Microchip Technology's MCP79401T-I/MNY Real-Time Clock/Calendar

The MCP79401T-I/MNY from Microchip Technology is a highly integrated Real-Time Clock/Calendar (RTCC) optimized for time tracking and data logging with a minimal power footprint. This compact, feature-rich component is ideal for applications in smart energy management, home appliances, personal care devices, and industrial automation where accurate timekeeping is crucial.

Key Features

• Accuracy and Precision: The device maintains timekeeping with an accuracy down to seconds, minutes, hours, days of the week, date, month, and year, with leap-year compensation valid up to 2399.
• Battery Backup: It includes an onboard digital trimming circuit that can compensate for crystal tolerance and temperature, ensuring high accuracy over time. Additionally, the MCP79401T-I/MNY has a battery backup input for maintaining timekeeping and device configuration in the event of a power loss.
• I2C Interface: The device communicates via a standard I2C interface, enabling easy integration with most microcontrollers and processors.
• EEPROM Memory: It also features 64 Bytes of battery-backed SRAM and 1 Kbit of EEPROM, which provides additional data storage for device configuration or data logging needs.
• Alarm Function: Dual programmable alarms can be set to trigger on a minute, hour, day, or date - providing versatility for various application requirements.
• Power Management: A unique serial number is pre-programmed into the device, which can be used for network node identification, enhancing security and system management.
• Small Footprint: Housed in an 8-pin TDFN (3x3 mm) package, it conserves PCB space and is suitable for space-constrained applications.

Applications

The MCP79401T-I/MNY is designed to meet the needs of a broad spectrum of applications. Its precise timekeeping and low-power operation make it an excellent choice for portable devices, while the additional memory features and programmable alarms provide the flexibility needed for complex industrial systems and networked devices.

Whether you are developing consumer electronics, industrial control systems, or IoT devices, the MCP79401T-I/MNY offers a reliable and versatile solution to keep your applications on time.