HW7 Build a Carry-Lookahead Adder
Tasks:
Task 1. Derive the
logic
function of the carry-lookahead adder. (20 points)
Task 2. Build
a 3-bit ripple-carry adder in LTSpice. (20 points)
Task 3. Run simulations for both
adders, use the two inputs: A2A1A0=111,
B2B1B0=00x, keep toggling B0 during the simulation. Plot C2C1C0 and S2S1S0 in the same
plot and compare those two results. Explain why the CLA is faster. (60 points)
A closer look of the schematic: