Full adder using flip flops

[anon10128]

Hi sir,
How to design a full adder using flip flops?

Thank you

[anup]

Anon10128,

A flip-flop is a sequential circuit and an adder is a combinational circuit. Did the question have anything more than this?

Thanks,
Anup

[anon10128]

No sir I am not sure. Actually it is a question asked to our seniors. They have sent a experience ppt, in that ppt this question is given.

Thank you.

[basant]

Anon10128,

You can probably design a pipelined adder something as described in the link below. However, this will incur additional delays.

http://www.engr.uky.edu/~elias/projects/12.pdf

-- Basant

[anon10128]

Good evening,

That means there is no use of adding that D-flip flop in the circuit. Or it has some other purpose?

Thank you.

[basant]

Anon10128,

D flip-flop in the circuit is being used to temporarily store the result and forward to the next stage after a clock cycle delay. You can also think it as a pipeline register.

-- Basant