Datasheet > BU97981GU-ZE2

BU97981GU-ZE2

更新时间： 2024-02-29 16:08:02

品牌	Logo	应用领域
罗姆 - ROHM		驱动接口集成电路
页数	文件大小	规格书
49页	1590K
描述
Liquid Crystal Driver,

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技术参数
数据手册

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BU97981GU-ZE2 技术参数

是否Rohs认证：	符合	生命周期：	Active
包装说明：	,	Reach Compliance Code：	compliant
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
Factory Lead Time：	16 weeks	风险等级：	1.66
接口集成电路类型：	LIQUID CRYSTAL DISPLAY DRIVER	峰值回流温度（摄氏度）：	NOT SPECIFIED
处于峰值回流温度下的最长时间：	NOT SPECIFIED	Base Number Matches：	1

BU97981GU-ZE2 数据手册

Datasheet

Multi-function LCD Segment Drivers

BU97981xxx Series MAX 196 Segments (SEG49xCOM4)

Features

Key Specifications



Integrated RAM for Display Data (DDRAM):

49 x4 Bit (Max 196 Segment)

LCD Drive Output:

4 Common Output, Max 49 Segment Output

Integrated 3ch LED Driver Circuit

Segment/ LED (Max 3port) Output Mode Selectable

Segment/ GPO (Max 31port) Output Mode

Selectable

Support PWM Generation from Ext. or Internal

Clock

(Resolution: 8bit Mode/12bit Mode Selectable)

Support Standby Mode

Integrated Power-on-Reset Circuit (POR)

Integrated Oscillator Circuit

No External Component

■

Supply Voltage Range:

LCD Drive Power Supply Range:

Operating Temperature Range:

Max Segments:

BU97981KV

BU97981MUV

BU97981GU

Max GPO Outputs:

BU97981KV

BU97981MUV

BU97981GU

Max LED Drive Outputs:

BU97981KV

+1.8V to +3.6V

+3.3V to +5.5V

-30°C to +75°C



196 Segments

168 Segments

196 Segments

■



31port

27port

31port



3port

BU97981MUV

BU97981GU

Low Power Consumption Design

Independent Power Supply for LCD Driving

Support Blink Function

■

Display Duty:

Bias:

Static. 1/3, 1/4 Selectable

Static, 1/3

Integrated Regulator for LCD Drive:

3.2, 3.3, 3.4, 4.4, 4.5, 4.6, 5.0V Selectable

Interface: 3wire Serial Interface

(Blink Frequency 1.6, 2.0, 2.6, 4.0Hz selectable)

■

Applications



Telephone



FAX



Portable Equipment (POS, ECR, PDA etc.)



DSC



DVC



Car audio



Home Electrical Appliance

Meter Equipment

etc.

Typical Application Circuit

BU97981KV LED/GPO using case

LED : 3port

GPO : 5port

LCD :164seg

VLED

*Reading resistor value

Please detect the value according to

inpu curremt value.

(cuurent MAX = 20mA)

VLCD

VDD

SEG48 (LED1)

SEG47 (LED2)

SEG46 (LED3)

Other

device

SEG45(GPO1) to

BU97981KV

SEG41(GPO5)

5.0V

3.3V

VSS1

VSS2

TEST1

SEG0 to SEG40

COM0 to COM3

SD INHbCLKIN

CSB SCL

LCD

＊CLKIN

Extenal CLK input terminal

In case being unused, connect to

VSS or be opened.

Input signal from cintroller

Figure 1. Typical Application Circuit

○Product structure：Silicon monolithic integrated circuit ○This product has no designed protection against radioactive rays.

www.rohm.com

TSZ02201-0A2A0D300110-1-2

10.Apr.2015 Rev.006

1/46

TSZ22111･14･001

12 3 4 5 6 7...49

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与BU97981GU-ZE2相关器件

型号	品牌	描述	获取价格	数据表
BU97981KV	ROHM	BU97981KV is a 1/4, 1/3duty or Static general-purpose LCD driver that can be used for cons	获取价格
BU97981MUV	ROHM	BU97981MUV is a 1/4, 1/3duty or Static general-purpose LCD driver that can be used for con	获取价格
BU97981MUV-E2	ROHM	Liquid Crystal Driver, 49-Segment, PQCC56,	获取价格
BU9798FV-E2	ROHM	Multifunction Segment Drivers	获取价格
BU9798GUW	ROHM	Silicon monolithic integrated circuits	获取价格
BU9798GUW-E2	ROHM	Multifunction Segment Drivers	获取价格

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