General Description
The DS1683 is an integrated elapsed-time recorder containing a factory-calibrated, low-temperature-coefficient
RC time base that eliminates the need for an external crystal. Using EEPROM technology to maintain data in
the absence of power, the DS1683 requires no backup power source. The DS1683 detects and records the num
ber of falling edge transitions on the EVENT pin as well as the total cumulative time that the EVENT pin is held
high.

Benefits and Features
Records the Total Time the EVENT Input Has Been Active High and Number of Events (Falling Edges of EVENT) That Have Occurred
32-Bit, Nonvolatile, Elapsed Time Counter (ETC) Monitors Event Duration with Quarter Seconds Resolution and Provides 34 Years of Total Time Accumulation
Nonvolatile 16-Bit Event Counter Records the Number of Falling Edges Seen by the EVENT Pin
Calibrated, Low-Temperature-Coefficient RC Time Base
16 Bytes of User EEPROM
Password Protection Scheme (4 Bytes)
I2C-Compatible Interface
+2.5V to +5.5V Operating Voltage Range

APPLICATIONs
High-Temp, Rugged, Industrial Applications Where Vibration or Shock Could Damage a Quartz Crystal
Any System Where Time-of-Use is Important to Track
Power-on-Time Recorder