ADA5956 · AdafruitActive
Adafruit product #5956 — built on MAX3421E. Interfaces: USB.
| Part number | ADA5956 |
|---|---|
| Manufacturer | Adafruit |
| Category | Interface & Expansion › Breakouts & Adapters |
| Pins | 31 |
Adafruit USB Host BFF for QT Py or Xiao with MAX3421E pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | +5V | power | |
| 2 | +5V | power | |
| 3 | 5V_EN | bidirectional | |
| 4 | A0 | bidirectional | |
| 5 | A0 | bidirectional | |
| 6 | GND | ground | |
| 7 | GND | ground | |
| 8 | CS | bidirectional | |
| 9 | CS | bidirectional | |
| 10 | CS | bidirectional | |
| 11 | 3.3V | power | |
| 12 | 3.3V | power | |
| 13 | IRQ | bidirectional | |
| 14 | IRQ | bidirectional | |
| 15 | IRQ | bidirectional | |
| 16 | MOSI | bidirectional | |
| 17 | MOSI | bidirectional | |
| 18 | A3 | bidirectional | |
| 19 | A3 | bidirectional | |
| 20 | MISO | bidirectional | |
| 21 | MISO | bidirectional | |
| 22 | SDA | bidirectional | |
| 23 | SDA | bidirectional | |
| 24 | SCK | bidirectional | |
| 25 | SCK | bidirectional | |
| 26 | SCL | bidirectional | |
| 27 | SCL | bidirectional | |
| 28 | RX | bidirectional | |
| 29 | RX | bidirectional | |
| 30 | TX | bidirectional | |
| 31 | TX | bidirectional |
Schematic symbol and footprint
Footprint: Adafruit USB Host BFF (header pads) — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.
Where to buy
Stock and prices from the suppliers, checked 2026-10-08; excluding tax and shipping.
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