The design will calculate two 4-bit binary numbers and compute the calculations using
simple logic gates.

Circuit block Diagram:

7-bit BCD
  • Components:
    • 7486 XOR x2
    • 7432 OR x1
    • 7408 AND x2
    • DIP Switch x8
    • Jumper Wires
    • Breadboard x2
    • On/Off Switch x1
    • Battery 9V x1
    • Regulator 5V x1

Constraints In 4-Bit Subtraction: