ST7549T 데이터 시트보기 (PDF) - Sitronix Technology Co., Ltd.

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ST7549T

68 x 102 Dot Matrix LCD Controller/Driver

Sitronix Technology Co., Ltd. 

ST7549T

Pin Name

V0, V1, V2, V3, V4

I/O

Power

Supply

Description

This is a multi-level power supply for the liquid crystal.

VOUTIN ≥V0 ≥V1≥V2≥V3≥V4≥VSS

VRS

Power

Supply

Monitor Voltage Regulator level, must be left open.

No. of Pins

5

1

Configuration Pins

Pin Name

CP

BR

Test Pin

Pin Name

T0~T11

I/O

Description

No. of Pins

Set Booster stages. (VSS=4X;VDD=5X)

I

CP pin set the default value of booster stages after reset , and booster

1

stage can be changed by software instruction

Set LCD bias ratio. (VSS=1/7;VDD=1/9)

I

BR pin set the default value of bias ratio after reset , and bias ratio can

1

be changed by software instruction

I/O

Description

T0~T7 must floating

T

T8.T9.T10 must connect to VDD

T11 must connect to VSS

No. of Pins

10

ST7549T I/O PIN ITO Resister Limitation

PIN Name

PS[2:0],OSC,CP,BR,T8~T11

T0~T7,VRS, V1 , V2 , V3 , V4

VDD1 , VDD2 , VSS , VOUTIN , VOUTOUT ; D1~D3 (if I2C mode)

V0

A0,/WR,/RD,CSB, D0 …D7

RESB

ITO Resister

No Limitation

Floating

<100Ω

<500Ω

<1KΩ

<10KΩ

Ver 1.3

11/52

2005/12/06

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