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IC BLOCK DIAGRAMS AND DESCRIPTIONS
TC9164AF(Function switch)
2
S1
S2
3
S3
4
5
S4
6
COM1
S5
7
8
S6
9
COM2
10
10
S7
TE
L 13942296513
11
11
S8
12
12
COM3
13
13
ST
27,26,25,23,22,21,19,18
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VSS
1
SHIFT REGISTER
Pin No.
Symbol
1
Vss
14
GND
28
VDD
2,3,4,6,7,8,10,11
S1~S8
S1~S8
5,9,12
COM1 ~ COM3
24,20,17
COM1 ~ COM3
13
ST
15
C K
x
ao
16
DAT A
y
i
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8
GND
VDD
14
14
28
28
Q Q
3
6 7
1 3
Function
Negative power supply
Ground
Positive power supply
Input/output terminals
Input/output terminals
Common terminals
Common terminals
Strobe input terminal for data reading
Clock input terminal for data transfer
u163
Data input terminal for switch
.
2 9
9 4
2 8
S1
27
27
S2
26
26
S3
25
25
S4
24
24
COM1
23
23
S5
22
22
S6
21
21
COM2
20
20
S7
19
19
1 5
0 5
8
2 9
9 4
S8
18
18
17
17
COM3
16
16
DATA
CK
15
15
m
co
DTR-4.5
9 9
2 8
9 9
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