HD74HC157 Datasheet, PDF (5/10 Pages) Hitachi Semiconductor – These devices each consist of four 2-input digital multiplexers with common select and strobe inputs

HD74HC157/HD74HC158
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
— — 125 —
— 12 25 —
— — 21 —
Max Unit
155 ns
31
26
t _PLH
2.0
— — 110 — 140 ns
t _PHL
4.5
— 12 22 — 28
6.0
— — 19 — 24
t _PHL
2.0
— — 125 — 155 ns
4.5
— 13 25 — 31
6.0
— — 21 — 26
t _PLH
2.0
— — 160 — 200 ns
4.5
— 17 32 — 40
6.0
— — 27 — 34
t _PHL
2.0
— — 160 — 200 ns
4.5
— 12 32 — 40
6.0
— — 27 — 34
t _PLH
2.0
— — 160 — 200 ns
4.5
— 12 32 — 40
6.0
— — 27 — 34
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
Data to HD74HC157 only
output
HD74HC158 only
Select to output
Strobe to output
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