D1 Mini RTC (DS1307) Real Time Clock with 32K EEPROM

DS1307 Real Time Clock I2C Module Information Sheet

Product Overview: The Tiny RTC DS1307 Real Time Clock I2C Module is a compact, low-power real-time clock module based on the DS1307 chip. It features an I2C interface, making it easy to integrate with microcontrollers like Arduino for projects requiring precise timekeeping.

Key Features:

• Clock Chip: DS1307 Real Time Clock

• Memory: 32K I2C EEPROM (AT24C32)

• Battery Backup: CR2032 coin cell battery (not included)

• Voltage Range: 3.0V to 5.5V

• Dimensions: 28mm x 25mm x 8.4mm

• Weight: 6.3g

• Operating Temperature: -55°C to +125°C

• Accuracy: ±0.5°C from -10°C to +85°C

Applications:

• Data logging with accurate timestamps

• Home automation systems

• Alarm systems

• Time-based scheduling tasks

• Any project requiring precise timekeeping

Specifications:

• Communication Protocol: I2C (2-wire interface)

• Timekeeping: Seconds, minutes, hours, day, date, month, year

• Non-Volatile RAM: 56 bytes

• Power Consumption: Less than 500nA in battery backup mode

• Square-Wave Output: Programmable

• Brownout Detection: Built-in power-sense circuit

Pinout:

• VCC: Power Supply (3.0V to 5.5V)

• GND: Ground

• SCL: I2C Clock (connect to SCL pin of microcontroller)

• SDA: I2C Data (connect to SDA pin of microcontroller)

• BAT: Battery Backup (connect to CR2032 coin cell battery)

Additional Features:

• Leap Year Compensation: Automatically adjusts for leap years

• Automatic Power-Down Detection: Switches to battery backup when main power is off

• Compact Design: Easy to integrate into various projects