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Part Name
Description
CD74HC393 View Datasheet(PDF) - Harris Semiconductor
Part Name
Description
View to exact match
CD74HC393
High Speed CMOS Logic Dual 4 -Stage Binary Counter
Harris Semiconductor
CD74HC393 Datasheet PDF : 7 Pages
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Functional Diagram
CD74HC393, CD74HCT393
1
1CP
2
1MR
13
2CP
12
2MR
BINARY
COUNTER
BINARY
COUNTER
3
1Q
0
4
1Q
1
5
1Q
2
6
1Q
3
11
2Q
0
10
2Q
1
9
2Q
2
8
2Q
3
GND = 7
V
CC
= 14
TRUTH TABLE
OUTPUTS
CP COUNT
Q
0
Q
1
Q
2
Q
3
0
L
L
L
L
1
H
L
L
L
2
L
H
L
L
3
H
H
L
L
4
L
L
H
L
5
H
L
H
L
6
L
H
H
L
7
H
H
H
L
8
L
L
L
H
9
H
L
L
H
10
L
H
L
H
11
H
H
L
H
12
L
L
H
H
13
H
L
H
H
14
L
H
H
H
15
H
H
H
H
CP COUNT
MR
OUTPUT
↑
L
No Change
↓
L
Count
X
H
LLLL
NOTE: H = High Voltage Level, L = Low Voltage Level, X = Don’t Care,
↑
= Transition from Low to High Level,
↓
= Transition from High to Low.
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