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Lpc2000

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Message

Re: Supply Current. Lots additional information

2005-12-19 by lpcmattbrrtt2005

The first digit subsequent to the date code will be either a "-
", "A", or "B", indicating the revision of the chip.

--- In lpc2000@yahoogroups.com, "lp2000c" <lp2000c@e...> wrote:
>
> 
> --- In lpc2000@yahoogroups.com, "philips_apps" <philips_apps@y...> 
> wrote:
> > 
> > The higher current during active mode is due to an chip failure 
on 
> the
> > first devices, which have been used to build evaluation boards. 
New
> > devices will not draw higher current during active mode on Vbat 
but
> > still draw the 15-20 uAs.
> > 
> > THIS INFORMATION IS SPECIFIC FOR THE LPC2130 series
> > Power down current on the first devices was measured around 140 
uAs,
> > keeping all the RAM intact. Our latest lot with some fixes 
brings 
> this
> > value down to approx 50 uAs. 
> 
> How can one tell whether a given chip is one of the "first 
devices" 
> or "latest lot"?  Was the device rev bumped up? Can we tell by 
date 
> code?
> 
> Any ETA on an errata sheet for these devices?
>

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