KS-FX321
1-22 (No.49771)
4.7 HD74HC126P (IC751) : Changer control
• Pin arrangement
• Pin function
• Block diagram
1
1C
2
1A
3
1Y
4
2C
5
2A
6
2Y
7
GND
Vcc
4C
4A
4Y
3C
3A
3Y
( TOP VIEW )
14
13
12
11
10
9
8
Input
Output
C
A
Y
L
X
Z
H
L
L
H
H
H
1A
1Y
2Y
3Y
4Y
1C
2A
2C
3A
4C
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8
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5
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5
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6
7
3
Q
Q
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