ST
Sitronix
ST7033
4 x 96 Dot Matrix LCD Controller/Driver
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
supply voltage (external V0/XV0 voltage supply is
Single-chip LCD controller & driver
Driver Output Circuits
also supported).
4 common outputs / 96 segment. Output
Built-in high-accuracy Regulator.
96 segment drivers : up to forty-eight 8-segment
Built-in voltage follower generates LCD bias voltages
numeric characters; up to twenty-five 15-segment
Built-in Oscillator requires no external components
(external clock is also supported)
alphanumeric characters; or any graphics of up to
External RESB (reset) pin
384 elements
On-chip Display Data Ram
Logic supply voltage range
VDD1-VSS: 1.8V~3.3V
Capacity: 4X96=384bits
VDD2-VSS: 2.5V~3.3V
Microprocessor Interface
Parallel MPU interface: 8-bit parallel 6800-series or
Display supply voltage 4.0V
8080-series
Temperature range: -30 to +80 degree
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
Ver 1.0
1/39
2008/05/29
