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
