User's Manual
Table Of Contents
- 1 Features
- 2 Ordering information
- 3 Development environment
- 4 Conventions
- 5 Quick start
- 8 NUCLEO-WL55JC board information
- Appendix A STM32WL Nucleo-64 I/O assignment
- Appendix B Federal Communications Commission (FCC) and Innovation, Science and Economic Development Canada (ISED) Compliance Statements
- Appendix C Déclaration de conformité CE simplifiée
- Revision history
- Contents
- List of tables
- List of figures
Figure 10. STM32WL Nucleo-64 board power tree
RF part
MCU STM32WL
STLINK-V3E USB connector (CN1)
Arduino Uno
Connectors
&
morpho
headers
STM32F723IEK
(STLINK-V3E)
&
bicolor led LED6 (COM)
MIPI10
connector (CN16)
DFU connector (CN2)
LDO
LD39050PU33R
3V3
5V
U2
JP4
U5
LDO
LD3985M33R
U7
5V_USB_STLK
5V_VIN
E5V
5V_USB_CHGR
LDO
LD1117S50TR
U8
VIN
5V
AVDD
5V_VIN
3V3
5V_VIN
5V_USB_CHGR
3V3_STLK
IOREF
E5V
VBAT
5V_USB_CHGR
VDD_MCU
VDD_MCU
3V3
3V3
5V_PWR
Power switch
5 V / 500 mA
STMPS2151STR
CN5
CN9
CN6
CN8
1
10
1
8
1
6
1
8
CN10
CN7
2
38
1
37
5V_USB_CHGR
5V_VIN
E5V
VBAT
(VDD_RF)
(VDD_SYS)
(VBAT)
3V3
VDD_SYS
SB21
(ON)
SB25 (OFF)
JP1
ON
VDD_MCU
SB29 (ON)
STD_ALONE_5V
JP7
ON
TCXO
RF front-end
(PB0_VDD_TCXO)
VDD_RF
SB28
(ON)
VDD_SYS
SB27
(ON)
VDD_APP
SB32
(ON)
3V3
AVDD
SB26
(ON)
(VREF+)
VDD_SYS
SB24
(ON)
In case 5V_VIN, E5V, 5V_USB_CHGR, 3V3, or STD_ALONE_5V is used to power the STM32WL Nucleo-64
board, this power source must comply with the EN-60950-1: 2006+A11/2009 standard and must be Safety Extra
Low Voltage (SELV) with limited power capability.
If the power supply is 3V3 or STD_ALONE_5V, the ST-LINK is not powered and cannot be used.
UM2592
Power supply
UM2592 - Rev 2
page 16/50