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BackOf http://www.st.com/resource/en/datasheet/DM00330506.pdf WLCSP-100, 10x10 raster, 4.618x4.142mm package, pitch 0.4mm; see section 7.5 of http://www.st.com/resource/en/datasheet/stm32f051t8.pdf WLCSP-36, 6x6 raster, 2.553x2.579mm package, pitch 0.4mm; see section 7.1 of http://www.st.com/resource/en/datasheet/stm32f410t8.pdf WLCSP-49, 7x7 raster, 3.277x3.109mm package, pitch 0.5mm UFBGA-64, 8x8 raster, 3.141x3.127mm package, pitch 0.8mm Altera BGA-68 M68 MBGA Altera UBGA U324 BGA-324 BGA-624, 25x25 grid, 21x21mm package, pitch 0.5mm; see section 6.1 of http://www.st.com/resource/en/datasheet/stm32f103ze.pdf WLCSP-64, 8x8 raster, 5x5mm package, pitch 0.5mm; see section 7.6 of http://www.st.com/resource/en/datasheet/DM00257211.pdf WLCSP-49, 7x7 raster, 3x3mm package, pitch 0.8mm; see section 7.4 of http://www.st.com/resource/en/datasheet/stm32l152zc.pdf UFBGA 132 Pins, 0.5mm Pitch, DSC0010J, WSON, http://www.ti.com/lit/ds/symlink/tps61201.pdf Plastic Small Outline http://www.vishay.com/docs/49633/sg2098.pdf SOP, 16 Pin (JEDEC MO-194 Var AB https://www.jedec.org/document_search?search_api_views_fulltext=MO-194), generated with kicad-footprint-generator Molex LY 20 series connector, B13B-XASK-1-A (http://www.jst-mfg.com/product/pdf/eng/eXA1.pdf), generated with kicad-footprint-generator JST PH side entry Molex MicroClasp Wire-to-Board System, 55935-1210, with PCB trace layout Checkpoint in case of the bad trace. Single-step button (SW13) isn't producing a high enough voltage to another voltage. Useful here for pitching up from a designated place, then offering equivalent access to copy from a base. 6 sockets Potentiometers: One potentiometer per step, to set output voltages. (10) - One SPDT switch to adjust CV output range, switch between 5v and 2.5v max (or whatever is configured). - Momentary-normal-off pushbutton to manually reset. - One potentiometer for internal clock signal (possibly external). Commonly called a "Baby 8". Final tweaks, version submitted to JLCPCB on 20240124 Final tweaks, version submitted to JLCPCB on 20240124 Final tweaks, version submitted to JLCPCB on 20240124 3d279dd88c Finish schematic, add PDF' (#2) from schematic by Eeschema 5.1.10-88a1d61d58~88~ubuntu20.04.1 | Refs | Qty | Component | Description | Manufacturer | Part | Vendor | SKU | | | | S3 | 1 | B10k | \*\*Potentiometer, 16 mm vertical board mount OR: **Potentiometer, 16 mm vertical board mount OR: | | R8, R10, R12 | 3 | A1M | Potentiometer | | R14 | 1 | 1 | Conn_01x04 | Pin header, 2.54 mm, 1x10 | | R15, R17, R19 | 3 | 100R | Resistor | | | C12 | 1 | 2_pin_Molex_connector | 2 pin Molex connector 2.54 mm 2x5"/>