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Unformatted text preview: t pHL t pLH t pLH t1 pHL t1 pLH t2 pHL t2 pLH Lam Book Problems 4.20 # of CS inputs that can be driven when low = I OL(74LS02) / -I IL(Mem) = 8mA/40 A = 200 # of CS inputs that can be driven when high = -I OH(74LS02) / I IH(Mem) = 0.4mA/40 A = 10 FAN OUT = min(FO L , FA H ) = 10 4.23 4.24...
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- Spring '05