The MCP79412-I/MS from Microchip Technology is a highly integrated Real-Time Clock/Calendar (RTCC) with additional advanced features such as EEPROM, unique ID, and digital trimming for precise timekeeping. This compact and efficient component is designed for applications that require accurate timekeeping and data storage without the need for an external battery.

Key Features

• Real-Time Clock/Calendar: Tracks time in hours, minutes, and seconds, as well as the day of the week, date, month, and year.
• Battery-Backed Operation: Includes a battery-backup input pin, which allows for continuous timekeeping even when the main power is lost.
• EEPROM Memory: Features 64 bytes of battery-backed SRAM and 1 Kbit of EEPROM, providing secure data storage with over 1 million erase/write cycles and 200-year data retention.
• Digital Trimming: Allows fine adjustment of the clock frequency to compensate for crystal variations and temperature drift, ensuring high accuracy.
• Unique ID: Comes with a factory-programmed, 64-bit unique ID that can be used for network node identification, inventory control, or as a MAC address.
• Communication Interface: Utilizes an I2C™ serial interface for communication, providing easy integration with a microcontroller or other I2C compatible devices.
• Package: Available in an 8-pin MSOP (Micro Small Outline Package) that is RoHS compliant and suitable for space-constrained applications.
• Versatile Power Supply: Supports a wide voltage range, typically from 1.8V to 5.5V, making it versatile for various system designs.

Applications

The MCP79412-I/MS is ideal for a broad range of applications, including but not limited to:

• Smart energy (smart meters, thermostats)
• Home appliances (microwaves, ovens)
• Automotive electronics
• Handheld electronics (GPS devices, fitness gadgets)
• Industrial and medical equipment
• Networking (routers, switches, servers)

Overall, the MCP79412-I/MS from Microchip Technology is a robust and reliable choice for systems that require accurate timekeeping, data storage, and unique device identification, all in a small form factor.