Description
The UL319 is a compact LED controller and driver that interface microprocessors to LED displays through a serial 4-wire interface.
Features
- LED driver with 24 outputs (16 segments/8 digits).
- Output pins connected directly to the LEDs.
- Key-scanning (8 x 4 matrix).
- 3-wire serial bus interface (CLK, STB, DI/O).
- 8-step dimming circuit to control the overall display
brightness.
- Inputs with Schmitt trigger give superior noise immunity.
- 5.0 V (± 10%) for VDD.
- Drives common-anode LED digits.
- Built-in power on reset circuits.
- Built-in pull-up resistor (CLK,STB,DOUT).
UL319-UTC.pdf
