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SN54LS85 Datasheet(PDF) 2 Page - Motorola, Inc

Part No. SN54LS85
Description  4-BIT MAGNITUDE COMPARATOR
Download  4 Pages
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Maker  MOTOROLA [Motorola, Inc]
Homepage  http://www.freescale.com
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SN54LS85 Datasheet(HTML) 2 Page - Motorola, Inc

   
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H = HIGH Level
L = LOW Level
X = IMMATERIAL
5-85
FAST AND LS TTL DATA
SN54/74LS85
LOGIC DIAGRAM
OA>B
OA<B
OA=B
(5)
(6)
(7)
A3
B3
A2
B2
A<B
A=B
A>B
A1
B1
A0
B0
(15)
(1)
(13)
(14)
(12)
(11)
(10)
(9)
(2)
(3)
(4)
TRUTH TABLE
COMPARING INPUTS
CASCADING
INPUTS
OUTPUTS
A3,B3
A2,B2
A1,B1
A0,B0
IA>B
IA<B
IA=B
OA>B
OA<B
OA=B
A3>B3
X
X
X
X
X
X
H
L
L
A3<B3
X
X
X
X
X
X
L
H
L
A3=B3
A2>B2
X
X
X
X
X
H
L
L
A3=B3
A2<B2
X
X
X
X
X
L
H
L
A3=B3
A2=B2
A1>B1
X
X
X
X
H
L
L
A3=B3
A2=B2
A1<B1
X
X
X
X
L
H
L
A3=B3
A2=B2
A1=B1
A0>B0
X
X
X
H
L
L
A3=B3
A2=B2
A1=B1
A0<B0
X
X
X
L
H
L
A3=B3
A2=B2
A1=B1
A0=B0
H
L
L
H
L
L
A3=B3
A2=B2
A1=B1
A0=B0
L
H
L
L
H
L
A3=B3
A2=B2
A1=B1
A0=B0
X
X
H
L
L
H
A3=B3
A2=B2
A1=B1
A0=B0
H
H
L
L
L
L
A3=B3
A2=B2
A1=B1
A0=B0
L
L
L
H
H
L
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


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