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2.097x2.493mm package, pitch 0.4mm; see section 7.5 of http://www.st.com/resource/en/datasheet/stm32f303zd.pdf WLCSP-100, 10x10 raster, 9x9mm package, pitch 0.5mm UFBGA-64, 8x8 raster, 4.539x4.911mm package, pitch 0.4mm pad, based on the front panel. Current design uses six IDC 2×8 connectors with 4 positions D 4 rotary switches are actually 2p6t, which means only six different step counts are available until the replacement arrives - Wiring SW15 (once/stop) and cascade out is easier done via skywiring; only one cross-board wire is needed, vs 3 if the Program (or with a wire. 06850ab678 Delete '3D Printing/Panels/SPIDER.

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