max gpio current for nRF52 at Vdd=1.8v

[Udi2]

Hello,

What is the limitation of the total current we can source/sink at the same time in multiple pins for low Vdd?

I could find a similar question (and answer of 15mA) for Vdd=2.7v, but need the spec for Vdd=1.8v

Thank you very much, Udi

[Jørgen Holmefjord]

Hi,

The maximum current is given in the GPIO Electrical Specification of the nRF52832 Product specifications.

For VDD >= 1.7V, the GPIOs can sink/source a minimum of 3 mA if configured in high drive.

Best regards,
Jørgen

[Udi2]

Thanks,

My question is about the max TOTAL current from multiple pins which drive/sinks simultaneously. meaning, how many pins can draw/push the 3mA in parallel (in the same time)l? 

Thanks,

Udi

[Jørgen Holmefjord]

Hi,

See this answer. The same will be valid for VDD=1.8V as well.

Best regards,
Jørgen