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See figure 8.2 of https://www.silabs.com/documents/public/data-sheets/efm8bb1-datasheet.pdf 20-Lead Plastic Thin Quad Flatpack (PT) - 12x12x1 mm Body, 2.00 mm Footprint [HTQFP] thermal pad LQFP, 32 Pin (https://www.renesas.com/eu/en/package-image/pdf/outdrawing/l32.4x4a.pdf), generated with kicad-footprint-generator JST XA series connector, B16B-PUDSS (http://www.jst-mfg.com/product/pdf/eng/ePUD.pdf), generated with kicad-footprint-generator Mounting Hardware, external M3, height 13, Wuerth electronics 9774100960 (https://katalog.we-online.de/em/datasheet/9774100960.pdf,), generated with kicad-footprint-generator ipc_noLead_generator.py WSON, 8 Pin (https://www.qorvo.com/products/d/da001879), generated with kicad-footprint-generator Inductor SMD 1206 (3216 Metric), reverse mount, square (rectangular) end terminal, IPC_7351 nominal, (Body size source: IPC-SM-782 page 72, https://www.pcb-3d.com/wordpress/wp-content/uploads/ipc-sm-782a_amendment_1_and_2.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py VQFN, 24 Pin (http://www.analog.com/media/en/package-pcb-resources/package/pkg_pdf/ltc-legacy-qfn/QFN_20_05-08-1742.pdf), generated with kicad-footprint-generator Mounting Hardware, inside through hole 3.3mm, height 2.5, Wuerth electronics 9774020243 (https://katalog.we-online.de/em/datasheet/9774020243.pdf), generated with kicad-footprint-generator Molex Micro-Fit 3.0 Connector System, 43045-2200 (alternative finishes: 43045-062x), 3 Pins per row (http://suddendocs.samtec.com/prints/hle-1xx-02-xxx-dv-xx-xx-xx-mkt.pdf, http://suddendocs.samtec.com/prints/hle-dv-footprint.pdf), generated with kicad-footprint-generator Mounting Hardware, inside through hole M2, height 4, Wuerth electronics 9771090360 (https://katalog.we-online.com/em/datasheet/9771090360.pdf), generated with kicad-footprint-generator Soldered wire connection with double feed.