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Microchip Technology MCP795W12-I/ST Environmental and export classification status description

The Microchip MCP795W12-I/ST is a low-power real-time clock/calendar (RTCC) integrated circuit (IC) that provides accurate timekeeping and calendar functions for various applications. It operates on a wide voltage range of 1.8V to 5.5V and is capable of operating in either 12-hour or 24-hour format. Functions: 1. Real-Time Clock: The MCP795W12-I/ST can keep track of time accurately with seconds, minutes, hours, day, date, month, and year information. It also accounts for leap years. 2. Alarm: It supports programmable alarms for specific events or time intervals, triggering an interrupt, and waking up a microcontroller or other devices. 3. Battery Backup: The IC is equipped with a battery backup source, ensuring that timekeeping functions remain active even during power interruptions. 4. Digital Trimming: The MCP795W12-I/ST allows fine-tuning of the clock frequency using the digital trimming feature, ensuring accurate timekeeping. 5. Timestamping: It can generate timestamps for events or data that require time reference, offering precise event logging capabilities. Applications: 1. Consumer Electronics: The MCP795W12-I/ST can be used in devices like smartwatches, fitness trackers, IoT devices, digital cameras, and other consumer electronics that require accurate timekeeping functionality. 2. Industrial Systems: It finds applications in industrial automation, data loggers, power meters, and other systems that require precise timekeeping for controlling and synchronizing processes. 3. Medical Devices: It can be utilized in medical devices such as patient monitoring systems, infusion pumps, and diagnostic equipment that require accurate timing and scheduling. Alternative Components: Some alternative real-time clock/calendar ICs include: 1. Maxim DS3231 - A highly accurate real-time clock with temperature compensation and two programmable time-of-day alarms. 2. NXP PCF8563 - A low-power real-time clock/calendar IC with an alarm function and a timer dedicated to battery backup applications. 3. Maxim DS1307 - A popular real-time clock IC with 56 bytes of non-volatile RAM and a built-in 64-bit unique ID. Embedded Modules: Microchip also offers various development boards and modules that incorporate the MCP795W12-I/ST. These modules are designed to simplify the integration and development process, providing additional features and functionalities. Some examples include: 1. PIC18F97J94 Development Board - This development board features the MCP795W12-I/ST IC along with a microcontroller, allowing developers to evaluate and test the real-time clock functionalities in conjunction with other features. 2. Curiosity Development Board - This versatile development board supports various PIC microcontrollers, including those compatible with the MCP795W12-I/ST IC. It offers a flexible platform for prototyping and development. 3. PICtail Plus Real-Time Clock Daughter Board - This daughter board is compatible with the Explorer 16 Development Board and incorporates the MCP795W12-I/ST IC. It provides an easy way to evaluate and integrate the real-time clock functionality into project designs. Related Q&A: 1. Q: How accurate is the MCP795W12-I/ST's timekeeping capability? A: The MCP795W12-I/ST has a typical time accuracy of ±2 minutes per month. However, this can vary based on factors like temperature and supply voltage. 2. Q: What is the power consumption of the MCP795W12-I/ST IC? A: The IC has low power consumption with typical values of 600nA in battery backup mode and 450µA in active mode. 3. Q: Can the MCP795W12-I/ST be used with a 3.3V microcontroller? A: Yes, the MCP795W12-I/ST supports a wide voltage range of 1.8V to 5.5V, making it compatible with 3.3V microcontrollers. 4. Q: Does the MCP795W12-I/ST support synchronization with an external time source? A: The MCP795W12-I/ST does not have built-in synchronization capabilities. Synchronization would require external circuitry or software implementation. 5. Q: Can the MCP795W12-I/ST be used in battery-operated devices? A: Yes, the IC has a dedicated battery backup source to ensure accurate timekeeping during power interruptions in battery-operated devices.