Hi guys,
I was going thru a pile of parts I had and found a brand new Signetics SC80C451ACON64, 8-bit microcontroller. Was able to find an old datasheet on it, has 6 8-bit ports, 1 4-bit port. 64 pin dip, 600 mil wide. No ROM, apparantly runs off external memory.
Is there an Arduino like environment for a chip like this?
This bad boy is bigger than 2 entire Mini-Pros, but has all those complete 8-bit ports!
Robert
Is there an Arduino like environment for a chip like this?
Nope. 
I think I have one of those somewhere...
Note that this is a 12MHz chip that executes most instructions in 12 clock cycles, making it about as fast as a 1MHz AVR.
With some effort, you could probably put BASIC52 on it, which is one of the things that people did in times B.A. That would add interpreter overhead as well, making it REALLY SLOW, but nevertheless people managed to do many interesting things with BASIC52...
There are vendors selling xxx52-style CPUs even today (faster, bigger, etc), so it might not even be wasting your efforts on a totally obsolete architecture. But I wouldn't recommend it!
An Arduino Mega has plenty of complete 8bit ports...
Thanks for the replies. I guess this monster is going back in the drawer, the Arduino is just too convenient to use for my current needs.
yep set it next to my scavenged intel chip, will kick the crap out of arduino but needs external roms and ram, thats how it was, and that is how some are still today
luckily mine is on a working board with 32k (256kbit) sram and 512k byte rom, so if i ever dare venture into its code I am set (tbh its going to be REAL hard not to play with that sram)