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SL20T0081

System Logic Semiconductor
Part Number SL20T0081
Manufacturer System Logic Semiconductor
Description SLS System Logic Semiconductor
Published Apr 8, 2005
Detailed Description SLS System Logic Semiconductor SL20T0081 81 COMMON x 132 SEGMENT STN LCD DRIVER / CONTROLLER SL20T0081 SLS System Lo...
Datasheet PDF File SL20T0081 PDF File

SL20T0081
SL20T0081

Overview
SLS System Logic Semiconductor SL20T0081 81 COMMON x 132 SEGMENT STN LCD DRIVER / CONTROLLER SL20T0081 SLS System Logic Semiconductor SL20T0081 DEVICE SPECIFICATION OVERVIEW INTRODUCTION The SL20T0081 is a single-chip graphic dot-matrix liquid crystal display driver & controller that can be connected directly to a microprocessor bus.
8-bit parallel or serial display data sent from the microprocessor is stored in the internal display data RAM and the chip generates a liquid crystal drive signal independent of the micro-processor.
The SL20T0081 contains 81x132 bits of display data RAM and there is a 1-to-1 correspondence between the liquid crystal panel pixels and the internal RAM bits, and the device contains 81 common output circuits and 132 segment output circuits, so that a single chip can drive a 81x132 dot display (capable of displaying 8 columns x 5 rows of a 16 x 16 dot font).
Moreover, the capacity of the display can be extended through the use of master/ slave structures between chips.
The chips are able to minimize power consumption because no external operating clock is necessary for the display data RAM read/write operation.
Furthermore, because each chip is equipped internally with a low-power liquid crystal driver power supply, resistors for liquid crystal driver power voltage adjustment and a display clock RC oscillator circuit, the SL20T0081 Series chips can be used to create the lowest power display system with the fewest components for high performance portable systems.
FEATURES Direct display of RAM data through the display data RAM.
RAM capacity : 81x132 = 8580 bits Table 1.
Duty and Bias selection Duty 1/81 1/65 1/55 1/49 1/33 RAM bit data : LCD Driver Bias 1/10 or 1/8 1/9 or 1/7 1/8 or 1/6 1/8 or 1/6 1/6 or 1/5 “1” Non-illuminated “0” illuminated (during normal display) Maximum display matrix 81 x 132 65 x 132 55 x 132 49 x 132 33 x 132 High-speed 8-bit MPU interface The chip can be connected directly to the both the 80x86 series MPUs an...


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