Texas Instruments

BQ3285S-SB2TR

BQ3285S-SB2TR Description

The BQ3285S-SB2TR is a highly integrated Real-Time Clock (RTC) and Calendar IC designed by Texas Instruments. This device offers a comprehensive set of features tailored for applications requiring precise timekeeping and data storage. The BQ3285S-SB2TR is housed in a 24-pin SOIC package and is available in a Tape & Reel (TR) format, making it suitable for surface mount applications. It operates within a supply voltage range of 4.5V to 5.5V and can function with a battery backup voltage between 2.5V and 4V. The device supports a wide operating temperature range from 0°C to 70°C, ensuring reliable performance in various environmental conditions.

BQ3285S-SB2TR Features

The BQ3285S-SB2TR boasts several advanced features that set it apart from other RTC solutions:

• Alarm Functionality: The device includes an alarm feature that can be programmed to trigger at specific times, providing a reliable and precise timing mechanism for various applications.
• Daylight Savings and Leap Year Support: The BQ3285S-SB2TR automatically adjusts for daylight savings and leap years, ensuring accurate timekeeping without manual intervention.
• NVSRAM: The device features 114 bytes of non-volatile static RAM (NVSRAM), allowing for the storage of critical data even when power is lost.
• Square Wave Output: The BQ3285S-SB2TR provides a square wave output, which can be used for clocking other devices or for synchronization purposes.
• Parallel Interface: The device communicates via a parallel interface, offering high-speed data transfer capabilities.
• Time Format: The BQ3285S-SB2TR supports both 12-hour and 24-hour time formats, providing flexibility in time display and user interface design.
• Compliance and Standards: The BQ3285S-SB2TR is REACH unaffected and ROHS3 compliant, ensuring it meets the latest environmental and safety standards.

BQ3285S-SB2TR Applications

The BQ3285S-SB2TR is ideal for a variety of applications where accurate timekeeping and data storage are crucial:

• Embedded Systems: The device is well-suited for embedded systems that require reliable timekeeping and data retention, such as industrial controllers, medical devices, and smart meters.
• Consumer Electronics: The BQ3285S-SB2TR can be used in consumer electronics like digital cameras, gaming consoles, and smart home devices, where precise timekeeping and data storage are essential.
• Telecommunications: The device's robust features make it suitable for telecommunications equipment, where accurate time synchronization is required for network operations.
• Automotive: The BQ3285S-SB2TR can be used in automotive applications, such as infotainment systems and onboard diagnostics, where reliable timekeeping and data storage are critical.

Conclusion of BQ3285S-SB2TR

The BQ3285S-SB2TR from Texas Instruments is a versatile and reliable RTC and Calendar IC that offers a comprehensive set of features for precise timekeeping and data storage. Its support for daylight savings and leap years, along with its NVSRAM and square wave output, make it a robust solution for a wide range of applications. The device's compliance with environmental and safety standards ensures it meets the latest industry requirements. While the BQ3285S-SB2TR is marked as obsolete, it remains a valuable component for legacy systems and applications that require its unique features and performance benefits.