ST STM32H5 User manual

Introduction
The STM32H5 Nucleo-64 board based on the MB1814 reference board (order code NUCLEO-H503RB) provides an affordable
and flexible way for users to try out new concepts and build prototypes, by choosing from the various combinations of
performance and power consumption features provided by the STM32H5 series microcontroller.
The ARDUINO® Uno V3 connectivity and the ST morpho headers provide easy expansion of the functionality of the STM32
Nucleo open development platform with a wide choice of specialized shields.
The STM32H5 Nucleo-64 board does not require any separate probe as it integrates the STLINK-V3EC debugger/programmer.
The STM32H5 Nucleo-64 board comes with the STM32 comprehensive free software libraries and examples available with the
STM32CubeH5 MCU Package.
Figure 1. NUCLEO-H503RB top view Figure 2. NUCLEO-H503RB bottom view
Pictures are not contractual.
STM32H5 Nucleo-64 board (MB1814)
UM3121
User manual
UM3121 - Rev 1 - February 2023
For further information contact your local STMicroelectronics sales office. www.st.com

1Features
•NUCLEO-H503RB microcontroller based on the Arm® Cortex®-M33 core, featuring 128 Kbytes of flash
memory and 32 Kbytes of SRAM in an LQFP64 package
• USB Type-C® (Device mode/Full speed)
• One user LED shared with ARDUINO® Uno V3
• Reset and user push-buttons
• 32.768 kHz LSE crystal oscillator
• 24 MHz HSE crystal oscillator
• Board connectors:
–ST-LINK USB Type-C®
–User USB Type-C®
– MIPI10 for debugging (SWD/JTAG)
–ARDUINO® Uno V3 expansion connector
– ST morpho extension pin headers for full access to all STM32 I/Os
• Flexible power-supply options: ST-LINK USB VBUS, user USB connector, or external sources
• On-board STLINK-V3EC debugger/programmer with USB re-enumeration capability: mass storage, Virtual
COM port, and debug port
• Comprehensive free software libraries and examples available with the STM32CubeH5 MCU Package
• Support of a wide choice of Integrated Development Environments (IDEs) including IAR Embedded
Workbench®, MDK-ARM, and STM32CubeIDE
Note: Arm is a registered trademark of Arm Limited (or its subsidiaries) in the US and/or elsewhere.
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Features
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2Ordering information
To order the STM32H5 Nucleo-64 board, refer to Table 1. Additional information is available from the datasheet
and reference manual of the target STM32.
Table 1. Ordering information
Order code Board reference Target STM32
NUCLEO-H503RB MB1814 STM32H503RBT6
2.1 Products and codification
The meaning of the codification is explained in Table 2.
Table 2. Codification explanation
NUCLEO-XXYYRT Description Example: NUCLEO-H503RB
XX MCU series in STM32 32‑bit Arm Cortex MCUs STM32H5 series
YY MCU product line in the series STM32H503
R STM32 package pin count 64 pins
TSTM32 flash memory size:
• B for 128 Kbytes 128 Kbytes
In this document, for any information that is common to all sales types, the references are noted as the STM32H5
Nucleo-64 board.
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Ordering information
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3Development environment
3.1 System requirements
• Multi‑OS support: Windows® 10, Linux® 64-bit, or macOS®
• USB Type-A or USB Type-C® to USB Type-C® cable
Note: macOS® is a trademark of Apple Inc., registered in the U.S. and other countries and regions.
Linux® is a registered trademark of Linus Torvalds.
Windows is a trademark of the Microsoft group of companies.
3.2 Development toolchains
•IAR Systems® - IAR Embedded Workbench®(1)
•Keil® - MDK-ARM(1)
• STMicroelectronics - STM32CubeIDE
1. On Windows® only.
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Development environment
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4Conventions
Table 3 provides the conventions used for the ON and OFF settings in the present document.
