ST7636R Datasheet, PDF (1/109 Pages) Sitronix Technology Co., Ltd. – 65K Color Dot Matrix LCD Controller/Driver

ST
Sitronix
ST7636R
1. INTRODUCTION
65K Color Dot Matrix LCD Controller/Driver
The ST7636R is a driver & controller LSI for 65K color graphic dot-matrix liquid crystal display systems. It generates 396
Segment and 132 Common driver circuits. This chip is connected directly to a microprocessor, accepts Serial Peripheral
Interface (SPI) or 8-bit/16-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.
2. FEATURES
Driver Output Circuits
♦ 396 segment outputs / 132 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.
On-chip Display Data RAM
♦ Capacity: 132 x 132 x 16 =278,784bits
♦ 4K colors (RGB)=(444) mode
♦ 65K colors (RGB)=(565) mode
♦ Truncated 262K colors (RGB)=(666) mode
♦ Truncated 16M colors (RGB)=(888) mode
Microprocessor Interface
♦ 8/16-bit parallel bi-directional interface with 6800-series
or 8080-series
♦ 4-line serial interface (4-line-SIF)
♦ 3-line serial interface (3-line-SIF)
On-chip Low Power Analog Circuit
♦ On-chip oscillator circuit
♦ Voltage converter (x2, x3, x4, x5, x6, x7, x8)
♦ Voltage regulator (temperature gradient -0.15%/ )
♦ On-chip electronic contrast control function (406 steps)
♦ Voltage follower (LCD bias: 1/5 to 1/12)
Operating Voltage Range
♦ Supply voltage (VDD, VDD1): 1.8 to 3.3V
(VDD2, VDD3, VDD4, VDD5): 2.4 to
3.3V
♦ LCD driving voltage (VOP = V0 - VSS): 3.76 to 18.0 V
♦ The suggested value of V0 is 12~15 V under bias =1/11
or 1/12
LCD Driving Voltage (EEPROM)
♦ To store contrast adjustment value for better display
♦ To store adjustment value for best crosstalk
performance
EEPROM Adjustment Voltage
♦ When writing value to EEPROM, VDD2~VDD5 must
follow as:
When Booster x6: VDD2~VDD5 =3.3V
When Booster x7: VDD2~VDD5 =2.8V~3.0V
and Booster:ON, Regulator: OFF, Follower: OFF,
Display OFF (refer EEPROM flow, page.43 , page.105)
Package Type
♦ Application for COG
ST7636R 6800 , 8080 ,4-Line , 3-Line interface
Ver 1.4
1/109
2006/09/06