MCP7940MT-I/MS

Interface:	I²C, 2-Wire Serial
Base Part Number:	MCP7940M
Supplier Device Package:	8-MSOP
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Current - Timekeeping (Max):	1µA @ 5.5V
Voltage - Supply, Battery:	--
Voltage - Supply:	1.8 V ~ 5.5 V
Series:	--
Date Format:	YY-MM-DD-dd
Time Format:	HH:MM:SS (12/24 hr)
Memory Size:	64B
Features:	Alarm, Leap Year, Square Wave Output, SRAM
Type:	Clock/Calendar
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction to MCP7940MT-I/MS

The MCP7940MT-I/MS is a low power, highly integrated real-time clock (RTC). It is designed to help system designers to increase the reliability, accuracy, and convenience of their systems. This device is ideal for applications such as navigation systems, consumer applications, industrial automation and microcontrollers that require accurate timing measurements.

Features of MCP7940MT-I/MS

The MCP7940MT-I/MS is an ultra-low power integrated circuit that combines a 32-bit real-time clock (RTC) with a crystal oscillator and a frequency-calibrated 32.768 kHz watch crystal in a single package. The device also includes an integrated 128-bit EEPROM, SRAM, and programmable alarm functions. It requires very low amounts of power and consumes virtually no energy when not in use, making it suitable for battery-powered systems.The device is also equipped with a timekeeping battery backup circuit, which allows the clock and its settings to remain intact when power is removed. This feature is particularly useful in applications that require an active timekeeping function at all times. The device also features a non-volatile register, which can be used to store system configuration information.

Benefits of MCP7940MT-I/MS

The primary benefit of using the MCP7940MT-I/MS is its low power consumption, making it suitable for battery-powered applications. It is also highly integrated, reducing the need for external components which reduces circuit complexity, simplifies board layout and lowers system cost. The device also supports a range of time formats, including alarm, time-of-day event, and time-of-day wake-up commands, which enable it to be used in a range of applications that require accurate timekeeping. The low power consumption and small form factor make it well-suited for embedded applications.

Application Field and Working Principle of MCP7940MT-I/MS

The MCP7940MT-I/MS is an ideal device for use in a range of clock/timing applications, such as navigation systems, medical equipment, consumer electronics, industrial automation, and microcontrollers. It is no larger than a standard SOIC-8 package, making it ideal for use in space-limited applications.The basic working principle of the MCP7940MT-I/MS is that it measures time using a real-time clock (RTC). This device features a 32-bit counter with a frequency-calibrated 32.768 kHz watch crystal, which is used to measure the time period between two clock edges. The device also contains an integrated 128-bit EEPROM, SRAM, and programmable alarm functions.Once the RTC has been programmed with the desired start time, it will continue to measure time on its own, providing highly accurate and reliable timing measurements. The device also supports various time management functions, such as alarm, time-of-day event, time-of-day wake-up commands, and more, making it well-suited for a range of applications. The low power consumption of the MCP7940MT-I/MS makes it ideal for battery-powered applications, while the small form factor makes it well-suited for embedded applications. The device can also be easily integrated into existing systems and circuit designs.

Conclusion

The MCP7940MT-I/MS is a low power, highly integrated real-time clock (RTC) that is ideal for a range of applications, including navigation systems, medical equipment, consumer electronics, industrial automation, and microcontrollers. The device features a 32-bit counter with a frequency-calibrated 32.768 kHz watch crystal, which is used to measure time, an integrated 128-bit EEPROM, SRAM, and programmable alarm functions. Its ultra-low power consumption, small form factor, and various time management functions make it well-suited for embedded applications.

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