Datasheet > ST7556

ST7556

更新时间： 2024-02-27 17:28:17

品牌	Logo	应用领域
矽创 - SITRONIX		驱动器控制器
页数	文件大小	规格书
43页	407K
描述
65 x 102 Dot Matrix LCD Controller/Driver

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ST7556 技术参数

生命周期：	Contact Manufacturer	Reach Compliance Code：	compliant
风险等级：	5.68	Base Number Matches：	1

ST7556 数据手册

Sitronix

ST7556

65 x 102 Dot Matrix LCD Controller/Driver

1. INTRODUCTION

The ST7556 is a driver & controller LSI for graphic dot-matrix liquid crystal display systems. It contains 102 segment

and 65 common with 1 ICOM driver circuits. This chip is connected directly to a microprocessor, accepts 4-line serial

interface (SPI) or 8-bit parallel interface, display data can store in an on-chip display data RAM of 66 x 102 bits. It

performs display data RAM read/write operation with no external operating clock to minimize power consumption. In

addition, because it contains power supply circuits to drive liquid crystal, it is possible to make a display system with the

fewest components.

2. FEATURES

Driver Output Circuits

(external clock also possible)

Voltage converter (x4)

102 segment outputs / 65+1 common outputs

On-chip Display Data ram

Voltage regulator (temperature gradient

-0.05%/°C)

Capacity: 66X102=6,732 bits

Microprocessor Interface

Voltage follower

8-bit parallel bi-directional interface with

On-chip electronic contrast control function (128

steps)

6800-series or 8080-series

4-line SPI (serial peripheral interface) available

(only write operation)

Liquid crystal driving voltage :

V0 -VSS = max 12 V (external power supply)

On-chip Low Power Analog Circuit

Generation of LCD supply voltage (externally

Vout voltage supply is possible)

External RESB (reset) pin

Logic supply voltage range V_DD-V_SS

Generation of intermediate LCD bias voltages

1.8 to 3.3V

Temperature range: -30 to +85 degree

Oscillator requires no external components

Ver 2.2

1/43

2005/10/05

12 3 4 5 6 7...43

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