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kjepsen9
kjepsen9
Associate III
June 15, 2008
Question

USB Pullup ressistor

  • June 15, 2008
  • 2 replies
  • 502 views
Posted on June 15, 2008 at 11:30

USB Pullup ressistor

    This topic has been closed for replies.

    2 replies

    kjepsen9
    kjepsen9Author
    Associate III
    May 17, 2011
    Posted on May 17, 2011 at 12:37

    Hello,

    For my custom board i like to remove the software connect/disconnect and only have the 1.5K pull up resistor.

    must it be pulled up to 3V3 or the 5V from the usb?

    Kasper

    16-32micros
    16-32micros
    Associate III
    May 17, 2011
    Posted on May 17, 2011 at 12:37

    Hi kasper,

    Have a look on Datasheet , Section USB characteristics; D+ Should be pulled to 3V3 volts ( your VDD) . Hope this helps you for your Board design.

    Cheers,

    STOne-32.

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