Olin Lathrop wrote:

> > The 14C was a weird one of a kind PIC.  There is no direct 
> replacement.  If
> I remember right, it had a 14 bit A/D, which is something no other PIC 
> has
> even today.  If 12 bits is enough, use the 30F3013.  It won't be pin
> compatible and of course not code compatible, but it should do 
> everything a
> the 14C did except for missing a few A/D bits.  If you really need 
> more than
> 12 bit A/D then you have to use an external A/D with a PIC or some other
> micro that has wider A/D like Cygnal.


Not sure about how many A/D bits are required -- need to look more 
closely at the article.  12 bits may very well be enough.  Not being 
code-compatible is not a real problem, since the algorithm is well 
stated, and that is what counts.  Pin compatible is, of course, not a 
problem at all.   However -- the 3013 data sheet does not show the 
"programmable reference and comparators" requirement.  Am I missing 
something?  

John
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