The DS1642-150 from Maxim Integrated is a state-of-the-art, nonvolatile timekeeping RAM that integrates a full-featured real-time clock and a fixed 31-byte day-of-the-month alarm with a 2K x 8 nonvolatile static RAM. Designed to maintain accurate time and date, even when the main power to the device has failed, the DS1642-150 ensures data integrity and timekeeping in a wide range of applications, from embedded systems to telecommunications and networking equipment.

Key Features

• Real-Time Clock (RTC): Keeps track of seconds, minutes, hours, days, date, month, and year information. The clock is accurate up to the year 2100, with automatic leap year compensation.
• Nonvolatile RAM: Features 2K x 8 bits of nonvolatile static RAM, which retains data in the absence of power, eliminating the need for battery backup of RAM.
• Integrated Battery: Comes with a built-in, long-life lithium battery that ensures data and time retention for over 10 years, providing a reliable timekeeping solution.
• Day-of-the-Month Alarm: Allows setting of a monthly alarm to generate a system interrupt, enhancing task scheduling and management.
• Programmable Square-Wave Output: Supports a programmable square-wave output for timing and clock functions.
• Low Power Consumption: Designed for efficient power usage, making it ideal for battery-powered applications.
• Simple Parallel Interface: Enables easy interfacing with microprocessors, with the nonvolatile functionality being transparent to the user.

Applications

The DS1642-150 is well-suited for applications that require reliable timekeeping and data retention without a continuous power supply. It is commonly used in:

• Embedded Systems
• Network Hubs, Bridges, and Routers
• Telecommunications Systems
• Industrial Controllers
• Utility Meters

With its robust feature set and Maxim Integrated's reputation for quality, the DS1642-150 is the ideal choice for any application needing a dependable nonvolatile memory and real-time clock solution.