HD74HC442 Datasheet, PDF (8/12 Pages) Hitachi Semiconductor – Quad. Tridirectional Bus Transceiver(with noninverted/inverted 3-state outputs)

HD74HC442/HD74HC443HD74HC444
AC Characteristics (C_L = 50 pF, Input t_r = t_f = 6 ns)
Ta = 25°C
Ta = –40 to
+85°C
Item
Symbol
Propagation delay t_PLH
time
t _PHL
V_CC (V)
2.0
4.5
6.0
Min Typ Max Min
— — 200 —
— — 40 —
— — 34 —
Max Unit
250 ns
50
43
Output enable
t _ZH
time
t _ZL
2.0
— — 150 — 190 ns
4.5
— — 30 — 38
6.0
— — 26 — 33
Output disable
t _HZ
time
t _LZ
2.0
— — 150 — 190 ns
4.5
— — 30 — 38
6.0
— — 26 — 33
Output rise/fall
t _TLH
time
t _THL
2.0
— — 60 — 75 ns
4.5
— — 12 — 15
6.0
— — 10 — 13
Input capacitance Cin
—
— 5 10 — 10 pF
Test Conditions
8