Maxim Integrated DS1643P-C03 Nonvolatile Timekeeping RAM

The DS1643P-C03 is a state-of-the-art, nonvolatile timekeeping RAM module designed and manufactured by Maxim Integrated. This innovative product seamlessly integrates a full-featured real-time clock and a 64K x 8 nonvolatile static RAM into one compact PowerCap package. It is engineered to maintain data and accurate timekeeping in the absence of an external power source, making it an ideal solution for a wide range of applications where data integrity and timekeeping are critical.

The real-time clock in the DS1643P-C03 is a self-contained timekeeper that maintains the date and time down to the second. It has a built-in quartz crystal that ensures high accuracy and stability over a wide temperature range. The clock also includes an automatic leap year compensation up to the year 2100, providing long-term reliability without the need for manual adjustments.

The nonvolatile static RAM offers 64K bytes of storage, which is preserved by an onboard lithium energy cell during power loss. This feature ensures that data is not lost when the device is powered down or when the main power supply fails. The energy cell has a lifespan of over 10 years, ensuring long-term data retention without the need for an external battery.

The DS1643P-C03 is ideal for applications that require reliable timekeeping and data storage, such as embedded systems, utility meters, point-of-sale terminals, and industrial controllers. The module's PowerCap package allows for easy surface-mount assembly and provides a secure connection to an external backup capacitor if extended power-fail backup time is required.

Additional features of the DS1643P-C03 include a programmable interrupt function, which can be set to generate alarms at specific times, and a power-fail detect circuit that automatically switches to the backup energy cell when the main power supply drops below a certain threshold. This ensures that the real-time clock and RAM continue to function without interruption.

Overall, the DS1643P-C03 from Maxim Integrated is a robust, reliable, and versatile component that combines the functionality of a real-time clock and nonvolatile RAM, making it an essential part of any system where data and time must be preserved without fail.