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View Full Version : Asynchronous up counter


jonbrutal
Sep25-09, 02:55 AM
Hi everyone

I built a 4 bit asynchronous counter:

]http://img257.imagevenue.com/loc211/th_64901_1253864766223_122_211lo.jpeg[/URL]


, the sequence is

1,2,3,4 right up to F and then 0,1,2,3....

My question is why doesnt the up counter start with 0...can someone explain it to me.Is this the correct sequence for a asynchrbous up counter.

Thank you & regards