Texas Instruments

BQ3285P-SB2E3

BQ3285P-SB2E3 Description

The BQ3285P-SB2E3 is a highly reliable and feature-rich Real Time Clock (RTC) IC designed by Texas Instruments. This clock/calendar IC is equipped with a parallel interface and is housed in a 24-pin DIP package. It operates within a supply voltage range of 4.5V to 5.5V and can be powered by a backup battery with a voltage range of 2.5V to 4V. The BQ3285P-SB2E3 is designed for through-hole mounting, making it suitable for applications requiring robust mechanical stability and ease of integration into existing systems.

This RTC IC offers a memory size of 114 bytes, providing ample space for storing critical data. It supports both 12-hour and 24-hour time formats, ensuring flexibility in various applications. The operating temperature range of 0°C to 70°C makes it suitable for a wide range of environments, from typical office settings to industrial applications.

BQ3285P-SB2E3 Features

The BQ3285P-SB2E3 boasts several advanced features that set it apart from similar models in the market:

• Alarm Functionality: The alarm feature allows users to set specific times for triggering events, making it ideal for applications requiring precise scheduling.
• Daylight Savings and Leap Year Support: These features ensure accurate timekeeping throughout the year, automatically adjusting for daylight savings and leap years.
• NVSRAM: The Non-Volatile Static Random Access Memory (NVSRAM) ensures data retention even when power is lost, providing a reliable backup solution.
• Square Wave Output: This feature enables the generation of precise timing signals, which can be used for synchronization in various electronic systems.
• Parallel Interface: The parallel interface facilitates high-speed data transfer, making it suitable for applications requiring rapid communication between the RTC and other system components.

BQ3285P-SB2E3 Applications

The BQ3285P-SB2E3 is ideal for a variety of applications, including:

• Industrial Control Systems: Its robust design and wide operating temperature range make it suitable for industrial environments where precise timekeeping and data retention are crucial.
• Telecommunications: The alarm and square wave output features are beneficial for scheduling maintenance and synchronization tasks in telecommunication networks.
• Medical Equipment: The NVSRAM and reliable timekeeping capabilities ensure that critical data is preserved and accurate, making it suitable for medical devices that require precise time tracking.
• Consumer Electronics: The BQ3285P-SB2E3 can be used in consumer electronics such as digital clocks, home automation systems, and other devices that require accurate timekeeping and data storage.

Conclusion of BQ3285P-SB2E3

The BQ3285P-SB2E3 from Texas Instruments is a versatile and reliable RTC IC that offers a comprehensive set of features tailored for various applications. Its support for alarm functions, daylight savings, leap year, NVSRAM, and square wave output makes it a powerful solution for precise timekeeping and data retention. Despite being marked as obsolete, the BQ3285P-SB2E3 remains a valuable component for systems requiring robust and accurate time management. Its compatibility with a wide range of operating temperatures and supply voltages ensures that it can be integrated into diverse environments with ease. For applications demanding reliable timekeeping and data storage, the BQ3285P-SB2E3 stands out as a robust and feature-rich option.