CircuitVerse - Four bit adder

Four bit adder

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Author: A Mulholland

Project access type: Public

Description:

Has all stages up to a byte (8-bit) adder with 7-seg display. Each step up uses the previous circuit as a subcircuit.

Half adder

Full adder

input: 2 bits and a carry

output: sum and carry

4 bit adder

input: 2 x 4-bit nybbles and a carry

output: sum (4-bit nybble) and carry

4 bit adder with display

input: 2 x 4-bit nybbles and a carry

output: sum (4-bit nybble) and carry

display: 3 x 7-seg elements showing the two inputs and the sum, all in hex

8 bit adder with display - uses 2 x 4 bit adders

input: 2 x 8-bit bytes and a carry

output: sum (8-bit byte) and carry

display: 6 x 7-seg elements showing the two inputs and the sum in 2 digit hex, and an overflow indicator (LED)

Created: Feb 25, 2022

Updated: Aug 27, 2023

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