ADA4471 · AdafruitActive
Adafruit product #4471 — built on MCP2221A. Interfaces: I2C, USB.
| Part number | ADA4471 |
|---|---|
| Manufacturer | Adafruit |
| Category | Interface & Expansion › I/O Expanders & Multiplexers |
| Pins | 12 |
Adafruit MCP2221A Breakout - General Purpose USB to GPIO ADC I2C pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | RX | bidirectional | |
| 2 | TX | bidirectional | |
| 3 | GP3 | bidirectional | |
| 4 | GP2 | bidirectional | |
| 5 | GP1 | bidirectional | |
| 6 | GP0 | bidirectional | |
| 7 | +5V | power | |
| 8 | GND | ground | |
| 9 | +3V3 | power | |
| 10 | !RST | bidirectional | |
| 11 | SCL | bidirectional | |
| 12 | SDA | bidirectional |
Schematic symbol and footprint
Footprint: Adafruit MCP2221A USB to GPIO / ADC / DAC breakout (header pads) — to scale, pad 1 in yellow (mm). Check against the datasheet before ordering PCBs.
Datasheet
Where to buy
Stock and prices from the suppliers, checked 2026-10-08; excluding tax and shipping.
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