ST7578 Datasheet, PDF (1/52 Pages) Sitronix Technology Co., Ltd. – 66 x 102 Dot Matrix LCD Controller/Driver

Sitronix
ST7578
66 x 102 Dot Matrix LCD Controller/Driver
1. INTRODUCTION
ST7578 is a driver & controller LSI for graphic dot-matrix liquid crystal display systems. It contains 102-segment and
65-common with 1-icon-common driver circuits. This chip is connected directly to a microprocessor which accepts 3-line
or 4-line serial peripheral interface (SPI), I²C interface or 8-bit parallel interface. Display data stores in an on-chip display
data RAM (DDRAM) 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
Driver Output Circuits
102-segment / 65-common+1-icon-common (1/66 duty)
On-chip Display Data Ram
- Capacity: 66X102= 6,732 bits
Microprocessor Interface
- 8-bit parallel bi-directional interface supports
6800-series or 8080-series MPU
- 3-line & 4-line SPI (serial peripheral interface) are
available (write only)
External RESB (reset) pin
Built-in oscillation circuit
- Oscillator requires no external component
Low Power Consumption Analog Circuit
- Voltage booster (X4, X5)
- Voltage regulator generates LCD operating voltage
(Temperature Gradient: -0.11%/°C)
- Electronic contrast control (255 steps)
- Voltage follower generates LCD bias voltages
(1/4 ~ 1/11 bias)
Wide supply voltage range
- VDD1 – VSS1 : 1.8 ~ 3.3V
- VDD2 - VSS2 : 2.4 ~ 3.3V
Display supply voltage range
- Application Vop range : 4V ~ 9.5V
- Programmable voltage (Vop) : 10.56V (max)
Temperature range: -30 to +85 ^°C
Support LCD Module Size up to 1.8”
ST7578
Ver 1.2
6800 , 8080 , 4-Line , 3-Line interface
1/52
2007/04/30