ST7687S Datasheet, PDF (9/195 Pages) Sitronix Technology Co., Ltd. – 128RGB x 128 dot 65K Color with Frame Memory Single-Chip CSTN Controller/Driver

2. FEATURES
Driver Output Circuits
♦ 384 segment outputs / 128 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: 128 x 128 x 16 =262,144 bits
Color support by Interface
♦ 4k colors (RGB)=(444) mode
♦ 65K colors (RGB)=(565) mode
Microprocessor Interface
♦ 8 bit parallel bi-directional interface with 6800-series or
8080-series
♦ 4-line serial interface
♦ 3-line (9-bits) serial interface
ST7687S
On-chip Low Power Analog Circuit
♦ On-chip oscillator circuit
♦ Voltage converter (x2~x8) with internal capacitors.
♦ Extremely Few Outsider Components.
♦ On-chip Voltage Regulator
♦ On-chip electronic contrast control function
♦ Voltage follower (LCD bias: 1/6~1/12)
Operating Voltage Range
♦ Supply Digital Voltage (VDD): 1.65 to 3.3V
♦ Supply Analog Voltage (VDD2~VDD5): 2.4 to 3.3V
♦ LCD driving voltage (VOP = V0 - VSS): Max: 18V
LCD Driving Voltage
♦ Contrast Adjustment Value is stored in the Built-In
EEPROM for better display quality.
LCD Driving setting suggestion
♦ VOP = 14V, BIAS=1/9. (VDD=2.8V)
Package Type
♦ Application for COG
Ver1.4
9/195
2009/10