LC75884E Datasheet, PDF (24/27 Pages) Sanyo Semicon Device – 1/4 Duty LCD Display Drivers with Key Input Function

Sample Application Circuit 4
1/3 bias (for use with large panels)
LC75884E, LC75884W
Note: *8. Add a capacitor to the logic block power supply line so that the logic block power supply voltage V_DD rise time when power is applied and the
logic block power supply voltage V_DD fall time when power drops are both at least 1 ms, as the LC75884E/W is reset by the VDET.
*9. If the RES pin is not used for system reset, it must be connected to the logic block power supply V_DD.
*10. The DO pin, being an open-drain output, requires a pull-up resistor. Select a resistance (between 1 to 10 kΩ) appropriate for the capacitance of
the external wiring so that signal waveforms are not degraded.
Notes on transferring display data from the controller
The display data (D1 to 220) is transferred to the LC75884E/W in four operations. All of the display data should be
transferred within 30 ms to maintain the quality of the displayed image.
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