MSM6786GS-2K Ver la hoja de datos (PDF) - Oki Electric Industry

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MSM6786GS-2K

1/3, 1/4 DUTY LCD DRIVER WITH 4-DOT COMMON DRIVER AND 29-DOT SEGMENT DRIVER

Oki Electric Industry 

¡ Semiconductor

FEDL6786-03

MSM6786

RESET (Pin 46)

This is a reset signal input pin that intializes the IC, and is activated at "L" level. This pin has

an internal pull-up resistor. The power ON reset usually operates by externally connecting a

capacitor.

VDD

CRST

RESET

SEG1 – SEG29 (Pin 1-Pin 20, Pin 22-Pin 30)

These are the output pins for LCD, and are connected to the segment pins of the LCD panel. See

the section on data configuration for the relationship between SEG output and input data.

COM1 – COM4 (Pin 56-Pin53)

These are output pins for the LCD, and are connected to common pins of the LCD panel. When

1/3 duty is selected, COM4 pin should be left unconnected. See the section on data configuration

of common output and input data.

LED (Pin 47)

This is an output pin for the LED drive. The LED and current limiting resistor are externally

connected.

LED

3/4SEL (Pin 48)

This is a duty select input pin. When "H" level is input, 1/3 duty is selected and when "L" level

is input, 1/4 duty is selected.

TEST (Pin 52)

This is an input pin for IC testing. This pin should be connected to VSS.

VDD, VSS (Pin 21, 49, 51)

These are power voltage supply and ground pins.

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