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參數(shù)資料
| 型號： | 74LS126A |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Quad TRI-STATE Buffer |
| 中文描述： | 四三態(tài)緩沖器 |
| 文件頁數(shù)： | 2/4頁 |
| 文件大?。?/td> | 95K |
| 代理商： | 74LS126A |
Absolute Maximum Ratings
(Note)
Supply Voltage
7V
Input Voltage
7V
Operating Free Air Temperature Range
0
§
C to
a
70
§
C
b
65
§
C to
a
150
§
C
Storage Temperature Range
Note: The ‘‘Absolute Maximum Ratings’’ are those values
beyond which the safety of the device cannot be guaran-
teed. The device should not be operated at these limits. The
parametric values defined in the ‘‘Electrical Characteristics’’
table are not guaranteed at the absolute maximum ratings.
The ‘‘Recommended Operating Conditions’’ table will define
the conditions for actual device operation.
Recommended Operating Conditions
Symbol
Parameter
Min
Nom
Max
Units
V
CC
Supply Voltage
4.75
5
5.25
V
V
IH
High Level Input Voltage
V
V
IL
Low Level Input Voltage
0.8
V
I
OH
High Level Output Current
b
2.6
mA
I
OL
Low Level Output Current
24
mA
T
A
Free Air Operating Temperature
0
70
§
C
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 1)
V
I
Input Clamp Voltage
V
CC
e
Min, I
I
e b
18 mA
b
1.5
V
V
OH
High Level Output
Voltage
V
CC
e
Min, I
OH
e
Max
V
IH
e
Min
2.4
V
V
OL
Low Level Output
Voltage
V
CC
e
Min, I
OL
e
Max
V
IL
e
Max, V
IH
e
Min
0.35
0.5
V
I
OL
e
12 mA, V
CC
e
Min
0.25
0.4
I
I
Input Current
@
Max
Input Voltage
V
CC
e
Max, V
I
e
7V
0.1
mA
I
IH
High Level Input Current
V
CC
e
Max, V
I
e
2.7V
20
m
A
I
IL
Low Level Input
Current
V
CC
e
Max, V
I
e
0.4V
b
0.4
mA
I
OZH
Off-State Output Current
with High Level Output
Voltage Applied
V
CC
e
Max, V
O
e
2.4V
V
IH
e
Min, V
IL
e
Max
20
m
A
I
OZL
Off-State Output Current
with Low Level Output
Voltage Applied
V
CC
e
Max, V
O
e
0.4V
V
IH
e
Min, V
IL
e
Max
b
20
m
A
I
OS
Short Circuit
Output Current
V
CC
e
Max
(Note 2)
b
20
b
100
mA
I
CC
Supply Current
V
CC
e
Max
12
22
mA
Note 1:
All typicals are at V
CC
e
5V, T
A
e
25
§
C.
Note 2:
Not more than one output should be shorted at a time, and the duration should not exceed one second.
2
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