INTRODUCTION
The S6B0755 is a driver & controller LSI for graphic dot-matrix liquid crystal display systems. It contains 65 common and 128 segment driver circuits. This chip is connected directly to a microprocessor, accepts serial or 8-bit parallel display data and stores in an on-chip display data RAM of 65 x 128 bits. It provides a highly flexible display section due to 1-to-1 correspondence between on-chip display data RAM bits and LCD panel pixels. And it performs display data RAM read/write operation with no externally 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
     - 65 common outputs / 128 segment outputs
  Applicable Duty Ratios
     - Various partial display
     - Partial window moving & data scrolling
  On-chip Display Data RAM
     - Capacity: 65 x 128 = 8,320 bits
     - Bit data "1": a dot of display is illuminated.
     - Bit data "0": a dot of display is not illuminated.
  Microprocessor Interface
     - 8-bit parallel bi-directional interface with 6800-series or 8080-series.
     - SPI (Serial Peripheral Interface) available. (only write operation)
  On-chip Low Power Analog Circuit
     - On-chip oscillator circuit
     - Voltage converter (x3, x4 or x5)
     - Voltage regulator (temperature coefficient: -0.05%/°C or external input)
     - On-chip electronic contrast control function (64 steps)
     - Voltage follower (LCD bias: 1/4 to 1/9)
  Operating Voltage Range
     - Supply voltage (VDD): 1.8 to 3.3 V
     - LCD driving voltage (VLCD = V0 - VSS): 4.0 to 15.0 V
  Low power Consumption
     - 120 mA Typ. (Internal power supply on and display OFF)
  Package Type
     - Gold bumped chip or TCP