General Description
The DS1682 is an integrated elapsed-time recorder containing a factory-calibrated, temperature-compensated RC time base that eliminates the need for an external crystal. Using EEPROM technology to maintain data in the absence of power, the DS1682 requires no backup power source.

Benefits and Features
● 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 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
● High-Temp, Rugged, Industrial Applications Where Vibration or Shock Could Damage a Quartz Crystal
● Any System Where Time-of-Use is Important (Warranty Tracking)