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LC75823W (IC651) : LCD driver
1. Pin Layout & Symbol
S1
1
S2
2
S3
3
S4
4
5
S5
S6
6
S7
7
S8
8
S9
9
S10
10
S11
11
S12
12
S13
13
S14
14
S15
15
S16
16
TE
2. Pin Function
L 13942296513
Pin No.
Symbol
1 to 52
S1 to S52
53 to 55
COM1 to COM3
56
VDD
57
INH
58
VDDD1
59
VDD2
60
Vss
61
OSC
www
62
CE
63
CL
.
64
DI
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64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
I/O
O
Segment output pins used to display data transferred
by serial data input.
O
Common driver output pins. The frame frequency is given
by : t0=(fosc/384)Hz.
--
Power supply connection. Provide a voltage of between
4.5 and 6.0V.
I
Display turning off input pin.
INT="L" (Vss) ----- off (S1 to S52, COM1 to COM3="L"
INT="H" (VDD)----- on
Serial data can be transferred in display off mode.
I
Used for applying the LCD drive 2/3 bias voltage
externally.
Must be connected to VDD2 when a 1/2 bias drive scheme
is used.
I
Used for applying the LCD drive 1/3 bias voltage
externally.
Must be connected to VDD1 when a 1/2 bias drive scheme
is used.
--
Power supply connection. Connect to GND.
I/O
Oscillator connection.
An oscillator circuit is formed by connecting an external
resistor and capacitor at this pin.
Serial data
x
ao
interface connection
y
I
to the controller.
i
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8
48
S48
47
S47
46
S46
45
S45
44
S44
43
S43
42
S42
41
S41
40
S40
39
S39
38
S38
37
S37
36
S36
35
S35
34
S34
33
S33
Q Q
3
6 7
1 3
Function
CE : Chip enable
u163
CL : Sync clock
.
DI : Transfer data
2 9
9 4
2 8
1 5
0 5
8
2 9
9 4
m
co
KS-FX7
9 9
2 8
9 9
1-23
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