LC75824W 查看數據表（PDF） - SANYO -> Panasonic

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LC75824W

1/4 Duty General-Purpose LCD Display Driver

SANYO -> Panasonic 

Block Diagram

LC75824E, 75824W

Pin Functions

Pin

S1/P1 to S12/P12,

S13 to S51

COM1 to COM4

Pin No.

1 to 12,

13 to 51

52 to 55

Function

Segment outputs for displaying the display data transferred by serial data

input. Pins S1/P1 to S12/P12 can be used as general-purpose output ports

when so specified by the control data.

Common driver outputs.

The frame frequency fO is given by: fO = (fOSC/512) Hz.

Active

—

—

OSC

60

Oscillator connection. An oscillator circuit is formed by connecting an external

resistor and capacitor to this pin.

—

CE

62

H

Serial data transfer inputs.

CE: Chip enable

CL

63

These pins are connected to the CL: Synchronization clock

microcontroller.

DI: Transfer data

DI

64

—

Display off control input

• INH = low (VSS) .......Display forced off

Pins S1/P1 to S12/P12 = low (These pins are forced to

the segment output port

INH

61

function and held low.)

L

S13 to S51 = low

COM1 to COM4 = low

• INH = high (VDD)......Display on

Note that serial data transfers can be performed when the display is forced off.

VDD1

57

Used to apply the LCD drive 2/3 bias voltage. Short this pin to VDD2 if a

1/2-bias drive scheme is used.

—

VDD2

VDD

VSS

58

Used to apply the LCD drive 1/3 bias voltage. Short this pin to VDD1 if a

1/2-bias drive scheme is used.

—

56

Power supply. Provide a voltage of between 3.0 and 6.0 V.

—

59

Ground. Connect this pin to the system ground.

—

Handling when

I/O unused

O

Open

O

Open

I/O

GND

I

I

GND

I

I

GND

I

Open

I

Open

—

—

—

—

No.5252-5/17

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