ST

Sitronix

ST7033

4 x 96 Dot Matrix LCD Controller/Driver

Ver 1.1

1/39

2009/07/17

1. INTRODUCTION

The ST7033 is a driver & controller LSI for graphic dot-matrix liquid crystal display systems. It contains 96 segment and 4

common driver circuits. This chip is connected directly to a microprocessor, accepts 3-line serial peripheral interface (SPI),

display data can stores in an on-chip display data RAM of 4 x 96 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

Single-chip LCD controller & driver

Driver Output Circuits

4 common outputs / 96 segment. Output

96 segment drivers : up to forty-eight 8-segment

numeric characters; up to twenty-five 15-segment

alphanumeric characters; or any graphics of up to

384 elements

On-chip Display Data Ram

Capacity: 4X96=384bits

Microprocessor Interface

Parallel MPU interface: 8-bit parallel 6800-series or

8080-series

Serial MPU interface: 4-line and 3-line SPI (serial

peripheral interfaces) are available.

On-chip Low Power Analog Circuit

Built-in Booster (x4 or x5) circuit generates LCD

supply voltage (external V0/XV0 voltage supply is

also supported).

Built-in high-accuracy Regulator.

Built-in voltage follower generates LCD bias voltages

Built-in Oscillator requires no external components

(external clock is also supported)

External RESB (reset) pin

Logic supply voltage range

VDD1-VSS: 1.65V~3.4V

VDD2-VSS: 2.5V~3.4V

Display supply voltage 4.0V

Temperature range: -30 to +80 degree