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DS1307 Real-Time Clock
AdafruitArduino
A guide for connecting an Arduino to a DS1307 real-time clock, including battery backup and power management.
In stock
Specifications
2- Operating Voltage
- 3V (using CR1220 battery) DC
- Logic Level
- 5V DC
Pinout
5| Pin | Name | Functions | Notes |
|---|---|---|---|
| A5 | SCL | I2C | SCL pin |
| A4 | SDA | I2C | SDA pin |
| A3 | GND | POWER | Ground |
| A1 | HIGH | GPIO | High output |
| A2 | A2 | PWM | Analog pin, PWM-capable |
Interactive pinout
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