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參數資料
| 型號： | 74125 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Quad 3-STATE Buffer |
| 中文描述： | 四三態(tài)緩沖器 |
| 文件頁數： | 2/5頁 |
| 文件大?。?/td> | 62K |
| 代理商： | 74125 |
www.fairchildsemi.com
2
D
Absolute Maximum Ratings
(Note 1)
Note 1:
The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
Recommended Operating Conditions
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Note 2:
All typicals are at V
CC
=
5V, T
A
=
25
°
C.
Note 3:
Not more than one output should be shorted at a time, and the duration should not exceed one second.
Note 4:
I
CC
is measured with the data control (C) inputs at 4.5V and the data inputs grounded.
Switching Characteristics
at V
CC
=
5V and T
A
=
25
°
C
Note 5:
C
L
=
5pF.
Supply Voltage
Input Voltage
Operating Free Air Temperature Range
Storage Temperature Range
7V
7V
0
°
C to
+
70
°
C
65
°
C to
+
150
°
C
Symbol
Parameter
Min
4.75
2
Nom
5
Max
5.25
Units
V
V
V
mA
mA
°
C
V
CC
V
IH
V
IL
I
OH
I
OL
T
A
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Current
LOW Level Output Current
Free Air Operating Temperature
0.8
2.6
24
70
0
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 2)
V
I
V
OH
Input Clamp Voltage
HIGH Level
Output Voltage
V
CC
=
Min, I
I
=
18 mA
V
CC
=
Min, I
OH
=
Max
V
IL
=
Max, V
IH
=
Min
V
CC
=
Min, I
OL
=
Max
V
IL
=
Max
I
OL
=
12 mA, V
CC
=
Min
V
CC
=
Max, V
I
=
7V
V
CC
=
Max, V
I
=
2.7V
V
CC
=
Max, V
I
=
0.4V
V
CC
=
Max, V
O
=
2.4V
V
IH
=
Min, V
IL
=
Max
V
CC
=
Max, V
O
=
0.4V
V
IH
=
Min, V
IL
=
Max
V
CC
=
Max (Note 3)
V
CC
=
Max (Note 4)
1.5
V
2.4
3.4
V
V
OL
LOW Level
Output Voltage
0.35
0.5
V
0.25
0.4
I
I
I
IH
I
IL
I
OZH
Input Current @ Max Input Voltage
HIGH Level Input Current
0.1
20
0.4
mA
μ
A
mA
LOW Level Input Current
Off-State Output Current with
HIGH Level Output Voltage Applied
20
μ
A
I
OZL
Off-State Output Current with
LOW Level Output Voltage Applied
Short Circuit Output Current
20
μ
A
I
OS
I
CC
20
100
20
mA
Supply Current
11
mA
R
L
=
667
Symbol
Parameter
C
L
=
50 pF
Min
C
L
=
150 pF
Min
Units
Max
15
Max
21
t
PLH
t
PHL
t
PZH
t
PZL
t
PHZ
t
PLZ
Propagation Delay Time LOW-to-HIGH Level Output
ns
Propagation Delay Time HIGH-to-LOW Level Output
Output Enable Time to HIGH Level Output
Output Enable Time to LOW Level Output
18
25
25
22
35
40
ns
ns
ns
Output Disable Time from HIGH Level Output (Note 5)
Output Disable Time from LOW Level Output (Note 5)
20
20
ns
ns
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