Full Adder
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Circuit Description
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The circuit performs the mathematical function of adding three binary digits. The three digits are the Augend (AG), Addend (AD) and Carry Input (CI). The addend and the carry input are added to augend generating Sum (SUMf) and Carry Output (COf) as output signals.
The SUMf output bit will be set if the number of input bits set to 1 is odd. Thus the SUMf output can be generated by a three-input Exclusive OR (XOR) gate.
The carry output (COf) bit will be set if two or all of the input bits are 1s. Then, a three-input majority voting logic circuit can be used for carry output.
Variables / Signal Names:
CI = Carry Input
AG = Augend
AD = Addend
SUMf = (Full adder) Sum
COf = (Full subtractor) Carry Output
For Full Subtractor:
https://www.multisim.com/content/TR3Ck3HsJXpwcZ3iuYQjzR/full-subtractor/
For Half Adder:
https://www.multisim.com/content/YZgqMmn73ceEynBkiRXUeS/half-adder/
For Full Adder Using Two Half Adders:
https://www.multisim.com/content/cu38wufkNopY7q3DbNxMhj/full-adder-using-two-half-adders/
For Configurable-Mode Full Subtractor/Adder:
https://www.multisim.com/content/gwds95xFpmG5tfsUC5GzeH/configurable-mode-full-subtractoradder/
For Simultaneous Dual Function Half Adder-Subtractor:
https://www.multisim.com/content/MoUhGPsqRXjNsmYbzrMahn/simultaneous-dual-function-half-adder-subtractor/
For Configurable-Mode Full Subtractor/Adder Using Half Subtractor/Adder And Half Adder:
https://www.multisim.com/content/7f3C4LtEzu8adz9gefm5yf/configurable-mode-full-subtractoradder-using-half-subtractoradder-and-half-adder/
Private Copy
Creator
GGoodwin
1116 Circuits
Date Created
6 years, 3 months ago
Last Modified
2 years, 5 months ago
Tags
Open Circuit
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Harishkanmani says:
can you help me in designing the full adder using IC