Sequential Circuits

Ripple counter

We can attach more flip-flops to make larger counter. We just use more flip-flops in cascade and give output of first to the clock of 2nd and output of 2nd to clock of 3rd and so on. This way every flip-flop would divide frequency of the clock by 2 and hence we can obtain a divide by larger value circuit. Let’s see how we can make larger counters:

And following waveforms would illustrate how the above circuit does counting. It is actually a MOD-8 counter so it would count from 0 to 7 and then again reset itself as shown:

With every negative edge, count is incremented and when the count reaches 7, next edge would reset the value to 0.

These waveforms represent count as (Q3 Q2 Q1) 2.

Hence we can design a MOD-2n counter using n flip-lops in cascade

13 Replies to “Ripple counter

  1. Hi there this is somewhat of off topic but I was wanting to know if blogs use WYSIWYG editors or if you have to manually code with HTML. I’m starting a blog soon but have no coding expertise so I wanted to get guidance from someone with experience. Any help would be greatly appreciated!

  2. I got what you mean , appreciate it for putting up.Woh I am delighted to find this website through google. “I would rather be a coward than brave because people hurt you when you are brave.” by E. M. Forster.

  3. Pretty section of content. I just stumbled upon your website and in accession capital to claim that I acquire actually loved account your weblog posts. Anyway I’ll be subscribing for your feeds and even I fulfillment you get entry to persistently fast.

  4. hello there and thank you for your info – I’ve certainly picked up something new from right here. I did however expertise a few technical points using this website, since I experienced to reload the site many times previous to I could get it to load correctly. I had been wondering if your web hosting is OK? Not that I am complaining, but slow loading instances times will very frequently affect your placement in google and can damage your high quality score if advertising and marketing with Adwords. Well I am adding this RSS to my e-mail and can look out for a lot more of your respective exciting content. Ensure that you update this again very soon..

  5. My developer is trying to convince me to move to .net from PHP. I have always disliked the idea because of the expenses. But he’s tryiong none the less. I’ve been using Movable-type on numerous websites for about a year and am worried about switching to another platform. I have heard good things about blogengine.net. Is there a way I can import all my wordpress content into it? Any help would be greatly appreciated!

Leave a Reply

Your email address will not be published. Required fields are marked *