Nucleo-64 STM32F446 ARM STM32 Minimum System Development Board
The Nucleo-64 STM32F446 development board is a compact, low-cost evaluation and prototyping platform built around the STM32 family in an LQFP64 package. It’s designed to let engineers and students quickly try MCU features and build proofs-of-concept without needing an external debugger the board integrates an ST-LINK/V2-1 programmer/debugger and provides a small, breadboard-friendly form factor with standard expansion connectors.
Hardware layout exposes an Arduino® Uno V3 expansion connector plus ST Morpho headers that give full access to the MCU I/Os, making it easy to add shields or custom daughterboards. The PCB includes a user LED, user and reset buttons, a 32.768 kHz oscillator and a set of solder bridges/jumpers to configure ST-LINK behavior or power routing enabling flexible use in bench and embedded setups.
The board supports multiple power sources (USB ST-LINK VBUS or external VIN/+3.3V), comes with preloaded demonstration firmware from the STM32Cube packages, and has full EDA resources (schematics, BOM, PCB files) available from ST’s product page simplifying transition from prototype to product. It targets rapid learning, experiment cycles and easy integration with common IDEs (STM32CubeIDE, Keil, IAR).
Features:
- Integrated ST-LINK/V2-1 debugger/programmer (no external probe required).
- Arduino® Uno V3 expansion connector for shield compatibility.
- ST Morpho extension headers exposing all MCU I/Os for add-ons.
- 1 user LED and user + reset push-buttons.
- 32.768 kHz real-time clock crystal fitted.
- Flexible power options: ST-LINK USB VBUS or external VIN / +3.3 V.
- Demonstration firmware preloaded and STM32Cube software support.
- EDA resources and bill-of-materials available from ST’s product page.
Specifications:
| Specification: | Value / Notes: |
|---|---|
| Board family: | STM32 Nucleo-64 (MB1136 reference / NUCLEO-xxxxRx series). |
| Example target MCU: | STM32F446RET6 (NUCLEO-F446RE variant — LQFP64, 512 KB Flash). |
| On-board debugger: | Embedded ST-LINK/V2-1 (mass storage, VCP, debug). |
| Expansion: | Arduino® Uno V3 connector and ST Morpho headers (full I/O access). |
| User I/Os: | 1 user LED; user and reset push-buttons; multiple solder-bridges for configuration. |
| Clock sources: | 32.768 kHz RTC crystal; board may support HSE depending on variant. |
| Power: | ST-LINK USB VBUS, external VIN, or +3.3V input options; jumpers/solder bridges select sources. |
| Software resources: | Preloaded demo firmware; STM32Cube MCU Pack examples; supported IDEs: STM32CubeIDE, Keil, IAR. |
| EDA & docs: | Schematics, BOM, and PCB files downloadable from ST product page. |
| Form factor: | Nucleo-64 small card (mechanical dims / pre-cut PCB options described in manual). |
Mechanical Dimensions:
Applications:
- Rapid prototyping and proof-of-concept development.
- Arduino-shield based expansion and experiments.
- Educational labs and hands-on MCU training.
- Embedded system bring-up and firmware debugging.
- Low-power experimentation using optional SMPS variants.
Package Contents:
- 1x Nucleo-64 STM32F446 ARM STM32 Minimum System Development Board
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