Lpc2000

Hello Bob,

Very helpful information.  

Thanks so much
-Jeff


--- In lpc2000@yahoogroups.com, "lpc2100_fan" <lpc2100_fan@y...> 
wrote:
> 
> Hi Jeff,
> 
> some measurement from our team:
> Running at 60 MHz with peripherals enabled from Flash approx. 45 
mAs,
> running from RAM 52/53 mAs, external 12 MHZ PLL *5 to 60 MHz. All
> preipehrals were anabled.
> 
> The core still uses 1.8V but the 1.8V are generated by a DC/DC
> converter inside the chip.
> 
> Specification is 3V for function, reducing the voltage lower than 
that
> is OK but we want to use the Brown Out Detect which hit somewhere
> around 2.9V.  Absolute no problem until the BOD hits. We even tried 
to
> just generate an interrupt with BOD at 2.9 and the device worked 
down
> to approx. 2.6V where the lower threshold BOD hit us with a Reset. 
> As far as our tests can tell, the LPC2138 works actually down to 
2.6V
> but we won't try that. The upper level BOD will be used in our 
design
> to save a few critical parameters into the Flash and then we go to
> Power Down. 
> 
> hth Bob
> 
> 
> --- In lpc2000@yahoogroups.com, "wittrockjeff" <jwittrock@m...> 
wrote:
> > 
> > Does anyone have some rough estimates of supply current for the 
> > LPC213x family running at 60MHz with peripherals enabled.  In 
> > particular I want to use the LPC2138 device.
> > 
> > Active mode supply current is still <TBD> in the datasheet.
> > 
> > Since this device uses 3.3V for both the core and I/O, I'm 
wondering 
> > how close it will be to the LPC210x family.  Does the LPC213x 
still 
> > use 1.8V for the core, and just an internal regulator?
> > 
> > As an aside, I'm also wondering if the part will remain 
functional 
> > (reliable?) if the supply voltage drops to 2.85V?
> > 
> > I would measure one myself, but don't have a board yet, just some 
> > sample parts.
> > 
> > Thanks,
> > Jeff W