How can I do this? (12 or 24 vdc logic)

ArchiverArchiver Posts: 46,084
edited 2000-03-11 - 23:40:00 in Microcontrollers

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

  • ArchiverArchiver Posts: 46,084
    edited 2000-03-11 - 23:40:00
    Hi Ray,

    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/
    > http://www.egroups.com - Simplifying group communications
    >
    >
    >
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