Lpc2000

--- In lpc2000@yahoogroups.com, "pavel.rangelov" <pavel.rangelov@...> 
wrote:
>
> Hello,
> We are developing a battery powered application using LPC2212. And we
> have a strange problem with the core current consumption. After the
> core went into powerdown mode the core current is about 30uA. Then an
> external circuit removes 3.3V for the peripherials, but the core
> current consumption rises to 100uA. Any suggestions?
>
You probably have floating pins on the CPU. Add pull-ups or pull-downs 
(10k) to all pins, even the ones not connected, while checking the 
curren consumption. Do this one pin at a time. When you have found the 
offending pins, permanently add the pull-ups or pull-downs.
Lars Marmsater