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DS1689SN

DS1689SN Description

The DS1689SN is a Real-Time Clock (RTC) and Calendar IC designed by Analog Devices Inc./Maxim Integrated. This component is ideal for applications requiring precise timekeeping and data storage. It features a clock/calendar function with a time format of HH:MM:SS, available in both 12-hour and 24-hour formats. The DS1689SN is equipped with a Non-Volatile Static Random Access Memory (NVSRAM) that provides 114 bytes of memory, ensuring data retention even during power loss.

The DS1689SN operates over a wide voltage range, supporting both 2.7V to 3.3V and 4.5V to 5.5V supply voltages. It also includes a battery backup input with a voltage range of 2.5V to 3.7V, ensuring continuous operation during power interruptions. The maximum timekeeping current is 2mA at 3V and 3mA at 5V, making it suitable for low-power applications.

The DS1689SN is housed in a 28-pin SOIC package and is available in a tube packaging format. It features a parallel interface for easy integration into various systems. The component is classified under ECCN EAR99 and HTSUS 8542.39.0001, and it is REACH unaffected. The DS1689SN has a moisture sensitivity level (MSL) of 1, indicating it is not moisture-sensitive and can be stored without special precautions.

DS1689SN Features

• Clock/Calendar Functionality: Provides accurate timekeeping with a format of HH:MM:SS in both 12-hour and 24-hour formats.
• NVSRAM: 114 bytes of non-volatile memory ensure data retention during power loss.
• Wide Voltage Range: Operates with supply voltages of 2.7V to 3.3V and 4.5V to 5.5V, and a battery backup input range of 2.5V to 3.7V.
• Low Power Consumption: Maximum timekeeping current of 2mA at 3V and 3mA at 5V, ideal for low-power applications.
• Parallel Interface: Facilitates easy integration into various electronic systems.
• Surface Mount Technology: Suitable for modern, compact designs.
• Moisture Sensitivity Level 1: Ensures reliability and ease of handling without special moisture protection.

DS1689SN Applications

The DS1689SN is well-suited for a variety of applications where precise timekeeping and reliable data storage are essential. Some specific use cases include:

• Embedded Systems: Provides accurate timekeeping and data storage for embedded devices.
• Industrial Control Systems: Ensures reliable operation and data integrity in industrial environments.
• Telecommunications: Maintains accurate timekeeping for network synchronization and logging.
• Consumer Electronics: Ideal for devices requiring precise timekeeping and non-volatile memory, such as digital clocks and smart meters.
• Medical Devices: Ensures accurate timekeeping and data retention for critical medical applications.

Conclusion of DS1689SN

The DS1689SN is a robust Real-Time Clock and Calendar IC that offers precise timekeeping and reliable data storage. Its wide voltage range, low power consumption, and NVSRAM make it an ideal choice for a variety of applications. The parallel interface and surface mount technology ensure easy integration into modern electronic systems. Despite being marked as obsolete, the DS1689SN remains a reliable option for applications requiring accurate timekeeping and data retention.