Can I apply 5 volts to the DP and DM pins of the FT232RL, given that the technical sheet says that the maximum voltage of these pins is up to 3.8 volts?

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  • 5
    \$\begingroup\$ You can do whatever you like but the manufacturer says max 3.8V, so if you exceed this, the manufacturer does not guarantee the device will work. What sort of answer do you want? \$\endgroup\$
    – Kartman
    Commented Jul 10 at 12:45
  • 3
    \$\begingroup\$ What exactly do you think "maximum voltage" means? \$\endgroup\$
    – Dave Tweed
    Commented Jul 10 at 12:46
  • 2
    \$\begingroup\$ Can I apply 5 volts to the DP and DM pins can you give more info about the application? Why do you need to apply 5V to those pins? \$\endgroup\$ Commented Jul 10 at 12:48
  • \$\begingroup\$ Are you trying to work out if you've broken the IC after accidentally connecting the 5V, or something? \$\endgroup\$
    – TonyM
    Commented Jul 10 at 13:03
  • \$\begingroup\$ Why would you even apply 5V to DP and/or DN pins? What are you after by asking this question, as the way it is now asked does not make much sense. \$\endgroup\$
    – Justme
    Commented Jul 10 at 14:07

1 Answer 1


Short answer: No, you should not

Longer answer: Sure you can do that. It might destroy your chip but that doesn't technically mean that you can't do it.

It's even written right there: Screenshot from "absolute Maximum ratings form FTDI datasheet

So: Don't do it.

  • 3
    \$\begingroup\$ "that DOESN'T technically mean..." \$\endgroup\$
    – Finbarr
    Commented Jul 10 at 12:57
  • \$\begingroup\$ @Finbarr true. Fixed now :) \$\endgroup\$
    – kruemi
    Commented Jul 10 at 13:11

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