Pulse without a 555 and a Counter issue.

Thread Starter

haxxx

Joined Feb 14, 2009
35
1.)When my counter IC (4029)counts from zero to one pin 7 Goes high (7.5v)
I want to use that rising edge to pulse a second circuit. Is there any other way to get a pulse other than using the 555, if not is it okay to invert that pin 7 output and go straight to pin 2 Of the 555.
2.) Also another little problem, A backward count from zero to nine also makes pin 7 go high. I understand y it happens based on the counters 4 outputs but is there any way around it, that is: “zero to one: yes” “zero to nine: no”.

Thanks,
Haxxx.
 
Last edited:

Thread Starter

haxxx

Joined Feb 14, 2009
35
I based it on the attached circuit but i want to use pin 7 on the 4029 to pulse a relay when the count moves from zero to one. and preferrably not
when it counts backwards from zero to nine.
Thanks.

Haxxx
 

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