ST7576 Datasheet, PDF (1/54 Pages) Sitronix Technology Co., Ltd. – 66 x 102 Dot Matrix LCD Controller/Driver

ST
Sitronix
ST7576
1. INTRODUCTION
66 x 102 Dot Matrix LCD Controller/Driver
The ST7576 is a driver & controller LSI for graphic dot-matrix liquid crystal display systems. It contains 102 segments
and 65 common with 1 ICON driver circuits. This chip is connected directly to a microprocessor, accepts 3-line or 4-line
serial peripheral interface (SPI), I²C interface or 8-bit parallel interface, display data can stores 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
Single-chip LCD controller & driver
- Generation of intermediate LCD bias voltages
Driver Output Circuits
- Oscillator requires no external components
102 segment / 65 common+1 ICON common (1/66 duty)
(external clock also possible)
102 segment / 16 common+1 ICON common (1/17 duty)
- Voltage converter X4; X5
(1/17 duty is under partial screen mode)
- Voltage follower
On-chip Display Data Ram
- On-chip electronic contrast control function (255
- Capacity: 66X102=6,732 bits
steps)
Microprocessor Interface
External RESB (reset) pin
- 8-bit parallel bi-directional interface with
Logic supply voltage range
6800-series or 8080-series
- VDD1 -VSS : 1.8 to 3.3V
- 4-line SPI (serial peripheral interface) available
- VDD2 -VSS : 2.4 to 3.3V
(only write operation)
Display supply voltage range (V0)
- 3-line SPI (serial peripheral interface) available
- I²C (Inter-Integrated Circuit) Interface
- Application Vop range: 4V-9.5V
- Programmable Max V0: 10.5V
On-chip Low Power Analog Circuit
Temperature range: -30 to +85 degree
- Generation of LCD supply voltage
ST7576
6800 , 8080 ,
4-Line , 3-Line interface
(without I²C interface)
ST7576i
I²C interface
Ver 1.0
1/54
2007/01/29