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2

Function Table

H

= HIGH Level, L = LOW Level

Input conditions at A1, B1, A2, B2, and C0 are used to determine outputs

∑1 and ∑2 and the value of the internal carry C2.

The values at C2, A3, B3, A4, and B4 are then used to determine outputs

∑3, ∑4, and C4.

Logic Diagram