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Associate II
March 18, 2025
Solved

STM8S003F3 Datasheet pin description

I'm just starting to learn about MCUs and am reviewing the datasheet for the STM8S003F3. In the pin description table, I came across some symbols that I'm not quite sure about, such as bold X with underline (X), regular X (X), and dash (-). What do these symbols mean?

pin_description.png

 

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    TDK
    TDKBest answer
    March 18, 2025

    dash is not available or not applicable.

    X is supported.

    bold X with underline is the pin state after reset

    TDK_0-1742266417467.png

     

    "If you feel a post has answered your question, please click ""Accept as Solution""."

    4 replies

    TDK
    TDKBest answer
    March 18, 2025

    dash is not available or not applicable.

    X is supported.

    bold X with underline is the pin state after reset

    TDK_0-1742266417467.png

     

    "If you feel a post has answered your question, please click ""Accept as Solution""."
    zin10Author
    Associate II
    March 18, 2025

    Thank you

    CustomSarge
    Associate III
    March 24, 2025

    A quick heads up:

    Other mfgrs retain pin->function assignments.

    ST Ports will still be ports, but "other" functions DO change with the package.

    I got the "wake up" on an STM8S003 TSSOP-20 VS QFP-32.

    If you're going to proto in a different package, keep it in mind.  <<<)))

    zin10Author
    Associate II
    March 24, 2025

    Thank you!