[sdiy] 4017 not stepping.
Bob Devries
bdevries at gil.com.au
Wed Sep 8 14:01:18 CEST 2004
It's also a good when testing on a bread-board, to tie the clock pin via say
4k7 to ground. Remember that this is CMOS. If it isn't tied to a rail, it
won't know whether it is arthur or martha.
--
Regards, Bob Devries. Dalby, Queensland, Australia.
Faith isn't faith until it's all you're holding on to.
http://e4god.com/freeblogs/bdevries/
----- Original Message -----
From: "Bob Devries" <bdevries at gil.com.au>
To: "Julian" <julian at 22host24.com>; "Synth DIY"
<synth-diy at dropmix.xs4all.nl>
Sent: Wednesday, September 08, 2004 9:49 PM
Subject: Re: [sdiy] 4017 not stepping.
> Both reset(15) and enable(13) need to be connected to 0V.
> --
> Regards, Bob Devries. Dalby, Queensland, Australia.
> Faith isn't faith until it's all you're holding on to.
> http://e4god.com/freeblogs/bdevries/
>
>
> ----- Original Message -----
> From: "Julian" <julian at 22host24.com>
> To: "Synth DIY" <synth-diy at dropmix.xs4all.nl>
> Sent: Wednesday, September 08, 2004 9:36 PM
> Subject: [sdiy] 4017 not stepping.
>
>
> > In continuation of my mutterings about 4017 decade counters a while
back,
> ive plugged a few bits into the breadboard.
> >
> > And then i stripped it right back to the basic when i had no sucess.
> >
> > 4017 and a 9v battery, connected to pins 16 and 8.
> >
> > Output zero, pin 3 shows 9v. Touching a 9v lead to pin 14 (clock)
should
> make the output swap, but it dosnt.
> >
> > So far as i understand it, i shouldnt have to, but ive tried running the
> enable output to ground also.
> >
> > So am i being blind somewhere? Or are these 4017 chips *very* easily
> killed or somthing (i havent actually abused it at all, so far
> > as i know)
> >
> > Thank you,
> >
> > Julian
> >
> >
>
>
>
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