The DS1685E-5+ is a full-featured, year-2000-compliant (Y2K), real-time clock (RTC) from Maxim Integrated. This integrated circuit (IC) is designed to provide a comprehensive timekeeping solution for a wide array of applications. It is a 5V RTC with a built-in microprocessor-compatible interface, ensuring easy integration into many system architectures.

Key Features

• Accurate Timekeeping: Internal circuitry compensates for temperature and voltage variations, making the DS1685E-5+ a highly accurate real-time clock, capable of maintaining time with precision.
• Battery Backup: It includes a lithium battery input for long-term energy-independent data and time retention, ensuring that the clock continues to run even in the event of a power failure.
• Nonvolatile Memory: The device features 114 bytes of NV SRAM, which allows for the storage of critical data that must be preserved during power loss.
• Extended Operating Temperature: The DS1685E-5+ is designed to operate over an industrial temperature range, making it suitable for demanding environments.
• Programmable Alarm: It includes an alarm function that can be set to a specific time of day, day of the week, or day of the month, providing flexibility for various application needs.
• Leap Year Compensation: The device automatically adjusts for months with fewer than 31 days, including corrections for leap year, ensuring the date is always accurate.

Applications

The DS1685E-5+ is ideal for applications that require reliable and precise timekeeping. It is commonly used in:

• Embedded Systems
• Utility Meters
• Point of Sale (POS) Terminals
• Industrial Controllers
• Telecommunication Systems

With its robust feature set and Maxim Integrated's reputation for quality, the DS1685E-5+ is an excellent choice for any system requiring an accurate RTC with battery backup capabilities.