does STM32H743 maximum gpios total current limit related to pin quantity? Datasheet says 140mA for 100,144,164.. pins.But i think max current must change base on pin quantity.
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‎2020-10-30 5:57 AM
Are there anyone to know that gpio pin quantity to maximum current limit relation?
- Labels:
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Documentation
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GPIO-EXTI
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STM32H7 Series
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‎2020-10-30 6:10 AM
The datasheet certainly doesn't think so. Why would it change based on the number of pins?
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‎2020-10-30 6:12 AM
Why, wouldn't it have more to do with the distribution of power, and the trace widths in the metal layers?
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The parts share a common die, the bond out and lead frames might help localized current distribution/paths.​
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‎2020-10-30 7:03 AM
Because, more pin ,more vdd quantity i thought that more vdd more total gpio pin current out
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‎2020-10-30 7:06 AM
for example at 100 pin 5 vdd, 144 pin 10 vdd existed , i thought that more vdd more bound out and more total gpio current
