BU97950AFUV-E2

General Description

BU97950AFUV is a 1/8 or 1/4 duty general-purpose LCD 

driver that can be used for consumer / battery operated 

products and can drive up to 280 LCD Segments.

It has integrated display RAM for reducing CPU load. 

Also, it is designed with low power consumption and no 

external component needed. 

It can support LCD contrast adjustment by its EVR 

function.

Features

◼ Integrated RAM for Display Data (DDRAM):

35 x 8bit (Max 280 Segment)

◼ 1/8 or 1/4 Can be Selected with The Serial Control 

Data.

1/8 duty drive: Up to 280 segments

1/4 duty drive: Up to 156 segments

◼ Integrated Buffer AMP for LCD Driving 

◼ Integrated Oscillator Circuit

◼ No External Components

◼ Low Power Consumption Design

◼ Independent Power Supply for LCD Driving

◼ Integrated Electrical Volume Register (EVR) function

Applications

◼ Metering

◼ Home Automation Goods

◼ White Goods, Small Appliances

◼ Healthcare Products

◼ Battery Operated Products

etc.

Key Specifications

■ Supply Voltage Range: +2.5V to +6.0V

■ LCD Drive Power Supply Range: +2.5V to +6.0V

■ Operating Temperature Range: -40°C to +85°C

■ Max Segments: 280 Segments

■ Display Duty and Bias: 

1/4 Duty and 1/3 Bias,

1/8 Duty and 1/4 Bias selectable

■ Interface: 2wire serial interface