M41T81M6F Clock/Timing - Real Time Clocks by STMicroelectronics
M41T81M6F is a Clock/Timing - Real Time Clocks from STMicroelectronics in 8-SOIC packaging. It is commonly reviewed for IC RTC CLK/CALENDAR I2C 8-SOIC. This page lists current TrustCompo stock, tier pricing, package data, datasheet access, compliance attributes, Hong Kong warehouse shipping options, payment confirmation, and RFQ options for buyers verifying this exact ordering code.
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4 certifications
ISO 9001
Quality management processes for more consistent sourcing and handling.
AS9120B
Aerospace-focused distribution controls for traceability and reliability.
ISO 14001
Environmental management discipline across warehouse and operating workflows.
ESD Control
Electrostatic handling standards to help protect sensitive components.
RFQ checklist
Order process
Confirm the core buying details for M41T81M6F before RFQ, PO release, and shipment planning.
1
Confirm MPN
Use the exact part number, manufacturer, package, and approval constraints in the RFQ.
2
Check stock and price
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3
Align documents
Confirm datasheet, CoC, traceability, lifecycle notes, and inspection scope when required.
4
Arrange shipment
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Before PO release
Part confirmation
Exact MPN confirmed: M41T81M6F
Package to verify: 8-SOIC
Commercial confirmation
Live stock and lead time confirmed by RFQ
Final price and tax terms confirmed before PO release
Fulfillment & documents
Ship-from location: Hong Kong warehouse
Shipping method: DHL, FedEx, UPS, or buyer forwarder account
Product overview
Product overview
Review the sourcing context for M41T81M6F from STMicroelectronics, including product identity, application fit, package notes, and purchasing considerations.
The M41T81M6F is a real-time clock (RTC) integrated circuit (IC) manufactured by STMicroelectronics. This device is designed to provide accurate timekeeping and date tracking for various applications, including consumer electronics, industrial equipment, and automotive systems.
Key Features:
Timekeeping Functionality: The M41T81M6F maintains time in hours, minutes, seconds, and can also keep track of the day, month, and year. It is capable of handling leap years, ensuring accurate date management.
Power Supply: The device operates on a wide voltage range, typically from 1.8V to 5.5V, making it suitable for battery-powered applications. It also features a low-power consumption mode, which is essential for extending battery life in portable devices.
Battery Backup: The M41T81M6F includes a battery backup feature that allows it to continue functioning even when the main power supply is disconnected. This is crucial for maintaining timekeeping during power outages.
Interface: The RTC communicates with microcontrollers or other digital devices via an I2C (Inter-Integrated Circuit) interface, allowing for easy integration into various systems. The I2C protocol is widely used for connecting low-speed devices to processors and microcontrollers.
Programmable Alarms: The device supports programmable alarms, enabling it to generate interrupts at specified times. This feature is useful for applications that require scheduled events or reminders.
Temperature Compensation: The M41T81M6F may include temperature compensation features to enhance accuracy across a range of operating temperatures, ensuring reliable performance in diverse environments.
Package Type: The M41T81M6F is typically available in a compact package, such as a SOIC (Small Outline Integrated Circuit) or TSSOP (Thin Shrink Small Outline Package), which facilitates easy mounting on printed circuit boards (PCBs).
Applications: This RTC is suitable for a variety of applications, including but not limited to:
Consumer electronics (watches, clocks, home appliances)
Industrial automation (control systems, data loggers)
Automotive (dashboard clocks, event recorders)
Telecommunications (network equipment, routers)
Summary:
The M41T81M6F from STMicroelectronics is a versatile and reliable real-time clock IC that provides essential timekeeping functions with low power consumption and battery backup capabilities. Its I2C interface and programmable features make it an ideal choice for a wide range of applications, ensuring accurate time and date management in both consumer and industrial settings.
Technical parameters
Parameters
Compare grouped M41T81M6F parameters from STMicroelectronics, including package, series, key attributes, and technical values used for engineering and sourcing review.
Product Parameter
Terminal Finish
Nickel/Palladium/Gold (Ni/Pd/Au)
Product Parameter
Power Supplies
2.5/5V
Product Parameter
Number Of Timers
1
Product Parameter
Supply Voltage
2V~5.5V
Product Parameter
Information Access Method
I2C
Product Parameter
Logic Function
Clock
M41T81M6F Product Parameter
Parameter
Value
Terminal Finish
Specifies the plating material on component terminals, affecting solderability, corrosion resistance, and long-term reliability. Compare finishes like tin, gold, or silver for your assembly process and environmental requirements. Verify against datasheet for compliance.
Nickel/Palladium/Gold (Ni/Pd/Au)
Power Supplies
Specifies the required power supply voltages for the component. Engineers use this to ensure the board's power rails match the device's needs. Verify against the datasheet's recommended operating conditions to avoid undervoltage or overvoltage issues.
