ESP32-S3WROOM 2 GPIO pins 47 and 48 1.8v can they still be used as GPIO

[greg-dickson]

HI
In the datasheet it states

As the VDD_SPI voltage of the ESP32-S3R8V chip has been set to 1.8 V, the working voltage for
GPIO47 and GPIO48 would also be 1.8 V, which is different from other GPIOs.

As I read this it suggests that I can still use them as GPIO however their voltage will be 1.8v.

Can someone confirm this please.

I have a chip with an enable pin I can switch at this voltage so I can use them if it is true.

[Sprite]

Yes, I can confirm this.

[greg-dickson]

Yes, I can confirm this.

Thanks that's all I needed.

[greg-dickson]

Yes, I can confirm this.

I had a friend ask if they where 3.3v tolerant and I replied

AFAIK they are not 3.3 v tollerant as they are connected to the internal SPI voltage and as such feeding in 3.3v would probably fry the psram

Is that case?
Is my presumption correct?

[Sprite]

Yeah, I wouldn't put 3.3V on them indeed.

[greg-dickson]

Yeah, I wouldn't put 3.3V on them indeed.

Sort of makes sense really.
Thanks I'll let him know.