29 Aug
2003
29 Aug
'03
2:05 p.m.
From: "John Honniball"
<coredump(a)gifford.co.uk>
Peter Turnbull wrote:
Many ADC had a large number of replacements. The trick is finding
them. There was no uniform part numbering for these, like was done
in the TTL world.
Dwight
It's over 10 years old, and it's
microprocessor-compatible, but it's an
analogue to digital converter chip, not a computer. It's also not in
my spares box, and I need one. Does anyone have a spare? Or a data
sheet?
I only have a couple of ZN428 chips, and the data sheet for them. I may
have data for the ZN448 -- I'll have a look. It was a Ferranti part,
if that helps at all.