Nucleo-F446RE Pinout Arduino and Morpho Header Diagrams

This page provides the complete Nucleo-F446RE Pinout diagrams for the STM32 Nucleo-F446RE development board. The Nucleo-F446RE is based on the STM32F446RET6 microcontroller running at up to 180 MHz with 512KB flash and 128KB RAM. Diagrams include both Arduino and Morpho header pin assignments with alternate function labels.

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Search by pin name (e.g. PA9, PG14) or by function name (e.g. USART1_TX, QUADSPI_BK1), across all four header diagrams. Data is sourced from ST\’s official UM1724 Nucleo-64 User Manual and the STM32F446RE pin database.
Note: the function list shown for each pin is that pin\’s full MCU-level alternate-function capability — not every function listed is necessarily wired or labeled on this specific connector; the diagram\’s own green/colored tags show only what ST has actually broken out at that position.

Pinout Legend

STM32 Nucleo Pinout Legend

Arduino Headers

Arduino Header (Top Left — CN6 / CN8)

Nucleo-F446RE Arduino Header Top Left CN6 CN8

Arduino Header (Top Right — CN5 / CN9)

Nucleo-F446RE Arduino Header Top Right CN5 CN9

Morpho Headers

Morpho Header (Top Left — CN7)

Nucleo-F446RE Morpho Header Top Left CN7

Morpho Header (Top Right — CN10)

Nucleo-F446RE Morpho Header Top Right CN10

Tutorials Using This Board