BU9910KV Ver la hoja de datos (PDF) - ROHM Semiconductor

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BU9910KV

Status display LCD driver for PCs with I2C Bus interface

ROHM Semiconductor 

Multimedia ICs

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.

2) Drive up to 44 LCD cells.

4 common × 11 segment, 1 / 3 bias, 1 / 4 duty

3) Blink operation for eaeh cell.

4) Support four frame frequencies

256Hz, 128Hz, 64Hz, 32Hz (at fOSC = 32.768kHz)

5) 20 direct drive inputs, which allow the application to

drive LCD directly without I2C control.

6) Minimum LCD drive time is guaranteed for direct in.

7) LCD device test ferminals.(LCDT0, LCDT1)

8)Power aupply voltages: 3.3V to 5.0V

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