On September 4, 2005 05:28 pm, Olin Lathrop wrote:
> John Nall wrote:
> > Any suggestion as to where I might find such a cross-reference
> > would be greatly appreciated.  Failing that (or in addition to
> > that) a suggestion as to a possible replacement for the 14C000
> > would also be greatly appreciated.
>
> 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.

One of the competitors to PIC describes most 12bit A/Ds as 9bit A/D plus 
3bit random number generator.

With all the digital powerline noise that happens, I guess there is some 
truth in taking the last couple of bits with a grain of salt.
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