Texas Instruments

BQ3287EAMT

BQ3287EAMT Description

The BQ3287EAMT is a Real Time Clock (RTC) IC designed by Texas Instruments, featuring a clock/calendar function with a wide range of capabilities. This IC operates within a temperature range of 0°C to 70°C, making it suitable for various industrial and commercial applications. It is powered by a supply voltage of 4.5V to 5.5V, ensuring reliable performance across different power conditions. The BQ3287EAMT is housed in a through-hole package, specifically a 24-pin DIP (Dual In-line Package), which facilitates easy integration into printed circuit boards.

This RTC IC includes 242 bytes of non-volatile static RAM (NVSRAM), providing ample space for data storage that persists even when power is lost. The BQ3287EAMT supports both 12-hour and 24-hour time formats, displayed as HH:MM:SS, offering flexibility in time representation. It also features a parallel interface, allowing for straightforward communication with other system components.

BQ3287EAMT Features

The BQ3287EAMT boasts several advanced features that set it apart from other RTC ICs. It includes an alarm function, enabling precise scheduling of events. The Daylight Savings feature automatically adjusts the time to account for seasonal time changes, reducing the need for manual adjustments. The Leap Year feature ensures accurate date calculations over extended periods, maintaining the calendar's integrity.

Additionally, the BQ3287EAMT provides a square wave output, which can be used for various timing applications. The device is REACH unaffected and RoHS3 compliant, adhering to stringent environmental and safety standards. It is also classified under ECCN EAR99 and HTSUS 8542.39.0001, facilitating compliance with international trade regulations.

BQ3287EAMT Applications

The BQ3287EAMT is ideal for applications requiring precise timekeeping and data storage. Its robust features make it suitable for industrial control systems, where accurate time tracking and event scheduling are crucial. The IC's NVSRAM capability is particularly beneficial for embedded systems that need to store critical data without the risk of loss due to power outages.

In consumer electronics, the BQ3287EAMT can be used in devices such as digital clocks, home automation systems, and smart meters. Its ability to handle Daylight Savings and Leap Year adjustments ensures that these devices remain accurate over time. The square wave output can be utilized in timing circuits, further expanding its application scope.

Conclusion of BQ3287EAMT

The BQ3287EAMT from Texas Instruments is a versatile RTC IC with a comprehensive set of features tailored for reliable timekeeping and data storage. Its robustness, combined with advanced functionalities like alarm, Daylight Savings, and Leap Year adjustments, makes it a valuable component for a wide range of applications. Despite being marked as obsolete, the BQ3287EAMT remains a reliable choice for systems requiring precise and persistent time management. Its compliance with environmental and safety standards ensures that it meets the demands of modern electronics manufacturing.