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BGA-624, 25x25 grid, 21x21mm package, pitch 0.4mm; see section 7.4 of http://www.st.com/resource/en/datasheet/DM00366448.pdf WLCSP-168, 12x14 raster, 4.891x5.692mm package, pitch 0.4mm; see section 7.2 of http://www.st.com/resource/en/datasheet/stm32f429ng.pdf WLCSP-143, 11x13 raster, 4.521x5.547mm package, pitch 0.5mm; see section 10.3 of https://www.parallax.com/sites/default/files/downloads/P8X32A-Propeller-Datasheet-v1.4.0_0.pdf 44-Lead Plastic Shrink Small Outline (SS)-5.30 mm Body [QFN] with corner pads and trace routing to de-bodge the pots. 's notes on repique/caixa, two or three for surdos Add schematic, start on PCB choices could also do all-different colors, but unfortunately Mouser only has A1Ms in orange. *** Expensive, about $3 each. *** Replacing.

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