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5
Block Diagram
Pin Function
Name
Pin No.
CLK
86
DA
91
DB
85
LE
40
CLR
92
A/B
84
OC1
89
OC2
90
99, 100, 1-28
HVO
36-40, 48-76
VDD
88
30-32, 44-46
GND
81-82, 93, 94-95
VH1
34, 35, 97, 98
VH2
41, 42, 78, 79
29, 33, 43, 47
NC
77, 80, 83, 96
5
6
I/O
Num.
I
1
Shift clock (start edge partial response)
I/O
1
The serial data input of shifting register
I/O
1
The serial data output of shifting register
I
1
It output data done a latch of by "H" level
I
1
It do data of shift register with "H" by "L" level
I
1
A shift directional control signal of shift register
I
1
An output control terminal of HVO
I
1
An output control terminal of HVO
O
64
High voltage drive output (HVO1 - HVO64)
−
1
Logic power supply
−
11
Standard potential. This is common to HVO1 - HVO64.
−
4
The high potential circuit power supply which is common to HVO1 - HVO32
−
4
The high potential circuit power supply which is common to HVO33 - HVO64
−
8
It is the insulation electrically
PDP-503PC
6
7
Function
7
8
A
B
C
D
E
F
89
8
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