Now make the connection as shown in circuit diagram. The pattern of LEDs is same as in a conventional 7 segment display. Here pins A, B, C, D are used to provide the BCD input where A is the least significant bit and D is the most significant bit. To understand the IC first have a look at its pin configuration. This will energize the proper output lines according to switch pressed to form a corresponding numeric value on 7 segment display. With the help of four switches we can provide a four bit BCD (binary coded decimal) value. In this BCD to 7 segment display circuit, we provide binary input with the help of tactile switches. Latch enable (LE) is used to store BCD codes. Blanking input is used to turn off or vary the brightness of the display. For testing, momentarily make the pin low, in short used to test the display. It also provides you the facility to check that all segments of 7 segment display are working properly or not (lamp test). This IC provides the facility of 4-bit storage latch, an 8421 BCD-to-seven segment decoder. One thing to be kept in mind with this circuit is IC 4511 is used only for common cathode display. 1: Prototype Of BCD to 7 Segment Display Circuit On BreadboardĬD4511 is a CMOS BCD to seven segment latch/decoder and is used in various application like in clock, watches, computer, calculators etc. Facility of blanking input and Lamp test provision.įig.It will display the numeric number from 0 to 9.This circuit uses single IC 4511 to display binary input into 7 segment display.It will help you to learn how to display binary input into 7 segment display.The BCD to 7 segment display circuit used here has following advantages.

The circuit described below will solve your problem as it will display binary code on 7 segment displays, a very common and useful component of digital devices. Many times we use LEDs in order to see binary outputs which are quite difficult to understand.