Microchip Technology MCP79411-I/MS Real-Time Clock/Calendar

The MCP79411-I/MS is a highly integrated Real-Time Clock/Calendar (RTCC) from Microchip Technology, specifically designed for effective time tracking and control applications within embedded systems. This compact and versatile component comes in a surface-mount, 8-pin MSOP (Micro Small Outline Package) that is suitable for space-constrained applications.

Featuring a built-in 64 x 8-bit static RAM, the MCP79411-I/MS provides convenient memory for data storage and scratchpad operations. Its core functionality includes the ability to maintain accurate timekeeping with seconds, minutes, hours, day, date, month, and year information. The leap year compensation is valid up to 2399, ensuring long-term accuracy without the need for manual adjustments.

The device is equipped with a battery-backed operation, which includes a digital trimming circuit designed to compensate for crystal frequency drifts due to temperature. This ensures high timekeeping accuracy over a wide temperature range. The MCP79411-I/MS also has dual programmable alarms, which can be set to trigger on a minute, hour, day, or date basis, making it highly adaptable for various application needs.

One of the key features of the MCP79411-I/MS is its I2C communication interface, enabling easy integration into most microcontroller-based systems. Additionally, it supports a digital trimming feature for precise time calibration, and a unique ID with a pre-programmed EUI-48™ MAC address, which is valuable for networked devices requiring unique identification.

Other notable features include a versatile power supply voltage range from 1.8V to 5.5V, low power consumption, and a wide operating temperature range. These characteristics make the MCP79411-I/MS an excellent choice for industrial, consumer electronics, and Internet of Things (IoT) applications that require accurate timekeeping, such as smart meters, home automation, and wearable devices.

With its robust feature set and Microchip's reputation for reliability, the MCP79411-I/MS is a go-to solution for designers looking to incorporate an RTCC into their next project.