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LC75863W データシート(PDF) 6 Page - Sanyo Semicon Device

部品番号 LC75863W
部品情報  1/3 Duty LCD Display Drivers with Key Input Function
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メーカー  SANYO [Sanyo Semicon Device]
ホームページ  https://www.sanyo-av.com/us/
Logo SANYO - Sanyo Semicon Device

LC75863W データシート(HTML) 6 Page - Sanyo Semicon Device

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No. 7135-6/24
LC75863E, 75863W
Pin
Pin No.
Function
Active
I/O
Handling
when unused
S1/P1
1
S2/P2
2
S3/P3
3
q
q
OPEN
S4/P4
4
S5 to S23
5 to 23
COM1
24
COM2
25
q
q
OPEN
COM3
26
KS1/S24
27
KS2/S25
28
O
OPEN
KS3 to KS6
29 to 32
KI1 to KI5
33 to 37
H
I
GND
OSC
44
I/O
VDD
CE
46
H
I
CL
47
I
GND
DI
48
I
DO
45
O
OPEN
TEST
43
This pin must be connected to ground.
I
VLCD1
40
I
OPEN
VLCD2
41
I
OPEN
VDD
38
VLCD
39
VSS
42
Power supply connection. Connect to ground.
Pin Functions
Segment outputs for displaying the display data transferred by serial data input.
The S1/P1 to S4/P4 pins can be used as general-purpose output ports under serial
data control.
Common driver outputs
The frame frequency fo is given by : fo = (fOSC/384)Hz.
Key scan outputs
Although normal key scan timing lines require diodes to be inserted in the timing lines
to prevent shorts, since these outputs are unbalanced CMOS transistor outputs, these
outputs will not be damaged by shorting when these outputs are used to form a key
matrix. The KS1/S24 and KS2/S25 pins can be used as segment outputs when so
specified by the control data.
Key scan inputs
These pins have built-in pull-down resistors.
Oscillator connection
An oscillator circuit is formed by connecting an external resistor and capacitor at this
pin.
Serial data interface connections to the controller. Note that DO, being an open-drain
output, requires a pull-up resistor.
CE :Chip enable
CL :Synchronization clock
DI :Transfer data
DO :Output data
v
Used for applying the LCD drive 2/3 bias voltage externally. Must be connected to
VLCD2 when a 1/2 bias drive scheme is used.
Used for applying the LCD drive 1/3 bias voltage externally. Must be connected to
VLCD1 when a 1/2 bias drive scheme is used.
Logic block power supply connection. Provide a voltage of between 4.5 and 6.0V.
LCD driver block power supply connection. Provide a voltage of between VDD–0.5 and
6.0V.


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