ST7632 Datasheet, PDF (1/96 Pages) Sitronix Technology Co., Ltd. – 4K Color Dot Matrix LCD Controller/Driver

ST
Sitronix
ST7632
1. INTRODUCTION
4K Color Dot Matrix LCD Controller/Driver
The ST7632 is a driver & controller LSI for 4K 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
On-chip Low Power Analog Circuit
Driver Output Circuits
− On-chip oscillator circuit
−396 segment outputs / 132 common outputs
− Voltage converter (x2, x3, x4, x5, x6, x7, x8)
Applicable Duty Ratios
− Voltage regulator
− Various partial display
− On-chip electronic contrast control function
− Partial window moving & data scrolling
− Voltage follower (LCD bias: 1/5 to 1/12)
On-chip Display Data RAM
Operating Voltage Range
− Capacity: 396 × 132 × 4 =209,088 bits
− 256 colors (RGB)=(332) mode
− Supply voltage (VDD, VDD1): 2.0 to 3.3V
(VDD2, VDD3, VDD4, VDD5): 2.6 to
−4K colors (RGB)=(444) mode
3.3V
−Dithered 65K colors (RGB)=(565) mode
V3 & V4 must large than VDD5
−Dithered 262K colors (RGB)=(666) mode
− LCD driving voltage (VLCD = V0 - VSS): 3.76 to 18.0 V
−Dithered 16M colors (RGB)=(888) mode
− Suggest Vop range=12V~14V,LCD bias=1/12.
Microprocessor Interface
LCD driving voltage (EEPROM)
− 8/16-bit parallel bi-directional interface with 6800-series
− To store contrast adjustment value for better display
or 8080-series
Package Type
− 4-line serial interface (4-line-SIF)
− Application for COG
− 3-line serial interface (3-line-SIF)
Par no.
ST7632
Equipment
Type
Internal
Power
Supply
Thermal Gradient
-0.125( +-10% )%/℃
ST7632 6800 , 8080 ,4-Line , 3-Line interface
Ver 1.7
1/96
2006/08/15