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SN74LS137 数据表(PDF) 3 Page - Motorola, Inc

部件名 SN74LS137
功能描述  3-LINE TO 8-LINE DECODERS/DEMULTIPLEXERS WITH ADDRESS LATCHES
PDF  5 Pages
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制造商  MOTOROLA [Motorola, Inc]
网页  http://www.freescale.com
标志 MOTOROLA - Motorola, Inc

SN74LS137 数据表(HTML) 3 Page - Motorola, Inc

  SN74LS137 Datasheet HTML 1Page - Motorola, Inc SN74LS137 Datasheet HTML 2Page - Motorola, Inc SN74LS137 Datasheet HTML 3Page - Motorola, Inc SN74LS137 Datasheet HTML 4Page - Motorola, Inc SN74LS137 Datasheet HTML 5Page - Motorola, Inc  
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FAST AND LS TTL DATA
SN54/74LS137
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
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
20
µA
VCC = MAX, VIN = 2.7 V
IIH
Input HIGH Current
0.1
mA
VCC = MAX, VIN = 7.0 V
IIL
Input LOW Current
– 0.4
mA
VCC = MAX, VIN = 0.4 V
IOS
Short Circuit Current (Note 1)
– 20
–100
mA
VCC = MAX
ICC
Power Supply Current
18
mA
VCC = MAX
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.
AC CHARACTERISTICS (VCC = 5.0 V, TA = 25°C)
Symbol
Parameter
Levels of
Delay
Limits
Unit
Test Conditions
Symbol
Parameter
Levels of
Delay
Min
Typ
Max
Unit
Test Conditions
tPLH
tPHL
Propagation Delay Time, A, B, C to Y
2
4
11
25
17
38
ns
VCC = 5.0 V
CL = 15 pF
tPLH
tPHL
Propagation Delay Time, A, B, C to Y
3
3
16
19
24
29
ns
VCC = 5.0 V
CL = 15 pF
tPLH
tPHL
Propagation Delay Time, Enable G2 to Y
2
2
13
16
21
27
ns
VCC = 5.0 V
CL = 15 pF
tPLH
tPHL
Propagation Delay Time, Enable G1 to Y
3
3
14
18
21
27
ns
tPLH
tPHL
Propagation Delay Time, Enable GL to Y
3
4
18
25
27
38
ns
AC SETUP REQUIREMENTS (TA = 25°C, VCC = 5.0 V)
Symbol
Parameter
Limits
Unit
Test Conditions
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
tW
Pulse Width — Enable at GL
15
ns
VCC = 5.0 V
ts
Setup Time, A, B, C
10
ns
VCC = 5.0 V
th
Hold Time, A, B, C
10
ns
CC = 5.0 V



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