The DS1386-32-120 is a high-performance, full-function real-time clock/calendar (RTC) and watchdog timer integrated with a battery-backed nonvolatile (NV) static RAM from Maxim Integrated. This innovative product is designed for computing applications requiring solid timekeeping and system integrity checks, making it an ideal solution for embedded systems, utility meters, industrial controllers, and other data-sensitive applications.

Key Features

• Real-Time Clock/Calendar: The device maintains seconds, minutes, hours, day, date, month, and year information with leap year compensation valid up to the year 2100. The clock/calendar provides two programmable time-of-day alarms and a programmable interrupt output for versatile time management.
• Watchdog Timer: The built-in watchdog timer improves system reliability by initiating a system reset if the microprocessor or software malfunctions. This feature is critical for systems that require high reliability and minimal downtime.
• Nonvolatile RAM: With 32KB of NV SRAM, the DS1386-32-120 ensures data retention without an external battery during power loss. The NV SRAM can be used to store system parameters, event logs, or any critical data that must be preserved when the main power is not available.
• Power Management: The device includes an automatic power-fail chip deselect and write protection, ensuring data integrity during power transitions.
• Package and Speed: The DS1386-32-120 comes in a 120 ns access time version, packaged in a 34-pin PowerCap Module (PCM), which provides direct connection to a backup energy source to maintain time and data.

Applications

The versatility of the DS1386-32-120 makes it suitable for a wide range of applications, including:

• Embedded Systems
• Utility Metering
• Industrial Controllers
• POS Terminals
• Network Hubs, Bridges, and Routers

Overall, the DS1386-32-120 from Maxim Integrated stands as a robust component that offers a combination of real-time clock/calendar functions, nonvolatile data storage, and system watchdog capabilities, ensuring reliability and data integrity in critical applications.