What is CD4017 IC | How to use CD4017 IC

Kiyani's Lab
12 Sept 202106:11
EducationalLearning
32 Likes 10 Comments

TLDRIn this video, the speaker explains the CD4017 IC, a Johnson decade counter with 10 decoded outputs. The video covers the pinout, logic symbols, and functioning of the CD4017 IC, including its use as a digital counter and its integration with a seven-segment display. The tutorial also includes a step-by-step guide to building a sample circuit using the CD4017 IC and a 555 timer IC, complete with LED connections and testing. Viewers are encouraged to subscribe to the channel for more informative videos.

Takeaways
  • 📌 The CD4017IC is a Johnson decade counter with 10 decoded outputs.
  • 🔌 The CD4017IC has a specific pin configuration, including ground (pin 8), VCC (pin 16), reset (pin 15), clock (pin 14), clock enable (pin 13), and carry out (pin 12), with the rest being output pins.
  • 📶 The CD4017IC operates as a counter, incrementing its output value by one with each clock signal it receives.
  • 📊 It functions as a BCD (Binary-Coded Decimal) counter, counting from 0 to 9, which is a 4-bit counter with 10 states.
  • 🔢 The CD4017IC includes a 5-bit Johnson counter and a 10-output decoder, enabling it to turn on corresponding outputs in sequence with each clock pulse.
  • 🖥️ The video provides a detailed explanation of connecting a 7-segment decoder to the BCD counter for visual output representation.
  • 💡 An example circuit using the CD4017IC is demonstrated, involving connecting LEDs and resistors to the chip's outputs.
  • ⏱️ The 555 timer IC is used alongside the CD4017IC to generate clock pulses for the counter.
  • 🔩 The script includes a step-by-step guide to assembling the example circuit, including connections to a 10k trim pot and a 10 microfarad capacitor.
  • 🎥 The video concludes with a test of the completed example circuit, showcasing its functionality.
  • 👋 The video host encourages viewers to subscribe to the channel and follow on social media for more educational content.
Q & A

  • What is the CD4017IC?

    -The CD4017IC is a Johnson decade counter with 10 decoded outputs. It is a digital counter that counts the number of times an event occurs and can represent the count in binary form on its output pins.

  • What are the main functions of the pins on the CD4017IC?

    -Pin 8 is ground, pin 16 is VCC, pin 15 is the reset pin, pin 14 is the clock pin, pin 13 is the clock enable pin, and pin 12 is the carry out pin. The remaining pins are the output pins.

  • What is the role of the clock input in a digital counter like CD4017IC?

    -The clock input is an essential part of the digital counter. When the counter receives a clock signal, its output value is incremented by one, representing the next state in binary.

  • Can you explain the concept of a BCD counter?

    -A BCD (Binary-Coded Decimal) counter is a type of counter that counts through 10 states, typically from 0 to 9. It uses 4 bits to represent each decimal digit, allowing it to count in a decimal sequence.

  • How does the CD4017IC relate to a BCD counter?

    -The CD4017IC is a dedicated BCD counter with 10 outputs. It can count from zero to nine, and each count is represented by a binary number on its outputs.

  • What is a Johnson counter and how does it differ from a BCD counter?

    -A Johnson counter is a type of shift register that has a specific sequence of output states when it receives clock pulses. Unlike a BCD counter, a Johnson counter does not count in a decimal sequence but rather shifts its outputs in a predetermined sequence.

  • How is the CD4017 chip structured in terms of its internal components?

    -The CD4017 chip consists of a 5-bit Johnson counter and a 10-output decoder. The Johnson counter manages the sequence of outputs, and the decoder activates the corresponding output based on the counter's state.

  • What is the purpose of connecting LEDs and resistors to the CD4017IC in the example circuit?

    -The LEDs are used to visually represent the output states of the CD4017IC. The 470-ohm resistors are connected in series with the LEDs to limit the current and protect them from burning out.

  • Can you describe the role of the 555 timer IC in the example circuit?

    -The 555 timer IC is used to generate the clock pulses for the CD4017IC. It is configured in such a way that it provides a regular train of pulses that the CD4017IC uses to count.

  • What is the function of the 10k trim pot and the 10uF capacitor in the 555 timer IC circuit?

    -The 10k trim pot is used to adjust the frequency of the clock pulses generated by the 555 timer IC. The 10uF capacitor, in conjunction with the resistors, determines the timing interval for the pulses, affecting how fast the CD4017IC counts.

  • How does the example circuit demonstrate the functionality of the CD4017IC?

    -The example circuit connects the CD4017IC to a power supply, LEDs, resistors, and a 555 timer IC to create a visual counter. As the 555 timer IC generates clock pulses, the CD4017IC counts and activates the corresponding LED, showing the count from 0 to 9 in sequence.

