Micro USB pinout on schematic - Help!

Discussion in 'General Electronics Chat' started by dmc0162, Feb 11, 2015.

  1. dmc0162

    Thread Starter Active Member

    Dec 13, 2007
    51
    1
    I am looking at a schematic for an IC that outputs to a micro USB connector. I am familiar with USB pins obviously having Vcc, Gnd, D+, D-, and an ID pin which can be grounded to distinguish host/slave device on micro connectors. However, I am not sure how to interpret this wire connection coming from the SIDE of the OUTPUT USB connector in this data sheet schematic. I don't think it is the ID pin because it does not run to GND. Does anybody have any idea what they mean by that side connection?

    Thanks!



    [​IMG]
     
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  2. ericgibbs

    AAC Fanatic!

    Jan 29, 2010
    2,504
    380
    hi,
    When S1 is set Closed,[for 100mSec] the ID pin #5, is connected to 0V via R13, also the ACT is enabled.
    E
     
  3. dmc0162

    Thread Starter Active Member

    Dec 13, 2007
    51
    1
    Thank you!!
     
  4. dmc0162

    Thread Starter Active Member

    Dec 13, 2007
    51
    1
    Edit.
     
    Last edited: Feb 24, 2015
  5. Dan Micu

    New Member

    Jun 12, 2015
    20
    0
    Really interesting since I'm having the same dilemma .. A Micro USB type B has 5 pins and there are many conflicting answers on the web .. What pisses me off is that neither Molex or Hiroshi map the pins in their specs .. so annoying trying to guess what is what .. I used my voltmeter to try and measure, but the plug is so tiny I find the Vcc pin .. I'm guessing pin 1 is Vcc and Pin 5 is ground ..
     
    Last edited: Jun 21, 2015
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