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SSC5000Series
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Corresponding to Large Capacity LCD Panel
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PWM Method Gradation Display
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Wide Range of LCD Driving Voltage
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160-output Driver
PF526-04
SED1766
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DESCRIPTION
The SED1766 is an LCD driver for driving the segment side, gradations by the PWM (Pulse Width Modulation)
method. The SED1766 makes it possible to display gradations of dot matrix large liquid crystal panel, and is used
with the SED1703 as common driver.
The adoption of the PWM method and control of pulse position have brought flicker-free high definition gradation
display. Also, this driver has 160 LCD output terminals of high driving voltage. For example, the SED1766 can
drive a gradation displaying liquid crystal panel of 640
×
480 dots with the SED1703 at 7 drivers.
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FEATURES
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Liquid crystal display in 16 gradations
Gradation signal..................................................... 4 bits x 2
On-pulse positions can be set in 1H area, and pulse width modulations for centering and right justification can
be selected.
Gamma compensation suitable for liquid crystal characteristics is easy.
4 gradations and 8 gradation can correspond to each other.
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Number of LCD driving output terminals................... 160
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Operating frequency
Max. 12 MHz (When the enable automatic transfer facility is used)
One screen driving method can apply to 640 x 480 dots.
Max. 16 MHz (When the enable automatic transfer facility is not used)
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Range of liquid crystal driving voltage ...................... +14 to +40 V
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The inhibit function makes display blanking possible.
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Selectable output shift direction.
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The enable automatic transfer facility has realized cascade connection and power reduction. (Enable signals
need not be generated by controller.)
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The offset voltage of liquid crystal driving power supply can be adjusted for the V
DDH
and GND levels.
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Logic circle power supply.......................................... 5.0 V
±
10%
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Package :
Die form ............................................ SED1766D
0A
(Al pad)
............................................ SED1766D
0B
(Au bump)