UL318 Overview
The UL318 is a pact LED controller and driver that interface microprocessors to LED displays through a serial 3-wire interface. It drives LED connected in mon anode configuration. The UL318 drives up to LEDs in 10 segment/7 digit~13 segment/4 digit configuration while functioning from a supply voltage of 5.0V.
UL318 Key Features
- LED driver with 17 outputs (10 segments/7 digits~13 segments/4 digits)
- Output pins connected directly to the LEDs
- Key-scanning (10 x 2 matrix)
- 3-wire serial bus interface (CLK, STB, DIO)
- 8-step dimming circuit to control the overall display
- ORDERING INFORMATION
- 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