Low Duty LCD Segment Drivers - BU9794AKV | ROHM Semiconductor - ROHM Co., Ltd.
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Low Duty LCD Segment Drivers - BU9794AKV
BU9794AKV is a 1/4 duty general-purpose LCD driver that can be used for consumer / battery operated products and can drive up to 200 LCD Segments.It has integrated display RAM for reducing CPU load. Also, it is designed with low power consumption and no external component needed.
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Specifications:
Grade
Consumer
Segment Element
200
Duty
1/4
Bias
1/3, 1/2
Elements of MUX 1:4
200
Interface [line serial]
3wire
Interface Voltage (Min.)[V]
2.5
Interface Voltage (Max.)[V]
5.5
Power Supply for LCD (Min.)[V]
2.5
Power Supply for LCD (Max.)[V]
5.5
LCD Driving Waveform
Line/Frame
Operating Temperature (Min.)[°C]
-40
Operating Temperature (Max.)[°C]
85
Features:
- 1/4duty driving: Max 200 segments
- Integrated display data RAM: 50 x 4bit
- 1/3 or 1/2 bias setting selectable
- Power supply for Interface: 2.5V to 5.5V
- Power supply for LCD: 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
- Support INHb terminal to control Display ON/OFF
- Integrated power on reset circuit
- No external components required
- Low power consumption design