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WLCSP-52, ST die ID 469, 4.02x4.27mm, 81 Ball, 9x9 Layout, 0.5mm Pitch, https://www.st.com/resource/en/datasheet/stm32wb55vc.pdf Texas Instruments DSBGA BGA YZP R-XBGA-N8 Texas Instruments, DSBGA, area grid, YZR pad definition Appendix A BGA 1156 1 FF1156 FFG1156 FFV1156 Virtex-7 BGA, 44x44 grid, 45x45mm package, 1mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=292, https://www.xilinx.com/support/documentation/user_guides/ug865-Zynq-7000-Pkg-Pinout.pdf#page=88, NSMD pad definition Appendix A Kintex-7 BGA, 30x30 grid, 31x31mm.

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