ADA3458 · AdafruitActive
Adafruit product #3458 — built on ATMEGA328P.
| Part number | ADA3458 |
|---|---|
| Manufacturer | Adafruit |
| Category | Development Boards › Arduino-compatible (AVR) |
| Pins | 28 |
| Voltage (max) | 3.3 V |
| Frequency | 8 MHz |
Adafruit Feather 328P - Atmega328P 3.3V @ 8 MHz pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | VBAT | power | |
| 2 | EN | bidirectional | |
| 3 | VBUS | power | |
| 4 | D4 | bidirectional | |
| 5 | D3 | bidirectional | |
| 6 | D2 | bidirectional | |
| 7 | D10 | bidirectional | |
| 8 | D9 | bidirectional | |
| 9 | D6 | bidirectional | |
| 10 | D5 | bidirectional | |
| 11 | A5/SCL | bidirectional | |
| 12 | A4/SDA | bidirectional | |
| 13 | RESET | bidirectional | |
| 14 | 3.3V | power | |
| 15 | AREF | bidirectional | |
| 16 | GND | ground | |
| 17 | A0 | bidirectional | |
| 18 | A1 | bidirectional | |
| 19 | A2 | bidirectional | |
| 20 | A3 | bidirectional | |
| 21 | A6 | bidirectional | |
| 22 | A7 | bidirectional | |
| 23 | D13/SCK | bidirectional | |
| 24 | D11/MOSI | bidirectional | |
| 25 | D12/MISO | bidirectional | |
| 26 | D0/RX | bidirectional | |
| 27 | D1/TX | bidirectional | |
| 28 | D7 | bidirectional |
Schematic symbol and footprint
Footprint: Adafruit Feather 328P (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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