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7447 数据表(PDF) 2 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部件名 7447
功能描述  BCD to 7-Segment Decoders/Drivers
Download  6 Pages
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制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 NSC - National Semiconductor (TI)

7447 数据表(HTML) 2 Page - National Semiconductor (TI)

  7447 Datasheet HTML 1Page - National Semiconductor (TI) 7447 Datasheet HTML 2Page - National Semiconductor (TI) 7447 Datasheet HTML 3Page - National Semiconductor (TI) 7447 Datasheet HTML 4Page - National Semiconductor (TI) 7447 Datasheet HTML 5Page - National Semiconductor (TI) 7447 Datasheet HTML 6Page - National Semiconductor (TI)  
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Absolute Maximum Ratings (Note)
If MilitaryAerospace specified devices are required
please contact the National Semiconductor Sales
OfficeDistributors for availability and specifications
Supply Voltage
7V
Input Voltage
55V
Operating Free Air Temperature Range
DM54
b
55 Cto a125 C
DM74
0 Cto a70 C
Storage Temperature Range
b
65 Cto a150 C
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
DM7446A
Units
Min
Nom
Max
VCC
Supply Voltage
475
5
525
V
VIH
High Level Input Voltage
2
V
VIL
Low Level Input Voltage
08
V
VOH
High Level Output Voltage (a thru g)
30
V
IOH
High Level Output Current (BIRBO)
b
02
m
A
IOL
Low Level Output Current (a thru g)
40
mA
IOL
Low Level Output Current (BIRBO)
8
mA
TA
Free Air Operating Temperature
0
70
C
’46A Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 1)
VI
Input Clamp Voltage
VCC e Min II eb12 mA
b
15
V
VOH
High Level Output
VCC e Min
24
37
V
Voltage (BIRBO)
IOH e Max
ICEX
High Level Output
VCC e Max VO e 30V
250
m
A
Current (a thru g)
VIL e Max VIH e Min
VOL
Low Level Output
VCC e Min IOL e Max
03
04
V
Voltage
VIH e Min VIL e Max
II
Input Current
Max
VCC e Max VI e 55V
1mA
Input Voltage
(Except BIRBO)
IIH
High Level Input
VCC e Max VI e 24V
40
m
A
Current
(Except BIRBO)
IIL
Low Level Input
VCC e Max
BIRBO
b
4
mA
Current
VI e 04V
Others
b
16
IOS
Short Circuit
VCC e Max (BIRBO)
b
4mA
Output Current
ICC
Supply Current
VCC e Max
60
103
mA
(Note 2)
Note 1
All typicals are at VCC e 5V TA e 25 C
Note 2
ICC is measured with all outputs open and all inputs at 45V
2


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