The MCP7940N-I/SN is an integrated circuit component manufactured by Microchip Technology. It is a real-time clock/calendar (RTC) with a built-in battery backup and I2C interface. This IC provides accurate timekeeping and calendar functionality, making it suitable for a wide range of applications in various industries.
Key features of the MCP7940N-I/SN include:
1. Real-Time Clock: The MCP7940N-I/SN incorporates an accurate timekeeping module that tracks seconds, minutes, hours, day, date, month, and year information. It offers a leap year compensation feature for accurate date calculations.
2. Battery Backup: To ensure continuous timekeeping, this IC features a built-in battery backup system. It utilizes a small external battery to provide backup power in case of a main power failure, allowing the clock and calendar to keep running.
3. Alarm and Timer Functionality: The MCP7940N-I/SN allows you to set alarms and timers for specific events or time intervals. It supports multiple alarms and can trigger interrupt outputs when an alarm condition occurs.
4. I2C Interface: The IC communicates with the host microcontroller using the I2C serial interface. This interface enables easy integration into various systems, making it compatible with a wide range of microcontrollers and other I2C devices.
5. Power-Saving Features: The MCP7940N-I/SN is designed to minimize power consumption
