Analog Devices Inc./Maxim Integrated Tariff Inquiry

DS1251WP-120IND

DS1251WP-120IND Description

The DS1251WP-120IND is a Phantom Time Chip from Analog Devices Inc./Maxim Integrated, designed to provide reliable real-time clock (RTC) functionality with integrated non-volatile static RAM (NVSRAM). This component is housed in a tube package and features a parallel interface, making it suitable for applications requiring robust timekeeping and data storage capabilities. The DS1251WP-120IND operates within a supply voltage range of 2.97V to 3.63V and is powered by a 3V battery backup, ensuring continuous operation even during power outages. It supports both 12-hour and 24-hour time formats and includes advanced features such as leap year calculation and NVSRAM, offering a total memory size of 512KB. With a maximum timekeeping current of 7mA at 3.3V, this chip is optimized for low power consumption, making it ideal for battery-operated devices. Despite being marked as obsolete, the DS1251WP-120IND remains a valuable component for legacy systems and specific applications where its unique features are required.

DS1251WP-120IND Features

• Non-Volatile Static RAM (NVSRAM): The DS1251WP-120IND integrates 512KB of NVSRAM, providing a significant amount of non-volatile memory for data storage. This feature ensures that critical data is retained even when power is lost, making it ideal for applications requiring reliable data backup.
• Leap Year Calculation: The chip includes built-in leap year calculation, simplifying the process of maintaining accurate timekeeping over extended periods. This feature eliminates the need for additional software or manual adjustments, enhancing the reliability and accuracy of timekeeping.
• Low Power Consumption: With a maximum timekeeping current of 7mA at 3.3V, the DS1251WP-120IND is designed for low power consumption, making it suitable for battery-operated devices and applications where power efficiency is crucial.
• Parallel Interface: The parallel interface allows for efficient communication with other system components, facilitating fast data transfer and integration into existing systems.
• Surface Mount Technology (SMT): The surface mount mounting type ensures easy integration into modern printed circuit boards (PCBs), providing a compact and reliable solution for space-constrained applications.
• Moisture Sensitivity Level (MSL) 3: With an MSL rating of 3 (168 hours), the DS1251WP-120IND is suitable for use in environments with moderate humidity levels, ensuring reliable performance in a variety of industrial and consumer applications.

DS1251WP-120IND Applications

The DS1251WP-120IND is well-suited for a variety of applications where accurate timekeeping and reliable data storage are essential. Some specific use cases include:

• Embedded Systems: Ideal for embedded systems requiring precise timekeeping and non-volatile data storage, such as industrial controllers, medical devices, and automotive systems.
• Battery-Operated Devices: Suitable for battery-operated devices where low power consumption and reliable data retention are critical, such as portable medical devices, environmental sensors, and remote monitoring systems.
• Legacy Systems: Given its obsolete status, the DS1251WP-120IND is particularly valuable for maintaining and upgrading legacy systems where its unique features and compatibility are required.
• Data Logging: The integrated NVSRAM and low power consumption make it an excellent choice for data logging applications, ensuring that data is reliably stored and retrieved even in the event of power loss.

Conclusion of DS1251WP-120IND

The DS1251WP-120IND Phantom Time Chip from Analog Devices Inc./Maxim Integrated offers a comprehensive solution for real-time clock and data storage applications. Its unique features, including 512KB of NVSRAM, leap year calculation, and low power consumption, make it a reliable and efficient choice for a variety of applications. Despite being marked as obsolete, the DS1251WP-120IND remains a valuable component for specific use cases, particularly in legacy systems and battery-operated devices. Its robust performance and compatibility with modern PCB designs ensure that it continues to meet the needs of engineers and designers in the electronics industry.