# Chaining Binary Counters?

Discussion in 'Electronics Resources' started by JacobEdward, Apr 29, 2015.

1. ### JacobEdward Thread Starter New Member

Apr 29, 2015
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when I started looking for pre-configured binary counters (that's a lot of discrete components to put on a circuit board...) and discovered that a typical 4 bit binary counter is around 40 cents while 8 bit binary counters are like 10 bucks... Is it possible to chain a couple of binary counters together (sorta how shift registers are chained together)?

http://www.digikey.com/product-detail/en/CD4029BE/296-2046-5-ND/67275

2. ### Papabravo Expert

Feb 24, 2006
11,083
2,159
It is certainly possible. It's how things were done before there was an 8 bit part. A typical example would be the the 74LS161 synchronous counter.

3. ### JacobEdward Thread Starter New Member

Apr 29, 2015
23
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Great though is this a up/down counter?

4. ### JacobEdward Thread Starter New Member

Apr 29, 2015
23
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Lol, man, so this synchronous counter takes 4 input data lines? You wouldn't happen to have a tutorial handy that would explain how to use this thing would you? Going through the data sheet right now.

Feb 24, 2006
11,083
2,159
6. ### JacobEdward Thread Starter New Member

Apr 29, 2015
23
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yea... not sure if you read the first post, but I actually linked to that exact page... the page doesn't explain how a binary counter accepts 4 data lines...

7. ### absf Senior Member

Dec 29, 2010
1,654
443
Here's one way to connect 2x 74HC161 to become an 8 bit binary counter.

The preset inputs are used to start counting up from any 8 bit value eg 0-255. You can leave them out and just connect /load pin to logic high so it would always start counting from zero.

Allen

8. ### Papabravo Expert

Feb 24, 2006
11,083
2,159
You're right I did not follow the link to see what you were reading. I tried to answer the cascade question in the affirmative, and I was looking for material on preloading. Thing is, you may or may not be aware of the datasheet which exists for almost every part you can imagine. They are just chock full of useful pictures, diagrams, graphs, and charts. In the not so distant past engineers would collect libraries of databooks. Nowadays we just google them as in:
"74LS163 datasheet"