PI4ULS5V108QPin DescriptionPin NamePin No.Description GND 1 Ground. VREFA 2 Reference supply voltage A An 3-10 Data port A Bn 18-11 Data port B VREFB 19 Reference supply voltage B EN 20 Enable. Connect to VREFB and pull-up through a 200k Ω resistor Block DiagramFigure 3: Block Diagram PI4ULS5V108Q www.diodes.com May 2019 Document Number DS41647 Rev 2-2 2