參數(shù)資料
型號: HD74HC139
廠商: Hitachi,Ltd.
英文描述: Dual 2-to-4-line Decoders/Demultiplexers
中文描述: 雙路2至4行解碼器/解復用器
文件頁數(shù): 4/9頁
文件大?。?/td> 51K
代理商: HD74HC139
HD74HC139
4
AC Characteristics
(C
L
= 50 pF, Input t
r
= t
f
= 6 ns)
Ta = 25
°
C
Ta = –40 to
+85
°
C
Item
Symbol
V
CC
(V)
2.0
Min Typ Max Min
Max
Unit
Test Conditions
Propagation delay t
PHL
time
150 —
190
ns
Select to any output (4 levels)
4.5
15
30
38
6.0
26
33
t
PLH
2.0
150 —
190
ns
4.5
13
30
38
6.0
26
33
t
PLH
2.0
150 —
190
ns
Select to any output (5 levels)
4.5
18
30
38
6.0
26
33
t
PHL
2.0
150 —
190
ns
4.5
18
30
38
6.0
26
33
t
PHL
2.0
160 —
200
ns
Enable to any output
4.5
19
32
40
6.0
27
34
t
PLH
2.0
160 —
200
ns
4.5
16
32
40
6.0
27
34
Output rise/fall
t
TLH
t
THL
2.0
75
95
ns
time
4.5
5
15
19
6.0
13
16
Input capacitance
Cin
5
10
10
pF
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