5V tolerance for the MCU module I/O ports?

vincent239955_stm1 · ‎2005-08-22

Posted on August 23, 2005 at 05:56

vincent239955_stm1 · ‎2011-05-17

Posted on May 17, 2011 at 12:08

Hi,

I am considering to use uPSD3354DV-40U6 and was looking at the voltage tolerance of the I/O ports in the datasheet.

On page 13, only the Port 3 & 4 are 5V tolerant.

But on page 207, the Vih is 5.5V max. for Ports 0,1,2,3,4, XTAL1, RESET.

I need to find out whether Port 1 is 5V tolerant, since there is some conflicting statements in the datasheet.

Can anyone help confirm the actual ports which are 5V tolerant?

Thanks in advance.

Rgds,

Nick

joseph2399 · ‎2011-05-17

Posted on May 17, 2011 at 12:08

Port 1 is NOT 5V tolerant. Page 207 in the data sheet needs to be updated appropriately.

vincent239955_stm1 · ‎2011-05-17

Posted on May 17, 2011 at 12:08

Hi,

Thanks for the clarification.

:-D