HD74HC147 Datasheet, PDF (4/8 Pages) Hitachi Semiconductor – 10-to-4-line Priority Encoder

HD74HC147
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
V_CC (V)
2.0
4.5
Min Typ Max Min
— — 220 —
— 15 44 —
Max Unit
275 ns
55
6.0
— — 37 — 47
t _PHL
2.0
— — 220 — 275 ns
4.5
— 14 44 — 55
6.0
— — 37 — 47
Output rise/fall
t _TLH
time
t _THL
2.0
— — 75 — 95 ns
4.5
— 5 15 — 19
6.0
— — 13 — 16
Input capacitance Cin
—
— 5 10 — 10 pF
Test Conditions
4