2.5/5V
Number Of Timers
Indicates the count of independent timer modules integrated into the microcontroller or IC. Compare this when selecting devices for time-critical tasks like PWM generation, event counting, or real-time scheduling. Verify the exact timer features and resolution in the datasheet.
1
Supply Voltage
Specifies the range of DC or AC input voltage the component requires for proper operation. Engineers compare this to the system power rail to ensure compatibility. Always verify against the datasheet's absolute maximum ratings to prevent damage.
2V~5.5V
Information Access Method
Describes how data is read from or written to a memory device, such as serial or parallel interface. This affects communication speed and system integration complexity. Verify the access method matches your microcontroller or bus protocol before designing the circuit.
I2C
Logic Function
Specifies the Boolean operation performed by the logic IC, such as AND, OR, NAND, or XOR. Engineers compare this to match the required signal processing in their circuit. Verify the exact function against the datasheet to ensure correct logic behavior.
Clock
Date Format
Specifies the date representation used by real-time clock modules or data logging ICs, such as YYYY-MM-DD or DD/MM/YYYY. Important for ensuring compatibility with your software parsing routines. Check the datasheet to confirm the exact format and any configurable options.
YY-MM-DD-dd
Time Format
Specifies the time representation used by the component, such as 12-hour or 24-hour. This is critical for real-time clock modules and timers. Verify the format matches your application's display or data logging requirements to avoid time interpretation errors.
HH:MM:SS:hh (24 hr)
Interrupt Capability
Indicates whether the component can generate interrupt signals to notify the host processor of events. Check this attribute when selecting devices for real-time or event-driven systems, and verify the interrupt output type and polarity in the datasheet.
Y
Timekeeping Current (Max)
Maximum current drawn by the real-time clock during timekeeping mode. Compare this value to estimate battery life in portable or backup-powered designs. Verify against the datasheet for supply voltage and temperature conditions.
100μA @ 2V~5.5V
Non-Volatile Memory
Indicates the type of memory that retains stored data even when power is removed. Compare this attribute when selecting ICs for firmware or configuration storage. Verify the memory technology and endurance against the datasheet to ensure reliable long-term data retention.
20 B
Memory Size
Indicates the total storage capacity of the memory device, typically in bits or bytes. Buyers use this to match firmware or data storage requirements. Confirm the exact organization and density in the datasheet before design-in.
20B
Battery Supply Voltage
Specifies the nominal battery voltage required for the device to operate. Check this value against your power source to ensure compatibility. Verify the acceptable range in the datasheet to avoid undervoltage or overvoltage conditions that could damage the component.
2.5V~3.5V
RAM Size
Specifies the amount of random access memory available for data storage during operation. This determines the complexity of tasks the component can handle. Buyers should verify that the RAM size meets the application's memory requirements, especially for real-time processing or buffering.
20B
M41T81M6F Export Classifications & Environmental
Parameter
Value
Moisture Sensitivity Level (MSL)
Indicates the floor life of a component before it must be baked prior to soldering. Higher levels require stricter handling and shorter exposure times. Verify the MSL rating in the datasheet to ensure proper storage and assembly conditions.
1 (Unlimited)
RoHS Status
Indicates whether the component complies with the EU RoHS directive restricting hazardous substances. Buyers should verify this status for regulatory compliance and market access. Check the datasheet or certificate for exact compliance details.
ROHS3 Compliant
REACH SVHC
Indicates whether the product contains substances of very high concern as per the REACH regulation. Buyers should verify this for compliance with EU environmental standards, especially when exporting to Europe. Check the manufacturer's declaration or datasheet for accurate SVHC status.
No SVHC
JESD-609 Code
This code indicates the terminal finish material per JESD-609 standard. It helps identify the plating type for soldering compatibility and environmental compliance. Check the datasheet for the exact code and its meaning.
e4
HTSUS
Harmonized Tariff Schedule of the United States code for customs classification. Essential for import/export documentation and duty calculation. Verify the correct code with a trade specialist to avoid customs delays.
8542.39.0001
ECCN Code
Export Control Classification Number assigned by the U.S. Commerce Department. It determines export licensing requirements for electronic components. Verify the ECCN against the manufacturer's datasheet or export compliance documentation before shipping internationally.
EAR99
M41T81M6F Product Attribute
Parameter
Value
Part Status
Lifecycle status of the part, such as active or obsolete. Indicates availability and long-term support from the manufacturer. Check this before design-in to avoid last-time buys or supply disruptions. Verify with the datasheet or distributor for current status.
Active
REACH Status
Shows whether the component complies with the EU REACH regulation. Essential for legal market access in Europe. Check the manufacturer's latest statement to confirm that no substances of very high concern are present above the threshold.
