topic MCXN547VNLT GPIO current limit in MCX Microcontrollers

MCXN547VNLT GPIO current limit

seanwu — Tue, 05 Nov 2024 08:39:38 GMT

Dear sir,

Does the MCXN547VNLT GPIO have a minimum current and a maximum current limit?

Thanks.

BR,

Sean Wu

Re: MCXN547VNLT GPIO current limit

Alice_Yang — Thu, 07 Nov 2024 08:35:51 GMT

Hello @seanwu

Please ignore my last reply. You are correct. As noted in point 9 of your screenshot:

If VIN is greater than VDD_Px_MIN (= VSS - 0.3 V) or is less than VDD_Px_MAX (= VDD_Px + 0.3 V), then there is no need to provide current-limiting resistors at the pads. No current limitation is required because, within this voltage range, the internal protection diodes can effectively protect the pins.

If this limit cannot be observed, need refer :

Alice

Re: MCXN547VNLT GPIO current limit

seanwu — Thu, 07 Nov 2024 02:16:08 GMT

Dear @Alice_Yang ,

Thanks for your reply.

And I have a question of What is the difference between the table and yours?

Thanks.

BR,

Sean Wu