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IC BLOCK DIAGRAMS AND DESCRIPTIONS
TC9162BFG(Function Switch)
2
S1
S2
3
COM1
4
5
S3
6
S4
COM2
7
S5
8
9
S6
10
10
COM3
TE
L 13942296513
11
11
S7
12
12
COM4
13
13
ST
27,26,24,23,21,20,18
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VSS
GND
1
14
14
SHIFT REGISTER
Symbol
Pin No.
Function
Vss
Negative power supply
1
GND
Ground
14
VDD
Positive power supply
28
S1~S7
Input/output terminals
2,3,5,6,8,9,11
S1~S7
Input/output terminals
COM1 ~ COM4
Common terminals
4,7,10,12
COM1 ~ COM4
Common terminals
25,22,19,17
ST
Strobe input terminal for data reading
13
C K
Clock input terminal for data transfer
15
DAT A
Data input terminal for switch
16
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2 9
8
VDD
28
28
Q Q
3
6 7
1 3
1 5
co
.
9 4
2 8
27
27
S1
26
26
S2
COM1
25
25
24
24
S3
23
23
S4
22
22
COM2
21
21
S5
20
20
S6
19
19
COM3
0 5
8
2 9
9 4
2 8
18
18
S7
17
17
COM4
16
16
DATA
CK
15
15
m
DTR-4.5
9 9
9 9
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