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4.437x4.456mm, 100 Ball, 10x10 Layout, 0.4mm Pitch, https://www.st.com/resource/en/datasheet/stm32l562ce.pdf ST WLCSP-90, ST die ID 472, 4.36x4.07mm, 81 Ball, 9x9 Layout, 0.4mm Pitch, https://pdfserv.maximintegrated.com/package_dwgs/21-100489.PDF WLCSP-25, 5x5 raster, 2.097x2.493mm package, pitch 0.5mm; see section 7.5 of http://www.st.com/resource/en/datasheet/DM00284211.pdf WLCSP-104, 9x12 raster, 4.095x5.094mm package, pitch 0.4mm; see section 7.1 of http://www.st.com/resource/en/datasheet/stm32f401vc.pdf WLCSP-49, 7x7 raster, 2.965x2.965mm package, pitch 0.4mm; see section.

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