Low Duty LCD Segment Driver - BU9795BGUW (New)

BU9795BGUW is a 1/4 duty general-purpose LCD driver that can be used for consumer / battery operated products and can drive up to 124 LCD Segments. It has integrated display RAM for reducing CPU load. Also, it is designed with low power consumption and no external component needed. Its small BGA package is well-suited for small footprint applications.

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* This product is a STANDARD grade product and not recommend for on-vehicle devices.
Part number
Unit Quantity
Minimum Package Quantity
Packing Type
Constitution Materials List
BU9795BGUW-ZE2 Active VBGA049W040A 2500 2500 Taping inquiry Yes
Grade Consumer
Segment Element 124
Duty 1/4
Bias 1/3, 1/2
Elements of MUX 1:4 124
Interface [line serial] 3wire
Interface Voltage (Min.)[V] 2.5
Interface Voltage (Max.)[V] 5.5
LCD Driving Waveform Line/Frame
Operating Temperature (Min.)[°C] -40
Operating Temperature (Max.)[°C] 85
    • 1/4duty driving: Max 124 segments
    • Integrated display data RAM: 35 x 4bit
    • 1/3 or 1/2 bias setting selectable
    • Support wide range of operation voltage from 2.5V to 5.5V
    • Integrated LCD voltage driving circuit
    • Integrated oscillation circuit for LCD frame frequency
    • Line or Frame inversion driving selectable
    • Support 3 wire serial interface
    • Integrated power on reset circuit
    • No external components required
    • Low power consumption design
    • Small BGA package
ROHM Semiconductor reserves the right to change the specifications at any time.
Technical Data
Application Note

Thermal Resistance