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| Micro Controllers Discuss all aspects of micro controllers - building them, coding them, etc. All controllers are welcome - PIC, BASIC, Z8 Encore!, etc. |
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13th April 2009, 04:28 PM
| #1 |
 Need info on 555 monostable into a 4017b chip
hi i could do with just any general info on how a 555 monostable into 4017b circuit works, or uses of this circuit and the positive points and negative points Thanks | |
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13th April 2009, 04:44 PM
| #2 |
No, do your own research on the web then do your own homework.
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13th April 2009, 05:05 PM
| #3 |
thanks alot mate done my own reasearch but i thought you could help more but maybe i was wrong | |
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13th April 2009, 05:14 PM
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Lots of 555 & 4017 info on the net.  | |
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13th April 2009, 05:19 PM
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Thanks alot mate
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13th April 2009, 05:25 PM
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Not so long ago people used to have to buy books or go to libraries to get the information they needed. Now the world wide web is at our fingertips but for many it doesn't seem good enough. | |
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13th April 2009, 05:32 PM
| #7 | |
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13th April 2009, 05:34 PM
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hense why im using this website to try and find information out via the internet
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13th April 2009, 05:36 PM
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no i was after some information like the circuit idea you showed me that i could see how it worked or just some possible uses for it
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13th April 2009, 05:38 PM
| #10 |
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Google "555 CD4017" should show thousands of hits. 555 is a timer, 4017 a Johnson counter.
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13th April 2009, 05:39 PM
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13th April 2009, 05:42 PM
| #12 |
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This site has info and projects using the 555 and 4017. 555 and 556 Timer Circuits 4000 series CMOS Logic ICs | |
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15th April 2009, 09:12 PM
| #13 |
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Sorry for what seems to be a basic question... In many of these 4017 circuits (like Bill's in post #4), one of the outputs is connected to a Darlington pair (TIP 120) through a 10 K resistor, while many other times no resistor is used to go directly into a transistor. The 4017 outputs only seem to deliver about 10ma, so how should the resistor value calculated? | |
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16th April 2009, 12:19 AM
| #14 |
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You wouldn't need it if it only going to put out 10mA some chip are made to drive a transistor from the output. The output is limited in the chip.
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| Tags |
| 4017b, 555, chip, info, monostable |
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