INTRODUCTION

The S6B0715 is a driver & controller LSI for graphic dot-matrix liquid crystal display systems. It contains 33 common and 100 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 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

- 33 common outputs / 100 segment outputs

On-chip Display Data RAM

- Capacity: 65 x 132 = 8,580 bits

- Bit data 1: a dot of display is illuminated.

- Bit data 0: a dot of display is not illuminated.

Multi-chip Operation (Master, Slave) Available

Applicable Duty Ratios

Microprocessor Interface

- 8-bit parallel bi-directional interface with 6800-series or 8080-series

- Serial interface (only write operation) available

Various Instruction Setting

On-chip Low Power Analog Circuit

- On-chip oscillator circuit

- Voltage converter (x2, x3 and x4)

- Voltage regulator (temperature coefficient: -0.05/°C, -0.2/°C)

- On-chip electronic contrast control function (32 steps)

- Voltage follower (LCD bias: 1/5 or 1/6)

Operating Voltage Range

- Supply voltage (VDD): 2.4 to 3.6 V

- LCD driving voltage (VLCD = V0 - VSS): 4.0 to 15.0 V

Low Power Consumption

- 100 mA Typ. (VDD = 3V, x4 boosting, V0 = 8V, internal power supply ON and display OFF)

- 10 mA Max. (during power save [standby] mode)

Wide Operating Temperature Range

- Ta = -40°C to +85°C

Package Type

- Gold bumped chip or TCP