nRF52840 Unused USB bus

[jjvicentenavarrete]

Hi,

How should the USB pins be handled in case I don´t want to use them? Should they be just left unconnected?

What about VBUS pin?

Thanks and regards,

Juanjo

[Stian Røed Hafskjold]

D+ and D- can be left unconnected and VBUS connected to GND. Please look at the circuit config num 6: http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52840.ps/ref_circuitry.html?cp=2_0_0_6_2_5#unique_1012976

[choonshin]

Hi Stian,

Can D+ and D- be also connected to GND? The reason why I'm asking is I don;t want to us micro-via at VBUS (GND connected) pad.

Thanks,

Choon

[Stian Røed Hafskjold]

So you want to have a trace that goes to VBUS from GND through D- and D+? I guess it's the nRF52840 WLCSP package, since you are asking? Can you go to VBUS from K10?