● Outline
This is LCD segment driver for 126 to 140 segment type display. There is a lineup which is suitable for
multi function display and is integrated display RAM and power supply circuit for LCD driving with 4
common output type: BU9728AKV and BU9795AKV/FV/GUW.

BU9728AKV 128Segment (SEG32×COM4) Driver

● Feature (BU9728AKV)
1) 4wire serial interface (SCK, SD, C/D, CS)
2) Integrated RAM for display data (DDRAM) : 32 × 4bit (Max 128 Segment)
3) LCD driving port: 4 Common output, 32 Segment output
4) Display duty: 1/4 duty
5) Integrated Oscillator circuit (external resister type)
6) Integrated Power supply circuit for LCD driving (1/3 bias)
7) Low voltage / low power consumption design: +2.5～5.5V

● Uses (BU9728AKV)
DVC, Car audio, Telephone