Question

[Paperl (10 pts.) Design a circuit that takes in four 4-bit unsigned numbers, A (A3..Ao), B (B3..Bo), C (C3-C), and D (D3..Do) and produces the 6-bit unsigned sum of those numbers. You should use three 4-bit adder blocks (74LS283's), and a minimal number of full adders or half adder build blocks. You should organize your adder circuits to perform as many additions in parallel (at the same time) as possible. Getting started: Write out the columns of addition and see where you can apply 4-bit adders. Use half and full adders for remaining addition operations.

Answer 1

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