User Guide

20130927
NUR05WL2ImplementationGuidev1.1
4.3 USBDEVICEPORT
USB_DP, USB_DN and USB_DET pins are used to provide 2.0 compliant USB device port. It must be
remembered that only one communication method can be used to communicate with the NUR05WL2
module at the time. Connecting the USB will automatically prevent communication via serial port. It is
advisedtouseexternalESDprotectioncomponentifconnectedtouseraccessibleUSBconnector.Belowis
thetypicalschematicsusedwithNUR05WL2module.
TypicalschematicsforUSBconnectionwithESDprotection.
Usedcomponents.
Ref Description Manufacturer Partcode
U15 ESDprotection STMicroelectronics USBLC62SC6
L37 Commonmodechoke Murata DLW21SN371SQ2L