ST7669中文資料矽創(chuàng)電子數(shù)據(jù)手冊PDF規(guī)格書

INTRODUCTION

The ST7669 is a driver & controller LSI for 262K color graphic dot-matrix liquid crystal display systems. It generates 396 Segment and 162 Common driver circuits. This chip is connected directly to a microprocessor, accepts Serial Peripheral Interface (SPI) or 8-bit/16-bit/18-bit parallel display data and stores in an on-chip display data RAM. 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 necessary to drive liquid crystal, it is possible to make a display system with the fewest components.

FEATURES

Driver Output Circuits

? 396 segment outputs / 162 common outputs

Applicable Duty Ratios

? Various partial display

? Partial window moving & data scrolling

Gray-Scale Display

? 4FRC & 31 PWM function circuit to display 64 gray-scale display

? Support 8 color mode (Idle mode)

On-chip Display Data RAM

? Capacity: 132 x 162 x 18 =384,912 bits

Color support by Inteface

? 256 color mode(RGB)=(332) mode (via LUT)

? 4K colors (RGB)=(444) mode (via LUT)

? 65K colors (RGB)=(565) mode

? 262K colors (RGB)=(666) mode

? Truncated 16M colors (RGB)=(888) mode

Microprocessor Interface

? 8/16/18-bit parallel bi-directional interface with 6800-series or 8080-series

? 3-line (9-bits) or 4-line( 8-bit) serial interface

On-chip Low Power Analog Circuit

? On-chip oscillator circuit

? Voltage converter (x1, x2, x3, x4, x5, x6, x7, x8) with internal booster capacitors.

? Extremely Few Outsider Compoment. (Required outsider components: Three Capacitors)

? On-chip Voltage Regulator

? On-chip electronic contrast control function

? Voltage follower(LCD bias: 1/5,1/7,1/9,1/10,/11,1/12, 1/13, 1/14)

Operating Voltage Range

? Supply Digital Voltage (VDD): 1.65 to 3.0V

? Supply Analog Voltage (VDD2, VDD3, VDD4, VDD5): 2.4 to 3.3V

? LCD driving voltage (VOP = V0 - VSS): Max: 18V

LCD Driving Voltage (OTP)

? Contrast Adjustment Value is stored in the Built-In OTP-ROM for better display quility.

LCD Driving setting suggestion

? Vop=16.52, Bias=1/10

Package Type

? Application for COG