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HD74HC139 Datasheet, PDF (4/9 Pages) Hitachi Semiconductor – Dual 2-to-4-line Decoders/Demultiplexers | |||
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HD74HC139
AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns)
Ta = 25°C
Ta = â40 to
+85°C
Item
Symbol
Propagation delay tPHL
time
VCC (V)
2.0
4.5
Min Typ Max Min
â â 150 â
â 15 30 â
Max Unit
190 ns
38
6.0
â â 26 â 33
t PLH
2.0
â â 150 â 190 ns
4.5
â 13 30 â 38
6.0
â â 26 â 33
t PLH
2.0
â â 150 â 190 ns
4.5
â 18 30 â 38
6.0
â â 26 â 33
t PHL
2.0
â â 150 â 190 ns
4.5
â 18 30 â 38
6.0
â â 26 â 33
t PHL
2.0
â â 160 â 200 ns
4.5
â 19 32 â 40
6.0
â â 27 â 34
t PLH
2.0
â â 160 â 200 ns
4.5
â 16 32 â 40
6.0
â â 27 â 34
Output rise/fall
t TLH
time
t THL
2.0
â â 75 â 95 ns
4.5
â 5 15 â 19
6.0
â â 13 â 16
Input capacitance Cin
â
â 5 10 â 10 pF
Test Conditions
Select to any output (4 levels)
Select to any output (5 levels)
Enable to any output
4
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