Openbiosprog-spi solderpad
openbiosprog-spi / .solderpad / bom.json
{
"items": [
{ "designator": "IC1", "value": "FT2232HL", "description": "USB 2.0 Hi-Speed (480Mb/s) to UART/FIFO IC LQFP-64" },
{ "designator": "IC2", "value": "15-DIP08PZ", "description": "DIP-8 socket for SPI chip. 2.54mm pitch, 10.03mm x 10.16mm, row distance 7.62mm" },
{ "designator": "U1", "value": "TLV1117-33CDCYRG3", "description": "TLV1117 voltage regulator" },
{ "designator": "U2", "value": "538-54819-0572", "description": "Female Mini-USB connector, Type B, 10mm x 3,95mm x 9,2mm. Mouser: Molex part no. 0548190572, Drawing. The CSD one has a slightly different footprint, but made the Kicad footprint generic enough to work for both." },
{ "designator": "X1", "value": "ABLS-12000MHZ-B4-T", "description": "Crystal. SMD part, +/- 30 ppm, 4.8mm x 11.5mm x 4.2mm (W x L x H). Sometimes the footprint/package is called HC49/US, HC49/U, HC49S, or HC49-S4. If in doubt, check the datasheet and make sure the land pattern / footprint matches. Mouser's ABLS-12.000MHZ-B4-T has 18pF load capacitance, CSD part no. 14-4S12,000MHZ has 30pF. Ideally you should use the matching capacitors, but the 27pF ones should be fine in most cases." },
{ "designator": "C7, C9", "value": "115-06N027", "description": "27pF ceramic capacitor." },
{ "designator": "C4, C6, C10, C11, C12, C13, C14, C15, C16", "value": "115-06N100", "description": "100nF ceramic capacitor." },
{ "designator": "C8", "value": "B45196H2475K109", "description": "3.3uF / 10V Tantal capacitor." },
{ "designator": "C2, C3", "value": "B45196H2475K109", "description": "4.7uF / 10V Tantal capacitor." },
{ "designator": "C17", "value": "B45196H2106M109", "description": "10uF / 10V Tantal capacitor." },
{ "designator": "C18", "value": "121-D10R100", "description": "100uF / 10V Tantal capacitor. If you don't have 100uF/10V, some 100uF/16V or 100uF/6.3V should also be fine." },
{ "designator": "R3, R4", "value": "4k7", "description": "Resistor" },
{ "designator": "R1, R11", "value": "1k", "description": "Resistor" },
{ "designator": "R2", "value": "12k", "description": "Resistor. Should be 1% precision ideally." },
{ "designator": "R5", "value": "0Ω", "description": "Optional. You can put a 0Ω resistor, a capacitor, or just a ball of solder here, I think. Anything should be fine." },
{ "designator": "L1, L2", "value": "BLM18EG601SN1D", "description": "600Ω, 500mA chip ferrite bead" },
{ "designator": "D1", "value": "LED", "description": "Power LED. Choose any color you like. Play with the value of R11 to make the LED more/less brighter." }
]
}