Binary Adder with seven segment

1. DLD Project
Presentation
Muhammad Asad FA22-BCE-057
Muhammad Uzair FA22-BCE-072
Syed Muhammad Hur Ali FA22-BCE-087

2. Binary Coded
Decimal Adder
(BCD Adder)

3. Introduction
BCD Adder
1. BCD Adder is a digital circuit used for adding Binary Coded Decimal (BCD)
numbers.
2. BCD represents decimal numbers using a four-bit binary code for each
decimal digit.
3. BCD numbers range from 0 to 9, and each digit is represented by a unique
four-bit code.
4. BCD Adder consists of multiple full-adder circuits.
5. Each full-adder adds two binary digits and a carry-in to produce a sum digit
and a carry-out.
6. The carry-out from each full-adder is connected to the carry-in of the next
higher-order digit.
7. BCD Adder ensures the BCD output remains in the valid range (0 to 9) by
propagating carry-outs.

4. Examples
The concept of BCD Adder is
used in the following devices:

5. Implementation
BCD Adder can be implemented by
using the following gates:
• AND Gate
• OR Gate

6. Logic Diagram
• Microcontroller:
The brain of the stopwatch, responsible for controlling
and coordinating various functions.
• Display:
The component that shows the time, lap times, and
other relevant information.
• Control Buttons:
Input devices used to start, stop, reset and perform
other operations on the stopwatch.
• Timing Circuit:
This circuit generates the necessary clock pulses and
handles the timing functionality of the stopwatch.
• Power Supply:
The circuit that provides the necessary power to all the
components.

7. Conclusion:
• The BCD adder is a digital circuit used to add Binary Coded Decimal
(BCD) numbers.
• It follows the rules of binary addition while maintaining the BCD format.
By propagating carries and using logic gates, it ensures accurate results.
• The BCD adder is a crucial component in systems requiring arithmetic
operations on BCD numbers.

8. THANKS