Question: Q 4 . Consider the circuit in Fig. 3 which adds together seven 1 - bit binary numbers A 6 :A 0 into one 3

Q4. Consider the circuit in Fig. 3 which adds together seven 1-bit binary numbers A6:A0 into one 3-bit output \(\$ 2: 50\)(whose value ranges from 0 to 7). This implementation uses only half adders (HA), full adders (FA), and XOR gates. Assuming that the sum and carry delays of the half adders/full adders/XOR are equal and its value is 20 ps , calculate delay on the critical path for this circuit? (Mark critical path on the schematic.) Sol:
Q 4 . Consider the circuit in Fig. 3 which adds

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