Microchip MCP79521-I/MS Real-Time Clock/Calendar

The Microchip MCP79521-I/MS is a highly integrated real-time clock/calendar (RTCC) component that offers a comprehensive set of features designed for time-tracking and control applications in embedded systems. This RTCC is housed in a compact MSOP package, making it suitable for space-constrained applications.

Key Features:

• Accuracy: The MCP79521-I/MS provides precise time and date tracking, including leap year compensation up to the year 2399, ensuring long-term reliability.
• Battery Backup: With a built-in battery backup input, the device maintains accurate timekeeping even when the primary power supply is interrupted.
• Communication: It features an I2C interface for seamless integration with microcontrollers and processors, enabling easy read/write access to the clock/calendar registers.
• Memory: The device includes 64 bytes of SRAM and 1 Kbit of EEPROM, offering additional storage for critical data that needs to be preserved during power loss.
• Programmable Clock Output: A programmable clock output allows for frequency generation ranging from 1 Hz to 32 kHz, which can be used for various timing applications.
• Multiple Alarms: It supports multiple alarms, enabling the scheduling of events or wake-up signals to the host microcontroller.
• Temperature Range: The MCP79521-I/MS is designed to operate over an industrial temperature range of -40°C to +85°C, ensuring reliable performance in harsh environments.
• Power Consumption: Low current consumption in battery-backup mode ensures minimal drain on the backup power source, extending its life.

Applications:

The MCP79521-I/MS is ideal for a wide range of applications where accurate timekeeping is crucial. These include:

• Smart energy and metering
• Industrial controls and automation
• Consumer electronics
• Medical devices
• Automotive systems

With its robust feature set and compact form factor, the Microchip MCP79521-I/MS RTCC is an excellent choice for designers looking to incorporate reliable timekeeping capabilities into their products.