nRF54L LFXO and LFLPRC

[WesC]

we don't seem to have power numbers for the 54L, but in the 5340 datasheet it shows the LFXO (0.16uA) used less power then the LFRC (1 uA). 

Is that true with the NRF54L with the LFXO and the LFLPRC?

and if so, do we know if the power numbers we show for SYSTEM ON IDLE and SYSTEM OFF are with the LFLPRC or LFXO? 

 The System OFF with GRTC is with the LFXO, but now just not sure about the SYSTEM IDLE GRTC since the LFLPRC is default

[Hieu]

Hi Wes,

LFXO run current is lower LFRC. It also brings a few benefit that saves even more current:

- No need for the periodic LFRC recalibration

- Shorter RX windows thanks to higher LFCLK accuracy

As for listed numbers, I see that the datasheet only lists no LFCLK or LFXO:
https://docs.nordicsemi.com/bundle/ps_nrf54L15/page/chapters/current_consumption/doc/current_consumption.html

Hieu