Microchip Technology

MCP7940N-I/ST  

Real Time Clocks ICs

MCP7940N-I/ST Description

The MCP7940N-I/ST is a Real Time Clocks ICs manufactured by Microchip Technology. It is a high-performance, low-power clock/calendar module that operates over a wide supply voltage range of 1.8V to 5.5V. This device is specifically designed for automotive applications and offers a variety of features that make it ideal for a wide range of applications.

MCP7940N-I/ST Features

• Voltage - Supply: The MCP7940N-I/ST operates over a wide supply voltage range of 1.8V to 5.5V, ensuring compatibility with various power sources.
• Voltage - Supply, Battery: It also supports a battery supply voltage range of 1.3V to 5.5V, making it suitable for backup power scenarios.
• Time Format: The device supports a time format of HH:MM:SS (12/24 hr), allowing for flexible time display options.
• Alarm, Leap Year, Square Wave Output, SRAM: The MCP7940N-I/ST features an alarm, leap year compensation, square wave output, and SRAM, providing a comprehensive set of functionalities.
• Memory Size: It offers a memory size of 64B, enabling storage of time and date information.
• Current - Timekeeping (Max): The device consumes a maximum of 1.2µA at 3.3V during timekeeping, ensuring low power consumption.
• Mounting Type: The MCP7940N-I/ST is a surface-mount device, allowing for compact and efficient integration into various systems.
• Package: It comes in a Tube package, making it easy to handle and store.

MCP7940N-I/ST Applications

The MCP7940N-I/ST is ideal for various applications where accurate timekeeping and low power consumption are crucial. Some specific use cases include:

1. Automotive Applications: Due to its automotive grade and wide supply voltage range, the MCP7940N-I/ST is well-suited for automotive systems such as infotainment, telematics, and engine control modules.
2. Industrial Control Systems: The device's low power consumption and robust performance make it suitable for industrial control systems that require precise timekeeping.
3. Smart Home Devices: The MCP7940N-I/ST can be used in smart home devices such as thermostats, lighting systems, and security systems to provide accurate time-based control.

Conclusion of MCP7940N-I/ST

In conclusion, the MCP7940N-I/ST is a versatile and high-performance Real Time Clocks IC that offers a wide range of features and benefits. Its automotive grade, low power consumption, and comprehensive functionality make it an ideal choice for a variety of applications, particularly in the automotive and industrial sectors. With its unique combination of features and advantages, the MCP7940N-I/ST stands out as a reliable solution for accurate timekeeping and date management in demanding environments.

MCP7940N-I/ST Documents

Download datasheets and manufacturer documentation for MCP7940N-I/ST

Errata :

MCP7940N Errata      

PCN Assembly/Origin :

Bond Wire 28/Mar/2022      

Datasheets :

MCP7940N       I²C™ & SPI Family Brochure      

PCN Packaging :

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

Design Resources :

MCP7940N Development Tool Selector      

HTML Datasheet :

I²C™ & SPI Family Brochure      

PCN Design/Specification :

MCP7940N 08/Apr/2022       MCP7940N 31/Oct/2019      

Environmental Information :

Microchip CA Prop65       Microchip RoHS       Microchip REACH