UL319 Overview
The UL319 is a pact LED controller and driver that interface microprocessors to LED displays through a serial 4-wire interface. It drives LED connected in mon anode configuration. The UL319 drives up to 128 discrete LEDs in 16 segment/8 digit configuration while functioning from a supply voltage of 5.0V.
UL319 Key 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
- Inputs with Schmitt trigger give superior noise immunity
- 5.0 V (± 10%) for VDD
- Drives mon-anode LED digits
- Built-in power on reset circuits
- Built-in pull-up resistor (CLK,STB,DOUT)