what is the max sourcing and sinking current on GPIO pins for CY8C3866AXI-040? I would also like to know the maximum voltage rating of GPIO pins.

shjoc_4290246 · ‎Jun 06, 2019

What is the max sourcing and sinking current on GPIO pins for CY8C3866AXI-040? I would also like to know the maximum voltage rating of GPIO pins.

On the datasheet I found following with regards to VGPIO. Max VGPIO is VDDIO+0.5.But note 19 says Max voltage on GPIO has to be less than or equal to VDDIO

VenkataD_41 · ‎Jun 12, 2019

Hi,

Here is the maximum current that a GPIO can handle. Please refer page number 21 of the pin component datasheet.

4mA source, 8mA sink – Default

▪ 4mA source, 10mA sink – Requires GPIO_OVT or SIO (PSoC 4 only)

▪ 4mA source, 25mA sink – Requires SIO

Coming to the maximum voltage on the GPIO, the voltage on the pin should be less than VDDIO of that corresponding port. But if the voltage on he pin exceeds the VDDIO by 0.5 volts, the ESD diodes present inside the chip would be damaged.

Please refer page number 168 of the following document.

https://www.cypress.com/file/124706/download

Thanks and regards

Ganesh

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what is the max sourcing and sinking current on GPIO pins for CY8C3866AXI-040? I would also like to know the maximum voltage rating of GPIO pins.

what is the max sourcing and sinking current on GPIO pins for CY8C3866AXI-040? I would also like to know the maximum voltage rating of GPIO pins.

Re: what is the max sourcing and sinking current on GPIO pins for CY8C3866AXI-040? I would also like to know the maximum voltage rating of GPIO pins.