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HD74HC238 Datasheet, PDF (5/9 Pages) Hitachi Semiconductor – 3-to-8-line Decoder/Demultiplexer
HD74HC238
AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns)
Ta = 25°C
Ta = –40 to
+85°C
Item
Symbol
Propagation delay tPLH
time
t PHL
VCC (V)
2.0
4.5
6.0
Min Typ Max Min
— — 150 —
— 15 30 —
— — 26 —
Max Unit
190 ns
38
33
2.0
— — 150 — 190 ns
4.5
— 13 30 — 38
6.0
— — 26 — 33
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
Select to Y
Enable to Y
5