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FT221XQ
Full Speed USB to 8-Bit SPI / FT1248 Bridge, QFN-20
Schematic Symbol
Pin Configuration (21 pins)
| Pin | Name | Type |
|---|---|---|
| 1 | MIOSI1 | input |
| 2 | MIOSI7 | input |
| 3 | GND | power_in |
| 4 | MIOSI5 | input |
| 5 | MIOSI6 | input |
| 6 | MIOSI3 | input |
| 7 | MISO | input |
| 8 | USBDP | bidirectional |
| 9 | USBDM | bidirectional |
| 10 | 3V3OUT | power_out |
| 11 | ~{RESET} | input |
| 12 | VCC | power_in |
| 13 | GND | power_in |
| 14 | ~{CS} | input |
| 15 | CLK | input |
| 16 | CBUS3 | bidirectional |
| 17 | MIOSI0 | input |
| 18 | MIOSI4 | input |
| 19 | MIOSI2 | input |
| 20 | VCCIO | power_in |
| 21 | GND | power_in |
Footprint
ConfirmedPackage_DFN_QFN/QFN-20-1EP_4x4mm_P0.5mm_EP2.5x2.5mm
Pad Layout
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Pads (25)
| Number | Type |
|---|---|
| — | smd |
| — | smd |
| — | smd |
| — | smd |
| 1 | smd |
| 2 | smd |
| 3 | smd |
| 4 | smd |
| 5 | smd |
| 6 | smd |
| 7 | smd |
| 8 | smd |
| 9 | smd |
| 10 | smd |
| 11 | smd |
| 12 | smd |
| 13 | smd |
| 14 | smd |
| 15 | smd |
| 16 | smd |
| 17 | smd |
| 18 | smd |
| 19 | smd |
| 20 | smd |
| 21 | smd |