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KS0715 Datasheet(PDF) 4 Page - Samsung semiconductor |
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KS0715 Datasheet(HTML) 4 Page - Samsung semiconductor |
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4 / 60 page  KS0715 33 COM / 100 SEG DRIVER & CONTROLLER FOR STN LCD 1 INTRODUCTION The KS0715 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 Duty ratio Applicable LCD bias Maximum display area 1/33 1/5 or 1/6 33 × 100 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 µΑ Typ. (VDD = 3V, x4 boosting, V0 = 8V, internal power supply ON and display OFF) − 10 µΑ Max. (during power save [standby] mode) Wide Operating Temperature Range − Ta = -40°C to +85°C Package Type − Gold bumped chip or TCP |
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