43
HCD-SR1/SR2/SR3
Pin No.
Pin Name
I/O
Description
167
XTAL
I
33.8688 MHz clock signal input terminal
168
VSS
—
Ground terminal (digital system)
169
XTL2
O
System clock output terminal (33.8688 MHz)
170
XTL1
I
System clock input terminal (33.8688 MHz)
171
VDD
—
Power supply terminal (+3.3V) (digital system)
172 to 176
D0 to D4
I/O
Two-way data bus with the mechanism controller
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9
9
2
8
9
4
2
9
8
TEL 13942296513
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
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