Part Number: STM32WLE55CC The GPIO sink current mentioned in the data-sheet is ±8mA; The ±8mA is a total GPIO sink or source current (or) individual GPIO current? Kindly elaborate in detail.

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Best answer by TDK

±20mA per pin with ±100mA max over all pins. Additionally (per data sheet):

The GPIOs can sink or source up to ±8 mA, and sink or source up to ± 20 mA (with a relaxed VOL/VOH).

Guru

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Associate II

Does that mean the current sink by any I/O pin is 20mA?

Guru

Less than 5 of them would seem to be the inference

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TDKBest answer

Super User

±20mA per pin with ±100mA max over all pins. Additionally (per data sheet):

The GPIOs can sink or source up to ±8 mA, and sink or source up to ± 20 mA (with a relaxed VOL/VOH).

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