Part A: Basic working of 4017 | Cascade and make 25 LED chaser circuit

In this video, I've explained the method to Cascade more than one CD4017B Decade Counter. I've also explained the basic working and functions of all the pin of this IC. I hope you like this video.

In this video, I've used
Decode counter BC4017B
AND GATE sn7408 (You can also use BC4081)
Timer IC NE555N
and
25LEDs
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Pin description of BC4017B:
Power pins:
16= +Vcc
8= GND
Control pins:
15=Reset
14=Clock input
13=Clock enable
Output Pins:
1 to 7 and 9 to 11
pin 12 is an output pin and it divides the input frequency by 10, output will have a 50% duty cycle.
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AND gate video Link (With IC 7408):
   • SN74LS08 | AND gate IC 7408 explanati...  

Digital Electronics videos (Logic gates, number systems, flip-flop, counters):
   • Digital Electronics Theory and Practical  

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