ST7565P datasheet(52/71 Pages) SITRONIX

52 / 71 page

ST7565P

Ver 2.1b

52/71

2009/09/14

D D

RIIP

TIIO

Instruction Setup: Reference

(1) Initialization

Note: With this IC, when the power is applied, LCD driving non-selective potentials V2 and V3 (SEG pin) and V1 and V4 (COM

pin) are output through the LCD driving output pins SEG and COM. When electric charge is remaining in the smoothing

capacitor connecting between the LCD driving voltage output pins (V0 ~ V4) and the VSS pin, the picture on the display may

become totally dark instantaneously when the power is turned on. To avoid occurrence of such a failure, we recommend the

following flow when turning on the power.

1. When the built-in power is being used immediately after turning on the power:

* The target time of 5ms will result to vary depending on the panel characteristics and the capacitance of the smoothing

capacitor. Therefore, we suggest you to conduct an operation check using the actual equipment.

Notes: Refer to respective sections or paragraphs listed below.

*1: Description of functions; Resetting circuit

*2: Command description; LCD bias setting

*3: Command description; ADC selection

*4: Command description; Common output state selection

*5: Description of functions; Power circuit & Command description; Setting the built-in resistance radio for regulation of

the V0 voltage

*6: Description of functions; Power circuit & Command description; Electronic volume control

*7: Description of functions; Power circuit & Command description; Power control setting

ST7565P Datasheet(PDF) 52 Page - Sitronix Technology Co., Ltd.