HD74HC155 Datasheet, PDF (5/9 Pages) Hitachi Semiconductor – Dual 2-to-4-line Decoders/Demultiplexers

HD74HC155
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
— — 160 —
— 13 32 —
— — 27 —
Max Unit
200 ns
40
34
2.0
— — 160 — 200
4.5
— 15 32 — 40
6.0
— — 27 — 34
2.0
— — 145 — 180
4.5
— 14 29 — 36
6.0
— — 25 — 31
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
A, B, 2C, 1G or 2G to Y
A or B to Y
1C to Y
5