How can I do this? (12 or 24 vdc logic)
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Original Message
From: Dave Sheridan <dsherida@a...>
To: <
Sent: Friday, March 10, 2000 9:30 PM
Subject: [noparse][[/noparse]STAMPS] How can I do this? (12 or 24 vdc logic)
>
>
> Hi,
>
> What digital logic family could I use to interface to a Basic Stamp 2 that
could
> operate on 12vdc or 24vdc logic so that my field circuits would have
better
> 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.
Good luck,
Ray McArthur
Comments
Thanks for your help too. I missed your message at my other address.
eGroups says I'm subscribed on both of my addresses but this address is the
only one receiving messages from basicstamps@egroups.com
Sincerely,
Dave
Original Message
From: rjmca <rjmca@w...>
To: stamps parallax <basicstamps@egroups.com>
Sent: Saturday, March 11, 2000 2:53 PM
Subject: [noparse][[/noparse]basicstamps] Re: [noparse][[/noparse]STAMPS] How can I do this? (12 or 24 vdc logic)
>
>
Original Message
> From: Dave Sheridan <dsherida@a...>
> To: <
> Sent: Friday, March 10, 2000 9:30 PM
> Subject: [noparse][[/noparse]STAMPS] How can I do this? (12 or 24 vdc logic)
>
>
> >
> >
> > Hi,
> >
> > What digital logic family could I use to interface to a Basic Stamp 2
that
> could
> > operate on 12vdc or 24vdc logic so that my field circuits would have
> better
> > 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.
>
> Good luck,
> Ray McArthur
>
>
>
> eGroups.com Home: http://www.egroups.com/group/basicstamps/
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>
>
>