Load current of GPIO

[KrishnaPrasad1z]

Hi,

We are using i.Mx6UL based custom board.
We need withstand load current of GPIO pin for appropriate LED selection(Considering GPIO voltage as 3.3V).
I could not find this detail in the datasheet. Please provide the detail on this.

Thanks in advance.

Regards,
Krishna

[b36401]

Actually GPIO buffer load capacity is not specified in units of current.
It is only specified in terms of buffer drive strength or output impedance.
You can refer chapter 4.8.1 "Single Voltage GPIO Output Buffer Impedance" of i.MX 6UltraLite DataSheet.

And you can use IBIS models to estimate the current.

Have a great day,
Victor

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