Attention 1802 fans...

From: Ben Franchuk <bfranchuk_at_jetnet.ab.ca>
Date: Mon Sep 30 21:11:00 2002

Ross Archer wrote:

> The 1802 was used in quite a number of Amateur radio ("ham")
> satellites.
> It was one of the first relatively "rad-hard" micros from
> what I remember
> reading, due in large part to its CMOS construction. I
> guess those days
> there were a few PMOS CPUs (8008, 8080) and a few NMOS CPUs
> (Z80, 6502,
> 9900JL), and exactly one CMOS CPU -- the CDP1802. So it was
> 1802 or bust. :)
The other CMOS chip at the time was the PDP-8 on a chip.
The 1802 was I think was a special CMOS version that was
latch up and rad-hardened. Several CPU's are rad-hard but
  the 1802 was the first cheap one.
Received on Mon Sep 30 2002 - 21:11:00 BST