Table 3. ON/OFF convention
Convention Definition
Jumper JPx ON Jumper fitted
Jumper JPx OFF Jumper not fitted
Jumper JPx [1-2] Jumper fitted between Pin 1 and Pin 2
Solder bridge SBx ON SBx connections closed by 0 Ω resistor
Solder bridge SBx OFF SBx connections left open
Resistor Rx ON Resistor soldered
Resistor Rx OFF Resistor not soldered
Capacitor Cx ON Capacitor soldered
Capacitor Cx OFF Capacitor not soldered
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Conventions
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5Quick start
The STM32H5 Nucleo-64 board is a low-cost and easy-to-use development kit, to evaluate and start development
quickly with an STM32H5 series microcontroller in an LQFP 64-pin package.
Before installing and using the product, accept the Evaluation Product License Agreement from the www.st.com/
epla webpage. For more information on the STM32H5 Nucleo-64 board and demonstration software, visit the
www.st.com/stm32nucleo webpage.
5.1 Getting started
Follow the sequence below to configure the STM32H5 Nucleo-64 board and launch the demonstration application
(refer to Figure 5 for component location):
1. Check the jumper position on the board (refer to Figure 3).
2. Power the board by connecting the STM32H5 Nucleo-64 board to a PC with a USB cable (USB Type-A to
USB Type-C® or USB Type-C® to USB Type-C®) through the USB connector (CN1) of the board.
3. Then, the 5V_PWR green (LD3), the COM (LD1), and the PWR (LD7) LEDs light up, and the user green
LED (LD2) blinks.
4. Press the user blue button (B1).
5. Observe how the blinking of the green LED (LD2) changes according to the clicks on the button (B1).
6. The demonstration software and several software examples that allow exercising Nucleo features are
available on the www.st.com website.
7. Develop your application using the available examples.
5.2 Default board configuration
The default jumper configuration and voltage settings are shown in Table 4.
Table 4. Default jumper configuration
Jumper Definition Position Comment
JP1 ST-LINK reset OFF STLINK-V3EC MCU is not under Reset
mode
JP2 IDD measurement ON VDD_MCU current measurement
JP5 5 V power source selection [1-2] 5 V from STLINK-V3EC (5V_STLK)
JP6 VDD ON VDD supplied with 3V3
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Two additional jumpers are set on the GND header (CN11 and CN12) as spare jumpers for configuration usage
(JP1).
Figure 3. Default jumper settings
DT59073V1
JP5
JP6
JP2
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Default board configuration
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6Hardware layout and configuration
The STM32H5 Nucleo-64 board is designed around an STM32H5 series microcontroller in a 64-pin LQFP
package.
Figure 4 shows the connections between the STM32H5 and its peripherals (STLINK-V3EC, push-buttons, LEDs,
USB, ARDUINO® connectors, and ST morpho headers).
Figure 5 and Figure 6 show the location of these features on the STM32H5 Nucleo-64 board.
The mechanical dimensions of the board are shown in Figure 7.
Figure 4. Hardware block diagram
DT59074V1
Embedded
STLINK-V3EC
STM32
microcontroller
ST morpho extension header ST morpho extension header
I/O
VCP
UART
Reset
button
(B2)
User
button
(B1)
I/O
ARDUINO® connector
ST-LINK part
MCU part
LD2
USB Type-C®
connector
ARDUINO® connector
USB Type-C®
connector
SWD
SWD VCP
UART
USB
Note: VCP: Virtual COM port
SWD: Serial Wire Debug
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6.1 PCB layout
Figure 5. Top layout
DT59075V1
ST-LINK RST (JP1)
User USB connector (CN3)
ST-LINK USB Type-C® connector (CN1)
ST-LINK COM LED (LD1)
ST-LINK power status LED (LD7)
PWR LED (LD3)
Power source selection (JP5)
ST morpho pin header (CN10)
ARDUINO® connector (CN9)
Reset button (B2)
User button (B1)
USB VBUS LED (LD6)
ST morpho pin header (CN7)
STM32 microcontroller (U13)
VDD connection to 3V3 (JP6)
IDD measurement (JP2)
MIPI10 connector (CN4)
ARDUINO® connector (CN8)
ARDUINO® connector (CN6) ARDUINO® connector (CN5)
User LED (LD2)
Figure 6. Bottom layout
DT59076V1
Product sticker
Board sticker
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PCB layout
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6.2 Mechanical drawing
Figure 7. STM32H5 Nucleo-64 board mechanical drawing (in millimeters)
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Mechanical drawing
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