REACH Unaffected
ECCN
Export Control Classification Number assigned by the U.S. government. Determines whether the component requires an export license. Essential for international trade compliance. Verify the ECCN with the manufacturer or supplier before shipping to avoid legal issues.
EAR99
Lead Free
Indicates whether the component is manufactured without lead, complying with RoHS and similar regulations. Check this attribute to ensure environmental compliance for your market. Verify against the datasheet for exact material declarations.
Lead Free
Mounting Type
Specifies how the component is attached to the PCB, such as through-hole or surface mount. This affects assembly processes, thermal performance, and mechanical strength. Buyers should verify compatibility with their manufacturing capabilities and design requirements.
Surface Mount
Packaging
Indicates the form of delivery for the component, such as tape and reel, tube, or tray. This affects handling, storage, and assembly processes. Verify the packaging type matches your production requirements and equipment compatibility.
Tape & Reel (TR)
Factory Lead Time
Indicates the typical duration from order confirmation to shipment from the manufacturer's facility. This helps you plan production schedules and inventory. Verify current lead times with your distributor or supplier, as they may vary based on order quantity, product availability, and market conditions.
10 Weeks
Operating Temperature
Specifies the ambient temperature range within which the component reliably functions. Compare this with your application's thermal environment to ensure proper operation. Always verify against the datasheet for derating curves and maximum ratings.
-40°C~85°C
Categories
Lists the product categories or classifications assigned to this component, such as connectors, capacitors, or modules. This helps in filtering and comparing similar parts. Review the categories to ensure the component fits your application and to find alternative parts in the same class.
Integrated Circuits (ICs)
Terminal Position
Position of the terminals on the package, such as dual-in-line, gull-wing, or J-lead. This affects PCB layout, soldering, and thermal performance. Engineers must ensure the terminal position matches the footprint and assembly capabilities of their manufacturing line.
DUAL
Peak Reflow Temperature (Cel)
Maximum temperature during reflow soldering that the component can withstand. This is critical for solder joint reliability and preventing damage. Verify that the peak reflow temperature is compatible with your soldering profile and the component's moisture sensitivity level.
260
Supply Voltage
Specifies the nominal operating voltage that must be applied to the component for proper function. Verify this value against your system's power rail and the datasheet's absolute maximum ratings to ensure reliable operation and avoid damage.
5V
Technology
Manufacturing technology or process used for the component, such as thin film, thick film, or semiconductor process. Affects performance, stability, and cost. Confirm the technology matches your application requirements and environmental conditions.
CMOS
Lifecycle Status
Current stage in the product's lifecycle, such as Active, Obsolete, or End of Life. This indicates availability and long-term supply risk. Check this before designing in a part to ensure it will be available for your product's production lifetime.
ACTIVE (Last Updated: 7 months ago)
Package / Case
Physical package or case type of the component, defining its dimensions, mounting style, and thermal characteristics. Common types include SMD, through-hole, BGA, and QFN. Choose the package that fits your PCB layout and assembly process. Verify the exact package code in the datasheet for footprint compatibility.
8-SOIC (0.154, 3.90mm Width)
Manufacturer
Identifies the company that designed and produced the component. Buyers often filter by manufacturer to ensure brand reliability, quality standards, and supply chain consistency. Verify the manufacturer against the datasheet and official packaging to avoid counterfeit parts.
STMicroelectronics
Clock Frequency
Operating frequency of the clock signal that drives the device. Determines processing speed and timing accuracy. Compare with your system's required clock rate and check the datasheet for maximum and typical values.
0.032MHz
Reflow Temperature-Max (S)
Maximum time the component can be exposed to the peak reflow temperature during soldering. Exceeding this duration may cause damage or degrade reliability. Ensure your soldering profile stays within this limit and check the datasheet for exact conditions.
30
Contact Plating
Specifies the metal coating applied to the contact surfaces of connectors, switches, or relays. This finish affects conductivity, corrosion resistance, and durability. Engineers should verify the plating material and thickness against the datasheet to ensure reliable performance in the intended environment.
Tin
Radiation Hardening
Indicates if the component is designed to withstand ionizing radiation in space, nuclear, or high-energy physics applications. Compare radiation-tolerant vs. radiation-hardened parts for mission-critical designs. Verify the total ionizing dose (TID) and single-event effect (SEE) ratings in the datasheet.
No
Width
Physical width of the component body, typically in millimeters. Essential for PCB footprint design and mechanical fit. Verify against the datasheet to ensure proper clearance and compatibility with your board layout and enclosure.
4mm
Mounting Type
Specifies how the component attaches to the PCB or assembly, such as surface mount, through-hole, or chassis mount. This affects soldering process, mechanical stability, and thermal performance. Verify compatibility with your board layout and assembly capabilities.
