Features :

1. This is the DS1307 Real Time Clock developed by one of our designers.
2. Two-wire I2C interface.
3. Hour: Minutes: Seconds AM/PM.
4. Day Month, Date – Year.
5. 1Hz output pin.
6. Consumes less than 500nA in battery backup mode with oscillator running
7. Available in 8-pin DIP or SOIC
8. Underwriters Laboratory (UL) recognized
9. Real-time clock (RTC) counts seconds, minutes, hours, date of the month, month, day of the week, and year with leap-year compensation valid up to 2100
10. 56-byte non-volatile RAM for data storage
11. 56 Bytes of Non-volatile memory available to the user.
12. The DS1307 is accessed via the I2C protocol.
13. The module comes fully assembled and pre-programmed with the current time.

Specifications:

Highly Accurate RTC Completely Manages All
Timekeeping Functions
• Real-Time Clock Counts Seconds, Minutes, Hours,
Date of the Month, Month, Day of the Week, and
Year, with Leap-Year Compensation Valid Up to 2100
• Accuracy ±2ppm from 0°C to +40°C
• Accuracy ±3.5ppm from -40°C to +85°C
• Digital Temp Sensor Output: ±3°C Accuracy
• Register for Aging Trim
• RST Output/Pushbutton Reset Debounce Input
• Two Time-of-Day Alarms
• Programmable Square-Wave Output Signal