Maxim Integrated DS1682S+T&R, Real Time Clock, 8-Pin SOIC, Часы реального времени

Records the Total Time that the Event Input has Been Active and the Number of Events that have Occurred
32-Bit, Nonvolatile, Elapsed Time Counter (ETC) Monitors Event Duration with Quarter-Second Resolution and Provides 34 Years of Total Time Accumulation
Programmable Elapsed Time Active-Low ALARM Output
Nonvolatile 17-Bit Event Counter Records the Total Number of Times an Event has Occurred
Calibrated, Temperature-Compensated RC Time Base Accurate to 2% Typical
10 Bytes of EEPROM User Memory
Write Disable Function to Prevent the Memory from Being Changed or Erased
2-Wire Serial Communication
Wide 2.5V to 5.5V Power-Supply Range
Useful in Time-of-Use Warranty, Calibration, Repair, and Maintenance Applications
Applications
Any System Where Time-of-Use is Important (Warranty Tracking)
High-Temp, Rugged, Industrial Applications Where Vibration or Shock Could Damage a Quartz Crystal

DS1682S+T&R - Datasheet