Skip to main content
V
vincent239955_stm1
Visitor II
August 23, 2005
Question

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

  • August 23, 2005
  • 3 replies
  • 835 views
Posted on August 23, 2005 at 05:56

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

    This topic has been closed for replies.

    3 replies

    V
    vincent239955_stm1Author
    Visitor II
    May 17, 2011
    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

    J
    joseph2399
    Visitor II
    May 17, 2011
    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.

    V
    vincent239955_stm1Author
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 12:08

    Hi,

    Thanks for the clarification.

    :D

    Terms & ConditionsAccessibility statement