> sorry...C  like about -78C to be exact.  Even if they exist...$$$$$$$$ so
I dont think they want to do that

With that low temperature you will have some problems with discrates and
passives too - so even if you find a uC you have to carefully select the
external components.

Tamas



On Jan 11, 2008 6:27 PM, alan smith <micro_eng2@yahoo.com> wrote:

> sorry...C  like about -78C to be exact.  Even if they exist...$$$$$$$$ so
> I dont think they want to do that
>
> "M. Adam Davis" <stienman@gmail.com> wrote:  C or F
>
> ;-D
>
> How far below -40? Such chips exist, but you ought to consider
> specifying a lower bound.
>
> I can test and then send you a tube of -41 to 85C chips, if that'll
> fit the bill.
>
> When I worked with people embedded Rabbit core modules for use in
> antarctica they used heaters to bring it up to -40, then started the
> micro. Don't ask me what they used to control the heaters. :-)
>
> -Adam
>
> On Jan 10, 2008 6:58 PM, alan smith wrote:
> > Anyone know of a micro that is rated below 40 degrees?
> >
> > Might be a moot issue if the support chips won't operate that low either
> I suppose.
> >
> >
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