Re: [PATCH 1/3] rtc: Add support for the SSD20xD RTC

Daniel Palmer
2023-05-29T23:06:29Z

Hi Alexandre,

On Tue, 30 May 2023 at 07:40, Alexandre Belloni
<alexandre.belloni@bootlin.com> wrote:
>
> Hello,
>
> On 17/05/2023 16:41:42+0200, Romain Perier wrote:
> > Newer SigmaStar SSD20xD SoCs contain a really low power RTC (300uA claimed),
>
> The low power RTCs are more on the side of a few tenth of nA. RV3028
> consumes 40nA, including the crystal. AB1805 consumes 14nA with an RC
> oscillator. It is funny how SoC vendors think they are low power ;)

To be fair to them I think the 300uA claim is for the whole SoC in
RTC-only deep sleep.
Whatever logic is powered on alongside the RTC to trigger wake up will
be part of that number I guess.

Cheers,

Daniel