NUCLEO-G431KB
Overview
The NUCLEO-G431KB is a compact Nucleo-32 development board featuring the STM32G431 microcontroller with an Arm Cortex-M4 core running at 170 MHz. This board is designed for high-performance analog and mixed-signal applications, offering a small form factor compatible with Arduino Nano V3 expansion connectors. It includes an integrated ST-LINK debugger/programmer, eliminating the need for external hardware to flash or debug the device.
Why Choose This Part
The board features a high-performance 170 MHz core and 128 KB of Flash memory in a very small footprint. It provides flexible power-supply options through USB VBUS or external sources and includes a dedicated reset button and user LED for immediate feedback during development. The built-in ST-LINK supports virtual COM port and mass storage modes, greatly simplifying the development workflow on modern operating systems.
Applications
Key Specifications
Getting Started
To begin development, connect the board to a PC via a Micro-AB USB cable for power and debugging. Use the STM32CubeIDE or IAR Embedded Workbench along with the STM32CubeG4 MCU Package for access to peripheral drivers and hardware abstraction layers. The board is also compatible with the Arduino Nano V3 hardware ecosystem, allowing for easy integration with existing shields and breadboard circuits.
NUCLEO-G431 Family
Comparing specs that differ across variants. The current part is highlighted.
| Part Number | Platform | Stock |
|---|---|---|
| NUCLEO-G431KB (this part) | Nucleo-32 | 5,397 |
| NUCLEO-G431RB | Nucleo-64 | 58 |




