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DM74S158 Ver la hoja de datos (PDF) - Fairchild Semiconductor

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DM74S158 Quad 1 of 2 Line Data Selector/Multiplexer Fairchild
Fairchild Semiconductor Fairchild
DM74S158 Datasheet PDF : 5 Pages
1 2 3 4 5
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.
DM74157 Recommended Operating Conditions
Symbol
VCC
VIH
VIL
IOH
IOL
TA
Parameter
Supply Voltage
HIGH Level Input Voltage
LOW Level Input Voltage
HIGH Level Output Current
LOW Level Output Current
Free Air Operating Temperature
Min
Nom
Max
Units
4.75
5
5.25
V
2
V
0.8
V
1
mA
20
mA
0
70
°C
DM74S157 Electrical Characteristics
over recommended operating free air temperature (unless otherwise noted)
Symbol
Parameter
Conditions
Min
VI
Input Clamp Voltage
VCC = Min, II = −18 mA
VOH
HIGH Level
VCC = Min, IOH = Max
2.7
Output Voltage
VIL = Max, VIH = Min
VOL
LOW Level
VCC = Min, IOL = Max
Output Voltage
VIH = Min, VIL = Max
II
Input Current @ Max Input Voltage VCC = Max, VI = 5.5V
IIH
HIGH Level
VCC = Max
S or G
Input Current
VI = 2.7V
A or B
IIL
HIGH Level
VCC = Max
S or G
Input Current
VI = 0.5V
A or B
IOS
Short Circuit Output Current
VCC = Max (Note 3)
40
ICC
Supply Current
VCC = Max (Note 4)
Note 2: All typicals are at VCC = 5V, TA = 25°C.
Note 3: Not more than one output should be shorted at a time, and the duration should not exceed one second.
Note 4: ICC is measured 4.5V applied to all inputs and all outputs OPEN.
Typ
(Note 2)
3.4
50
Max
1.2
0.5
1
100
50
4
2
100
78
Units
V
V
V
mA
µA
mA
mA
mA
DM74S157 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
tPLH
Propagation Delay Time
LOW-to-HIGH Level Output
tPHL
Propagation Delay Time
HIGH-to-LOW Level Output
tPLH
Propagation Delay Time
LOW-to-HIGH Level Output
tPHL
Propagation Delay Time
HIGH-to-LOW Level Output
From (Input)
To (Output)
Data to Y
Data to Y
Strobe to Y
Strobe to Y
Select to Y
Select to Y
RL = 280
CL = 15 pF
CL = 50 pF
Min
Max
Min
Max
7.5
10
6.5
10
12.5
15
12
15
15
17
15
17
Units
ns
ns
ns
ns
ns
ns
3
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