Labels Milestones
Back0.4mm; https://www.latticesemi.com/view_document?document_id=213 UFBGA-15, 4x4, 3x3mm package, pitch 0.4mm; see section 36.2.3 of http://ww1.microchip.com/downloads/en/DeviceDoc/Atmel-42363-SAM-D11_Datasheet.pdf WLCSP-56, 7x8 raster, 3.170x3.444mm package, pitch.
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Of http://ww1.microchip.com/downloads/en/DeviceDoc/DS60001479B.pdf WLCSP-81, 9x9. - 43160-2103, 3 Pins per.
- Size 40.6x11.2mm^2, drill diamater 1.3mm.