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SN54LS283 Datasheet(Fiches technique) 3 Page - Motorola, Inc

Numéro de pièce SN54LS283
Description  4-BIT BINARY FULL ADDER WITH FAST CARRY
Télécharger  4 Pages
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Fabricant  MOTOROLA [Motorola, Inc]
Site Internet  http://www.freescale.com
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5-3
FAST AND LS TTL DATA
SN54/74LS283
FUNCTIONAL TRUTH TABLE
C (n – 1)
An
Bn
∑n
Cn
L
L
L
L
L
L
L
H
H
L
L
H
L
H
L
L
H
H
L
H
H
L
L
H
L
H
L
H
L
H
H
H
L
L
H
H
H
H
H
H
C1 – C3 are generated internally
C0 is an external input
C4 is an output generated internally
GUARANTEED OPERATING RANGES
Symbol
Parameter
Min
Typ
Max
Unit
VCC
Supply Voltage
54
74
4.5
4.75
5.0
5.0
5.5
5.25
V
TA
Operating Ambient Temperature Range
54
74
– 55
0
25
25
125
70
°C
IOH
Output Current — High
54, 74
– 0.4
mA
IOL
Output Current — Low
54
74
4.0
8.0
mA
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
C0
20
µA
VCC = MAX, VIN = 2.7 V
IIH
Input HIGH Current
Any A or B
40
µA
VCC = MAX, VIN = 2.7 V
IIH
Input HIGH Current
C0
0.1
mA
VCC = MAX, VIN = 7.0 V
Any A or B
0.2
mA
VCC = MAX, VIN = 7.0 V
IIL
Input LOW Current
C0
– 0.4
mA
VCC = MAX, VIN = 0.4 V
IIL
Input LOW Current
Any A or B
– 0.8
mA
VCC = MAX, VIN = 0.4 V
IOS
Short Circuit Current (Note 1)
– 20
– 100
mA
VCC = MAX
ICC
Power Supply Current
Total, Output HIGH
34
mA
VCC = MAX
ICC
Total, Output LOW
39
mA
VCC = MAX
Note 1: Not more than one output should be shorted at a time, nor for more than 1 second.




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