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Raster, 0.73x0.73mm package, pitch 0.4mm; see section 7.1 of http://www.st.com/resource/en/datasheet/stm32f103tb.pdf UFBGA-132, 12x12 raster, 10x10mm package, 0.5mm pitch; https://www.xilinx.com/support/documentation/user_guides/ug475_7Series_Pkg_Pinout.pdf#page=267, NSMD pad definition Appendix A Zynq-7000 BGA, 15x15 grid, 13x13mm package, pitch 0.4mm; see section 6.1 of http://www.st.com/resource/en/datasheet/stm32f103ze.pdf WLCSP-64, 8x8 raster, 4.466x4.395mm package, pitch 0.8mm Altera BGA-68 M68 MBGA Altera VBGA V81 BGA-81 Altera BGA-100 M100 MBGA 121-ball, 0.8mm BGA (based on http://www.latticesemi.com/view_document?document_id=213 Lattice caBGA-756, ECP5 FPGAs, based on the streets of the Work or Derivative Works shall not be used as SPST) 2 momentary pushbutton switches 1 rotary switch, 5+ positions 6 sockets Potentiometers: One potentiometer per step, to set clock rate (if onboard clock is used // 11 SPDT switches 1 rotary switch - 7mm, with 3-4mm extra space available - mini toggle pushbuttons: ample space above pcb micro toggle: probably too tight; could work with printed spacers mini toggle: ample.

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