BU9910KV Datasheet, PDF (1/15 Pages) Rohm – Status display LCD driver for PCs with I2C Bus interface

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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