# Bcd To 7 Segment Display Using Ic 7447 Circuit Diagram

By | September 29, 2023

## BCD to 7 Segment Display Using IC 7447 Circuit Diagram

The 7447 is a popular integrated circuit (IC) that can be used to convert BCD (Binary Coded Decimal) to a 7-segment display. This is a common task in many electronic projects, as 7-segment displays are a convenient way to show numbers and other information. The 7447 is a fairly simple IC to use, and with a few components, you can easily create your own BCD to 7-segment display. In this tutorial, we will walk you through the steps of building a BCD to 7-segment display using the 7447. We will provide the circuit diagram, as well as instructions on how to assemble the circuit. We will also provide some tips on how to troubleshoot the circuit if you run into any problems. ### Circuit Diagram The circuit diagram for the BCD to 7-segment display is shown below. The 7447 is a 16-pin IC. The pins are labeled A, B, C, D, E, F, G, and DP. The DP pin is the decimal point, and it is used to indicate that the number displayed is a decimal number. The other pins are used to input the BCD code for the number that you want to display. The BCD code for a number is a four-bit binary number that represents the number in decimal. For example, the BCD code for the number 10 is 0001 0000. The BCD code for the number 9 is 0000 1001. The 7-segment display is a common cathode display. This means that each segment of the display is connected to a common cathode. The anodes of the segments are connected to the outputs of the 7447. When a high voltage is applied to the output of the 7447, the corresponding segment of the display will be lit up. ### Assembly Instructions To assemble the circuit, you will need the following components: * 1x 7447 IC * 1x 7-segment display * 8x resistors (100 ohms) * 1x power supply (9V) Once you have gathered your components, you can begin assembling the circuit. The following steps will walk you through the process: 1. Connect the power supply to the circuit. The positive terminal of the power supply should be connected to the VCC pin of the 7447, and the negative terminal of the power supply should be connected to the GND pin of the 7447. 2. Connect the 7-segment display to the 7447. The anodes of the 7-segment display should be connected to the outputs of the 7447 (pins A through G). The common cathode of the 7-segment display should be connected to the GND pin of the 7447. 3. Connect the resistors to the 7447. The resistors should be connected between the inputs of the 7447 (pins 1 through 4) and the ground. Once the circuit is assembled, you can test it by applying a BCD code to the inputs of the 7447. The 7-segment display will display the corresponding number. ### Troubleshooting If the 7-segment display is not displaying the correct number, there are a few things you can check: * Make sure that the circuit is assembled correctly. * Make sure that the power supply is connected correctly. * Make sure that the resistors are connected correctly. * Make sure that the BCD code is correct. If you have checked all of these things and the 7-segment display is still not displaying the correct number, you may need to replace the 7447 IC. ### Conclusion The 7447 is a versatile IC that can be used to convert BCD to a 7-segment display. With a few components, you can easily create your own BCD to 7-segment display. This is a great project for beginners, as it is relatively simple to build and understand. ## Additional Resources * [7447 Datasheet](https://www.ti.com/lit/ds/symlink/sn7

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