Surface Mount
Length
Specifies the physical length of the component body, typically in millimeters. This dimension is critical for PCB layout and mechanical fit. Verify against the datasheet to ensure proper clearance and alignment in your design.
5mm
Terminal Pitch
Terminal pitch is the center-to-center distance between adjacent leads or pads on a component. It determines PCB layout compatibility and soldering feasibility. Verify against the datasheet to ensure your footprint matches the component's actual lead spacing.
1.27mm
Number Of Pins
Total number of pins or contacts on the component. This determines the footprint and mating connector requirements. Always match the pin count to your PCB layout and connector specification to ensure proper electrical and mechanical connection.
8
Number Of Terminations
Indicates the total number of electrical connection points on the component, such as pins or pads. This is critical for PCB footprint design and assembly. Verify it matches the package specification to ensure proper soldering and connectivity.
8
Pin Count
Total number of pins or terminals on the component package. Essential for footprint design, PCB layout, and connector mating. Verify against the datasheet to ensure compatibility with your board and assembly process.
8
Height
Physical height of the component, measured from the mounting surface to the topmost point. This dimension is critical for clearance in compact assemblies and for ensuring proper fit within enclosures. Always verify against the datasheet for tolerance and mounting considerations.
1.25mm
Subcategory
A more specific classification within the main product category, such as 'Ceramic Capacitor' under 'Capacitors'. This helps narrow down search results and compare similar components. Use it to filter products with similar characteristics and intended applications.
Timer or RTC
Type
Select the component category that best matches your application, such as resistor, capacitor, diode, or connector. This classification helps narrow down the correct part family and ensures compatibility with your circuit design. Verify the type against the datasheet to avoid mismatches.
Clock/Calendar
Sub-Categories
Indicates the specific product subcategories or classifications within the broader component family. Helps narrow down search results and identify the exact type of component needed for your design. Review the subcategory to ensure compatibility with your application.
Clock/Timing - Real Time Clocks
Interface
Specifies the communication protocol or interface type used by the component, such as I2C, SPI, UART, or USB. This determines how the device connects to a microcontroller or system. Verify compatibility with your host controller and bus voltage levels before design-in.
I2C, 2-Wire Serial
Minimum Time
Specifies the shortest duration for a signal or operation, such as pulse width or delay. Compare this value with your circuit timing requirements to ensure proper functionality. Verify against the datasheet for exact conditions and tolerances.
1/100SECOND
Feature
This attribute highlights special characteristics or functions of the component, such as built-in protection, mounting style, or unique performance traits. Engineers compare these features to match specific application requirements. Always verify against the datasheet for complete specifications.
The unique part number assigned by the original component manufacturer. Use this to cross-reference datasheets, verify specifications, and ensure the exact component matches your design requirements. Always confirm the number against the manufacturer's official documentation.
M41T81M6F
Base Part Number
Identifies the core product family without package, grade, or option suffixes. Use this to compare equivalent components across manufacturers and to locate the primary datasheet. Verify the full ordering code against the manufacturer's specification before design-in.
M41T81
Datasheet preview
Datasheet PDF viewer
Preview the M41T81M6F datasheet from STMicroelectronics to check package, electrical characteristics, application notes, and document evidence before RFQ.
No public product notice document is currently displayed for M41T81M6F. Confirm PCN, PDN, EOL, date code, and lifecycle status during RFQ before production purchase.
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Targeted answers for buyers verifying the exact M41T81M6F ordering code, packaging, stock, datasheet, and replacement path.
What does M41T81M6F mean?
M41T81M6F is the exact ordering code listed for a Clock/Timing - Real Time Clocks component from STMicroelectronics. The current package reference is 8-SOIC, with listed context including IC RTC CLK/CALENDAR I2C 8-SOIC. Buyers should use the full code when requesting stock, price, datasheet, or compliance confirmation.
How should buyers verify the M41T81M6F ordering code?
Treat M41T81M6F as the full ordering code during RFQ and engineering review. Confirm the listed 8-SOIC package, manufacturer documentation from STMicroelectronics, datasheet ordering table, reel or packing details, and any customer approval constraints before substitution or PO release.
What package is M41T81M6F supplied in?
M41T81M6F is currently listed with package reference 8-SOIC from STMicroelectronics. Buyers should confirm the manufacturer package drawing, footprint, pinout, tape-and-reel details, and receiving requirements before approval.
Is M41T81M6F currently available?
M41T81M6F is currently marked with stock availability on this page. Before ordering, confirm the package (8-SOIC), listed stock (87066), available quantity (60192), required quantity, lead time, final price, compliance needs, and exact ordering code match through RFQ.
Where can I compare M41T81M6F alternatives?
A mapped alternative list is not currently published for M41T81M6F. Send an RFQ with the target quantity, package constraints, and approval requirements so TrustCompo can help review credible replacement options.