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DM74157N Datasheet(PDF) 2 Page - Fairchild Semiconductor

No. de pieza DM74157N
Descripción Electrónicos  Quad 2-Line to 1-Line Data Selectors/Multiplexer
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Fabricante Electrónico  FAIRCHILD [Fairchild Semiconductor]
Página de inicio  http://www.fairchildsemi.com
Logo FAIRCHILD - Fairchild Semiconductor

DM74157N Datasheet(HTML) 2 Page - Fairchild Semiconductor

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Absolute Maximum Ratings(Note 1)
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
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Note 2: All typicals are at VCC = 5V, TA = 25°C.
Note 3: Not more than one output should be shorted at a time.
Note 4: ICC is measured with 4.5V applied to all inputs and all outputs OPEN.
Switching Characteristics
at VCC = 5V and TA = 25°C
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
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
−0.8
mA
IOL
LOW Level Output Current
16
mA
TA
Free Air Operating Temperature
0
70
°C
Symbol
Parameter
Conditions
Min
Typ
Max
Units
(Note 2)
VI
Input Clamp Voltage
VCC = Min, II = −12 mA
−1.5
V
VOH
HIGH Level
VCC = Min, IOH = Max
2.4
3.4
V
Output Voltage
VIL = Max, VIH = Min
VOL
LOW Level
VCC = Min, IOL = Max
0.4
V
Output Voltage
VIH = Min, VIL = Max
II
Input Current @ Max Input Voltage
VCC = Max, VI = 5.5V
1
mA
IIH
HIGH Level Input Current
VCC = Max, VI = 2.4V
40
µA
IIL
LOW Level Input Current
VCC = Max, VI = 0.4V
−1.6
mA
IOS
Short Circuit Output Current
VCC = Max (Note 3)
−18
−55
mA
ICC
Supply Current
VCC = Max (Note 4)
30
48
mA
Symbol
Parameter
From (Input)
RL = 400Ω, CL = 15 pF
Units
To (Output)
Min
Max
tPLH
Propagation Delay Time
Data to Y
14
ns
LOW-to-HIGH Level Output
tPHL
Propagation Delay Time
Data to Y
14
ns
HIGH-to-LOW Level Output
tPLH
Propagation Delay Time
Strobe to Y
20
ns
LOW-to-HIGH Level Output
tPHL
Propagation Delay Time
Strobe to Y
21
ns
HIGH-to-LOW Level Output
tPLH
Propagation Delay Time
Select to Y
23
ns
LOW-to-HIGH Level Output
tPHL
Propagation Delay Time
Select to Y
27
ns
HIGH-to-LOW Level Output


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