Maxim Integrated DS1647P-120 Timekeeping RAM

The DS1647P-120 is a robust and reliable Timekeeping RAM product from Maxim Integrated designed to provide a full-featured battery-backed nonvolatile SRAM along with an integrated real-time clock/calendar (RTC) and crystal, all in a power-efficient package. This innovative component is an ideal choice for applications requiring data storage and precise timekeeping in one compact module.

Key Features

• Integrated Real-Time Clock/Calendar: The DS1647P-120 includes a full-function, binary-coded decimal (BCD) clock/calendar that maintains seconds, minutes, hours, day, date, month, and year information. The accuracy of the clock is maintained within ±1 minute/month at 25°C.
• Battery Backup: The nonvolatile SRAM and real-time clock are maintained in the absence of power by an onboard lithium energy cell, ensuring data and time are preserved for the rated life of the battery.
• 4K x 32 Nonvolatile SRAM: It offers a substantial 128k bits of nonvolatile memory, enabling both data storage and timekeeping capabilities.
• Automatic Power-Fail Chip Deactivation: When power failures occur, the DS1647P-120 automatically switches to its battery supply, ensuring data integrity and clock functionality.
• Programmable Alarm and Interrupt Function: It features a programmable alarm that can be set to a specific date, day of the week, hour, and minute, which allows for precise scheduling of events or tasks.
• Low Power Operation: Designed for energy efficiency, the DS1647P-120 is optimized for low power consumption, extending the life of the battery and reducing the overall power requirements of the system.

Applications

The DS1647P-120 is versatile and can be used in a wide array of applications. It's particularly well-suited for use in embedded systems, utility meters, network hubs, routers, switches, and other industrial time-sensitive devices that require reliable timekeeping and data retention in the event of a power loss.

Overall, the Maxim Integrated DS1647P-120 Timekeeping RAM is a powerful and practical solution for designers looking to incorporate both nonvolatile memory and a real-time clock in their systems, without the need for additional components or complex configurations.