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Https://www.st.com/resource/en/datasheet/stm32g051f8.pdf#page=102 ST WLCSP-25, ST die ID 482, 4.2x3.95mm, 90 Ball, X-staggered 7x5 Layout, 0.4mm Pitch, YFF0006, NSMD pad definition Appendix A BGA 900 1 FF900 FFG900 FFV900 FF901 FFG901 FFV901 Artix-7, Kintex-7 and Zynq-7000 BGA, 22x22 grid, 19x19mm package, 0.8mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=262, NSMD pad definition Appendix A BGA 900 1 FB900 FBG900 FBV900 Kintex-7 and Zynq-7000 BGA, 26x26 grid, 27x27mm package, 1mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=280, NSMD pad definition Appendix A Virtex-7 BGA, 42x42 grid, 42.5x42.5mm package, 1mm.