s6b0724 Densitron Corporation, s6b0724 Datasheet - Page 49

• Manufacturer Part Number: s6b0724
• Description: 132 Seg / 65 Com Driver & Controller For Stn Lcd
• Manufacturer: Densitron Corporation

S6B0724
Power Save (Compound Instruction)
If the entire display ON / OFF instruction is issued during the display OFF state, S6B0724 enters the Power
Save 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.
This stops all operations in the LCD display system, and as long as there are no access from the MPU, the
consumption current is reduced to a value near the static current. The internal modes during sleep mode are
as follows:
The duty LCD display system operations are halted and only the static drive system for the indicator
continues to operate, providing the minimum required consumption current for the static drive.
The internal modes are in the following states during standby mode.
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. The oscillator circuit and the LCD power supply circuit are halted.
b. All liquid crystal drive circuits are halted, and the segment in common drive outputs output a V
Sleep Mode
Standby Mode
a V
When a reset command is performed while in standby mode, the system enters sleep mode.
Power Save OFF (Compound Instruction)
PRELIMINARY SPEC. VER. 1.1
SS
level. The static drive system does not operate.
[LCD Power Supply Circuit: OFF]
[All COM / SEG Outputs: VSS]
[Consumption Current: <2uA]
[Oscillator Circuit: OFF]
Release Sleep Mode
[Entire Display OFF]
Static Indicator OFF
[Static Indicator ON]
2 Bytes Command
Sleep Mode
Figure 27. Power Save (Compound Instruction)
Power Save (Compound Instruction)
[Entire Display ON]
[Display OFF]
132 SEG / 65 COM DRIVER & CONTROLLER FOR STN LCD
[LCD Power Supply Circuit: OFF]
[All COM / SEG Outputs: VSS]
[Consumption Current: <10uA]
Release Standby Mode
[Oscillator Circuit: ON]
[Entire Display OFF]
Static Indicator ON
Power Save OFF
Standby Mode
SS
level.
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