Microchip Technology

MCP79402-I/ST  

Real Time Clocks ICs

MCP79402-I/ST Description

The MCP79402-I/ST is a highly integrated Real-Time Clock (RTC) and calendar IC designed by Microchip Technology. This device is ideal for applications requiring precise timekeeping and calendar functions. It features a robust set of functionalities, including alarm, leap year correction, square wave output, SRAM, and a unique ID. The MCP79402-I/ST operates within a wide supply voltage range of 1.8V to 5.5V and offers low power consumption, with a maximum timekeeping current of 1.2µA at 3.3V. The device is housed in an 8-pin TSSOP package and is available in a tube packaging format. It supports surface mount technology, making it suitable for automated assembly processes.

MCP79402-I/ST Features

The MCP79402-I/ST offers several unique features that set it apart from similar RTC ICs:

• Alarm Functionality: The MCP79402-I/ST includes an alarm feature that allows for precise scheduling and notification. This is particularly useful in applications requiring periodic wake-up or event triggering.
• Leap Year Correction: The device automatically adjusts for leap years, ensuring accurate date tracking over extended periods.
• Square Wave Output: This feature provides a stable clock signal, which can be used for synchronization purposes in various electronic systems.
• SRAM: The inclusion of 64 bytes of SRAM allows for additional data storage, enhancing the device's versatility.
• Unique ID: Each MCP79402-I/ST comes with a unique identification number, which can be used for device tracking and authentication.
• Wide Supply Voltage Range: The device operates within a wide voltage range of 1.8V to 5.5V, making it suitable for a variety of power supply conditions.
• Low Power Consumption: With a typical timekeeping current of 1.2µA at 3.3V, the MCP79402-I/ST is highly energy-efficient, making it ideal for battery-powered applications.
• Compliance and Safety: The MCP79402-I/ST is REACH unaffected and RoHS3 compliant, ensuring it meets environmental and safety standards.

MCP79402-I/ST Applications

The MCP79402-I/ST is well-suited for a variety of applications due to its comprehensive feature set and robust performance:

• Consumer Electronics: Ideal for devices such as digital clocks, smart home appliances, and portable electronics where accurate timekeeping and calendar functions are essential.
• Industrial Automation: Useful in systems requiring precise scheduling and event logging, such as PLCs and control systems.
• Telecommunications: Can be employed in network equipment for time synchronization and event logging.
• Medical Devices: Suitable for medical equipment that requires accurate timekeeping for monitoring and logging patient data.
• Automotive: Beneficial in automotive systems for timekeeping and event logging, such as in-vehicle infotainment systems and diagnostic tools.

Conclusion of MCP79402-I/ST

The MCP79402-I/ST is a versatile and reliable Real-Time Clock and calendar IC from Microchip Technology. Its wide range of features, including alarm functionality, leap year correction, and low power consumption, make it a standout choice for applications requiring precise timekeeping and calendar functions. The device's compliance with environmental and safety standards further enhances its appeal. Whether used in consumer electronics, industrial automation, or medical devices, the MCP79402-I/ST provides a robust solution for accurate and reliable timekeeping.

MCP79402-I/ST Documents

Download datasheets and manufacturer documentation for MCP79402-I/ST

DTS :

View in Development Tools Selector      

Errata :

MCP7940X Family Silicon Errata Document Revision (PDF)      

PCN :

Product Change Notification (PDF)