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74LS85 数据表(PDF) 3 Page - SYC Electronica

部件名 74LS85
功能描述  4-Bit Magnitude Comparator
PDF  7 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  SYC [SYC Electronica]
网页  https://www.sycelectronica.com.ar/index.php
标志 SYC - SYC Electronica

74LS85 数据表(HTML) 3 Page - SYC Electronica

  74LS85 Datasheet HTML 1Page - SYC Electronica 74LS85 Datasheet HTML 2Page - SYC Electronica 74LS85 Datasheet HTML 3Page - SYC Electronica 74LS85 Datasheet HTML 4Page - SYC Electronica 74LS85 Datasheet HTML 5Page - SYC Electronica 74LS85 Datasheet HTML 6Page - SYC Electronica 74LS85 Datasheet HTML 7Page - SYC Electronica  
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background image
H = HIGH Level
L = LOW Level
X = IMMATERIAL
SN74LS85
3
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
XX
X
X
XX
L
HL
A3=B3
A2>B2
XX
X
XX
H
LL
A3=B3
A2<B2
XX
X
XX
L
HL
A3=B3
A2=B2
A1>B1
XX
XX
H
LL
A3=B3
A2=B2
A1<B1
XX
XX
L
HL
A3=B3
A2=B2
A1=B1
A0>B0
X
XX
H
LL
A3=B3
A2=B2
A1=B1
A0<B0
X
XX
L
HL
A3=B3
A2=B2
A1=B1
A0=B0
H
LL
H
LL
A3=B3
A2=B2
A1=B1
A0=B0
L
HL
L
HL
A3=B3
A2=B2
A1=B1
A0=B0
X
XH
L
LH
A3=B3
A2=B2
A1=B1
A0=B0
H
HL
L
LL
A3=B3
A2=B2
A1=B1
A0=B0
L
L
L
H
H
L
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