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1
3
4
2
A
B
C
D
E
F
G
H
I
J
– 94 –
5
6
7
8
9
10
11
12
13
14
– 95 –
A(4/4) BOARD : IC1603 MC14053BFEL
A(4/4) BOARD : IC1609, 1608 TC74HC163AF(EL)
OUTPUTS
RIPPLE
CARRY
ENABLE
O A
O B
O C
O D
Vcc
OUTPUT
T
LOAD
B1
1
16
15
14
13
12
11
9
10
B0
2
RIPPLE
O A
O B
O C
O D
ENABLE
CARRY
T
OUTPUT
C1
3
CLEAR
LOAD
ENABLE
C. COM
C K
4
A
B
C
D
P
C0
5
1
2
3
4
5
6
7
8
CLEAR
CLOCK
C
ENABLE
GND
A
B
D
P
INH
6
DATA INPUTS
VEE
7
VSS
8
15
16
17
18
19
– 96
–
16
VDD
15
B. COM
OPEN
14
A. COM
A1
13
OPEN
12
A0
11
A
10
B
9
C
OPEN
20
21
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