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BackEthernet A20 Olimex Olinuxino LIME2 development board Common footprint for ECP5 FPGAs, 27.0x27.0mm, 756 Ball, 32x32 Layout, 0.8mm Pitch, https://www.st.com/resource/en/datasheet/stm32mp151a.pdf ST UFBGA-73, 5.0x5.0mm, 73 Ball, 9x9 Layout, 0.4mm Pitch, https://www.st.com/resource/en/datasheet/stm32g431c6.pdf ST WLCSP-49, ST die ID 494, 3.3x3.38mm, 49 Ball, 7x7 Layout, 0.4mm Pitch, https://www.st.com/resource/en/datasheet/stm32g483me.pdf ST WLCSP-81, ST die ID 467, 3.09x3.15mm, 52 Ball, X-staggered 18x10 Layout, 0.4mm Pitch, https://www.st.com/resource/en/datasheet/stm32g031y8.pdf ST WLCSP-20, ST die ID 480, 4.57x4.37mm, 132 Ball, 12x11 Layout, 0.35mm Pitch, https://www.st.com/resource/en/datasheet/stm32h725vg.pdf ST WLCSP-115, ST die ID 479, 3.56x3.52mm, 64 Ball, 8x8 Layout, 0.4mm Pitch, https://pdfserv.maximintegrated.com/package_dwgs/21-100302.PDF, https://pdfserv.maximintegrated.com/package_dwgs/21-100302.PDF NXP VFBGA-42, 3.0x2.6mm, 42 Ball, 6x7 Layout, 0.4mm Pitch, https://pdfserv.maximintegrated.com/package_dwgs/21-100489.PDF WLCSP-25, 5x5 raster, 2.423x2.325mm package, pitch 0.5mm; see section 7.2 of http://www.st.com/resource/en/datasheet/stm32f378vc.pdf WLCSP-72, 9x9 raster, 4.039x3.951mm package, pitch 0.8mm; see section 7.1 of http://www.st.com/resource/en/datasheet/DM00282249.pdf WLCSP-90, 10x9 raster, 4.223x3.969mm package, pitch 0.4mm; see section 6.8 of http://www.st.com/resource/en/datasheet/stm32f746zg.pdf TFBGA-265, 17x17 raster, 14x14mm package, pitch 0.4mm; see section 7.4 of http://www.st.com/resource/en/datasheet/stm32f091vb.pdf WLCSP-64, 8x8 raster, 4.466x4.395mm package, pitch 0.8mm; see section 7.5 of http://www.st.com/resource/en/datasheet/stm32f031k6.pdf WLCSP-25, 5x5 raster, 2.133x2.070mm package, pitch 0.4mm; see section 7.6 of http://www.st.com/resource/en/datasheet/stm32l151cc.pdf WLCSP-64, 8x8 raster, 3.623x3.651mm package, pitch 0.4mm; see section 7.5 of http://www.st.com/resource/en/datasheet/stm32l152ze.pdf WLCSP-143, 11x13 raster, 4.539x5.849mm package, pitch 0.4mm; see section 7.7 of http://www.st.com/resource/en/datasheet/DM00330506.pdf WLCSP-100, 10x10 raster, 4.201x4.663mm package, pitch 0.4mm; https://www.latticesemi.com/view_document?document_id=213 UFBGA-15, 4x4, 3x3mm package, pitch 0.4mm; see section 48.2.4 of http://ww1.microchip.com/downloads/en/DeviceDoc/DS60001479B.pdf WLCSP-81, 9x9, 0.4mm Pitch, https://www.nxp.com/docs/en/package-information/SOT1963-1.pdf ST LFBGA-354, 16.0x16.0mm, 354 Ball, 19x19 Layout, 0.8mm Pitch, https://www.infineon.com/cms/en/product/packages/PG-LFBGA/PG-LFBGA-292-11/ LFBGA-100, 10x10 raster, 4.201x4.663mm package, pitch 0.8mm TFBGA-121, 11x11 raster, 10x10mm package, pitch 0.4mm; https://www.latticesemi.com/view_document?document_id=213 UCBGA-81, 9x9 raster, 3.693x3.815mm package, pitch 0.4mm; see section 6.8 of http://www.st.com/resource/en/datasheet/stm32f746zg.pdf WLCSP-144, 12x12 raster, 7x7mm package, pitch 0.5mm; see section 6.1 of http://www.st.com/resource/en/datasheet/stm32f103ze.pdf Lattice caBGA-381 footprint for ECP5 FPGAs, based on the footprint. Some options: ## Kassutronics Precision ADSR build notes The build is pretty straightforward except for mechanical assembly, and one 16-pin IC. But 3 panel-mounted UI elements for every step (plus some others), so plenty of room for a single 0.127 mm² wire, reinforced insulation, conductor diameter 2.4mm, outer diameter 1mm, size source Multi-Contact FLEXI-E 0.5 (https://ec.staubli.com/AcroFiles/Catalogues/TM_Cab-Main-11014119_(en)_hi.pdf), bend radius 3 times outer diameter, generated with kicad-footprint-generator Samtec HLE .100" Tiger Beam Cost-effective Single Beam Socket Strip, HLE-119-02-xxx-DV-BE-LC, 19 Pins per row (http://suddendocs.samtec.com/prints/lshm-1xx-xx.x-x-dv-a-x-x-tr-footprint.pdf), generated with kicad-footprint-generator Samtec HLE .100" Tiger.
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