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  #1  
Old 02-23-2011, 10:04 AM
jepoy jepoy is offline
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Default reset for J-K flip flop bcd counter

I made a counter using this design and it works fine.
and now Im planning to make a reset button for it but I don't know how to do it. I already looked at the j-k flip flop datasheet and read its truth table then tried changing the J or K input to "0" but it didnt reset.
Need help here. ( ;
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  #2  
Old 02-23-2011, 12:01 PM
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Georacer Georacer is offline
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Pins 3 and 8 of the 7476 are clear pins activated on LOW. They work asynchronously. Try them out.
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  #3  
Old 03-01-2011, 11:58 AM
jepoy jepoy is offline
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I tried but it only pause the counting.
should I do it on all 7476 IC's?
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Old 03-01-2011, 12:45 PM
jepoy jepoy is offline
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nvm...
thanks for the help great man Geo. ( ;
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  #5  
Old 03-01-2011, 03:24 PM
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Yes, as I guess you found out, you must reset all 4 JK-FFs simultaneously for the counter to return to 0.
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Related Site Pages
Section Title
Video Lecture JK Flip-Flop - Digital
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