nrf53 voltage debug port

Question

Hello,
I'm prototyping using nrf52832 with BMD-300. On my new board I design, I need 3.6V tension (and not just 3.3), so I thought setting everything to 3.6V, including the nrf. Is debug port is ok to get 3.6V? I'm not sure it would affect the SWD lines, and I'm worring about the VDD OUT line too. Is it a matter for the SWD probe?
Kind regards,

Nguyen Hoan Hoang · Accepted Answer

It seems like you are using some devices that has a min of 3.6V. The nRF can handle 3.6V at max. It would not damage it but operating at max capacity would reduce the life time of it. As for SWD probes, they usually has a level shifter that can operate on a certain range. The IDAP-Link CMSIS-DAP SWD/JTAG for example can handle 1.75V-3.6V. If you are using the one from the DK, it might not have the level shifter as it is built only for the onboard nRF chip.

nrf53 voltage debug port

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