On Oct 16, 2006, at 2:00 PM, Sean Schouten wrote:

> Is there anyone here that can point me out what the exact differences
> are between the original 68k processor and the new embedded 68HC000
> concerning everything and anything except the pin-outs?

I think an 68xx000 is still pretty much a 68000; the "new embedded"
chips you're thinking of are the "coldfire" processors which (very
sensibly) have completely different part numbers.  If you look at the
32bit CPU guide here:

http://www.freescale.com/files/shared/doc/selector_guide/SG1001.pdf

It says the 68HC000 is completely compatible with the 68000, except
it has 1/10th the power consumption.  The EC000 has 8/16 selectable
bus, and the SEC000 is static.  No more 64bit DIPs, though.

In addition to the coldfire processors (MCF5xxx), there are also the
68xx3xx chips, which add peripherals for a more microcontroller-like
system.

> I am interested to know because I am looking to replace a
> vintage one with it's modern cousin.

I don't think there is much point in that.  Did you have some
specific goal in mind?

BillW

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