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DS1743W-150

DS1743W-150 Description

The DS1743W-150 is a high-performance Real Time Clock (RTC) and Calendar IC designed by Analog Devices Inc./Maxim Integrated. This device is part of the DS1743 family and is housed in a Through Hole 28-pin DIP package, making it suitable for a variety of embedded systems and industrial applications. The DS1743W-150 operates within a temperature range of 0°C to 70°C and is powered by a supply voltage between 2.97V and 3.63V. It features an 8KB Non-Volatile Static RAM (NVSRAM) for data storage, ensuring data integrity even during power loss.

DS1743W-150 Features

• Clock and Calendar Functionality: The DS1743W-150 provides accurate timekeeping with a time format of HH:MM:SS in a 24-hour format. It includes features such as Leap Year and Y2K compliance, ensuring reliable operation over extended periods.
• Non-Volatile Static RAM: The device integrates an 8KB NVSRAM, which allows for the storage of critical data that must be retained even when power is lost. This feature is particularly beneficial for applications requiring persistent data storage.
• Low Power Consumption: With a maximum timekeeping current of 2mA at 3.3V, the DS1743W-150 is designed for energy efficiency, making it suitable for battery-powered systems.
• Parallel Interface: The DS1743W-150 features a parallel interface, facilitating easy integration with microcontrollers and other system components.
• Moisture Sensitivity Level (MSL): The device has an MSL of 1 (Unlimited), indicating it is not sensitive to moisture, which is advantageous for applications in varying environmental conditions.
• Compliance and Standards: The DS1743W-150 is REACH Affected and classified under ECCN EAR99, ensuring compliance with international regulations.

DS1743W-150 Applications

The DS1743W-150 is ideal for a range of applications where accurate timekeeping and data storage are critical. Some specific use cases include:

• Embedded Systems: In embedded systems where precise time tracking and data retention are essential, the DS1743W-150 provides a reliable solution.
• Industrial Control: For industrial applications requiring robust timekeeping and data storage capabilities, the DS1743W-150’s NVSRAM and wide operating temperature range make it a suitable choice.
• Telecommunications: In telecom equipment where accurate time synchronization and data integrity are crucial, the DS1743W-150 can be integrated to ensure reliable operation.
• Consumer Electronics: For consumer electronics that require a calendar and clock function, the DS1743W-150 offers a compact and efficient solution.

Conclusion of DS1743W-150

The DS1743W-150 is a versatile and reliable Real Time Clock and Calendar IC that offers a combination of accurate timekeeping, robust data storage, and low power consumption. Its unique features, such as Leap Year and Y2K compliance, make it a superior choice over similar models. The device’s wide operating temperature range and moisture sensitivity level of 1 ensure it can be deployed in a variety of environments. While the DS1743W-150 is now considered obsolete, it remains a valuable component for legacy systems and applications where its specific features are required.