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HomeProductsIntegrated Circuits (ICs)Clock/Timing - Real Time ClocksM41T81SM6F
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M41T81SM6F - STMicroelectronics

Manufacturer Part Number
M41T81SM6F
Manufacturer
STMicroelectronics
Allelco Part Number
32D-M41T81SM6F
ECAD Model
Parts Description
IC RTC CLK/CALENDAR I2C 8SOIC
Package
8-SOIC (0.154", 3.90mm Width)
Data sheet
M41T81S.pdf
RoHs Status
ROHS3 Compliant
Our certification
In stock: 25366

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Specifications

M41T81SM6F Tech Specifications
STMicroelectronics - M41T81SM6F technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics - M41T81SM6F

Product Attribute Attribute Value  
Manufacturer STMicroelectronics  
Voltage - Supply, Battery 2V ~ 3.5V  
Voltage - Supply 2.7V ~ 5.5V  
Type Clock/Calendar  
Time Format HH:MM:SS:hh (24 hr)  
Supplier Device Package 8-SOIC  
Series -  
Package / Case 8-SOIC (0.154", 3.90mm Width)  
Package Tape & Reel (TR)  
Product Attribute Attribute Value  
Operating Temperature -40°C ~ 85°C  
Mounting Type Surface Mount  
Memory Size -  
Interface I²C, 2-Wire Serial  
Features Alarm, Leap Year, Square Wave Output, Watchdog Timer  
Date Format YY-MM-DD-dd  
Current - Timekeeping (Max) 100µA @ 2.7V ~ 5.5V  
Base Product Number M41T81  

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

Manufacturer Part Number

M41T81SM6F

Manufacturer

stmicroelectronics

Introduction

The M41T81SM6F is a robust real-time clock module from stmicroelectronics, designed for applications needing accurate timekeeping and system management based on timing.

Product Features and Performance

Type: Clock/Calendar

Features:

Alarm

Leap Year settings

Square Wave Output

Watchdog Timer

Interface: I2C, 2-Wire Serial

Voltage - Supply: 2.7V ~ 5.5V

Voltage - Supply, Battery: 2V ~ 3.5V

Current - Timekeeping (Max): 100µA at 2.7V ~ 5.5V

Mounting Type: Surface Mount

Time Format: HH:MM:SS:hh (24 hr)

Date Format: YY-MM-DD-dd

Package: 8-SOIC (0.154", 3.90mm Width)

Product Advantages

High integration with multiple functions such as alarm, leap year capability, and a watchdog timer

Flexible power requirements suitable for battery-operated applications

Wide operating temperature suitable for various industrial applications

Key Technical Parameters

Operating Temperature: -40°C ~ 85°C

Memory Size: Not specified

Supplier Device Package: 8-SOIC

Quality and Safety Features

Designed to meet stringent industry standards for reliability and safety

Compatibility

Compatible with devices requiring I2C or 2-wire serial interface

Application Areas

Industrial systems

Consumer electronics

Embedded systems

Communication infrastructure

Product Lifecycle

Product Status: Active

Not nearing discontinuation

Replacements or upgrades are available

Several Key Reasons to Choose This Product

High reliability and accuracy in timekeeping suitable for critical applications

Integrated features beyond basic clock/calendar functionality adding significant value such as watchdog timer and alarm

Low power consumption, which enhances battery life in portable devices

Wide operational temperature range catering to extreme environments

Easy integration with existing systems due to standard I2C interface and small package size

Parts with Similar Specifications

The three parts on the right have similar specifications to STMicroelectronics M41T81SM6F

Product Attribute M41T81SM6F M41T82RM6E M41T82SM6F M41T82ZM6F
Part Number M41T81SM6F M41T82RM6E M41T82SM6F M41T82ZM6F
Manufacturer STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Current - Timekeeping (Max) 100µA @ 2.7V ~ 5.5V 10µA @ 5.5V 10µA @ 5.5V 10µA @ 5.5V
Type Clock/Calendar Clock/Calendar Clock/Calendar Clock/Calendar
Features Alarm, Leap Year, Square Wave Output, Watchdog Timer Alarm, Leap Year, SRAM, Watchdog Timer Alarm, Leap Year, SRAM, Watchdog Timer Alarm, Leap Year, SRAM, Watchdog Timer
Voltage - Supply 2.7V ~ 5.5V 2.7V ~ 5.5V 3V ~ 5.5V 2.38V ~ 5.5V
Voltage - Supply, Battery 2V ~ 3.5V 2V ~ 5.5V 2V ~ 5.5V 2V ~ 5.5V
Time Format HH:MM:SS:hh (24 hr) HH:MM:SS:hh (24 hr) HH:MM:SS:hh (24 hr) HH:MM:SS:hh (24 hr)
Supplier Device Package 8-SOIC 8-SOIC 8-SOIC 8-SOIC
Package / Case 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154', 3.90mm Width) 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 85°C
Interface I²C, 2-Wire Serial I²C, 2-Wire Serial I²C, 2-Wire Serial I²C, 2-Wire Serial
Memory Size - 7B 7B 7B
Series - - - -
Package Tape & Reel (TR) Tube Tape & Reel (TR) Tape & Reel (TR)
Base Product Number M41T81 M41T82 M41T82 M41T82
Date Format YY-MM-DD-dd YY-MM-DD-dd YY-MM-DD-dd YY-MM-DD-dd

M41T81SM6F Datasheet PDF

Download M41T81SM6F pdf datasheets and STMicroelectronics documentation for M41T81SM6F - STMicroelectronics.

PCN Packaging
Moisture Barrier Bag 09/May/2016.pdf Box Label Chg 28/Jul/2016.pdf
PCN Assembly/Origin
Mult Devices 27/Feb/2019.pdf
PCN Design/Specification
New Material Set for SO8 & SO14 Pkg 18/Nov/2015.pdf
HTML Datasheet
M41T81S.pdf

Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.

Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.

Your Faithful Supply Chain Partner -

Contact us if you have any questions.

  1. Phone
    +00852 9146 4856

Certifications & Memberships

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M41T81SM6F Image

M41T81SM6F

STMicroelectronics
32D-M41T81SM6F

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