DS1682S+

The DS1682S+ from Analog Devices / Maxim Integrated is an integrated elapsed-time recorder designed for applications where monitoring operational time and event counts is crucial. It utilizes a factory-calibrated, temperature-compensated RC time base, eliminating the need for an external crystal and ensuring accuracy.

This device features a 32-bit nonvolatile elapsed time counter (ETC) with quarter-second resolution, capable of accumulating up to 34 years of total time. It also includes a nonvolatile, 17-bit event counter to record the number of occurrences on its EVENT pin. An ALARM pin provides notification when the accumulated time reaches a user-programmed value, with programmable polarity.

The DS1682S+ operates over a wide 2.5V to 5.5V power-supply range and communicates via a 2-wire serial interface (I²C compatible). It includes 10 bytes of EEPROM user memory for configuration and data storage, along with a write-disable function to protect data integrity. The device is housed in an 8-SOIC package suitable for surface mounting.

Ideal for warranty tracking, calibration, repair, and maintenance applications, especially in high-temperature or rugged environments where vibration or shock could affect quartz crystals. Its nonvolatile data retention means no backup power source is required.