M41ST87WMX6

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The M41ST87WMX6 is a low power real-time clock (RTC) made by the STMicroelectronics. It is designed for use in a wide range of applications from automotive, industrial and communications to computing equipments. It offers extensive clock, alarm and counting functions including calendar, timer and multiple power management functions.

The M41ST87WMX6 operates on a single-cell +3V lithium battery (LIR2032) enabling it to provide an accurate clock time base, even after main power loss. Nowadays, these kinds of RTCs have become an integral part of many embedded systems and provide a reliable time source. RTCs are used to schedule various events, manage time and to generate periodic interrupts used to drive various micro controllers.

The M41ST87WMX6 real time clock consists of 32-bit registers, oscillator circuits, counters, registers and interfacing circuitry to provide a complete time-keeping network. It includes a built-in frequency-adjustable quartz crystal, called a resonator. This resonator’s frequency is adjustable between 20kHz and 32kHz, which allows the M41ST87WMX6 to operate accurately over temperature changes and power supply variations.

The M41ST87WMX6 real time clock has the ability to count seconds, minutes, hours, days and months over a wide range of months, years and leap years. It offers a programmable frequency synthesizer, which makes it easy to change the oscillator clock frequency. The ability to select which type of output signal is required makes it suitable for all types of embedded devices.

The M41ST87WMX6 has a battery backup circuitry, which provides continuous clock time, even when the main power is not available. This is important to ensure the RTC is always running at the right time, no matter what the circumstances. A wide variety of interrupt requests are also available to assist in programming different time-related activities.

The M41ST87WMX6 real time clock provides a wide range of features, making it suitable for a variety of applications. It is ideal for automotive, industrial and communications systems, as well as embedded computing and data processing applications. With its low power design, the M41ST87WMX6 can be used in a variety of battery powered devices. In addition, its adjustable frequency quartz crystal allows for improved accuracy and longer battery life.

In summary, the M41ST87WMX6 is a versatile real time clock with a number of features to make it suitable for a variety of applications. Its adjustable frequency quartz crystal makes it accurate, while its battery backup circuitry makes it reliable even after main power loss. Its programmable frequency synthesizer and various interrupt requests make it easy to program various time-related activities. All these features combine to make it ideal for a wide range of automotive, industrial, communications and embedded computing applications.

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