Analog Devices Inc./Maxim Integrated

DS1557P-70IND+  

Real Time Clocks ICs

DS1557P-70IND+ Description

The DS1557P-70IND+ is a high-performance Real-Time Clock (RTC) and Calendar IC designed by Analog Devices Inc./Maxim Integrated. This device is part of the DS1557 family and is optimized for surface-mount applications. It features a robust set of functionalities including timekeeping, alarm, leap year compensation, and a watchdog timer. The DS1557P-70IND+ operates within a supply voltage range of 4.5V to 5.5V and is equipped with a 3V battery backup to ensure continuous operation even during power failures. The device is housed in a tray package and is compliant with the REACH and RoHS3 standards, making it suitable for a wide range of industrial and consumer applications.

DS1557P-70IND+ Features

• Clock/Calendar Functionality: The DS1557P-70IND+ provides a comprehensive clock and calendar solution with timekeeping accuracy down to the second. It supports a 24-hour time format (HH:MM:SS) and includes features such as leap year compensation and Y2K compliance.
• Non-Volatile SRAM (NVSRAM): The device includes 512KB of NVSRAM, ensuring data retention even when power is lost. This feature is particularly beneficial for applications requiring persistent data storage.
• Alarm and Watchdog Timer: The DS1557P-70IND+ features an integrated alarm function and a watchdog timer, providing additional functionality for system monitoring and control.
• Parallel Interface: The device communicates via a parallel interface, facilitating easy integration with various microcontrollers and systems.
• Low Power Consumption: With a maximum timekeeping current of 6mA at 5V, the DS1557P-70IND+ is designed for low power consumption, making it ideal for battery-operated devices.
• Compliance and Reliability: The DS1557P-70IND+ is REACH unaffected and RoHS3 compliant, ensuring it meets the highest environmental and safety standards. It also has a moisture sensitivity level (MSL) of 3, allowing for 168 hours of exposure before reflow soldering.

DS1557P-70IND+ Applications

The DS1557P-70IND+ is ideal for a variety of applications where accurate timekeeping and data retention are critical. Some specific use cases include:

• Embedded Systems: The DS1557P-70IND+ can be used in embedded systems where precise timekeeping and reliable data storage are required. Its low power consumption and robust features make it suitable for battery-operated devices.
• Industrial Control: In industrial environments, the DS1557P-70IND+ can provide accurate time synchronization and data logging, ensuring reliable operation and monitoring of critical processes.
• Consumer Electronics: The device's compact size and surface-mount design make it suitable for consumer electronics, such as smart home devices, where space is limited and reliability is key.
• Telecommunications: The DS1557P-70IND+ can be used in telecommunication equipment for time synchronization and data backup, ensuring continuous operation and data integrity.

Conclusion of DS1557P-70IND+

The DS1557P-70IND+ is a versatile and reliable RTC and Calendar IC that offers a comprehensive set of features and functionalities. Its low power consumption, robust design, and compliance with industry standards make it an ideal choice for a wide range of applications. Whether used in embedded systems, industrial control, consumer electronics, or telecommunications, the DS1557P-70IND+ provides accurate timekeeping, reliable data storage, and additional functionalities such as alarms and watchdog timers. Its surface-mount design and compact size ensure easy integration into various systems, making it a standout choice in the market.

DS1557P-70IND+ Documents

Download datasheets and manufacturer documentation for DS1557P-70IND+

Datasheets :

DS1557      

Other Related Documents :

Tips for Writing Bulletproof Real-Time Clock Control Code      

Application Notes :

PowerCap Package Allows for Density Upgrades, Surface Mount Assembly       Using a Watchdog Timekeeping RAM with a Microcontroller       Design Considerations for Maxim Real-Time Clocks       Lithium Battery Content in Maxim Products      

Environmental Information :

Maxim Integrated RoHS Cert       Maxim Integrated REACH