2099FV Datasheet, Rohm

1) LED can be driven directly. 2) Parallel output of a maximum of 24 bit 3) Operational on low voltage (2.7V to 5.5V) 4) Cascade connection is possible (BU2050F and BU209.

Serial-in-parallel-out driver incorporates a built-in shift register and a latch circuit to control a maximum of 24 LED by a 4-line interface, linked to a microcontroller. A single external resistor can set the output current value of the constant cu.