Nuvoton's KA32183A controls 4x4 LED arrays
4 × 4 LED Matrix Driver (Total LED that can be driven = 16)
LED Selectable Maximum Current
LED Music Synchronizing Function
I2C interface (Standard Mode, Fast Mode and Fast Mode Plus) (4 Slave address selectable)
16 pin Plastic Quad Flat Non-leaded Package (QFN Type)