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4017B Decade counter-top (5-stage Johnson counter)  �

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The  Beastie Zone contains detailed details about lots of valuable integrated brake lines, including evaluation circuits with easy to follow original board designs... |  | �

1 . Pin connections|  More current pages...

2 . What is a ten years counter? |  DDE2: Common sense Gates

a few. Basic operation|  DDE3: Astables

4. RESET and ENABLE inputs|  DDE4: Monostables�

5. Sequencing| �

6. Inside the 4017|  Safety Lamps Project

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1 . Flag connections

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4017B pin cable connections

The 4017  decade counter-top has 10 outputs which go Rich in sequence when a source of signal is connected to the CLOCK input and when ideal logic levels are put on the RESET and ENABLE advices. �

installment payments on your What is a ten years counter?

The counting actions of the 4017 can be comprehended from the chart below:

Counting action of the 4017 decade counter

Click the switch to pull the graph.

Just one of the individual outputs is definitely HIGH each time. This is quite different from the behavior of a BCD counter like the 4510 in which will it is the combination of 0's and 1's which represents the count. From this article you can see, the ÷10 output is HIGH intended for counts 0-4 and LOW for is important 5-9. The 4017 certainly a useful device for project work and is used in the Games Timer and in various DOCTRONICS building kits which includes the Light Chaser and theMatrix Expire. When you are knowledgeable about the 4017, you will be able to consider lots of useful applications. In house, the 4017 contains five bistable subunits. These are connected with each other in a style known as a Johnson counter. The outputs of the bistables are decoded to achieve the ten individvual outputs. �

3. Fundamental operation.

This is actually the circuit diagram for a 4017 test circuit:

4017 10 years counter check circuit

The 4017 is built to drive higher current tons, so it is ALRIGHT to connect LEDs with series resistors directly to its results. Click the  button to open a Yenka© simulation of this signal. The lab-created circuit works on the 5 Sixth is v power supply.  Yenka© is currently designed for free download for home users from:  http://www.yenka.com/. This is certainly a fantastic provide from Crocodile Movies Ltd, the creators of Yenka©: don't miss it! You should assemble the prototype board version from the circuit in stages, checking out that each level is working properly prior to proceeding the to the next level. To see the 4017 in action, you should build an astable. The best way to do this can be using a 4093 Schmitt trigger NAND door integrated routine. Start by building the astable section with your prototype panel: �

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4093 Schmitt NAND astable

The Schmitt NAND astable is described in more detail in the 4093 page incorporated into the Beastie Sector. It is good practice with CMOS circuits to insert a decoupling capacitor, 47 µF or 100 µF, across the power supply. (This helps you to prevent the transfer of spikes along the power supply rails. ) Next add the 4017. The heart beat output through the astable is definitely connected to the CLOCK input. Intended for normal procedure, the TOTALLY RESET and ENABLE advices must be linked to 0 Sixth is v:

Connecting the astable to the 4017

2.   Beasties will need power items! Don't forget to hook up pin 16 of the 4017 to +9 V and pin 8 to 0 V. Connect a single LED with a 680  series resistor to output 0 of the 4017. Count the pulses. The output 0 LED should flash once for each and every 10 sensations of the LED connected to the astable. Continue, adding new...