Datasheet > BU9750FUV-E2

BU9750FUV-E2

更新时间： 2022-03-30 09:37:28

品牌	Logo	应用领域
罗姆 - ROHM		驱动器
页数	文件大小	规格书
15页	406K
描述
Standard Segment Drivers

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数据手册

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BU9750FUV-E2 数据手册

Technical Note

BU9795AKV,BU9795AFV,BU9795AGUW,BU9794AKV,BU97950FUV

●Block Diagram

●Pin Arrangement

COM0……COM3

SEG2……SEG32

VDD

LCD voltage generator

(NC)

SEG13 SEG15 SEG18 SEG20 SEG22

(NC)

common

driver

Segment

driver

SEG11 SEG12 SEG16 SEG17 SEG21 SEG23 SEG24

＋

－

LCD

BIAS

SELECTOR

SEG9

SEG7

SEG4

SEG10 SEG14 SEG19 SEG25 SEG27 SEG26

common

counter

blink timing

generator

＋

－

DDRAM

SEG6

SEG3

INHb

SEG8

SEG2

SEG5

CSB

VSS

SEG30 SEG28 SEG29

COM3 SEG32 SEG31

VLCD

INHb

Command

Data Decoder

Command

OSCIN

OSCILLATOR

VDD

COM1

COM2

COM0

(NC)

Power On Reset

serial inter face

(NC)

TEST2

SCL

OSCIN VLCD

IF FILTER

VSS

TEST

CSB

SCL

Fig.8 Block Diagram (BU9795AGUW)

Fig.9 Pin Arrangement (BU9795AGUW)

●Terminal Description

Terminal

INHb

I/O

Function

Input terminal for turn off display

H: turn on display

L: turn off display

Test input (ROHM use only)

Must be connect to VSS

TEST

External clock input

Ex clock and Int clock can be changed by command.

OSCIN

Must be connect to VSS when use internal oscillation circuit.

serial data input

SCL

serial data transfer clock

CSB

Chip select

GND

“L” active

VSS

VDD

Power supply

VLCD

SEG2-32

COM0-3

Power supply for LCD driving

SEGMENT output for LCD driving

COMMON output for LCD driving

(Caution) About terminal number, please refer to above pin arrangement

www.rohm.com

2011.03 - Rev.A

8/14

1...5 6 789 10 11...15

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