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IC BLOCK DIAGRAM AND DESCRIPTION
TC9164BFG(Function Switch)
2
S1
3
S2
4
S3
5
S4
6
COM1
7
S5
8
S6
9
COM2
10
10
S7
11
11
S8
12
12
COM4
13
13
ST
Pin No.
1
14
28
2,3,4,5,7,8,10,11
27,26,25,24,22,21,18,17
6,9,12
23,20,17
13
15
16
VSS
GND
VDD
1
14
14
28
28
SHIFT REGISTER
Symbol
Function
Vss
Negative power supply
GND
Ground
VDD
Positive power supply
S1~S8
Input/output terminals
S1~S8
Input/output terminals
COM1 ~ COM3
Common terminals
COM1 ~ COM3
Common terminals
ST
Strobe input terminal for data reading
C K
Clock input terminal for data transfer
DAT A
Data input terminal for switch
27
27
S1
26
26
S2
25
25
S3
24
24
S4
23
23
COM1
22
22
S5
21
21
S6
20
20
COM2
19
19
S7
18
18
S8
17
17
COM4
DATA
16
16
CK
15
15
TX-NR1000
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