96
HCD-SR4W
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
w
w
w
.
x
i
a
o
y
u
1
6
3
.
c
o
m
Q
Q
3
7
6
3
1
5
1
5
0
9
9
2
8
9
4
2
9
8
T
E
L
1
3
9
4
2
2
9
6
5
1
3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com
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