User's Guide

ME910C1 HW User Guide
1VV0301351 Rev. 2 Page 44 of 81 2017-07-19
Communication ports
5.6.1. USB 2.0 HS
The ME910C1 includes one integrated universal serial bus (USB 2.0 HS) transceiver.
The following table is listing the available signals:
PAD Signal I/O Function Type NOTE
B15 USB_D+ I/O USB differential Data (+) 3.3V
C15 USB_D- I/O USB differential Data (-) 3.3V
A13 VUSB AI
Power sense for the internal USB
transceiver.
5V
Accepted range:
4.4V to 5.25V
The USB_DPLUS and USB_DMINUS signals have a clock rate of 480 MHz.
The signal traces should be routed carefully. Trace lengths, number of vias and capacitive
loading should be minimized. The characteristic impedance value should be as close as
possible to 90 Ohms differential.
In case there is a need to add an ESD protection, the suggested connection is the
following:
NOTE:
VUSB pin should be disconnected before activating the
Power Saving Mode.