I was going through some of my older Microchip parts and stumbled across a
Microchip part that is marked:

        76001
        ES A3

That's all, nothing else (not even a logo). The obscure marking is really
surprising to me, so I'm curious what it is.

It is an 18-pin, plastic DIP part with no Microchip logo on it. There is no
other marking on the face of the chip except the aforementioned two lines
(the printing is not laser etched). The ES indicates that it is an
engineering sample. I believe I received this around the year 1999, but for
the life of me, I can't remember what Microchip part it is -- it might not
be a PICmicro.

It's simply not worth wasting Microchip's time on this, so I thought I'd ask
here instead. Does anybody know for sure what part this is? A search on
Microchip's search engine came up empty. I am absolutely 100% positive this
part came from Microchip. Maybe someone else who also was a Third Party
member back then remembers receiving this part from Al Lovrich at Microchip?

Thanks very much.

Best regards,

Ken Pergola

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