A variety of ICs is there to drive a 7 segment display. They are IC 4026, 4033 and much more. Here in this tutorial, we are going to use IC CD4511 to drive 7 segment display. A BCD to 7 segment driver is used for the interconversion of binary numbers to decimal numbers. It can be done without using a chipset but the circuit is complex so ICs are used.
Hardware Components
The requirements are as follows
| S.no | Component | Value | Qty |
| 1. | Breadboard | – | 1 |
| 2. | Battery | 9v | 1 |
| 3. | IC 7-Segment | CD4511 | 1 |
| 4. | Resistors | 1k,550 ohm | 4,7 |
| 5. | Push Buttons | – | 4 |
Circuit Diagram
To convert the binary numbers, you need to use some BCD pins that activate the input as high or low. To convert 0100, you will need to use 0,1,0,0 so the device will show it as four on the 7 segments.
Working Explanation
For input, you need to give the input by using the low or high buttons. There are pins attached to it which are labeled as 1,2,3,4,6,7 out of which pin 3 is connected by 5V and helps to turn the LED on. PIN 4 is being used to turn the LED off and so on. These latch decoders are used to drive common cathode current, low voltage fluorescent display, etc. It consists of Direct current supply with an average of 25 mill amperes and the temperature ranges from -40 to 80 degrees whereas the voltage ranges from 3 to 18 volts when there is a high output that comes with a lamp test and blanking capability to test the display.
The input is given by the usage of pin 1, 2, 6 and 7. It is done by pulling high and low buttons down. A battery of 5 volts is connected to the system by which we can turn the LEDs on or off to check the 7-segment display working. The 7 segment display is formerly used to display the decimal numbers which are being used in calculators, digital clocks, etc. the 7 segment display consists of 7 different segments that can form 0 till 9 or it can also be denoted as A, B, C, D, E, F, etc. along with the segments, it also consists of LEDs which are 8 in number which functions as an illuminating device. The last one is used to illuminate the DOT. Each segment is denoted as a, b, c, d, e, and h. the H represents the DOT.
