LC75808W(2010) View Datasheet(PDF) - SANYO -> Panasonic

Part Name

Description

Manufacturer

LC75808W
(Rev.:2010)

1/8 to 1/10 Duty LCD Display Driver with Key Input Function

SANYO -> Panasonic 

LC75808W

Sample Application Circuit 2

1/8 duty, 1/4 bias drive technique (for use with large panels)

+5V

*6

+8V

R

R

R

C C CR

C≥0.047μF

10kΩ≥R≥2.2kΩ

From the controller

To the controller

To the controller

power supply

*9

VDD

TEST

VSS

VLCD

VLCD0

VLCD1

VLCD2

VLCD3

VLCD4 *7

OSC

COM1

COM2

COM3

COM4

COM5

COM6

COM7

COM8

COM9

COM10

S1

S2

S3

S4

S5

S6

S7

S8

S9

S10

S56

S57

S58

INH * 8

S59

CE

S60

CL

DI

P1

DO K K K K K K K K K K K

I I I I I SSSSSS

54321 654321

P2

P3

P4

LCD panel

OPEN

OPEN

general-purpose output ports

Used with the backlight

controller or other circuit.

Key matrix

(up to 30 keys)

A12923

Note: *6. Add a capacitor to the logic block power supply line so that the logic block power supply voltage VDD rise

time when power is applied and the logic block power supply voltage VDD fall time when power drops are

both at least 1ms, as the LC75808W is reset by the VDET.

*7. If a variable resistor is not used for display contrast fine adjustment, the VLCD4 pin must be connected to

ground.

*8. If the function of the INH pin is not used, the INH pin must be connected to the logic block power supply

VDD.

*9. The DO pin, being an open-drain output, requires a pull-up resistor. Select a resistance (between 1kΩ to

10kΩ) appropriate for the capacitance of the external wiring so that signal waveforms are not degraded.

No.6370-31/38

Share Link: