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KS-FX893
LC75873NW (IC601) : LCD driver
1.Block diagram
VDD1
COMMOM
DRIVER
VDD2
INH
CLOCK
OSC
GENERATOR
VDD
VSS
2.Pin functions
Pin No.
Symbol
1~66
S3~S68
67~69
COM1~3
70
VDD
71
VDD1
72
VDD2
73
VSS
74
OSC
75
INH
76
CE
77
CLOCK
78
DI
79
DIMMER
80
NC
1-24
SEGMENT DRIVER
SHIFT REGISTER
I/O
O
Segment Output.
O
Common Driver Output.
-
Power Supply Connection.
I
Used for applying the LCD drive 2/3 bias voltage externally.
Must be connected to VDD2 when a 1/2 bias drive scheme in 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 in used.
-
Power supply connection.
I/O
Oscillator connection. An oscillator circuit is formed by connecting an
external resistor and capacitor to this pin.
I
Display off control input.
I
Chip enable input.
I
Synchronization clock input.
I
Serial data input.
O
DIMMER Control signal output.
-
Non connect.
ADDRESS
DETECTOR
Description
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