PI4ULS3V304AQPin Configuration UQFN (Top View) Pin DescriptionPin#Pin NameTypeDescription 1 VccA Power A-port supply voltage.0.9V ≤ VCCA ≤ 2.0V 2 A1 I/O Input/output A. Referenced to VCCA. 3 A2 I/O Input/output A. Referenced to VCCA 4 A3 I/O Input/output A. Referenced to VCCA. 5 A4 I/O Input/output A. Referenced to VCCA 6 GND GND Ground. 7 B4 I/O Input/output B. Referenced to VCCB 8 B3 I/O Input/output B. Referenced to VCCB 9 B2 I/O Input/output B. Referenced to VCCB 10 B1 I/O Input/output B. Referenced to VCCB 11 VccB Power B-port supply voltage.1.65V ≤ VCCB ≤ 3.6V 12 EN Input Output enable (active High). Pull EN low to place all outputs in 3-state mode. PI4ULS3V304AQ www.diodes.com November 2020 Document Number DS42920 Rev 2-2 2