28 Jun
2006
28 Jun
'06
5:38 p.m.
Looks interesting. I wonder if you can get 1-offs anywhere (I've not
looks yet). On the other hand, the 26LS3x's and the MAX232 are easy to
obtain (even though they take up more board area).
Just looked at DigiKey--you can get them, but I've seen cheaper MPUs! You could also sample them from Analog.com if your day job
qualifies you.
What day job? I doubt if 'privately repairing old HP calculators' counts :-)
As far as board space, if one were using DIPs,
it'd be a hard call. The AD
IC is a 24 pin PDIP (also comes in SOIC).
I'd rather keep buffers that talk to the outside world in
pin-through-hole DIPs, since they're likely to get zapped at some point,
and it's a lot easier to replace a (socketed?) DIP than a SOIC. Anyway,
board area (and component count) are not too important for 1-off
prototype designs IMHO.
-tony