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DM74LS47 Folha de dados(PDF) 4 Page - Fairchild Semiconductor

Nome de Peças DM74LS47
Descrição Electrónicos  BCD to 7-Segment Decoder/Driver with Open-Collector Outputs
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Fabricante Electrônico  FAIRCHILD [Fairchild Semiconductor]
Página de início  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

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4
Absolute Maximum Ratings(Note 6)
Note 6: 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
Note 7: OFF-State at a–g.
Electrical Characteristics
Over recommended operating free air temperature range (unless otherwise noted)
Note 8: All typicals are at VCC = 5V, TA = 25°C.
Note 9: Not more than one output should be shorted at a time, and the duration should not exceed one second.
Switching Characteristics
at VCC = +5.0V, TA = +25°C
Note 10: LT
= HIGH, A0–A3 = LOW
Supply Voltage
7V
Input Voltage
7V
Operating Free Air Temperature Range
0
°C to +70°C
Storage Temperature Range
−65°C to +150°C
Symbol
Parameter
Min
Nom
Max
Units
VCC
Supply Voltage
4.75
5
5.25
V
VIH
HIGH Level Input Voltage
2
V
VIL
LOW Level Input Voltage
0.8
V
IOH
HIGH Level Output Current
−250
µA
a
− g @ 15V = V
OH (Note 7)
IOH
HIGH Level Output Current BI /RBO
−50
µA
IOL
LOW Level Output Current
24
mA
TA
Free Air Operating Temperature
0
70
°C
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 8)
VI
Input Clamp Voltage
VCC = Min, II = −18 mA
−1.5
V
VOH
HIGH Level
VCC = Min, IOH = Max,
2.7
3.4
V
Output Voltage
VIL = Max, BI /RBO
IOFF
Output HIGH Current Segment Outputs
VCC = 5.5V, VO = 15V a − g
250
µA
VOL
LOW Level
VCC = Min, IOL = Max,
0.35
0.5
Output Voltage
VIH = Min, a − g
IOL = 3.2 mA, BI /RBO
0.5
V
IOL = 12 mA, a –g
0.25
0.4
IOL = 1.6 mA, BI /RBO
0.4
II
Input Current @ Max
VCC = Max, VI = 7V
100
µA
Input Voltage
VCC = Max, VI = 10V
IIH
HIGH Level Input Current
VCC = Max, VI = 2.7V
20
µA
IIL
LOW Level Input Current
VCC = Max, VI = 0.4V
−0.4
mA
IOS
Short Circuit
VCC = Max (Note 9),
mA
Output Current
IOS at BI/RBO
−0.3
−2.0
ICC
Supply Current
VCC = Max
13
mA
RL = 665Ω
Symbol
Parameter
Conditions
CL = 15 pF
Units
Min
Max
tPLH
Propagation Delay
100
ns
tPHL
An to a –g
100
tPLH
Propagation Delay
100
ns
tPHL
RBI to a –g (Note 10)
100


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