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DM74LS47M Arkusz danych(PDF) 2 Page - Fairchild Semiconductor

Numer części DM74LS47M
Szczegółowy opis  BCD to 7-Segment Decoder/Driver with Open-Collector Outputs
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Producent  FAIRCHILD [Fairchild Semiconductor]
Strona internetowa  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

DM74LS47M Arkusz danych(HTML) 2 Page - Fairchild Semiconductor

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Absolute Maximum Ratings (Note 2)
Supply Voltage
7V
Input Voltage
7V
Operating Free Air Temperature Range
DM54LS
−55˚C to +125˚C
DM74LS
0˚C to +70˚C
Storage Temperature Range
−65˚C to +150˚C
Recommended Operating Conditions
Symbol
Parameter
DM54LS47
DM74LS47
Units
Min
Nom
Max
Min
Nom
Max
V
CC
Supply Voltage
4.5
5
5.5
4.75
5
5.25
V
V
IH
High Level Input Voltage
2
2
V
V
IL
Low Level Input Voltage
0.7
0.8
V
I
OH
High Level Output Currenta−g
−50
−250
µA
@ 15V = V
OH (Note 3)
I
OH
High Level Output Current BI /RBO
−50
µA
I
OL
Low Level Output Current
12
24
mA
T
A
Free Air Operating Temperature
−55
125
0
70
˚C
Note 2:
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” table are not guaranteed at the absolute maximum ratings. The “Recommended Operating
Conditions” table will define the conditions for actual device operation.
Note 3: OFF state at a–g.
Electrical Characteristics
Over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 4)
V
I
Input Clamp Voltage
V
CC = Min, II = −18 mA
−1.5
V
V
OH
High Level
V
CC = Min, IOH = Max,
DM54
2.4
V
Output Voltage
V
IL = Max, BI /RBO
DM74
2.7
3.4
I
OFF
Output High Current
V
CC = 5.5V, VO = 15Va−g
250
µA
Segment Outputs
V
OL
Low Level
V
CC = Min, IOL = Max,
DM54
0.4
Output Voltage
V
IH = Min,a−g
DM74
0.35
0.5
I
OL = 3.2 mA, BI /RBO
DM74
0.5
V
I
OL = 12 mA, a – g
DM74
0.25
0.4
I
OL = 1.6 mA, BI /RBO
DM74
0.4
I
I
Input Current @ Max
V
CC = Max, VI = 7V
DM74
100
µA
Input Voltage
V
CC = Max, VI = 10V
DM54
I
IH
High Level Input Current
V
CC = Max, VI = 2.7V
20
µA
I
IL
Low Level Input Current
V
CC = Max, VI = 0.4V
−0.4
mA
I
OS
Short Circuit
V
CC = Max
DM54
−0.3
−2.0
mA
Output Current
(Note 5) , I
OS at BI/RBO
DM74
−0.3
−2.0
I
CC
Supply Current
V
CC = Max
13
mA
Note 4: All typicals are at VCC = 5V, TA = 25˚C.
Note 5: Not more than one output should be shorted at a time, and the duration should not exceed one second.
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