ST NUCLEO-H7S3L8 STM32 Nucleo-144 Development Board

Prototype with ST’s NUCLEO-H7S3L8 board featuring STM32H7S3L8 MCU. Offers high performance, low power, STLINK-V3EC debugger, USB-C, Ethernet, and expansion connectors.

The STM32 Nucleo-144 board provides developers with an affordable and versatile platform to test ideas and build prototypes, powered by the high-performance STM32H7S3L8 microcontroller. Ideal for engineers and embedded developers, this board enables exploration of the full capabilities of STM32 MCUs. It features 620 KB of RAM, 64 KB of built-in flash, and a 256-Mbit external flash, offering ample memory for complex applications. Its efficient power management supports USB and USB-C connections or external 5–12 V supplies, optimizing energy use for low-power projects.

The onboard STLINK-V3EC debugger allows programming and debugging without additional hardware, supporting USB communication, virtual COM ports, and mass storage. Expansion is easy via the ST Zio connector for Arduino Uno shields and ST morpho headers for specialized peripherals. Additional interfaces include Ethernet, USB-C, debugging ports, and clock crystal sockets, while onboard LEDs, user buttons, and a reset switch provide intuitive control for prototyping.

Backed by STM32Cube software libraries, example code, and development tools, the NUCLEO-H7S3L8 delivers a complete ecosystem, enabling rapid development of IoT, embedded, and industrial applications.

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Top and Bottom Overview

NUCLEO-H7S3L8 top view NUCLEO-H7S3L8 bottom view

Why Choose The NUCLEO-H7S3L8?

The NUCLEO-H7S3L8 delivers 2X faster performance and offers 256 MB Octo-SPI NOR flash with expansion options, paired with an on-board ST-LINK debugger and Arduino UNO interface for seamless development. Built-in Ethernet and USB connectivity ensure easy integration into connected applications. Here are the core advantages-

Ultra-High Performance: STM32H7S3L8 Arm Cortex-M7 core at 600MHz, with 4MB Flash and 256MB Octo-SPI NOR for massive storage.
Robust Security: Integrated cryptography accelerators and Arm TrustZone for secure IoT/embedded apps.
Versatile Connectivity: Ethernet RJ45, USB Type-C HS (SNK/UFP), Arduino Uno V3/ST Zio/morpho headers for easy expansion.
Power Efficiency: Internal/external SMPS, flexible supplies (USB/external), low Run-mode consumption.
Dev-Friendly: On-board ST-LINK/V3 debugger, 3 LEDs/2 buttons, STM32Cube libraries/IDEs for rapid prototyping.

Features and Benefits

Common features:

STM32 microcontroller in an LQFP144 or a TFBGA225 package.
3 user LEDs.
2 user and reset push-buttons • 32.768 kHz crystal oscillator.
Board connectors: SWD, ST Zio expansion connector including ARDUINO® Uno V3, ST morpho expansion connector.
Flexible power-supply options: ST-LINK USB VBUS, USB connector, or external sources.
Comprehensive free software libraries and examples available with the STM32Cube MCU Package.
Support of a wide choice of Integrated Development Environments (IDEs) including IAR Embedded Workbench®, MDK ARM, and STM32CubeIDE

Specific features to some of the boards:

External or internal SMPS to generate Vcore logic supply.
Ethernet compliant with IEEE-802.3-2002
USB Device only, USB OTG full speed, or SNK/UFP (full-speed or high-speed mode)
Board connectors: ARDUINO® Uno V3 connector or ST Zio expansion connector including ARDUINO® Uno V3, Camera module FPC, MIPI20 compatible connector with trace signals, USB with Micro-AB or USB Type-C®, Ethernet RJ45
On-board ST-LINK (STLINK/V2-1, STLINK-V3E, or STLINK-V3EC) debugger/programmer with USB re-enumeration capability: mass storage, Virtual COM port, and debug port