Not using USB

stuart23 · ‎2006-06-28

Posted on June 28, 2006 at 11:58

Not using USB

stuart23 · ‎2011-05-17

Posted on May 17, 2011 at 09:30

Hello

I am using an STR911FM44X6 in a design which does not require the USB peripheral. Is it safe to leave the USB pins open or should they be tied to ground as per the rest of the unused port pins? (see MD's post on this issue)

Stuart

jhshen · ‎2011-05-17

Posted on May 17, 2011 at 09:30

Hi,

There is no problem to leave those pins open.

anis · ‎2011-05-17

Posted on May 17, 2011 at 09:30

Hi,

It is recommended to leave USBDN not connected and put a pull-up of 1.5Kohm to VDDQ on USBDP.

Best regards,

STARM