Package V/W/U/XQFN4*4-20 Option1 Option2 Footprint Dimension (mm) Number of Pin P Ax Ay Bx By C D 20 0.50 4.80 4.80 3.10 3.10 0.85 0.30 Tolerance Sx Sy 2.60 2.60 2.20 2.20 ±0.05