ST7565V datasheet(49/72 Pages) SITRONIX

49 / 72 page

ST7565V

Ver 1.5b

49/72

2009/09/14

Sleep Mode (Double Byte Command)

This command is two byte command use as a pair with preceding command and following command, and both commands

must issued one after the other.

This stops all operations in the LCD display system, and as long as there are no accesses from the MPU, the consumption

current is reduced to a value near the static current. The internal modes during sleep mode are as follows:

1. The oscillator circuit and the LCD power supply circuit are halted.

2. All liquid crystal drive circuits are halted, and the segment in common drive outputs output a VDD level.

/RD

R/W

/WR

Status

Preceding Command

Sleep Mode

Normal Mode

Following Command

*Disable bit (Set “0”)

Done

Sleep Mode Set

Preceding Command Set

Following Command Set

Set Complete?

Figure 27

In the sleep mode, the MPU is still able to access the display data RAM.

Refer to figure 28 for sleep mode sequence.

Normal Mode

(Exit Sleep Mode)

Normal Mode

Sleep Mode

Sleep Mode Setting (Sleep Mode)

Display OFF

Display all points ON

Display all points OFF

Sleep Mode Setting (Normal Mode)

Figure 28

ST7565V Datasheet(PDF) 49 Page - Sitronix Technology Co., Ltd.