ST7541 Datasheet - Sitronix Technology

ST7541 4 Gray Scale Dot Matrix LCD Controller/Driver

ST Sitronix ST7541 4 Gray Scale Dot Matrix LCD Controller/Driver INTRODUCTION ST7541 is a driver & controller LSI for 4-level gray scale graphic dot-matrix liquid crystal display systems. This chip can connect directly to a microprocessor which supports: Serial Peripheral Interface (SPI), IIC or 8-bit parallel interface. Display data stores in an on-chip display data RAM of 128 x 129 x 2 bits. It performs display data RAM read/write operation with no external operating clock to minimize pow.

ST7541 Features

* 4-level Gray Scale

* Display with PWM and FRC Methods DDRAM Data [2n:2n+1] 2n 2n + 1 0 0 0 1 1 0 1 1 (Accessible column address, n = 0~127) Driver Output Circuits 128 segment outputs / 128+1 common outputs Applicable Duty Ratios

* Various partial display

* Par

ST7541_SitronixTechnology.pdf