DP83822I: 3.3V Input Signal While VDDIO=2.5V

Kazuki Itoh

Genius 10730 points

Part Number: DP83822I

Hello team,

Do DP83822I IO pins accept 3.3V signal while VDDIO=2.5V?

I want to know if MDIO/MDC/RESET/INT/XI works with 3.3V input signal when VDDIO=2.5V.

Regards,

Itoh

over 4 years ago

0 Gerome Cacho over 4 years ago

TI__Mastermind 39785 points

Hi Itoh,

If VDDIO is set to 2.5V, the maximum voltage that the IO pin should accept would be 2.625V. Any voltage level higher than this could potentially damage the IC.

Thanks,

Gerome

0 Kazuki Itoh over 4 years ago in reply to Gerome Cacho

TI__Genius 10730 points

Hi Gerome-san,

Thanks.

I'm just a little curious. How can I find that information from the datasheet?

Regards,

Itoh

0 Gerome Cacho over 4 years ago in reply to Kazuki Itoh

TI__Mastermind 39785 points

Hi Itoh,

This information is located in section 7.3 of the datasheet, Recommended Operating Conditions.

Sincerely,

Gerome

0 Kazuki Itoh over 4 years ago in reply to Gerome Cacho

TI__Genius 10730 points

Hi Gerome-san,

I think it specifies the VDDIO supply voltage.

But I understand.

Regards,

Itoh

Interface

Interface forum

DP83822I: 3.3V Input Signal While VDDIO=2.5V