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DS1307 Real-Time Clock
AdafruitN/A
A battery-backed real-time clock (RTC) that keeps time even when the Arduino is reprogrammed or loses power.
In stock
Specifications
2- Operating Voltage
- 3V (from coin cell) or 5V (for querying) V
- Logic Level
- 3V V
Pinout
4Low source legibility.The original manufacturer datasheet for this part was difficult to read, so this pinout may be incomplete or imperfect. Always confirm against the specific manufacturer’s datasheet before wiring.
| Pin | Name | Functions | Notes |
|---|---|---|---|
| 5 | VCC | POWER | Used to power the RTC chip when querying for time. |
| 12 | GND | GND | Common power/data ground. |
| 3 | SDA | I2C | Used to communicate with the I2C bus on the Arduino. |
| 7 | SCL | I2C | Used to synchronize communication on the I2C bus. |
Interactive pinout
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