INTRODUCTION
The S6B0728 is a driver and controller LSI for graphic dot-matrix liquid crystal display systems. It contains 128 common and 132 segment driver circuits. It is connected directly to a microprocessor, accepts serial or 8-bit parallel display data and stores in an on-chip display data RAM of 128 x 132 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 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.

FEATURES
Driver Output Circuits
- 128 common outputs / 132 segment outputs

Applicable Duty-ratios
- Various partial display
- Partial window moving & data scrolling

On-chip Display Data RAM
- Capacity: 128 x 132 = 16,896 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
- Serial interface(only write operation) with 4-pin or 3-pin SPI(Serial Peripheral Interface)

On-chip Low Power Analog Circuit
- On-chip oscillator circuit
- Voltage converter (x3, x4, x5, x6 or x7)
- Voltage regulator (temperature coefficient: -0.05%/°C or external input)
- On-chip electronic contrast control function (64 steps)
- Voltage follower (LCD bias: 1/5 to 1/12)

Operating Voltage Range
- Supply voltage (VDD): 2.4 to 3.6 [V]
- LCD driving voltage (VLCD = V0 - VSS): 4.0 to 17.0 [V]

Low Power Consumption
- TBD μA Typ. (VDD = 3V, x6 boosting, V0 = 15V, Internal power supply ON and display OFF)
- TBD μA Max. (during power save [standby] mode )

Package Type
- Gold bumped chip or TCP