The MCP79400T-I/MNY is a highly integrated Real-Time Clock/Calendar (RTCC) from Microchip Technology, designed for effective time tracking and control in a wide array of electronic applications. Its compact surface-mount package and low power consumption make it an ideal choice for space-constrained designs that require accurate timekeeping, such as handheld devices, smart meters, and IoT products.

Key Features:

• Accuracy: The device maintains an accurate clock/calendar functionality with leap year compensation valid up to 2399, ensuring precise timekeeping over extended periods.
• Battery Backup: It includes an integrated battery backup input pin and automatic switchover to the battery when primary power is lost, preserving timekeeping and device settings.
• Memory: The MCP79400T-I/MNY offers 64 Bytes of battery-backed SRAM and 1 Kbit of EEPROM, providing storage for critical data that must be preserved during power loss.
• Alarm Function: Equipped with versatile alarm settings, it can generate alarms on a per-minute, hourly, daily, or weekly basis, offering flexibility for various application needs.
• Digital Trimming: Digital trimming capability is included to compensate for crystal tolerance and temperature, ensuring higher time accuracy.
• Communication: The device supports I2C communication interface for easy integration into existing designs and for communication with microcontrollers and other digital systems.
• Temperature Range: It operates over an industrial temperature range of -40°C to +85°C, suitable for harsh environments.
• Package: Available in a compact 8-pin TSSOP or SOIC package, it is designed to occupy minimal board space.

Applications:

The MCP79400T-I/MNY is versatile enough to be used in various applications where accurate timekeeping is essential. These include but are not limited to:

• Smart energy meters
• Industrial timers and sensors
• Consumer electronics
• Automotive systems
• IoT devices

With its robust feature set and Microchip's reputation for reliability, the MCP79400T-I/MNY is a go-to solution for designers looking to incorporate precise time and date functionality into their systems.