S6B0717
55 COM / 100 SEG DRIVER & CONTROLLER FOR STN LCD
INTRODUCTION
The S6B0717 is a driver & controller LSI for graphic dot-matrix liquid crystal display systems. It contains 55 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 100 bits. It provides a high-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
− 55 common outputs / 100 segment outputs
On-chip Display Data RAM
− Capacity: 65 x 100 = 6,500 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
Duty ratio
1/55
1/34
Applicable LCD bias
1/8 or 1/6
1/6 or 1/5
Microprocessor Interface
− 8-bit parallel bi-directional interface with 6800-series or 8080-series
− Serial interface (only write operation) available
On-Chip Low Power Analog Circuit
− On-chip oscillator circuit
− Voltage converter (x2, x3, x4, x5)
− Voltage regulator (temperature coefficient: -0.05%/°C or external input)
− Voltage follower (LCD bias: 1/5, 1/6 or 1/8)
− Electronic contrast control function (64 steps)
Operating Voltage Range
− Supply voltage (VDD): 2.4 to 3.6 V
− LCD driving voltage (VLCD = V0 - VSS): 4.0 to 15.0 V
Wide Operating Temperature Range
− Ta = -40°C to 85 °C
Low Power Consumption
− 100 µΑ Max. (VDD = 3V, x4 boosting, V0 = 11V, internal power supply ON)
− 10 µΑ Max. (during power save [standby] mode)
Package Type
− Gold bumped chip or TCP
Maximum display area
55 × 100
34 × 100
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