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參數(shù)資料
| 型號： | IN74LV138 |
| 廠商： | INTEGRAL JOINT STOCK COMPANY |
| 英文描述： | Octal Bus Transceivers And Registers With 3-State Outputs 24-TSSOP -40 to 85 |
| 中文描述： | 3至8線路解碼器/解復用器;反相 |
| 文件頁數(shù)： | 4/8頁 |
| 文件大?。?/td> | 84K |
| 代理商： | IN74LV138 |
IN74LV138
4
INTEGRAL
AC ELECTRICAL CHARACTERISTICS
(C
L
=50 pF, t
LH
= t
HL
= 2.5 nc, V
IL
=0B, V
IH
=V
CC
)
Symbol
Parameter
V
CC
Guaranteed Limit
Unit
V
25
°
C
ò -40
°
C to
85
°
C
min
ò -40
°
C to
125
°
C
min
min
max
max
max
t
PLH
, t
PHL
Propagation delay,
input A to output Y
(Figures 1)
1.2
2.0
2.7
3.0
4.5
1.2
2.0
2.7
3.0
4.5
-
150
33
23
19
14
170
35
26
21
17
170
35
26
21
17
7.0
-
150
36
26
21
16
170
39
29
23
19
170
39
29
23
19
-
180
44
33
26
20
200
49
36
29
24
200
49
36
29
24
ns
t
PLH
, t
PHL
Propagation delay ,
CS1 to
output Y
(Figures 2)
-
-
-
ns
t
PLH
, t
PHL
Output transition
time, CS2 or CS3 to
output Y (Figures 3)
-
-
-
ns
C
IN
Input capacitance
5.0
ò=+25
pF
Power dissipation capacitance (per enabled
output)
Typical @25
°
C,V
CC
=5.5 V
C
PD
Used to determine the no-load dynamic power
consumption:
P
D
=C
PD
V
CC
2
f+I
CC
V
CC
90
pF
Figure 1. Switching Waveforms Figure 2. Switching Waveforms
INPUT
A
GND
OUTPUT
Y
t
PHL
t
PLH
Vcc
50%
50%
INPUT
CS1
GND
OUTPUT
Y
t
PHL
t
PLH
Vcc
90%
50%
90%
50%
10%
10%
t
r
t
f
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