Outlines
00:00
📺 Introduction to CD4017IC and its Working

This paragraph introduces the CD4017IC, a Johnson decade counter with 10 decoded outputs. It explains the purpose of a counter in counting events and details the pin configuration of the CD4017IC, including the ground, VCC, reset, clock, clock enable, carry out, and output pins. The logic symbol of the CD4017IC is described, illustrating its function as a binary counter with a clock input and multiple output lines. The paragraph also explains how the counter works with a seven-segment decoder to display the count on a display, emphasizing that the CD4017 is a BCD (Binary-Coded Decimal) counter capable of counting from 0 to 9. The video script provides a component list and circuit diagram, encouraging viewers to subscribe to the channel and follow on social media for updates.

05:44
🎥 Conclusion and Invitation for Future Videos

The final paragraph serves as a conclusion to the video, expressing hope that the viewers have enjoyed the content. It invites them to stay tuned for more videos like the one just watched, with a promise of future educational content. The speaker anticipates meeting the audience again in the next video, creating a sense of continuity and engagement with the viewers.

Mindmap
Keywords
💡CD4017IC
The CD4017IC is a specific integrated circuit (IC) mentioned in the video, known as a Johnson decade counter with 10 decoded outputs. It is the central component of the video's theme, which is to explain what the CD4017IC is and how it functions. The video script describes its pin configuration and logic symbol, indicating its role in counting events and decoding binary numbers into a displayable format.
💡Counter
A counter, in the context of the video, is an electronic device that keeps track of the number of times an event occurs. It is a fundamental concept for understanding the functionality of the CD4017IC, which is a type of counter designed to count through binary states. The script explains that the CD4017IC is a 4-bit counter but operates as a BCD (Binary-Coded Decimal) counter, counting from 0 to 9.
💡Pin Out
Pin out refers to the arrangement of pins on an integrated circuit that determine how it connects to other components in a circuit. The video script provides a detailed pin out for the CD4017IC, including the ground pin (pin 8), VCC (pin 16), reset pin (pin 15), clock pin (pin 14), and carry out pin (pin 12), among others. Understanding pin out is crucial for correctly interfacing the CD4017IC in a circuit.
💡Logic Symbol
The logic symbol is a graphical representation used to illustrate the function of a digital circuit component. The video script mentions the logic symbol for the CD4017IC, which includes a clock input, multiple output lines, and control lines. This symbol helps viewers visualize how the CD4017IC processes clock signals and produces output.
💡Binary Number
A binary number is a number expressed in the base-2 numeral system, which uses only two symbols: 0 and 1. The video script explains that the CD4017IC outputs a binary number that can be decoded into different number systems or sequences. This concept is essential for understanding how the counter increments its output with each clock pulse.
💡BCD Counter
A BCD counter, as described in the video, is a type of counter that counts in binary-coded decimal format, allowing it to count from 0 to 9. The CD4017IC is identified as a decade counter, which is a specific type of BCD counter that cycles through ten states. This is a key feature of the CD4017IC that enables it to be used in various counting and display applications.
💡Seven Segment Decoder
A seven segment decoder is a component that converts binary numbers into a format that can be displayed on a seven-segment display. The video script discusses connecting a seven segment decoder to the BCD counter, which allows the output of the CD4017IC to be visually represented. This is an important aspect of the video's practical application of the CD4017IC.
💡Johnson Counter
The Johnson counter is a type of shift register that outputs a sequence of states that cycle through all possible combinations of its stages. The video script introduces the concept of a Johnson counter and explains that the CD4017 chip contains a 5-bit Johnson counter. This feature allows the CD4017IC to have a specific output sequence when it receives clock pulses.
💡Example Circuit
An example circuit provided in the video script demonstrates how to practically implement the CD4017IC in a real-world application. The script walks through the process of connecting the CD4017IC to other components, such as LEDs, resistors, and a 555 timer IC, to create a functional circuit. This example serves as a practical guide for viewers to understand how the CD4017IC can be used.
💡555 Timer IC
The 555 timer IC is a versatile integrated circuit used in a variety of applications, including as a timer, oscillator, or pulse generator. In the video script, a 555 timer IC is connected to the CD4017IC to provide clock signals, which are essential for the counter to function. The script details the connections required to integrate the 555 timer with the CD4017IC, illustrating its role in the example circuit.
Highlights

Introduction to the CD4017IC and its functionality

Subscription and notification setup for the channel

Component list and circuit diagram provided in the description

Explanation of the CD4017 as a Johnson decade counter with 10 decoded outputs

Description of the counter's role in counting events

Pinout explanation of the CD4017IC

Logic symbol interpretation of the CD4017IC

Functioning of the counter with clock signal and binary number representation

Integration of a seven-segment decoder with the BCD counter

Demonstration of counting from zero to nine on a seven-segment display

Introduction to the Johnson counter and its sequence

CD4017 chip composition including a 5-bit Johnson counter and 10 output decoder

Example circuit construction using the CD4017IC

Connection details for LEDs, resistors, and the CD4017 outputs

555 timer IC integration for clock pulse generation

Final assembly and testing of the example circuit

Conclusion and invitation for more videos

Transcripts

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CD4017ICcounterdigitalelectronicsseven-segmenttutorialcircuit designpinouttimer