Question

how many outputs in a 4-bit fulk adder? please help!​

Answer 1

Answer:

As shown in the figure, the first full adder has control line directly as its input(input carry Cin), The input A0 (The least significant bit of A) is directly input in the full adder. The third input is the exor of B0 and K. The two outputs produced are Sum/Difference (S0) and Carry (C0).

Answer 2

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As shown in the figure, the first full adder has control line directly as its input(input carry Cin), The input A0 (The least significant bit of A) is directly input in the full adder. The third input is the exor of B0 and K. The two outputs produced are Sum/Difference (S0) and Carry (C0).

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