STM32G0 - how to achieve 40nA shutdown current as per documentation?

[Coratron]

Hi I am using an STM32G071 Nucleo board and would like to know if it is possible to achieve the advertised current of 40nA in shutdown mode.

I have no problems entering shutdown mode but the observed current with my nRF PPK2 is closer to 1uA. I have disabled the RTC.

1) Is the current of 40nA possible on the Nucleo board?

2) Are there any required steps before entering shutdown mode?

Thank you

[Piranha]

It kind of is withing the specs, but typically the devices measure to... the typical values.

Another possibility is that SWD pins could be leaking some current to/from the ST-LINK through the internal pull-up/down resistors, which are enabled by a reset.