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Microchip Technology MCP79412T-I/SN Environmental and export classification status description

Overview of Microchip Technology MCP79412T-I/SN The Microchip MCP79412T-I/SN is a real-time clock (RTC) with a battery-backed SRAM and several programmable features, designed for low-power applications in various devices. It provides reliable timekeeping, maintains accurate time even during power outages, and integrates multiple functionality into a single chip. Key Functions of MCP79412T-I/SN 1. Real-Time Clock (RTC): Maintains precise time and date through battery backup. 2. Battery Backup: Utilizes a backup battery to maintain functionality when the main power is unavailable. 3. User-Programmable Alarm: Generates interrupts for specific times, enabling events to occur. 4. Programmable Output: Can output a square wave or an interrupt signal on a pin. 5. I2C Interface: Communicates with microcontrollers and digital systems using the I2C protocol. 6. Integrated SRAM: Provides up to 64 bytes of user RAM for temporary storage. Applications The MCP79412T-I/SN can be employed in various applications such as: 1. Consumer Electronics: Used in devices like clocks, handheld electronics, and appliances requiring timekeeping. 2. Industrial Controls: Provides reliable timing for automation and monitoring systems. 3. Smart Meters: Frequently used in energy monitoring devices to timestamp data readings. 4. Network Equipment: Maintains time synchronization in routers and switches. 5. Medical Devices: Ensures accurate timing in patient monitoring and medical data logging. Alternative Components Several alternative components provide similar functionalities and can be considered based on the application and design requirements: 1. MCP79410: A simpler RTC without SRAM but with an integrated oscillator and calendar function. 2. DS3231: A more accurate RTC with temperature-compensated timekeeping and I2C interface. 3. MCP79411: Offers timekeeping features but may lack some advanced capabilities of the MCP79412. 4. PCF8523: Another alternative RTC with a wide voltage range and low power consumption. Embedded Modules Embedded modules that utilize the MCP79412 include: 1. RTC Modules for Arduino: Popular kits that integrate MCP79412, allowing hobbyists to easily incorporate timekeeping into Arduino projects. 2. Raspberry Pi RTC Module: Expansion boards that use MCP79412 to add real-time clock functionality to Raspberry Pi systems. 3. IoT Development Boards: Boards for smart devices that need timekeeping as part of their functionality. Related Q&A 1. Q: How is the timekeeping accuracy of the MCP79412T-I/SN? A: The MCP79412T-I/SN maintains accuracy within ±2 minutes per month at 25°C and provides a stable clock through a temperature-compensated crystal oscillator. 2. Q: What is the maximum supply voltage for the MCP79412T-I/SN? A: The MCP79412 operates with a supply voltage range of 1.8V to 5.5V, making it suitable for low-voltage applications. 3. Q: Can the MCP79412 provide an interrupt signal? A: Yes, the MCP79412 can generate interrupt signals based on programmable alarms or specific conditions, which can be utilized in controlling or alerting systems. 4. Q: Is the MCP79412T-I/SN suitable for battery-powered devices? A: Yes, the MCP79412 is designed for low power consumption, and its battery backup feature makes it ideal for battery-operated applications. 5. Q: What communication interface does the MCP79412T-I/SN use? A: The MCP79412 communicates via the I2C interface, allowing for easy integration with various microcontrollers and digital systems.