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SN54LS157 Datasheet(PDF) 3 Page - Motorola, Inc

Part # SN54LS157
Description  QUAD 2-INPUT MULTIPLEXER
Download  5 Pages
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Manufacturer  MOTOROLA [Motorola, Inc]
Direct Link  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

SN54LS157 Datasheet(HTML) 3 Page - Motorola, Inc

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FAST AND LS TTL DATA
SN54/74LS157
DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE (unless otherwise specified)
Symbol
Parameter
Limits
Unit
Test Conditions
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
VIH
Input HIGH Voltage
2.0
V
Guaranteed Input HIGH Voltage for
All Inputs
VIL
Input LOW Voltage
54
0.7
V
Guaranteed Input LOW Voltage for
All Inputs
VIL
Input LOW Voltage
74
0.8
V
Guaranteed Input LOW Voltage for
All Inputs
VIK
Input Clamp Diode Voltage
– 0.65
– 1.5
V
VCC = MIN, IIN = – 18 mA
VOH
Output HIGH Voltage
54
2.5
3.5
V
VCC = MIN, IOH = MAX, VIN = VIH
or VIL per Truth Table
VOH
Output HIGH Voltage
74
2.7
3.5
V
VCC = MIN, IOH = MAX, VIN = VIH
or VIL per Truth Table
VOL
Output LOW Voltage
54, 74
0.25
0.4
V
IOL = 4.0 mA
VCC = VCC MIN,
VIN = VIL or VIH
per Truth Table
VOL
Output LOW Voltage
74
0.35
0.5
V
IOL = 8.0 mA
VIN = VIL or VIH
per Truth Table
IIH
Input HIGH Current
I0, I1
E, S
20
40
µA
VCC = MAX, VIN = 2.7 V
IIH
I0, I1
E, S
0.1
0.2
mA
VCC = MAX, VIN = 7.0 V
IIL
Input LOW Current
I0, I1
E, S
– 0.4
– 0.8
mA
VCC = MAX, VIN = 0.4 V
IOS
Short Circuit Current (Note 1)
– 20
– 100
mA
VCC = MAX
ICC
Power Supply Current
16
mA
VCC = MAX
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS (TA = 25°C)
Symbol
Parameter
Limits
Unit
Test Conditions
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
tPLH
tPHL
Propagation Delay
Data to Output
9.0
9.0
14
14
ns
Figure 2
VCC = 5.0 V
CL = 15 pF
tPLH
tPHL
Propagation Delay
Enable to Output
13
14
20
21
ns
Figure 1
VCC = 5.0 V
CL = 15 pF
tPLH
tPHL
Propagation Delay
Select to Output
15
18
23
27
ns
Figure 2
AC WAVEFORMS
Figure 1
Figure 2
VIN
VOUT
1.3 V
tPHL
1.3 V
1.3 V
1.3 V
tPLH
VIN
VOUT
1.3 V
tPHL
1.3 V
1.3 V
tPLH
1.3 V


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