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參數(shù)資料
| 型號(hào)： | 7438 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Quad 2-Input NAND Buffers with Open-Collector Outputs(四2輸入與非門（集電極開路輸出）) |
| 中文描述： | 四2輸入與非緩沖器，具有集電極開路輸出（四2輸入與非門（集電極開路輸出）） |
| 文件頁數(shù)： | 2/5頁 |
| 文件大?。?/td> | 61K |
| 代理商： | 7438 |
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)
Switching Characteristics
at V
CC
=
5V and T
A
=
25
°
C
Symbol
Note 2:
All typicals are at V
CC
=
5V, T
A
=
25
°
C.
Supply Voltage
Input Voltage
Output Voltage
Operating Free Air Temperature Range
Storage Temperature Range
7V
5.5V
7V
0
°
C to
+
70
°
C
65
°
C to
+
150
°
C
Symbol
V
CC
V
IH
V
IL
V
OH
I
OL
T
A
Parameter
Min
4.75
2
Nom
5
Max
5.25
Units
V
V
V
V
mA
°
C
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Voltage
LOW Level Output Current
Free Air Operating Temperature
0.8
5.5
48
70
0
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 2)
V
I
I
CEX
Input Clamp Voltage
V
CC
=
Min, I
I
=
12 mA
V
CC
=
Min, V
O
=
5.5V
V
IL
=
Max
V
CC
=
Min, I
OL
=
Max
V
IH
=
Min
V
CC
=
Max, V
I
=
5.5V
V
CC
=
Max, V
I
=
2.4V
V
CC
=
Max, V
I
=
0.4V
V
CC
=
Max
V
CC
=
Max
1.5
V
HIGH Level
Output Current
LOW Level
250
μ
A
V
OL
0.4
V
Output Voltage
Input Current @ Max Input Voltage
I
I
I
IH
I
IL
I
CCH
I
CCL
1
mA
μ
A
mA
mA
HIGH Level Input Current
LOW Level Input Current
Supply Current with Outputs HIGH
40
1.6
8.5
5
Supply Current with Outputs LOW
34
54
mA
Parameter
Conditions
Min
Max
Units
t
PLH
Propagation Delay Time
LOW-to-HIGH Level Output
Propagation Delay Time
C
L
=
45 pF
R
L
=
133
22
ns
t
PHL
18
ns
HIGH-to-LOW Level Output
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