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74LS138 数据表(PDF) 2 Page - Silicon Supplies

部件名 74LS138
功能描述  Low Power Schottky Logic
PDF  4 Pages
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制造商  SS [Silicon Supplies]
网页  https://siliconsupplies.com/
标志 SS - Silicon Supplies

74LS138 数据表(HTML) 2 Page - Silicon Supplies

  74LS138 Datasheet HTML 1Page - Silicon Supplies 74LS138 Datasheet HTML 2Page - Silicon Supplies 74LS138 Datasheet HTML 3Page - Silicon Supplies 74LS138 Datasheet HTML 4Page - Silicon Supplies  
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d
Low Power Schottky Logic – 74LS138
Rev 1.0
21/11/17
COORDINATES (mm)
PAD
FUNCTION
X
Y
1
A
0.173
0.875
2
B
0.197
0.169
3
C
0.361
0.171
4
G2A
0.725
0.176
5
G2B
0.929
0.184
6
G1
1.141
0.220
7
Y7
1.405
0.221
8
GND
1.425
0.461
9
Y6
1.393
0.695
10
Y5
1.398
1.054
11
Y4
1.198
1.395
12
Y3
1.022
1.395
13
Y2
0.804
1.395
14
Y1
0.524
1.395
15
Y0
0.202
1.395
16
VCC
0.135
1.099
CONNECT CHIP BACK TO GND OR FLOAT
Pad Layout and Functions
1660µm (65.35 mils)
0,0
13
12
11
10
9
8
4
3
2
1
DIE ID
7
6
5
14
15
16
Truth Table
INPUTS
OUTPUTS
G1
G2A
G2B
C
B
A
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
X
X
H
X
X
X
H
H
H
H
H
H
H
H
X
H
X
X
X
X
H
H
H
H
H
H
H
H
L
X
X
X
X
X
H
H
H
H
H
H
H
H
H
L
L
L
L
L
L
H
H
H
H
H
H
H
H
L
L
L
L
H
H
L
H
H
H
H
H
H
H
L
L
L
H
L
H
H
L
H
H
H
H
H
H
L
L
L
H
H
H
H
H
L
H
H
H
H
H
L
L
H
L
L
H
H
H
H
L
H
H
H
H
L
L
H
L
H
H
H
H
H
H
L
H
H
H
L
L
H
H
L
H
H
H
H
H
H
L
H
H
L
L
H
H
H
H
H
H
H
H
H
H
L
H = High level (steady state)
L = Low level (steady state)
X = Don’t care



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