ROHM BU9910KV Data Sheet
Summary
This integrated LCD driver, BU9910KV, is designed for complex PC and multimedia display systems. It manages up to 44 LCD cells using a flexible I²C bus interface and provides 20 direct drive inputs for simple system configuration. The accompanying manual details comprehensive technical specifications, including pin mappings, various operating modes, power supply requirements (3.3V to 5.5V), and detailed timing diagrams necessary for integration into custom electro-optical applications.
Page 1 Text Content
Multimedia ICs 查询BU9910KV供应商
Status display LCD driver for PCs with I2C Bus interface BU9910KV The BU9910KV is a status LCD driver with I2C Bus intetface. Various lighting mode can be controlled through I2C Bus. In addition, 20 direct drive inputs allow the application to drive 20 elements directly without I2C Bus, so that the system configuration can be kept simple.
•Applications PCs
•Features 1) I2C Bus interface. 5) 20 direct drive inputs, which allow the application to 2) Drive up to 44 LCD cells. drive LCD directly without I2C control. 4 common × 11 segment, 1 / 3 bias, 1 / 4 duty 6) Minimum LCD drive time is guaranteed for direct in. 3) Blink operation for eaeh cell. 7) LCD device test ferminals.(LCDT0, LCDT1) 4) Support four frame frequencies 8)Power aupply voltages: 3.3V to 5.0V
256Hz, 128Hz, 64Hz, 32Hz (at f OSC = 32.768k Hz)
Page Summary Contents For ROHM BU9910KV Data Sheet
Manual Details
| Brand | ROHM |
|---|---|
| Pages | 15 |
| File Size | 90.83 KB |
| Published | July 22, 2026 |
Enter the captcha to get the download link:
Frequently Asked Questions
What is the operating voltage range for this IC?
The recommended supply voltage (VDD) is from 3.0V to 5.5V.
How many direct drive inputs are available?
There are 20 direct drive inputs, allowing direct driving without using the I²C Bus.
What specific clock frequency is designed for this IC?
The CLK input expects a clock frequency of 32.768kHz.
Which pins handle the LCD segment driver outputs and common drivers?
The SEG0-SEG10 pins handle segment outputs, while COM0-COM3 pins manage the common drive outputs.