FOUR BIT CARRY LOOK AHEAD ADDER. SUBMITTED BY: MILAN PATNAIK SHANTHI TENNETI DURGA L NALLARI ADVISOR: PROF. DAVID PARENT DATE : 12-06-2004. Agenda. Abstract Introduction why Theory of operation Project (Experimental) Details Results Cost Analysis Conclusions. Abstract.
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DURGA L NALLARI
ADVISOR: PROF. DAVID PARENT
DATE : 12-06-2004
- explicit arithmetic operations
- computing physical addresses in most
- used in digital systems where full fledged
CPUs are superfluous.
Gi = Ai + Bi and Pi= Ai XOR Bi
Si=Pi xor Ci & Ci+1=Gi +PiCi
C2 = G1 + P1C1
C3 = G2+P2G1+P2P1C1
1BIT FULL ADDER
Cg of Driver MUX (master ff)= 19.93fF which matches the Cg =20fF assumption.
T hold (rise)=0.5n
T hold (fall)=0.48n
T setup (rise)=0.73n
T setup (fall)=0.64n
area and power consumption with a more