Author Topic: delay  (Read 2605 times)

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Offline jorjTopic starter

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delay
« on: August 18, 2009, 02:09:19 PM »
How to calculate a delay of 3 minute in 555 device
I want the delay will be 3 minute in high and 3 minute in low and so on
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Offline dual

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Re: delay
« Reply #1 on: August 18, 2009, 08:20:11 PM »
Can you tell us the application of using a 555 Timer? Is it a class homework such that you'd have to use a timer rather than a software delay? It would be much easier to just implement delays using software in your microprocessor.

Otherwise, look again at this datasheet.

http://www.national.com/ds/LM/LM555.pdf

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Offline jorjTopic starter

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Re: delay
« Reply #2 on: August 19, 2009, 07:11:24 AM »
i only need to calculate
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Offline dual

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Re: delay
« Reply #3 on: August 19, 2009, 11:50:22 AM »
Okay so you should go and open the PDF file I have attached and go to Application Information.

It will provide you with all the information such as Supply Voltage, RC requirements, etc.

Goodluck
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Offline jorjTopic starter

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Re: delay
« Reply #4 on: August 19, 2009, 06:25:59 PM »
i will glad to receive more explanation
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Offline jorjTopic starter

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Re: delay
« Reply #5 on: August 20, 2009, 08:16:20 PM »
UP
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Offline Razor Concepts

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Re: delay
« Reply #6 on: August 20, 2009, 11:55:26 PM »
This is a very electronic related question, for those I ask here:
http://forum.allaboutcircuits.com/
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