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WLCSP-20, ST die ID 450, 4.96x4.64mm, 156 Ball, 13x12 Layout, 0.35mm Pitch, https://www.onsemi.com/pdf/datasheet/ncp163-d.pdf#page=23 6pin Pitch 0.4mm http://www.ti.com/lit/ds/symlink/txb0108.pdf USON-20 2x4mm Pitch 0.4mm WLCSP WLCSP/XFBGA 8-pin package, staggered pins, http://www.adestotech.com/wp-content/uploads/DS-AT25DF041B_040.pdf WLCSP WLCSP-8 XFBGA XFBGA-8 CSP BGA Chip-Scale Glass-Top WLCSP-8, 2.284x1.551mm, 8 Ball, 2x4 Layout, 0.5mm Pitch, https://www.st.com/resource/en/datasheet/stulpi01a.pdf TFBGA-64, 8x8 raster, 3.141x3.127mm package, pitch 0.4mm; see section 7.6 of http://www.st.com/resource/en/datasheet/stm32f207vg.pdf WLCSP-66, 8x9 raster, 3.767x4.229mm package, pitch 0.4mm; see section 7.1 of http://www.st.com/resource/en/datasheet/DM00213872.pdf WLCSP-64, 8x8 raster, 3.623x3.651mm package, pitch 0.8mm; see section 7.2 of http://www.st.com/resource/en/datasheet/stm32f207vg.pdf VFBGA-49, 7x7, 5x5mm package, pitch 0.5mm; see section 7.1 of http://www.st.com/resource/en/datasheet/stm32f301r8.pdf WLCSP-49, 7x7 raster, 2.999x3.185mm package, pitch 0.5mm UFBGA-64, 8x8 raster, 3.623x3.651mm package, pitch 0.4mm; see section 6.3 of http://www.st.com/resource/en/datasheet/stm32f103ze.pdf Lattice caBGA-381 footprint for the four plastic clips sliders: 3mm above panel, ample thunkicons: probably too tight; could work with printed spacers mini toggle: 2.5mm above panel, tight but possible mini toggle: 4mm above panel, tight but possible micro toggle: probably too tight; could work with printed spacers and existing lead lengths From b1fcba1e78f37669542b35a3e32a5257c5c0240c Mon Sep 17 00:00:00 2001 Subject: [PATCH] checkpoint after roughing out middle PCB Update to 7.0, slider footprint adds ideas for a little wiggle room on the bottom //another rib to balance the switches along the panel on the mid surdos.

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