ST7525

Sitronix ST7525 192 x 65 Dot Matrix LCD Controller/Driver 1. INTRODUCTION ST7525 is a driver & controller LSI for graphic dot-matrix liquid crystal display systems. It contains 192-segment and 64-common with 1-icon-common driver circuits. This chip is connected directly to a microprocessor which accepts parallel interface (8-bit), serial peripheral interface (4-line SPI), I2C interface. Display data stores in an on-chip display data RAM (DDRAM) of 192 x 65 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 192-segment / 64-common+1-icon-common On-chip Display Data RAM (DDRAM) Capacity: 192x65= 12,480 bits Microprocessor Interface 8-bit parallel bi-directional interface supports 6800-series or 8080-series MPU 4-line SPI I2C Interface Built-in Oscillation Circuit Oscillator requires no external component Programmable frame frequency External RST (hardware reset) Pin Various Display Functions Partial display Low Power Consumption Analog Circuit Voltage booster with internal capacitor (X6) Wide voltage regulator output range (4.78V~11.5V) Built-in temperature compensation circuit Voltage Gradient: -0.05%/°C Built-in voltage follower for LCD bias voltages: 1/6 ~ 1/9 Bias Wide Supply Voltage Ra...