
ADA3386 · AdafruitActive


Adafruit product #3386 — built on PCF8523.
| Part number | ADA3386 |
|---|---|
| Manufacturer | Adafruit |
| Category | Interface & Expansion › RTC & Timing |
| Pins | 6 |
Adafruit PiRTC - PCF8523 Real Time Clock for Raspberry Pi pinout
| Pin | Name | Type | Description |
|---|---|---|---|
| 1 | 3.3V | power | |
| 2 | +5V | power | |
| 3 | SDA | bidirectional | |
| 4 | +5V | power | |
| 5 | SCL | bidirectional | |
| 6 | GND | ground |
Schematic symbol and footprint
Footprint: Adafruit PiRTC PCF8523 (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.
Related parts

Adafruit DS3231 Precision RTC - STEMMA QTADA5188

Adafruit DS3231 Precision RTC BreakoutADA3013

Adafruit PCF8523 Real Time Clock Assembled Breakout BoardADA3295

Adafruit PCF8523 Real Time Clock Breakout BoardADA5189

Adafruit PCF8575 I2C 16 GPIO Expander BreakoutADA5611

Adafruit PiCowbell Adalogger for Pico - MicroSD, RTC & STEMMA QTADA5703

Adafruit S-35710 Low-Power Wake Up Timer BreakoutADA5959

Adafruit Si5351A Clock Generator with STEMMA QT - 8KHz to 160MHzADA5640