74145N 데이터 시트보기 (PDF) - Fairchild Semiconductor
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74145N Datasheet PDF : 4 Pages
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Absolute Maximum Ratings(Note 1)
Supply Voltage
7V
Input Voltage
5.5V
Operating Free Air Temperature Range 0°C to +70°C
Storage Temperature Range
−65°C to +150°C
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
Symbol
VCC
VIH
VIL
VOH
IOL
TA
Parameter
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Voltage
LOW Level Output Current
Free Air Operating Temperature
Min
Nom
Max
Units
4.75
5
5.25
V
2
V
0.8
V
15
V
20
mA
0
70
°C
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol
Parameter
Conditions
VI
Input Clamp Voltage
ICEX
HIGH Level
Output Current
VOL
LOW Level
Output Voltage
II
Input Current @ Max Input Voltage
IIH
HIGH Level Input Current
IIL
LOW Level Input Current
ICC
Supply Current
Note 2: All typicals are at VCC = 5V, TA = 25°C.
VCC = Min, II = −12 mA
VCC = Min, VOH = Max
VIL = Max, VIH = Min
VCC = Min, IOL = Max
VIH = Min, VIL = Max
IOL = 80 mA
VCC = Min
VCC = Max, VI = 5.5V
VCC = Max, VI = 2.4V
VCC = Max, VI = 0.4V
VCC = Max (Note 3)
Note 3: ICC is measured with all outputs open and all inputs grounded.
Typ
Min
Max
(Note 2)
−1.5
250
0.4
0.5
0.9
1
40
−1.6
43
70
Units
V
µA
V
mA
µA
mA
mA
Switching Characteristics
at VCC = 5V and TA = 25°C
Symbol
Parameter
tPLH
Propagation Delay Time
LOW-to-HIGH Level Output
tPHL
Propagation Delay Time
HIGH-to-LOW Level Output
CL = 15 pF
RL = 100Ω
Conditions
Min
Max
Units
30
ns
30
ns
3
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