Use parallel design for AO structures ND3 IAND3 AND-OR Aol-|NV∨ NAND-NAND 14≈60+20=80t4≈84+10=94t4≈30+30=60 A≈52+12=64A≈59+3=614≈(5+8)2=46 The ao structures always implemented by nand-nand structures
Use parallel design for AO structures 59 3 61 84 10 94 + = + = A t d (15 8) 2 46 30 30 60 + = + = A t d The AO structures always implemented by NAND-NAND structures. 52 12 64 60 20 80 + = + = A t d
CMOS transmission gate and three state gate Three state buffer Three state inverter d≈36 t,≈36 A≈6 A≈15 The r may increase
CMOS transmission gate and three state gate Three state buffer Three state inverter 6 36 A t d The R may increase ! 15 36 A t d