BU9728 Ver la hoja de datos (PDF) - ROHM Semiconductor

Número de pieza

componentes Descripción

Fabricante

BU9728

For 128～ 140 Segment type LCD, LCD Segment Driver

ROHM Semiconductor 

● Command Description (BU9795AKV/AFV/AGUW)

D7 (MSB) is bit for command or data judgment.

Refer to Command and data transfer method.

C: 0: Next byte is RAM write data.

1: Next byte is command.

○ Mode Set (MODE SET)

MSB

LSB

D7 D6 D5 D4 D3 D2 D1 D0

C1

0

* P3 P2 *

* (*:Don’t care)

Set display ON and OFF

Setting

Display OFF (DISPOFF)

Display ON (DISPON)

P3 Reset initialize condition

0

○

1

Set bias level

Setting

1/3 Bias

1/2 Bias

P2 Reset initialize condition

0

○

1

○ Address set (ADSET)

MSB

LSB

D7 D6 D5 D4 D3 D2 D1 D0

C 0 0 P4 P3 P2 P1 P0

Address data is specified in P[4:0] and P2 (ICSET command) as follows.

Internal register

Bit of each command

MSB

Address [5]

ICSET [P2]

Address [4]

ADSET [P4]

・・・

・・・

LSB

Address [0]

ADSET [P0]

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