hd66740 Renesas Electronics Corporation., hd66740 Datasheet - Page 92

• Manufacturer Part Number: hd66740
• Description: 112 X 80-dot Graphics Lcd Controller/driver - Hitachi Semiconductor
• Manufacturer: Renesas Electronics Corporation.

HD66740
Power-off Sequence
Power voltage: Vcc
Driver SEG/
COM output
Note: When hardware reset is input during the power-off period, the D bit is
cleared to 0 and SEG/COM output is forcibly lowered to the GND level.
RESET
V1OUT
GND
GND
GND
Vcc
Vcc
Turn off power voltages Vcc and Vci
Figure 54
Figure 55
Issue LCD power instruction
To the power-on sequence
Turn off display: D = 0
RESET is input as soon as possible.
Power is turned off.
Power-off Sequence
Power-off Timing
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