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Analog Devices Inc./Maxim Integrated DS1286I Environmental and export classification status description

The DS1286I is a real-time clock (RTC) integrated circuit (IC) that includes a built-in battery backup, allowing it to keep track of time even when the main power supply is disconnected. It provides a serial interface for communication and is often used in applications that require precise timekeeping and power management. Functions: 1. Real-Time Clock (RTC): Maintains accurate time and date information. 2. Dual Timekeeping: Can track both standard time and a separate time zone, which is useful in applications requiring dual-time settings. 3. Battery Backup: Uses a battery to ensure timekeeping continues during power outages. 4. Alarm Functionality: Can generate alarm signals for specific time events. 5. Programmable Interrupts: Offers interrupt signals that can be triggered by certain conditions, such as time reaching a specified value. 6. Temperature Compensated Crystal Oscillator: Provides high stability and accuracy in timekeeping. Applications: 1. Embedded Systems: Used in microcontroller-based applications needing timekeeping. 2. Consumer Electronics: Employed in devices like cameras, digital clocks, and home appliances. 3. Automated Data Logging: Ideal for applications requiring time stamps, such as environmental monitoring. 4. Industrial Equipment: Utilized in machines that require precise operation schedules. 5. Telecommunications: Used in network devices where accurate time synchronization is crucial. Alternative Components: 1. MCP7940N: A low-power, I2C real-time clock from Microchip Technology that also features battery backup. 2. DS3231: A more advanced RTC from Maxim Integrated with high precision and temperature compensation. 3. PCF8523: A RTC from NXP Semiconductors that offers a variety of features and low power consumption. 4. RTC-8564: Another alternative with I2C interface for timekeeping. Embedded Modules: 1. RTC Breakout Modules: Several manufacturers offer breakout boards featuring the DS1286I or compatible RTC chips, enabling easy integration into projects. 2. Arduino RTC Shields: Shields compatible with Arduino that include RTC functionality, often featuring the DS3231 or similar RTC ICs. 3. Raspberry Pi RTC HATs: HATs (Hardware Attached on Top) with RTC functionality for Raspberry Pi devices, providing real-time clock features. Related Q&A: 1. Q: What is the primary advantage of using the DS1286I over a standard RTC chip? A: The DS1286I includes battery backup and advanced timekeeping features such as dual time zones and programmable interrupts, making it suitable for applications needing higher reliability and functionality. 2. Q: How does the battery backup feature work in the DS1286I? A: The DS1286I switches to battery power automatically when the main supply is disconnected, allowing it to maintain real-time clock functionality without interruption. 3. Q: Can the DS1286I be interfaced with microcontrollers? A: Yes, the DS1286I typically communicates via a serial interface (like SPI), making it compatible with a variety of microcontrollers. 4. Q: Is the DS1286I suitable for low-power applications? A: Yes, it is designed to operate with low power consumption, especially during battery mode, making it ideal for battery-operated devices. 5. Q: What is the typical accuracy of the DS1286I? A: The DS1286I has a typical accuracy specification depending on the operating conditions; it often achieves timekeeping within seconds per month, thanks to its temperature compensation. This encompasses the key aspects of the DS1286I IC, including a concise summary of its functions, applications, alternatives, and related queries.