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54HC138 Datasheet(PDF) 2 Page - Silicon Supplies

Part # 54HC138
Description  High Speed CMOS Logic
PDF  6 Pages
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Manufacturer  SS [Silicon Supplies]
Direct Link  https://siliconsupplies.com/
Logo SS - Silicon Supplies

54HC138 Datasheet(HTML) 2 Page - Silicon Supplies

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High Speed CMOS Logic – 54HC138
Rev 1.0
23/11/17
COORDINATES (mm)
PAD
FUNCTION
X
Y
1
A0
0.149
0.823
2
A1
0.149
0.409
3
A2
0.111
0.239
4
CS2
0.446
0.129
5
CS3
0.723
0.129
6
CS1
1.004
0.129
7
Y7
1.195
0.203
8
GND
1.217
0.566
9
Y6
1.207
0.832
10
Y5
1.197
1.204
11
Y4
1.000
1.294
12
Y3
0.827
1.294
13
Y2
0.653
1.294
14
Y1
0.479
1.294
15
Y0
0.178
1.238
16
VCC
0.147
0.980
CONNECT CHIP BACK TO VCC OR FLOAT
Pad Layout and Functions
1450µm (57.09 mils)
Truth Table
0,0
1
12
11
10
8
6
5
4
3
2
DIE ID
7
9
13
14
15
16
INPUTS
OUTPUTS
CS1
CS2
CS3
A2
A1
A0
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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