DM74LS47MX 查看數據表（PDF） - Fairchild Semiconductor
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DM74LS47MX Datasheet PDF : 6 Pages
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Absolute Maximum Ratings(Note 6)
Supply Voltage
7V
Input Voltage
7V
Operating Free Air Temperature Range 0°C to +70°C
Storage Temperature Range
−65°C to +150°C
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
Symbol
Parameter
VCC
Supply Voltage
VIH
HIGH Level Input Voltage
VIL
LOW Level Input Voltage
IOH
HIGH Level Output Current
a − g @ 15V = VOH (Note 7)
IOH
HIGH Level Output Current BI /RBO
IOL
LOW Level Output Current
TA
Free Air Operating Temperature
Note 7: OFF-State at a–g.
Min
4.75
2
0
Nom
5
Max
5.25
0.8
−250
−50
24
70
Units
V
V
V
µA
µA
mA
°C
Electrical Characteristics
Over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
Min
VI
Input Clamp Voltage
VCC = Min, II = −18 mA
VOH
HIGH Level
Output Voltage
VCC = Min, IOH = Max,
2.7
VIL = Max, BI /RBO
IOFF
Output HIGH Current Segment Outputs VCC = 5.5V, VO = 15V a − g
VOL
LOW Level
VCC = Min, IOL = Max,
Output Voltage
VIH = Min, a − g
IOL = 3.2 mA, BI /RBO
IOL = 12 mA, a –g
IOL = 1.6 mA, BI /RBO
II
Input Current @ Max
VCC = Max, VI = 7V
Input Voltage
VCC = Max, VI = 10V
IIH
HIGH Level Input Current
VCC = Max, VI = 2.7V
IIL
LOW Level Input Current
VCC = Max, VI = 0.4V
IOS
Short Circuit
VCC = Max (Note 9),
Output Current
IOS at BI/RBO
−0.3
ICC
Supply Current
VCC = Max
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.
Typ
(Note 8)
3.4
0.35
0.25
Max
−1.5
250
0.5
0.5
0.4
0.4
100
20
−0.4
−2.0
13
Units
V
V
µA
V
µA
µA
mA
mA
mA
Switching Characteristics
at VCC = +5.0V, TA = +25°C
Symbol
Parameter
tPLH
Propagation Delay
tPHL
An to a –g
tPLH
Propagation Delay
tPHL
RBI to a –g (Note 10)
Note 10: LT = HIGH, A0–A3 = LOW
Conditions
RL = 665Ω
CL = 15 pF
Min
Max
100
100
100
100
Units
ns
ns
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