Microchip Technology

MCP79521T-I/MS  

Real Time Clocks ICs

MCP79521T-I/MS Description

The MCP79521T-I/MS is a highly integrated Real Time Clock (RTC) and Calendar IC designed by Microchip Technology. This surface-mount device is packaged in a Tape & Reel (TR) format, making it ideal for automated assembly processes. The MCP79521T-I/MS operates within a supply voltage range of 1.8V to 3.6V and features a maximum timekeeping current of 1µA, ensuring low power consumption and extended battery life. It supports both 12-hour and 24-hour time formats, providing flexibility in time display options.

MCP79521T-I/MS Features

The MCP79521T-I/MS offers a comprehensive set of features that set it apart from similar RTC ICs. Key features include:

• Alarm Functionality: The built-in alarm allows for precise scheduling and timing applications, making it suitable for systems requiring periodic wake-up or event triggering.
• EEPROM Memory: With 64 bytes of EEPROM memory, the device can store critical data, ensuring data retention even during power loss.
• Leap Year Calculation: The calendar function automatically accounts for leap years, ensuring accurate date tracking over extended periods.
• Square Wave Output: This feature enables the generation of a precise square wave signal, useful for clock synchronization and timing applications.
• SRAM: The device includes SRAM for temporary data storage, enhancing its versatility in various applications.
• Unique ID: Each MCP79521T-I/MS comes with a unique identifier, facilitating device tracking and management in complex systems.
• SPI Interface: The SPI interface ensures seamless communication with microcontrollers and other system components, simplifying integration into existing designs.

MCP79521T-I/MS Applications

The MCP79521T-I/MS is well-suited for a wide range of applications where accurate timekeeping and data storage are essential. Specific use cases include:

• Consumer Electronics: Ideal for devices such as digital clocks, smart home appliances, and wearable technology where precise timekeeping and data retention are crucial.
• Industrial Automation: Useful in systems requiring scheduled maintenance, event logging, and real-time monitoring, such as PLCs and SCADA systems.
• Medical Devices: Suitable for medical equipment that requires accurate time tracking and data logging, such as patient monitoring systems and diagnostic devices.
• Automotive Systems: Beneficial in applications like infotainment systems, telematics, and onboard diagnostics where reliable timekeeping and data storage are necessary.
• IoT Devices: Perfect for IoT applications where devices need to maintain accurate time and store configuration or operational data.

Conclusion of MCP79521T-I/MS

The MCP79521T-I/MS from Microchip Technology is a robust and versatile RTC and Calendar IC that offers a comprehensive set of features tailored to meet the demands of modern electronic systems. Its low power consumption, extensive memory options, and advanced timekeeping capabilities make it an ideal choice for a variety of applications across different industries. The inclusion of unique features such as the alarm function, EEPROM, and unique ID further enhance its utility and reliability. Whether used in consumer electronics, industrial automation, medical devices, automotive systems, or IoT applications, the MCP79521T-I/MS provides a reliable and efficient solution for accurate timekeeping and data management.

MCP79521T-I/MS Documents

Download datasheets and manufacturer documentation for MCP79521T-I/MS

Datasheets :

MCP7951x/2x      

PCN Packaging :

Packing Changes 10/Oct/2016       Label and Packing Changes 23/Sep/2015      

PCN Design/Specification :

MCP7951X/MCP7952X 03/Mar/2018       MCP7951x/MCP7952x Datasheet 23/Nov/2023      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH