The MCP79402-I/SN from Microchip Technology is a highly integrated Real-Time Clock/Calendar (RTCC) optimized for time tracking and data logging with a minimal power footprint. This component is ideal for a variety of applications ranging from embedded systems to consumer electronics that require accurate timekeeping and a battery backup to maintain timekeeping during power loss.

Key Features

• Battery-Backed Operation: Includes a digital trimming circuit for frequency adjustment and a battery switchover circuit for reliable timekeeping and extended battery life.
• EEPROM Memory: Comes with 64 Bytes of EEPROM and additional 1 Kbit of EEPROM, which provides robust data storage with unlimited write endurance and a data retention period of over 200 years.
• Unique ID: Contains a factory-programmed, globally unique MAC address, providing a convenient solution for Ethernet, Wi-Fi, and Bluetooth applications requiring unique network identities.
• Timekeeping: Features include seconds through years with leap year compensation, 24-hour or 12-hour formats with AM/PM indicators, and two programmable alarms.
• Communication: Utilizes an I2C interface for communication, allowing for easy integration into existing systems.
• Power Management: Low current consumption and a wide voltage range, making it suitable for battery-powered applications.

Applications

The MCP79402-I/SN is versatile and can be used in various applications such as:

• Smart energy and metering
• Home appliances
• Automotive electronics
• Handheld devices
• Industrial control systems

Technical Specifications

The device operates within an industrial temperature range of -40°C to +85°C and comes in an 8-pin SOIC package. It is designed for 3.3V to 5V operating voltage, making it suitable for a range of power environments.

Ordering Information

The MCP79402-I/SN is available for order from Microchip Technology and its authorized distributors. For detailed specifications, application notes, and additional resources, please refer to the official Microchip Technology website or contact their sales team.