Analog Devices Inc./Maxim Integrated

DS14285  

Real Time Clocks ICs

DS14285 Description

The DS14285 is a Real Time Clock (RTC) and Calendar IC designed by Analog Devices Inc./Maxim Integrated. This component is a highly reliable and versatile solution for applications requiring accurate timekeeping and calendar functions. The DS14285 operates within a temperature range of 0°C to 70°C, making it suitable for a wide range of environments. It features a parallel interface, allowing for efficient communication with other system components. The DS14285 is housed in a through-hole package, specifically a 24-pin DIP (Dual In-line Package), which ensures robust mechanical stability and ease of integration into various electronic systems.

The DS14285 is powered by a supply voltage ranging from 4.5V to 5.5V, with a maximum timekeeping current of 0.5µA, ensuring low power consumption and extended battery life. Additionally, it supports a backup battery supply voltage between 2.5V and 3.6V, providing continuous operation even during power outages. The device includes 114 bytes of non-volatile static RAM (NVSRAM), offering ample storage for critical data that needs to be retained across power cycles.

DS14285 Features

The DS14285 stands out with several unique features that enhance its functionality and reliability:

• Alarm Functionality: The DS14285 includes an alarm feature that can be programmed to trigger at specific times, making it ideal for applications requiring scheduled events or reminders.
• Daylight Savings and Leap Year Support: The DS14285 automatically adjusts for Daylight Savings Time and Leap Year, ensuring accurate timekeeping throughout the year without manual intervention.
• Square Wave Output: The DS14285 provides a square wave output, which can be used for clock synchronization or other timing applications.
• Non-Volatile Static RAM (NVSRAM): The 114 bytes of NVSRAM allow for the storage of important data that must be retained even when the power is off, providing a reliable solution for data integrity.
• Time Format Flexibility: The DS14285 supports both 12-hour and 24-hour time formats, offering flexibility to meet different user preferences and application requirements.

DS14285 Applications

The DS14285 is well-suited for a variety of applications where accurate timekeeping and calendar functions are essential:

• Embedded Systems: Ideal for embedded systems that require precise timekeeping and calendar functions, such as industrial controllers, medical devices, and smart meters.
• Consumer Electronics: Suitable for consumer electronics like digital clocks, home automation systems, and smart appliances that need reliable time and date tracking.
• Telecommunications: Can be used in telecommunication equipment for logging events and maintaining accurate time records.
• Automotive: The DS14285 can be integrated into automotive systems for time-sensitive applications, such as event logging and maintenance scheduling.

Conclusion of DS14285

The DS14285 is a robust and feature-rich Real Time Clock and Calendar IC that offers a comprehensive solution for accurate timekeeping and data storage. Its low power consumption, extensive feature set, and reliable performance make it an excellent choice for a wide range of applications. Although the DS14285 is now considered obsolete, its legacy continues to be a testament to Analog Devices Inc./Maxim Integrated's commitment to delivering high-quality and reliable solutions for the electronics industry.

DS14285 Documents

Download datasheets and manufacturer documentation for DS14285

Datasheets :

DS14285, 87      

Application Notes :

Selecting a Backup Source for Real-Time Clocks      

Environmental Information :

Maxim Integrated RoHS Cert       Maxim Integrated REACH