ST7921 Ver la hoja de datos (PDF) - Sitronix Technology Co., Ltd.

Número de pieza

componentes Descripción

Fabricante

ST7921

96CH Segment Driver For Dot Matrix LCD

Sitronix Technology Co., Ltd. 

ST7921

Pin Description :

Pin Name

VDD

VSS

Purpose

POWER

GROUND

V0

V2

LCD Power

V3

S1-S48

SHL1

segment

direction

DL1, DR1

data in /out

S49-S96

SHL2

segment

direction

DL2, DR2

data in/out

M

alternation

CL1

latch clock

CL2

shift clock

Description

I/O

for logic

N/A

for logic

N/A

for LCD driving voltage

I

LCD driver output for part 1

O

direction control for part 1 segments

I

If SHL1 = 1 then DL1=out, DR1=in

If SHL1 = 0 then DL1=in, DR1=out

I/O

LCD driver output for part 2

O

direction control for part 2 segments

I

If SHL2 = 1 then DL2=out, DR2=in

If SHL2 = 0 then DL2=in, DR2=out

I/O

Alternate the LCD driving waveform

I

latch the data after shift is completed

I

shift the data into the segments

I

Ver 1.6

3/11

2005/05/24

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