From: Dave Sheridan <dsherida@a...
Sent: Friday, March 10, 2000 9:30 PM
Subject: [noparse][[/noparse]STAMPS] How can I do this? (12 or 24 vdc logic)
> What digital logic family could I use to interface to a Basic Stamp 2 that
> operate on 12vdc or 24vdc logic so that my field circuits would have
> noise immunity than TTL or CMOS circuits?
***** Dave: *****
1) Differential line transmitters & receivers with twisted pair wiring
greatly improve noise immunuty & operate at 5V.
2) I have used CMOS 4000 series for years and love it. It operates on
3-15V, (some 18V), draws little current, and has a logic threshold of ~50%
of Vcc. I always observe some ESD care, but handling & soldering are the
same as any IC.