SL20T0081 System Logic Semiconductor, SL20T0081 Datasheet - Page 40

• Manufacturer Part Number: SL20T0081
• Description: SLS System Logic Semiconductor
• Manufacturer: System Logic Semiconductor

SLS System Logic Semiconductor
Power Save (Compound Instruction)
status to reduce the power consumption to the static power consumption value. According to the status of static
indicator mode, power save is entered to one mode of sleep and standby mode. When Static Indicator mode is ON,
standby mode is issued. When OFF, sleep mode is issued. Power save mode is released by the entire display OFF
instruction.
Figure 16. Power Save (Compound Instruction)
- Sleep Mode
- Standby Mode
If the entire display ON/OFF instruction is issued during the display OFF state, SL20T0081 enters the Power Save
a. The oscillator circuit and LCD power supply circuit are halted.
b. All liquid crystal drive circuit are halted, and the segment in common drive outputs a VSS level.
a. The LCD power supply circuits are halted. The oscillator circuit continues to operate.
b. The duty drive system liquid crystal drive circuits are halted and the segment and common driver outputs a VSS
consumption current is reduced to a value near the static current. The internal modes are as follows :
operate, providing the minimum required consumption current for the static drive.
level.
enter sleep mode.
This stops all operations in the LCD display system, and as long as there are no access from the MPU, the
The duty LCD display system operation are halted and only the static drive system for the indicator continues to
The static drive system does not operate. When a reset command is performed while in standby mode, the system
Power Save OFF (Compound Instruction)
[All COM/SEG Outputs: VSS]
[Consumption Current:<2uA]
[Oscillator Circuit: OFF]
Release Sleep Mode
[Static Indicator ON]
Static Indicator OFF
[All segments OFF]
2 Bytes Command
Sleep Mode
Power Save (compound Indicator)
[All segments ON]
[Display OFF]
[LCD Power Supply Circuit: OFF]
[Consumption Current: <10uA]
[All COM/SEG Outputs: VSS]
Release Standby Mode
[Oscillator Circuit: OFF
[All segments OFF]
Static Indicator ON
Power Save OFF
Standby Mode
SL20T0081