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GBA
Visitor II
September 23, 2025
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How much current can a GPIO port of stm32n6 can source and sink?

  • September 23, 2025
  • 3 replies
  • 344 views

I am working with an STM32N6 microcontroller and need clarification about the electrical characteristics of its GPIO pins. How much current a GPIO can source and sink. Is it in micro Amps or mili Amps.

Best answer by mƎALLEm

Hello @GBA and welcome to the community,

STM32N6 GPIO pin can source or sink up to ±20 mA.

From the datasheet page 172:

mALLEm_1-1758644503053.png

 

 

3 replies

mƎALLEm
mƎALLEmBest answer
Technical Moderator
September 23, 2025

Hello @GBA and welcome to the community,

STM32N6 GPIO pin can source or sink up to ±20 mA.

From the datasheet page 172:

mALLEm_1-1758644503053.png

 

 

"To give better visibility on the answered topics, please click on ""Accept as Solution"" on the reply which solved your issue or answered your question."
    TDK
    TDK
    Super User
    September 23, 2025

    20 mA source or sink. See the datasheet for details.

    TDK_0-1758644620792.png

     

    "If you feel a post has answered your question, please click ""Accept as Solution""."
      Andrew Neil
      Andrew Neil
      Super User
      September 23, 2025

      As the others have said, this is stated in the datasheet.

      Note that there is also a limit on the sum total of all GPIOs ...

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