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Rochester Electronics DS12R887-5 Environmental and export classification status description

Overview of Maxim Integrated DS12R887-5 The DS12R887-5 is a real-time clock (RTC) integrated circuit from Maxim Integrated, specifically designed for low-power timekeeping applications. It keeps track of time and date and provides a reliable way to timestamp events in embedded systems. The DS12R887-5 is part of the DS12 series, which is known for its high accuracy and ability to operate over a wide voltage range. Functions The DS12R887-5 offers several key functions: 1. Real-Time Clock/Calendar: Maintains time in hours, minutes, seconds, and date (day, month, year). 2. Alarm Functionality: Can generate alarms to trigger interrupts or alerts based on set time conditions. 3. Battery Backup: Features a built-in battery backup capability to maintain time even when the main power supply is removed. 4. Interfacing: Utilizes a serial interface (I2C) for easy integration with microcontrollers and other devices. 5. Low Power Consumption: Designed for low power operation, making it suitable for battery-operated systems. Applications The DS12R887-5 is commonly used in a variety of applications, including: 1. Embedded Systems: In devices requiring timekeeping, such as microcontroller-based projects. 2. Smart Meters: For timestamping data and events related to energy consumption. 3. Industrial Control: In systems that require precise timing and scheduling operations. 4. Consumer Electronics: In devices like cameras and appliances that need real-time clocks for timestamping events. 5. Automotive Systems: For dashboard clocks and navigation systems. Alternative Components Some alternative components to the DS12R887-5 include: 1. DS1302: Another real-time clock from Maxim that offers similar functionality. 2. MCP7940N: A low-power RTC from Microchip with built-in EEPROM. 3. PCF8523: A real-time clock from NXP that communicates via I2C. 4. RTC-8564: Another real-time clock solution that offers a similar range of features. 5. ISL12020: A real-time clock from Renesas, equipped with low-power capabilities and I2C interface. Embedded Modules Embedded modules that use or can incorporate the DS12R887-5 include: 1. RTC Development Boards: Modules designed for quick prototyping that include the DS12R887-5 as the main IC. 2. Arduino RTC Shields: Expansion boards that feature the DS12R887-5 for use with Arduino platforms. 3. Raspberry Pi RTC HATs: Hardware Attached on Top (HAT) modules that integrate the DS12R887-5 for timekeeping in Raspberry Pi projects. 4. Microcontroller Development Kits: Kits that allow users to seamlessly integrate the DS12R887-5 into their designs for testing and development. Related Q&A 1. Q: What is the typical power consumption of the DS12R887-5? - A: The DS12R887-5 is designed for low power consumption, typically consuming a few microamperes in battery backup mode. 2. Q: How does the DS12R887-5 maintain time during power loss? - A: The DS12R887-5 includes an internal battery backup feature that keeps the clock running when the main supply voltage is lost. 3. Q: Can the DS12R887-5 interface with multiple devices? - A: Yes, the DS12R887-5 uses an I2C interface, enabling it to connect to multiple devices on the same bus. 4. Q: Is the DS12R887-5 accurate, and how is accuracy determined? - A: Yes, the DS12R887-5 has a high accuracy clock, with a typical drift of ±2 minutes per year, determined by the internal crystal oscillator. 5. Q: Can the DS12R887-5 be used in battery-operated devices? - A: Absolutely. Its low power consumption and battery backup capability make it ideal for battery-operated and portable devices. This overview provides a concise introduction to the DS12R887-5, detailing its functions, applications, alternatives, and embedded modules, along with some frequently asked questions to assist in understanding its capabilities.