Wondering different port GPIO Power Consumption matter?

uveuvenouve · ‎2023-08-22

Hi everyone.

I am recently working on stm32 chip and found a page show the power consumption

seems GPIO port C and F can save half the power than A and B
should i always consider to use gpio port C and F ?
or the consumption is too little that we don't need to care about?

ramprakash08 · ‎2023-08-22

Hi,

The power consumption of different GPIO ports can indeed vary, but the difference is usually quite small and may not significantly impact the overall power consumption of your system.

However, if you're designing a low-power application where every milliamp counts, then it could be worth considering. The STM32 microcontrollers are designed with power efficiency in mind, and different ports may have been optimized for lower power consumption.

That being said, the choice of GPIO ports should also take into account other factors such as the functionality of the pins, the layout of your PCB, and the ease of routing. In many cases, the power savings from using a specific GPIO port might be outweighed by these other considerations.

Regards

View solution in original post

ramprakash08 · ‎2023-08-22

Hi,

The power consumption of different GPIO ports can indeed vary, but the difference is usually quite small and may not significantly impact the overall power consumption of your system.

However, if you're designing a low-power application where every milliamp counts, then it could be worth considering. The STM32 microcontrollers are designed with power efficiency in mind, and different ports may have been optimized for lower power consumption.

That being said, the choice of GPIO ports should also take into account other factors such as the functionality of the pins, the layout of your PCB, and the ease of routing. In many cases, the power savings from using a specific GPIO port might be outweighed by these other considerations.

Regards