The MCP79402-I/ST from Microchip Technology is a highly integrated Real-Time Clock/Calendar (RTCC) optimized for time tracking and data logging solutions. This compact, feature-rich component is designed for a broad array of applications ranging from smart energy and utility metering to industrial and consumer electronics.

Key Features

• Accurate Timekeeping: With a built-in digital trimming circuit, the MCP79402-I/ST maintains accurate timekeeping to compensate for crystal inaccuracies, ensuring precise time and date information.
• Battery Backup: The device includes a battery backup input, allowing for continuous timekeeping even when the primary power source fails. This feature is essential for maintaining the integrity of time-dependent processes and logs.
• EEPROM Memory: Equipped with 64 bytes of battery-backed SRAM and 1 Kbit of EEPROM, the MCP79402-I/ST provides secure and reliable storage for critical data that must be preserved during power loss.
• Alarm Function: Dual programmable alarms can be set to trigger on a minute, hour, day, or date basis, offering flexibility and precision for various timing-related tasks.
• Communication: The device supports I2C communication, enabling easy integration with microcontrollers and other digital systems for configuration and data retrieval.
• Extended Temperature Range: This RTCC operates over an industrial temperature range, making it suitable for environments that experience wide temperature variations.

Applications

The MCP79402-I/ST is ideal for applications where accurate timekeeping is crucial, including:

• Smart energy meters
• Industrial time and date stamping
• Consumer electronics
• Home automation systems
• Data loggers

Package and Availability

The MCP79402-I/ST is offered in a TSSOP-8 package, providing a compact solution that is both space-efficient and highly functional. Contact Microchip Technology or an authorized distributor for pricing and availability information.