KD-S685/KD-S585
1-15
Description of major ICs
PT6523LQ (IC601) : LCD driver
1. Pin layout
2. Block digagram
3. Pin functions
1 ~ 16
48 ~ 33
32
~
17
49
~
64
COM1
VDD1
COMMON
DRIVER
CLOCK
GENERATOR
ADDRESS
DETECTOR
VDD2
VDD
VSS
INH
OSC
DI
CLK
CE
COM2 COM3
SEGMENT DRIVER & LATCH
SHIFT REGISTER
SG62 -------- SG5 SG4 SG3 SG2 SG1
Pin No.
1~52
53~55
56
57
58
59
60
61
62
63
64
I/O
O
O
-
I
I
I
-
I/O
I
I
I
Function
Segment output pin
Common driver output pin
Power supply
Display off control input pin
Used for 2/3 bias voltage when the bias voltages are
provided externally
Used for 1/3 bias voltage when the bias voltages are
provided externally
Ground pin
Oscillation Input/Output pin
Chip enable pin
Synchronization clock
Transfer data pin
Symbol
SG1~SEG52
COM1~COM3
VDD
INH
VDD1
VDD2
VSS
OSC
CE
CLK
DI
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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