Thanks for your reply....
Friend, I have shown your reply to my friend and he replied :
"================================================================================
The revised circuit will power-up with pin 11 of the 4093 high - and the 4060 reset.
But that is not necessarily the best outcome.
Even in areas where the mains supply is reliable - there are occasional outages.
And the briefest of interruption in supply - will invoke the power-up response.
A non-technical end user - may not be present -
May not know there has been an outage -
May not know/recall that anything is required of him - etc.
What happens at power-up always matters.
You need to know exactly how the circuit will behave when power returns -
And you need to be certain that that's how you want it to behave.
If the alarm is ringing when the power returns - you want the 4060 timer to start
And if the alarm is NOT ringing when the power returns -
You want the 4060 timer to wait until the alarm does ring.
This is true - whether you have one outage a day - or one a year.
The reliability - or otherwise - of the mains supply is not important.
It should be possible to achieve the desired results
By making the correct connections between the the latch - and the 4060 timer.
But as I said.....
AT THIS STAGE - NONE OF THIS MATTERS.
What you need to know now - is whether or not the 4093 actually produces a
high pin 11- when the alarms sounds.
If it does - you can worry about how best to use that high to control the 4060
If it doesn't - you'll have to look elsewhere for a solution.
"====================================================================================
Alec , This is the message my friend replied so I thought that I can share this with you... Because I dont have enough knowledge of
electronics so I also asked my friend...........
So Alec, what do you say about this....
Thanks