DS1307 Real Time Clock Module

Part Number PRORT-001101 Category

This real time clock module is based on the DS1307 chip which supports the I2C protocol. The clock and calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either a 24-hour or 12-hour format with AM/PM indicator.

Note: CR2032 Coin Cell Batteryis not included.



  • 5V Operating Voltage
  • Programmable Square-Wave Output Signal
  • Automatic Power-Fail Detect and Switching Circuit
  • Consumes less than 500nA in Battery-Backup Mode with Oscillator Running
  • 56-Byte, Battery-Backed, Non-volatile (NV) RAM for Data Storage