Microchip Technology

MCP7940NT-E/MS  

Real Time Clocks ICs

MCP7940NT-E/MS Description

The MCP7940NT-E/MS is a high-performance, automotive-grade Real Time Clock (RTC) integrated circuit (IC) manufactured by Microchip Technology. This IC is designed for applications requiring precise timekeeping and calendar functionality, with a focus on low power consumption and robust performance. The MCP7940NT-E/MS operates over a wide supply voltage range of 1.8V to 5.5V and features a battery-backed supply voltage range of 1.3V to 5.5V, ensuring reliable operation in various power conditions.

MCP7940NT-E/MS Features

• Alarm, Leap Year, Square Wave Output, SRAM: The MCP7940NT-E/MS offers advanced features such as an alarm function, leap year compensation, square wave output, and 64B of SRAM, making it suitable for a wide range of applications.
• Time Format: Supports both 12-hour and 24-hour time formats, providing flexibility for various applications.
• Low Power Consumption: The maximum current consumption for timekeeping is 1.2µA at 3.3V, making it ideal for battery-powered devices.
• RoHS Compliance: The MCP7940NT-E/MS is compliant with RoHS3 standards, ensuring environmental responsibility in manufacturing.
• Moisture Sensitivity Level (MSL): Rated at MSL 1, indicating unlimited storage time before baking is required, which is beneficial for manufacturing and handling.
• Surface Mount: The MCP7940NT-E/MS is available in an 8-pin MSOP package, suitable for surface mount applications, which helps save space on the PCB.

MCP7940NT-E/MS Applications

The MCP7940NT-E/MS is ideal for applications where accurate timekeeping and calendar functions are critical, such as:

• Automotive Systems: In-car entertainment systems, telematics, and infotainment systems require precise timekeeping for features like GPS tracking and scheduled maintenance reminders.
• Industrial Automation: For systems that need to log events with timestamps or perform tasks at specific times, the MCP7940NT-E/MS provides the necessary accuracy and reliability.
• Smart Home Devices: Devices like smart thermostats and lighting systems can benefit from the MCP7940NT-E/MS's ability to maintain accurate time and schedule tasks.
• Portable Electronics: In devices like wearables and portable medical equipment, the low power consumption and small form factor of the MCP7940NT-E/MS are advantageous.

Conclusion of MCP7940NT-E/MS

The MCP7940NT-E/MS from Microchip Technology is a versatile and reliable RTC IC, offering a combination of advanced features, low power consumption, and automotive-grade performance. Its unique capabilities, such as leap year compensation and square wave output, along with its compliance with environmental standards, make it a standout choice for a variety of applications where precise timekeeping is essential. Whether in automotive, industrial, or consumer electronics, the MCP7940NT-E/MS delivers the performance and reliability needed for today's demanding applications.

MCP7940NT-E/MS Documents

Download datasheets and manufacturer documentation for MCP7940NT-E/MS

Errata :

MCP7940N Errata      

PCN Assembly/Origin :

Mult Devices 23/May/2018      

Datasheets :

MCP7940N       I²C™ & SPI Family Brochure      

PCN Packaging :

Reel Design Update 07/May/2015       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