hd66766r Renesas Electronics Corporation., hd66766r Datasheet - Page 64

• Manufacturer Part Number: hd66766r
• Description: 132 X 176-dot Graphics Lcd Controller/driver For 65k Colors - Hitachi Semiconductor
• Manufacturer: Renesas Electronics Corporation.

more than 50ms (set-up circuit
1, 2 stabilization time)
more than 200ms (set-up circuit
2 / voltage inverting circuit
stabilization time)
more than 10ms (oscillation
circuit stabilization time)
HD66766R
Setting flow for power supply and display instruction
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.
1ms
Figure 46 Power-on Sequence
Issue other mode setting
instruction (3)
Power on the Reset
Power On sequence
Issue use-state
instruction (2)
Power on the Vcc
Issue use-state
instruction (1)
Display on
Sequence
Display on
Note)
Bits for display on
D1-0="11"
Power on Initialized bits
voltage polarity inverting circuit
operation starting bit
Set : BT3-1 = "1"
Set BS3-0 bit
Set VR2-0 bit
Set CT6-0 bit
Set VC2-0 bit
Set BT2-0 bit
Set DC2-0 bit
Set AP1-0 bit
64
Rev. 1.0-1 / September 2002
Figure 47 Power-off Sequence
use-state instruction
Power Off sequence
Normal display
Power off the Vcc
Display off
sequence
Display off
Bits for display off
D1-0="00"
Power supply circuit off
control set by AP1-0
Power off setting bit