HD66760 Datasheet, PDF (83/105 Pages) Hitachi Semiconductor – 104 X 80-dot Graphics LCD Controller/Driver for 256 Colors

HD66760
Power-on/off Sequence
To prevent pulse lighting of LCD screens at power-on/off, the power-on/off sequence is activated as shown
below. However, since the sequence depends on LCD materials to be used, confirm the conditions by using
your own system.
Power-on Sequence
Turn on power voltages Vcc and Vci, RESET = "Low"
Wait for 200 µs or longer (power-on time)
Wait for 5 ms or longer (oscillation stabilization time)
Issue LCD power instruction
Issue use-state instruction
Wait for 10-150 ms or longer
(op-amplifier output
stabilization time)
Turned on display: D1-0 = 11
Note: Depends on the external capacitance of V1OUT to V5OUT.
Figure 56 Power-on Sequence