Microchip Technology

MCP79411-I/ST  

Real Time Clocks ICs

MCP79411-I/ST Description

The MCP79411-I/ST is a Real Time Clock (RTC) integrated circuit (IC) manufactured by Microchip Technology. It is a highly reliable and accurate timekeeping device that is designed to maintain precise time and date information even when the main power supply is lost. The MCP79411-I/ST operates over a wide supply voltage range of 1.8V to 5.5V and has a battery backup voltage range of 1.3V to 5.5V. This IC features a 64-byte static RAM (SRAM) and 1KB of battery-backed SRAM, providing ample memory for storing time and date information, as well as additional data.

MCP79411-I/ST Features

• Alarm, Leap Year, Square Wave Output, SRAM, Unique ID: The MCP79411-I/ST offers a range of features that make it suitable for a variety of applications. The alarm function allows for time-based events to be triggered, while the leap year compensation ensures accurate timekeeping. The square wave output can be used for clock signals or other timing applications. The SRAM provides additional memory for data storage, and the unique ID allows for easy identification of the device.
• Low Power Consumption: The MCP79411-I/ST has a maximum timekeeping current of 1.2µA at 3.3V, making it ideal for battery-powered applications where power consumption is a critical factor.
• Wide Voltage Range: The MCP79411-I/ST operates over a wide supply voltage range of 1.8V to 5.5V, making it compatible with a variety of power sources.
• Battery Backup: The MCP79411-I/ST has a battery backup voltage range of 1.3V to 5.5V, ensuring that time and date information is maintained even when the main power supply is lost.
• Surface Mount: The MCP79411-I/ST is available in a surface mount package, making it suitable for use in compact and space-constrained applications.

MCP79411-I/ST Applications

The MCP79411-I/ST is ideal for a variety of applications where accurate timekeeping and data storage are required. Some specific use cases include:

• Portable Electronics: Due to its low power consumption and small form factor, the MCP79411-I/ST is well-suited for use in portable electronic devices such as smartphones, tablets, and wearables.
• Industrial Automation: The MCP79411-I/ST can be used in industrial automation systems to provide accurate timekeeping and event triggering.
• Smart Home Devices: The MCP79411-I/ST can be used in smart home devices such as thermostats, lighting systems, and security systems to provide accurate timekeeping and event scheduling.
• Automotive Applications: The MCP79411-I/ST can be used in automotive applications such as infotainment systems, telematics, and engine control units to provide accurate timekeeping and event triggering.

Conclusion of MCP79411-I/ST

The MCP79411-I/ST is a versatile and reliable Real Time Clock IC that offers a range of features and benefits for a variety of applications. Its low power consumption, wide voltage range, and battery backup capabilities make it an ideal choice for battery-powered and space-constrained applications. With its unique features such as alarm, leap year compensation, and square wave output, the MCP79411-I/ST stands out from similar models and offers a competitive advantage in the market.

MCP79411-I/ST Documents

Download datasheets and manufacturer documentation for MCP79411-I/ST

Errata :

MCP7941x Family Errata      

PCN Assembly/Origin :

Bond Wire 28/Mar/2022      

Datasheets :

MCP794xx Brochure       MCP79410-12 Datasheet       I²C™ & SPI Family Brochure      

PCN Packaging :

Packing Changes 10/Oct/2016       Label and Packing Changes 23/Sep/2015      

Design Resources :

MCP79411 Development Tool Selector      

HTML Datasheet :

MCP79410-12 Datasheet       I²C™ & SPI Family Brochure      

PCN Design/Specification :

MCP79410/11/12 Datasheet 26/Oct/2023       MCP79410/11/12 01/Mar/2018      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH