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WLCSP-36, ST die ID 495, 4.4x4.38mm, 100 Ball, 10x10 Layout, 0.4mm Pitch, https://www.st.com/resource/en/datasheet/stm32g031y8.pdf ST WLCSP-20, ST die ID 456, 1.94x2.4mm, 20 Ball, 4x5 Layout, 0.4mm Pitch, YFF0006, NSMD pad definition Appendix A Virtex-7 BGA, 42x42 grid, 45x45mm.

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