Texas Instruments

BQ4802YPWR

BQ4802YPWR Description

The BQ4802YPWR is a highly integrated Real-Time Clock (RTC) and calendar IC designed by Texas Instruments. This device is part of the Clock/Timing ICs category and is housed in a 28-TSSOP package. It features a parallel interface and operates within a supply voltage range of 4.5V to 5.5V. The BQ4802YPWR is designed for surface-mount applications and is suitable for operating temperatures between 0°C and 70°C. This IC is classified under ECCN EAR99 and HTSUS 8542.39.0001, and it is REACH unaffected and ROHS3 compliant. The BQ4802YPWR is currently marked as obsolete by the manufacturer, Texas Instruments.

BQ4802YPWR Features

The BQ4802YPWR offers a comprehensive set of features that make it a versatile solution for timekeeping applications. Key features include:

• Alarm Functionality: The BQ4802YPWR supports an alarm feature that allows users to set specific times for alerts or actions.
• Daylight Savings and Leap Year Compensation: This IC automatically adjusts for daylight savings and leap years, ensuring accurate timekeeping over extended periods.
• Supervisor and Watchdog Timer: The built-in supervisor and watchdog timer functions provide additional reliability and fault detection capabilities.
• Time Format Flexibility: The BQ4802YPWR supports both 12-hour and 24-hour time formats, offering flexibility to meet various user preferences.
• Low Power Consumption: With a typical timekeeping current of 1.5mA at 4.5V to 5.5V, the BQ4802YPWR is designed for low power consumption, making it suitable for battery-backed applications.
• Battery Backup Voltage Range: The IC supports a battery backup voltage range of 2.4V to 4V, ensuring continuous operation during power outages.

BQ4802YPWR Applications

The BQ4802YPWR is ideal for a variety of applications where accurate timekeeping and calendar functions are essential. Specific use cases include:

• Embedded Systems: The BQ4802YPWR can be integrated into embedded systems to provide reliable timekeeping and calendar functions.
• Consumer Electronics: Devices such as digital clocks, alarm clocks, and other consumer electronics can benefit from the BQ4802YPWR's accurate timekeeping and alarm features.
• Industrial Applications: The IC's robustness and reliability make it suitable for industrial applications where precise timekeeping is required.
• Battery-Backed Systems: The low power consumption and battery backup capabilities make the BQ4802YPWR ideal for systems that require continuous operation even during power failures.

Conclusion of BQ4802YPWR

The BQ4802YPWR from Texas Instruments is a versatile and reliable RTC and calendar IC with a comprehensive set of features. Its low power consumption, alarm functionality, and support for daylight savings and leap year compensation make it a valuable component for various applications. Despite being marked as obsolete, the BQ4802YPWR remains a robust solution for applications requiring accurate timekeeping and calendar functions. Its compatibility with both 12-hour and 24-hour time formats, along with its supervisor and watchdog timer features, further enhance its utility in a wide range of electronic systems.