INTRODUCTION
The S6B0723 is a single-chip driver & controller LSI for graphic dot-matrix liquid crystal display systems. This chip can be connected directly to a microprocessor, accepts serial or 8-bit parallel display data from the microprocessor, stores the display data in an on-chip display data RAM of 65 x 132 bits and generates a liquid crystal display drive signal independent of the microprocessor. It provides a high-flexible display section due to 1-to-1 correspondence between on-chip display data RAM bits and LCD panel pixels. It contains 65 common driver circuits and 132 segment driver circuits, so that a single chip can drive a 65 x 132 dot display. And the capacity of the display can be increased through the use of master/slave multi-chip structures. This chip is able to minimize power consumption because it performs display data RAM read/write operation with no external operation clock. In addition, because it contains power supply circuits necessary to drive liquid crystal, which is a display clock oscillator circuit, high performance voltage converter circuit, high-accuracy voltage regulator circuit, low power consumption voltage divider resistors and OP-Amp for liquid crystal driver power voltage, it is possible to make the lowest power consumption display system with the fewest components for high performance portable systems.

FEATURES
Display Driver Output Circuits
- 65 common outputs / 132 segment outputs

On-chip Display Data RAM
- Capacity: 65 x 132 = 8,580 bits
- RAM bit data “1”: a dot of display is illuminated.
- RAM bit data “0”: a dot of display is not illuminated.

Applicable Duty Ratios

Microprocessor Interface
- High-speed 8-bit parallel bi-directional interface with 6800-series or 8080-series
- Serial interface (only write operation) available

Various Function Set
- Display ON / OFF, set initial display line, set page address, set column address, read status, write / read display data, select segment driver output, reverse display ON / OFF, entire display ON / OFF, select LCD bias, set/reset modify-read, select common driver output, control display power circuit, select internal regulator resistor ratio for V0 voltage regulation, electronic volume, set static indicator state.
- H/W and S/W reset available
- Static drive circuit equipped internally for indicators with 4 flashing modes

Built-in Analog Circuit
- On-chip oscillator circuit for display clock (external clock can also be used)
- High performance voltage converter (with booster ratios of x2, x3, x4 and x5, where the step-up reference voltage can be used externally)
- High accuracy voltage regulator (temperature coefficient: -0.05%/°C or external input)
- Electronic contrast control function (64 steps)
- Vref = 2.1V ± 3% (V0 voltage adjustment voltage)
- High performance voltage follower (V1 to V4 voltage divider resistors and OP-Amp for increasing drive capacity)

Operating Voltage Range
- Supply voltage (VDD): 2.4 to 3.6V
- LCD driving voltage (VLCD = V0 - VSS): 4.5 to 15.0V

Low Power Consumption
- Operating power: 40mA typical (conditions: VDD = 3V, x 4 boosting (VCI = VDD), V0 = 11V, Internal power supply ON, display OFF and normal mode is selected)
- Standby power: 10 mA maximum (during power save[standby] mode)

Operating Temperatures
- Wide range of operating temperatures : -40 to 85°C

CMOS Process
Package Type
- TCP