NJU6538 View Datasheet(PDF) - Japan Radio Corporation

Part Name

Description

Manufacturer

NJU6538

1/8, 1/9, 1/10 Duty BITMAP LCD DRIVER with KEY SCAN

Japan Radio Corporation  

NJU6538

(d) Display data write

This instruction writes display data into the selected column address on the DDRAM.

The column address automatically increments (+1) whenever the display data is written by this

instruction, so that this instruction can be continuously issued without “column address set”

instruction.

A0 D7 D6 D5 D4 D3 D2 D1 D0

1*

Write data

*:Don’t Care

(e) ADC select

This instruction selects segment driver direction.

The correspondence between the column address and segment driver direction is shown in Fig.1.

Segment Driver Output order is inverse, when this instruction executes, therefore, the placement

NJU6538 against the LCD panel becomes easy.

A0 D7 D6 D5 D4 D3 D2 D1 D0

0 1 0 1 0 0 0 0D

D 0: Clokwise Output(Normal)

S1

1: Counterclockwise Output(Inverse) S65

→S65

→S1

(f) Inverse display ON / OFF

This instruction inverses the status of turn-on or turn-off of entire LCD pixels. It doesn’t change

the contents of the DDRAM.

A0 D7 D6 D5 D4 D3 D2 D1 D0

0 1 0 1 0 0 1 1D

D 0: Normal

1: Inverse

RAM data “1” correspond to “On”

RAM data “0” correspond to “On”

(g) Whole display ON

This instruction turns on entire LCD pixels regardless the contents of the DDRAM. It doesn’t

change the contents of DDRAM. This instruction executed prior to the “Normal or Inverse display

On/Off Set” Instruction.

A0 D7 D6 D5 D4 D3 D2 D1 D0

0 1 0 1 0 0 1 0D

D 0: Normal Display

1: Whole Display turns On

(Whole display OFF)

(Whole display ON)

-8-

Ver.2003-05-09

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