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74LS148 数据表(PDF) 2 Page - Motorola, Inc

部件名 74LS148
功能描述  10-LINE-TO-4-LINE AND 8-LINE-TO-3-LINE PRIORITY ENCODERS
PDF  7 Pages
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制造商  MOTOROLA [Motorola, Inc]
网页  http://www.freescale.com
标志 MOTOROLA - Motorola, Inc

74LS148 数据表(HTML) 2 Page - Motorola, Inc

  74LS148 Datasheet HTML 1Page - Motorola, Inc 74LS148 Datasheet HTML 2Page - Motorola, Inc 74LS148 Datasheet HTML 3Page - Motorola, Inc 74LS148 Datasheet HTML 4Page - Motorola, Inc 74LS148 Datasheet HTML 5Page - Motorola, Inc 74LS148 Datasheet HTML 6Page - Motorola, Inc 74LS148 Datasheet HTML 7Page - Motorola, Inc  
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5-246
FAST AND LS TTL DATA
SN54/74LS147
• SN54/74LS148 • SN54/74LS748
SN54 / 74LS147
FUNCTION TABLE
INPUTS
OUTPUTS
1
2
3
4
5
6
7
8
9
D
C
B
A
H
H
H
H
H
H
H
H
H
H
H
H
H
X
X
X
X
X
X
X
X
L
L
H
H
L
X
X
X
X
X
X
X
L
H
L
H
H
H
X
X
X
X
X
X
L
H
H
H
L
L
L
X
X
X
X
X
L
H
H
H
H
L
L
H
X
X
X
X
L
H
H
H
H
H
L
H
L
X
X
X
L
H
H
H
H
H
H
L
H
H
X
X
L
H
H
H
H
H
H
H
H
L
L
X
L
H
H
H
H
H
H
H
H
H
L
H
L
H
H
H
H
H
H
H
H
H
H
H
L
SN54 / 74LS148
SN54 / 74LS748
FUNCTION TABLE
INPUTS
OUTPUTS
EI
0
1
2
3
4
5
6
7
A2
A1
A0
GS
EO
H
X
X
X
X
X
X
X
X
H
H
H
H
H
L
H
H
H
H
H
H
H
H
H
H
H
H
L
L
X
X
X
X
X
X
X
L
L
L
L
L
H
L
X
X
X
X
X
X
L
H
L
L
H
L
H
L
X
X
X
X
X
L
H
H
L
H
L
L
H
L
X
X
X
X
L
H
H
H
L
H
H
L
H
L
X
X
X
L
H
H
H
H
H
L
L
L
H
L
X
X
L
H
H
H
H
H
H
L
H
L
H
L
X
L
H
H
H
H
H
H
H
H
L
L
H
L
L
H
H
H
H
H
H
H
H
H
H
L
H
H = HIGH Logic Level, L = LOW Logic Level, X = Irrelevant
FUNCTIONAL BLOCK DIAGRAMS
SN54 / 74LS147
SN54 / 74LS148
1
2
3
4
5
6
7
8
9
(11)
(12)
(13)
(1)
(2)
(3)
(4)
(5)
(10)
(9)
(7)
(6)
(14)
A
B
C
D
0
1
2
3
4
5
6
7
EI
(10)
(11)
(12)
(13)
(1)
(2)
(3)
(4)
(5)
(15)
EO
(14)
GS
(8)
A0
(7)
A1
(6)
A2



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