lkml.org 
[lkml]   [2023]   [May]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
Date
SubjectRe: [PATCH 1/3] rtc: Add support for the SSD20xD RTC
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

\
 
 \ /
  Last update: 2023-05-30 01:07    [W:0.058 / U:0.196 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site