This project implements an 8-bit binary adder using two 74LS283 4-bit full adder ICs. The circuit takes two 8-bit binary inputs provided through DIP switches and produces their sum. The result is displayed using LEDs, where each LED corresponds to a bit in the binary sum (from 2⁰ to 2⁷).
This project demonstrates fundamental concepts in digital electronics, including binary addition, cascading of 4-bit adders to achieve 8-bit operation, and visual output representation using LEDs.
- 8-bit Binary Addition using TTL logic ICs.
- Cascaded 74LS283 Chips to handle full 8-bit arithmetic.
- Inputs: DIP switches to provide two 8-bit numbers.
- Outputs: LEDs that display the resulting binary sum.
- 74LS283 – Two 4-bit full adders (cascaded for 8-bit addition).
- DIP Switches – User input for binary numbers A and B.
- Resistors – Current limiting for LEDs.
- LEDs – Display of binary output sum.
- Perfboard – For mounting and wiring the circuit.
- The two 74LS283 ICs are connected in cascade.
- The carry out from the lower 4-bit adder is connected to the carry in of the higher 4-bit adder.
- LEDs represent the resulting sum bits.
- Each DIP switch represents a bit of the binary input.
- The adder ICs perform binary addition in parallel.
- LEDs glow according to the output bit value (
1= ON,0= OFF).
