Microchip Technology

MCP795B22T-I/ST  

Real Time Clocks ICs

MCP795B22T-I/ST Description

The MCP795B22T-I/ST is a highly integrated Real-Time Clock (RTC) and Calendar IC designed by Microchip Technology. This device is part of the Clock/Timing ICs category and offers a comprehensive set of features for precise timekeeping and data storage. The MCP795B22T-I/ST is packaged in a 14-TSSOP format and is available in Tape & Reel (TR) packaging, making it suitable for surface mount applications. Despite being marked as obsolete, its robust feature set and compatibility with a wide range of supply voltages (1.8V to 5.5V) make it a reliable choice for various electronic designs.

MCP795B22T-I/ST Features

The MCP795B22T-I/ST boasts several advanced features that set it apart from other RTC solutions:

• Alarm Functionality: The integrated alarm feature allows for precise scheduling and event triggering, making it ideal for applications requiring specific time-based actions.
• EEPROM Memory: With 64 bytes of EEPROM memory, the MCP795B22T-I/ST provides non-volatile storage for critical data, ensuring data integrity even during power loss.
• Leap Year Compensation: The device automatically adjusts for leap years, ensuring accurate time overkeeping extended periods.
• Square Wave Output: This feature enables the generation of a precise square wave signal, useful for clocking other components or synchronizing systems.
• SRAM: The inclusion of SRAM offers additional memory for temporary data storage, enhancing the device's versatility.
• Unique ID: Each MCP795B22T-I/ST comes with a unique identifier, facilitating individual device tracking and management.
• Watchdog Timer: The watchdog timer helps prevent system lock-ups by resetting the system if it detects an anomaly, ensuring reliable operation.

The MCP795B22T-I/ST operates within a supply voltage range of 1.8V to 5.5V, with a maximum timekeeping current of 1µA, making it highly energy-efficient. It supports both 12-hour and 24-hour time formats (HH:MM:SS:hh) and communicates via the SPI interface, ensuring seamless integration with various microcontrollers and systems.

MCP795B22T-I/ST Applications

The MCP795B22T-I/ST is well-suited for a variety of applications where precise timekeeping and reliable data storage are essential. Some specific use cases include:

• Embedded Systems: Ideal for embedded systems that require accurate timekeeping and data logging, such as industrial controllers, medical devices, and IoT devices.
• Consumer Electronics: Suitable for consumer electronics like digital clocks, smart home devices, and wearables that need reliable timekeeping and minimal power consumption.
• Automotive Applications: The device's robustness and wide operating voltage range make it suitable for automotive applications, including in-vehicle infotainment systems and telematics devices.
• Telecommunications: The MCP795B22T-I/ST can be used in telecommunication equipment for time synchronization and data logging, ensuring reliable operation and data integrity.

Conclusion of MCP795B22T-I/ST

The MCP795B22T-I/ST from Microchip Technology is a versatile and reliable Real-Time Clock and Calendar IC. Despite its obsolete status, its comprehensive feature set, including alarm functionality, EEPROM, leap year compensation, and a unique ID, make it a valuable component for various applications. Its energy efficiency and wide operating voltage range further enhance its suitability for a broad range of electronic designs. Whether used in embedded systems, consumer electronics, automotive applications, or telecommunications, the MCP795B22T-I/ST provides precise timekeeping and reliable data storage, ensuring accurate and dependable performance.

MCP795B22T-I/ST Documents

Download datasheets and manufacturer documentation for MCP795B22T-I/ST

Datasheets :

MCP795Wxx/Bxx Preliminary      

PCN Packaging :

Label and Packing Changes 23/Sep/2015      

HTML Datasheet :

MCP795Wxx/Bxx Preliminary      

Environmental Information :

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