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74LS138 Datasheet(PDF) 2 Page - Silicon Supplies

Part # 74LS138
Description  Low Power Schottky Logic
PDF  4 Pages
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Manufacturer  SS [Silicon Supplies]
Direct Link  https://siliconsupplies.com/
Logo SS - Silicon Supplies

74LS138 Datasheet(HTML) 2 Page - Silicon Supplies

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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
G2A
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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