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ST
ST7529
32 Gray Scale Dot Matrix LCD Controller/Driver
Sitronix
1. INTRODUCTION
The ST7529 is a...
www.DataSheet4U.com
ST
ST7529
32 Gray Scale Dot Matrix LCD Controller/Driver
Sitronix
1. INTRODUCTION
The ST7529 is a driver & controller LSI for 32 gray scale graphic dot-matrix liquid crystal display systems. It generates 255 Segment and 160 Common driver circuits. This chip is connected directly to a microprocessor, accepts Serial Peripheral Interface (SPI), 8-bit/16-bit parallel or IIC 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
−255 segment outputs / 160 common outputs −Maximum resolution is 255 x 160
On-chip Low Power Analog Circuit
− On-chip oscillator circuit − Voltage converter (x2, x3, x4, x5, x6, x7, x8) − Voltage
regulator − Voltage follower (LCD bias: 1/5, 1/7, 1/9, 1/10, 1/11, 1/12, 1/13, 1/14)
Applicable Duty Ratios
− Various partial display − Partial window moving & data scrolling
Microprocessor Interface
− 8/16-bit parallel bi-directional interface with 6800-series or 8080-series −4-line serial interface (write only) −9 bit 3-line serial interface (write only)
Operating Voltage Range
− Supply voltage (VDD, VDD1, VDD2, VDD3, VDD4, VDD5): 2.4 to 3.3V − LCD driving voltage (VLCD = V0 - VSS): 3.76 to 18.0V
Temperature Gradient Coefficient
−...