15 Nov
2009
15 Nov
'09
11:31 p.m.
Hi folks,
I don't know if it's a fact of certain interest...
I found a DEC M841 Omnibus printer interface with a Fairchild "F 7429DC"
additionally stamped "DEC8881". As I think the DEC8881 is considered one
of the harder to find chips, this could be interesting. I know that many
of the DECxxx ICs are pin compatible to standard 74 TTL or Signetics 82
TTL devices so this could be found out by reading the TI data book as
well. But I've heard of signal quality, speed and other selection issues
making those a DECxxx IC. Perhaps that's a legend? Or at least partially?
Best wishes,
Philipp :-)
p.S.: Here's a picture: http://pdp8.hachti.de?gallery/misc