[sdiy] Re: 10 step sequencer

[Harry Bissell Jr]

I'd suggest using a binary counter, driving a 4051...
(this is only eight steps...I don't remember if this
was
considered OK...)

You hook the incomming clock to the input of the
4051, the outputs will be high for the same period
that
the input clock is...

Two chips. Might use a 4520 counter and have 1/2
a counter left over...

H^) harry


--- Dave Krooshof <synthos at xs4all.nl> wrote:
> Thanks for looking into this, guys.
> 
> >  Now that I look at it. I'm pretty sure this last
> trick wont work.
> That's where I ended up as well, without
> breadboarding it.
> The enabler disables the counting, if I understand
> the sheet correctly.
> >  It looks
> >  like the ENABLE input on the 4017 holds the
> selected output high. I was
> >  thinking it turned the outputs on and off, but it
> doesn't. Looks like the
> >  AND gate trick is the easiest.
> Exactly This will be both a quick method, and easy
> enough to make.
> Lot's of wires that I will not cross (I'm taking
> that advice)
> 
> >  The 4081 is a quad CMOS AND gate, so you
> >  would need three of these to control all ten
> outputs.
> Yep. Got it.
> 
> Also, I think that the 4017+4081 is the best
> sollution, better then the
> 'oldschool'
> sequencing methods: I expect this stuff to work
> faster / correcter at high
> rates.
> 
> Thanks a bundle,
> 
> -- 
> --
> 
> groets,
> 
> _          >^v<        _
> 
> website http://www.dendriet.nl