描述 Description

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 outputsApplicable Duty Ratios
? Various partial display
? Partial window moving & data scrollingGray-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 bitsColor 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) modeMicroprocessor 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 interfaceOn-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: 18VLCD 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=1/10Package Type
? Application for COG

特性 Features

Driver Output Circuits
? 396 segment outputs / 162 common outputsApplicable Duty Ratios
? Various partial display
? Partial window moving & data scrollingGray-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 bitsColor 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) modeMicroprocessor 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 interfaceOn-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: 18VLCD 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=1/10Package Type
? Application for COG?