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Name: M41ST85WMH6F
Brand: STMicroelectronics
SKU: M41ST85WMH6F
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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STMicroelectronics M41ST85WMH6F

Part No.:: M41ST85WMH6F

Manufacturer:: STMicroelectronics

Package:: 28-SOP (0.350, 8.89mm Width) with SNAPHAT Sockets

Datasheet:: M41ST85WMH6F.pdf

Description:: IC RTC CLK/CALENDAR I2C 28-SOIC

In Stock:: 2508

Quantity:: Add To Cart

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M41ST85WMH6F this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including M41ST85WMH6F price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for M41ST85WMH6F to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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Basic introduction and simple engineering application of M41ST85WMH6F

M41ST85WMH6F is a serial real-time clock (RTC) with non-volatile memory, manufactured by STMicroelectronics. It is commonly used in embedded systems to provide accurate timekeeping functionality, even in the absence of power.

Application Scenario:

In a digital alarm clock project, M41ST85WMH6F can be utilized to maintain accurate timekeeping, ensuring the alarm triggers at the specified time reliably.

Circuit Design:

To implement a digital alarm clock using M41ST85WMH6F, follow these steps:

1. RTC Connection:

Connect M41ST85WMH6F to the microcontroller, such as an Arduino, using the I2C interface. Ensure proper pull-up resistors are connected to the SDA and SCL lines for reliable communication.

2. Alarm Setup:

Configure the alarm registers of M41ST85WMH6F to trigger an interrupt or set a flag when the specified time is reached. Program the microcontroller to respond to this event by activating the alarm indicator or triggering a sound.

3. User Interface:

Design a user interface using an LCD display and buttons to set the alarm time and view the current time. Utilize digital pins of the microcontroller to interface with the display and buttons.

4. Alarm Activation:

Implement logic in the microcontroller firmware to compare the current time from M41ST85WMH6F with the set alarm time. When the two times match, activate the alarm signal to alert the user.

5. Power Management:

Ensure a reliable power supply to M41ST85WMH6F and the microcontroller to prevent data loss or clock drift. Use backup power sources, such as batteries or capacitors, to maintain RTC operation during power outages.

Considerations:

When designing the alarm clock circuit, consider the following:

- Low Power Consumption: Optimize the firmware and hardware design to minimize power consumption, extending the battery life of the alarm clock.

- Button Debouncing: Implement debounce algorithms to ensure reliable operation of the user interface buttons, preventing false triggers or erratic behavior.

- Alarm Accuracy: Test the alarm functionality thoroughly to verify its accuracy and reliability under different environmental conditions.

- User Experience: Design the user interface to be intuitive and user-friendly, providing clear indications of alarm settings and current time.

- Enclosure Design: Consider the enclosure design to protect the circuit components from environmental factors and enhance the aesthetic appeal of the alarm clock.

M41ST85WMH6F information

M41ST85WMH6F Specifications

Package/Case:
28-SOP (0.350, 8.89mm Width) with SNAPHAT Sockets
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®
Series:
-
ProductStatus:
Active
Type:
Clock/Calendar
Features:
Alarm, Leap Year, NVSRAM, Square Wave Output, Supervisor, Watchdog Timer
MemorySize:
44B
TimeFormat:
HH:MM:SS:hh (24 hr)
DateFormat:
YY-MM-DD-dd
Interface:
I²C, 2-Wire Serial
Voltage-Supply:
2.7V ~ 3.6V
Voltage-SupplyBattery:
2.5V ~ 3.5V
Current-Timekeeping(Max):
0.5mA @ 2.7V ~ 3.6V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

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3. Are the M41ST85WMH6F price and inventory displayed accurate?

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6. What is the process for return or replacement of M41ST85WMH6F?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the M41ST85WMH6F we delivered, we will accept the replacement or return of the M41ST85WMH6F only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of M41ST85WMH6F.

(3)The PartNo is unused and only in the original unpacked packaging.

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations