Microchip MCP79412-I/MS, Real Time Clock (RTC) Serial-I2C, 8-Pin MSOP

The MCP79412 general purpose I2C™Compatible real-time clock/calendar (RTCC) is highly integrated with nonvolatile memory and advanced features normally found in higher priced devices. These features include a battery switchover circuit for backup power, a time stamp to log power failures and digital trimming for accuracy.

• Hours, Minutes, Seconds, Day of Week, Day, Month, Year
  Leap year compensated to 2399
  12/24 hour modes
  1 PPM Resolution
  ±129 PPM Range
  Dual Programmable Alarms
  Timekeeping
  Battery-Backed Real-Time Clock/Calendar (RTCC)
  Hours, Minutes, Seconds, Day of Week, Day, Month, Year
  Leap year compensated to 2399
  12/24 hour modes
  On-Chip Digital Trimming/Calibration
  1 PPM Resolution
  ±129 PPM Range
  Dual Programmable Alarms
  Versatile Output Pin
  Clock output with selectable frequency
  Alarm output
  General Purpose output
  Power-Fail Time-Stamp