLK_16
MOSI_16
MISO_16
GND
GND
TP201
C208
10nF_0402
C211
10nF_0402
C212
C213
2.2µF_0402_X5R
10nF_0402
C214
C215
2.2µF_0402_X5R
10nF_0402
C216
2.2µF_0402_X5R
C206
10nF_0402
C207
C202
2.2µF_0402_X5R
22nF_0402
C203
C204
2.2µF_0402_NC
10nF_0402
CSI_out
CSO_out1
2
P200
U.FL-R-SMT-1
1
2
P202
U.FL-R-SMT-1
1
2
P201
AAT_A
U.FL-R-SMT-1
GND
GND GND
GND
1
2
P203
U.FL-R-SMT-1
J207
closed 0R
Ext_LM
TP200
TP202J201
closed 0R
J202
open
J203
open
J204
closed 0R
J205
closed 0R
MCU_CLK_16
J200
open
GND
Y200
R210
0R
VDD
VDD_RF
VDD_RF
VDD_RF
VDD_TX
VDD_AM
VDD_TX
VDD_AM
V_RF 5TP20
7TP20
9TP20
1TP21
3TP21
6TP20
8TP20
0TP21
GND
2TP21
4TP21
C200
VDD_D
1µF_0402_X5R
VDD_A
VDD_D
C205
2.2µF_0402
J206
open
R201
1k65
R202
1k65
GND GND
C209
10nF NC
C210
2.2µF NC
C217
10pF_0402
C218
10pF_0402
R204 0R
0R R205
R206 0R
0R R207
R208 0R
R2090R
UM3033 - Rev 1 page 20/34
UM3033
Schematic diagrams