54LS128/74LS128 LSTTL 2 75Ω : tpd=12ns Pd=5.5mW/ : (1/4)
:
:
A H × H L B H H × L Y L L L H
:
74Ⅱ Vcc VIH VIL IOH IOL TA -40 4.75 2 0.8 -26 24 85 -55 5 5.25 4.5 2 0.7 -26 12 125 54 5 5.5 V V V mA mA ℃
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54LS128/74LS128 LSTTL 2 75Ω : (,)
7...