Re: Please suggest a time delay toggle switch

mingyan_chow@xxxxxxxxxxxx wrote: 
I need a CMOS 4XXX toggle switch it's flip flop output is either high
or low while powered on doesn't matter. But if you press the buttom for
5 seconds, it automatically change state and retains at that state even
when you release the buttom until you powered off. Please suggest ,
Thanks.


In the earlier thread, you indicated that the 5 second
circuit worked for you, so you can use it again.  I assume
the decade counter circuit also worked. Use the same decade
counter circuit (with one change) and the 5 second delay
circuit that were posted in response to your earlier posts.
The 5 second circuit increments the count stored in the decade
counter by + 1 after the switch has been pressed for 5 seconds.
The difference between this decade circuit is that you will use
2 to reset it instead of 3.  So the possible states of the
decade counter are 0 and 1.  If the counter is at 1 and
you press the button for 5 seconds, the count increments
by + 1 and goes to 2 - but 2 resets the counter

Ed
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