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Texas Instruments BQ3287EAMT Environmental and export classification status description

The BQ3287EAMT is a low-power, full binary-coded decimal (BCD) real-time clock (RTC) module with an integrated crystal oscillator and RAM. It provides timing and calendar functions and is designed to be used in a wide range of applications requiring accurate time-keeping. The module operates from a 3V power supply and comes in a small 24-pin SOIC package. Functions: - Real-Time Clock: The BQ3287EAMT includes a built-in clock that tracks seconds, minutes, hours, days, months, and years. - Calendar Functions: It also provides calendar functions, including day of the week, leap year, and daylight saving support. - Alarm Functions: The module supports multiple programmable alarms with configurable interrupt output. - Integrated Crystal Oscillator: It contains an ultra-low power oscillator circuit designed for precise timekeeping. - RAM: The BQ3287EAMT has integrated battery-backed RAM for storing user data. Applications: Due to its accurate timekeeping and calendar functionality, the BQ3287EAMT can be used in various applications, including but not limited to: 1. Smartwatches and wearables 2. Digital clocks and alarm systems 3. Electronic calendars and organizers 4. Industrial automation and control systems 5. Medical equipment. Alternative Components: Some alternative RTC modules that can be considered as alternatives to the BQ3287EAMT are: 1. Maxim DS1307: This RTC module offers similar features and operates at a low power supply voltage. 2. NXP PCF8563: It is a highly integrated real-time clock/calendar module with I2C interface and low power consumption. 3. STMicroelectronics M41T00: This module is capable of time and calendar functions with a battery backup option and operates at a low voltage. Embedded Modules: The BQ3287EAMT can be used in conjunction with various embedded modules to provide additional functionalities or enhance its performance in specific applications. Some embedded modules that can be used with the BQ3287EAMT include: 1. Microcontrollers (MCUs): MCUs can be used to interface with the BQ3287EAMT for advanced control and processing capabilities. 2. Interfaces: Serial communication interfaces such as I2C or SPI can be used to connect the BQ3287EAMT to other components or systems. 3. Sensors: Additional sensors like temperature, humidity, or ambient light sensors can be integrated to enhance the module's capabilities. 4. Display modules: Modules with LCD or OLED displays can be added to provide visual representation of time and calendar information. Related Q&A: 1. Q: Can the BQ3287EAMT keep track of time without a power supply? A: No, the module requires a power supply to operate. However, it has an integrated battery-backed RAM that can retain the time and date information when the power is disconnected. 2. Q: What is the accuracy of the BQ3287EAMT? A: The module offers typical timekeeping accuracy of ±2 minutes per month at room temperature. 3. Q: Is the BQ3287EAMT capable of handling leap year calculations? A: Yes, the module has built-in leap year calculation and provides accurate day, month, and year information. 4. Q: Can I program multiple alarms with the BQ3287EAMT? A: Yes, the module supports multiple alarms and provides a configurable interrupt output for each alarm. 5. Q: What is the power supply voltage range for the BQ3287EAMT? A: The module operates from a 3V power supply range, making it suitable for battery-powered applications.