ESP32-S3-WROOM-2-N32R8V logic level on all pins

Baldhead
Posts: 437
Joined: Sun Mar 31, 2019 5:16 am

ESP32-S3-WROOM-2-N32R8V logic level on all pins

Postby Baldhead » Tue Oct 03, 2023 10:43 pm

Hi,

I would like to confirm which pins of module "ESP32-S3-WROOM-2-N32R8V" work with 1.8 volt logic level.

Mainly "user pins".

For me, the 1.8 volt logic level is a problem, i need to know if all the pins are 3.3 volts.

Only GPIO47 and GPIO48 are 1.8V ?
From what i understand i can use these two io's, they are not connected in external 32MB flash memory.

Thank's.

ESP_Sprite
Posts: 9583
Joined: Thu Nov 26, 2015 4:08 am

Re: ESP32-S3-WROOM-2-N32R8V logic level on all pins

Postby ESP_Sprite » Wed Oct 04, 2023 3:12 am

From the datasheet:
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.
In other words, only GPIO47 and 48 are 1.8V, the rest is 3.3V. Those two GPIO pins may not be connected to the flash, but they're powered by the same voltage.

Baldhead
Posts: 437
Joined: Sun Mar 31, 2019 5:16 am

Re: ESP32-S3-WROOM-2-N32R8V logic level on all pins

Postby Baldhead » Thu Oct 05, 2023 7:20 pm

If GPIO47 and GPIO48 were used as input, what is their logic level ?

3,3V or 1,8V ?

Thank's.

ESP_Sprite
Posts: 9583
Joined: Thu Nov 26, 2015 4:08 am

Re: ESP32-S3-WROOM-2-N32R8V logic level on all pins

Postby ESP_Sprite » Fri Oct 06, 2023 3:29 am

1.8V.

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