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Internal Pullups and I2C

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  • Internal Pullups and I2C

    Are the internal pullups disabled on pins configured for I2C?

    Rephrased: Will I always need to use external pullups with I2C peripherals?



    Thank you.
    J.Dyess

  • #2


    Yes, you will always need external pullups.

    The internal ones are not of a value suitable for use with I2C.
    Mark

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