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TUSB3410 Not using serial lines

Sean Omaits
Prodigy 10 points
Is it required to add a pullup or pulldown resistor to lines which are not in use? If so what would be the recommended value? I am not using the DTR, RTS, SOUT, SIN, RI, DCD, DSR, AND CTS lines and just plan to use the general I/O pins for my use.
  • 0
    TI__Genius 16890 points

    Output pins can be left floating/disconnected.

    Unused input pinss should be tied high.  This can be through a a single pull-up resistor (such as a 1K ) tied to all of the input pins so they are not unintentionally driven.