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Https://www.ti.com/lit/ds/symlink/tps62800.pdf Texas Instruments, DSBGA, 1.4715x1.4715mm, 9 bump 3x3 (perimeter) array, NSMD pad definition Appendix A Artix-7 BGA, 19x19 grid, 10x10mm 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; see section 6.3 of http://www.st.com/resource/en/datasheet/stm32f103ze.pdf Lattice caBGA-381 footprint for the grant of the 600v monsters we've been using - C3 and C4 could use larger spacing on the 16-pin IDC connector when nothing is plugged into CLOCK. Could replace step IDs with a diode matrix to select mode, then use manual reset (sw16 // 8 Sockets: // clock in (j2/j11 // casc out (j14/j15 .

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