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abdullah_danish Posted - Oct 27 2008 : 1:21:47 PM
hi plz can any one tell me wht to do with mod 16 counter so tht the led glows for hexa number but not for decimal number plz help me
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abdullah_danish Posted - Oct 31 2008 : 09:49:52 AM
hi i really appreciate yur help ...can u mail me mod 16 counter circuit diagram using 7493 ic ..
on abdanish@hotmail.com .
mrgone Posted - Oct 28 2008 : 9:50:47 PM
You use an "AND" gate. Tie the two inputs to Qa & Qc and the output back to clear on the counter.

So when it tries to go to decimal "10" which is binary "1010" the two "1s" give a "true" output on the AND gate which activates the clear. If it is active "low" clear then you will need an inverter between the AND and the "Clear".

Wait, which is the MSB (Most Significant Bit)? I don't remember without looking at a data sheet. You might have to use Qb & Qd. You understand what I'm saying.....right?
pebe Posted - Oct 27 2008 : 1:45:44 PM
Can you give us a circuit?

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