LC75864W View Datasheet(PDF) - SANYO -> Panasonic
Part Name
Description
Manufacturer
LC75864W Datasheet PDF : 26 Pages
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Pin Functions
Pin
Pin No.
S1/P1 to S4/P4
S5 to S22
1 to 4
5 to 22
COM1
23
COM2
24
COM3
25
COM4
26
LC75864E, 75864W
Function
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/512) Hz.
Active
Handling
I/O when unused
—
O
Open
—
O
Open
KS1/S23
KS2/S24
KS3 to KS6
Key scan outputs
27
Although normal key scan timing lines require diodes to be inserted in the
28
timing lines to prevent shorts, since these outputs are unbalanced CMOS
transistor outputs, these outputs will not be damaged by shorting when
—
29 to 32
these outputs are used to form a key matrix. The KS1/S23 and KS2/S24
pins can be used as segment outputs when so specified by the control data.
O
Open
KI1 to KI5
OSC
CE
CL
DI
DO
TEST
VLCD1
VLCD2
VDD
VLCD
VSS
33 to 37
44
46
47
48
45
43
40
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
This pin must be connected to ground.
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.
H
I
GND
—
I/O
VDD
H
I
I
GND
—
I
—
O
Open
—
I
—
—
I
Open
Used for applying the LCD drive 1/3 bias voltage externally. Must be
41
connected to VLCD1 when a 1/2 bias drive scheme is used.
—
I
Open
38
Logic block power supply connection. Provide a voltage of between 4.5 and
6.0 V.
—
—
—
LCD driver block power supply connection. Provide a voltage of between
39
VDD – 0.5 and 6.0 V.
—
—
—
42
Power supply connection. Connect to ground.
—
—
—
No. 6860-7/26
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