Microchip MCP79400T-I/ST Real-Time Clock/Calendar

The Microchip MCP79400T-I/ST is a highly integrated Real-Time Clock/Calendar (RTCC) component, perfect for timekeeping functions in a wide range of electronic applications. Designed with precision and reliability in mind, this RTCC module features a battery backup capability, ensuring that timekeeping operations continue seamlessly even during power outages.

Key Features

• Accuracy: The MCP79400T-I/ST includes a built-in digital trimming circuit that can compensate for crystal inaccuracies, ensuring precise timekeeping.
• Battery Backup: With a battery backup input pin, the device can switch to an external battery source, maintaining time and calendar operations when the main power is unavailable.
• EEPROM Memory: This RTCC comes with 64 bytes of battery-backed SRAM and additional 1 Kbit of EEPROM, providing storage for device configuration or user data.
• Alarm Function: Two programmable alarms can be set, which can trigger on a minute, hour, day, or date basis, providing versatility for various application needs.
• Communication: The device utilizes an I2C interface for communication, making it easy to integrate into existing systems with minimal additional components.
• Time Format: It supports both 24-hour and 12-hour formats with AM/PM indication, catering to different user preferences and regional standards.

Applications

The MCP79400T-I/ST is suitable for a broad range of applications, including:

• Smart energy (e.g., smart meters)
• Home appliances (e.g., microwaves, ovens)
• Automotive electronics
• Office equipment (e.g., fax machines, printers)
• Consumer electronics (e.g., set-top boxes, digital cameras)
• Industrial and medical equipment

Package and Temperature Range

The MCP79400T-I/ST is available in a TSSOP package and is rated for industrial temperature ranges from -40°C to +85°C, making it robust for use in various environmental conditions.

With its comprehensive feature set and robust design, the Microchip MCP79400T-I/ST RTCC is an ideal choice for designers looking to add reliable timekeeping and calendar functionality to their projects.