AM2732: If no 1.8V devices are used, is VIOIN_18 required

Corey Minyard

Part Number: AM2732

Tool/software:

I'm working on a design where VIO is 3.3v and none of the 1.8V specific peripherals are used. Is VIOIN_18 still required, or can it be unconnected or somehow disabled?

6 months ago

0 Mike Pridgen 6 months ago

TI__Mastermind 22695 points

Hi Corey,

The VIOIN_18 is used internally in the AM273x device, so it is a required power rail, even if all GPIOs are run at 3.3V (using 3.3V on VIOIN).

Thanks,
Mike

0 Corey Minyard 6 months ago in reply to Mike Pridgen

Prodigy 90 points

Thanks a bunch, this is what I needed to know. I was hoping to remove some power converters.

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AM2732: If no 1.8V devices are used, is VIOIN_18 required