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4017B Decade counter (5-stage Johnson counter)
Navigation The Beastie Zone contains detailed information about lots of useful integrated circuits, including test circuits with easy to follow prototype board layouts... | | | 1. Pin connections | More updated pages... | 2. What is a decade counter? | DDE2 : Logic Gates | 3. Basic operation | DDE3 : Astables | 4. RESET and ENABLE inputs | DDE4 : Monostables | 5. Sequencing | | 6. Inside the 4017 | Safety Lights Project | 7. Links | Biscuit Tin Alarm | | | Bookshelf | | | |
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Learn about the 4017 by building the DOCTRONICS Light Chaser Project: | Buy using PayPal™-------------------------------------------------
Top of Form Bottom of Formprice: £ 6.00 + P&P
USD, and Euro payments accepted... | DOCTRONICS Light Chaser construction kit | |
1. Pin connections
Buy from Rapid... | 4017B pin connections |
The 4017 decade counter has ten outputs which go HIGH in sequence when a source of pulses is connected to the CLOCK input and when suitable logic levels are applied to the RESET and ENABLE inputs.
2. What is a decade counter?
The counting action of the 4017 can be understood from the graph below: | Counting action of the 4017 decade counter |
Click the button to draw the graph.
Just one of the individual outputs is HIGH at a time. This is quite different from the behaviour of a BCD counter like the 4510 in which it is the combination of 0's and 1's which represents the count.
As you can see, the ÷10 output is HIGH for counts 0-4 and LOW for counts 5-9.
The 4017 is an extremely useful device for project work and is used in the Games Timer and in various DOCTRONICS construction kits including the Light Chaser and theMatrix Die. When you are familiar with the 4017, you will be able to think of lots of useful
Navigation The Beastie Zone contains detailed information about lots of useful integrated circuits, including test circuits with easy to follow prototype board layouts... | | | 1. Pin connections | More updated pages... | 2. What is a decade counter? | DDE2 : Logic Gates | 3. Basic operation | DDE3 : Astables | 4. RESET and ENABLE inputs | DDE4 : Monostables | 5. Sequencing | | 6. Inside the 4017 | Safety Lights Project | 7. Links | Biscuit Tin Alarm | | | Bookshelf | | | |
-------------------------------------------------
Top of Form Bottom of Form
Custom Search
Learn about the 4017 by building the DOCTRONICS Light Chaser Project: | Buy using PayPal™-------------------------------------------------
Top of Form Bottom of Formprice: £ 6.00 + P&P
USD, and Euro payments accepted... | DOCTRONICS Light Chaser construction kit | |
1. Pin connections
Buy from Rapid... | 4017B pin connections |
The 4017 decade counter has ten outputs which go HIGH in sequence when a source of pulses is connected to the CLOCK input and when suitable logic levels are applied to the RESET and ENABLE inputs.
2. What is a decade counter?
The counting action of the 4017 can be understood from the graph below: | Counting action of the 4017 decade counter |
Click the button to draw the graph.
Just one of the individual outputs is HIGH at a time. This is quite different from the behaviour of a BCD counter like the 4510 in which it is the combination of 0's and 1's which represents the count.
As you can see, the ÷10 output is HIGH for counts 0-4 and LOW for counts 5-9.
The 4017 is an extremely useful device for project work and is used in the Games Timer and in various DOCTRONICS construction kits including the Light Chaser and theMatrix Die. When you are familiar with the 4017, you will be able to think of lots of useful