HD66760 Datasheet, PDF (81/105 Pages) Hitachi Semiconductor – 104 X 80-dot Graphics LCD Controller/Driver for 256 Colors

HD66760
Sleep Mode
Setting the sleep mode bit (SLP) to 1 puts the HD66760 in the sleep mode, where the device stops all internal
display operations, thus reducing current consumption. Specifically, LCD operation is completely halted.
Here, all the SEG (SEG1 to SEG312) and COM (COM1 to COM80) pins output the GND level, resulting in
no display. If the AP1–0 bits in the power control register are set to 00 in the sleep mode, the LCD drive
power supply can be turned off, reducing the total current consumption of the LCD module.
Table 39 Comparison of Sleep Mode and Standby Mode
Function
LCD control
R-C oscillation circuit
Sleep Mode (SLP = 1)
Turned off
Operates normally
Standby Mode (STB = 1)
Turned off
Operation stopped