U a1 , U a1 , U a2 , U a2 , ¬ U aS = low
High impedance (three-state)
alta impendenza (tristate)
Low impedance
bassa impendenza
Min. edge separation
min. distanza tra i fronti
TRI
Max. input frequency, tolerance ±5%
max frequenza ingresso, Tolleranza ±5 %
FC2
FC1
FC0
TTL x 5
TTL x 10
17