Lpc2000

I have tried to see what is the lowest power during sleep, and I think if
you are expecting anything near to 10uA, I doubt if you could achieve on LPC
series. Mine came down to about 300uA on 2106 but not further. Newer one I
tried on 2132, it consumes more than 2106 during sleep, may be because it
has its own internal 1.8v regulator. Probably that extra current is consumed
by that regulator.

I would be trying lowest power regulators later (3.2uA for 3.3V and 18uA for
1.8V) probably at that time I can let you know what are my consumption
levels.

Thanks
Yug

On 4/5/06, Steve Franks <stevefranks@...> wrote:
>
>  Hi all,
>
> I'm beginning to get curious about power-consumption on 2103 and 2148
> series.  It's unclear to me from the UM if the watchdog runs in both
> idle and power down modes.  It looks like it initialtes a 'real'
> reset, so it must be able to wake the part out of power down, but
> obviously only if it's clock is running.  I've got some mote-stuff on
> AVR I'd like to try moving to LPC, but you really need to get the
> sleep down to 10uA for it to be effective, and be able to wake up
> without power-hungry external devices.  The AVR uses the watchdog to
> wake up from 10uA sleep.  Also, the datasheet I have from novermber is
> filled with "tbd"'s for all the power consumption specs, so if anyone
> has hard data, that would be appreciated.  Can the 2148 come out of
> power-down from the rtc?  It doesn't appear to do a 'hard' reset like
> the watchdog, so probably not?  I see that the rtc on the 2103 will,
> in fact, wake from power-down, so maybe I'm worng about the 2148.
>
> Anyone else implemented a battery powered system that mostly sleeps in
> an LPC?  Pitfalls?
>
> Thanks,
> Steve
>
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