ST M41T81SM6E
ST M41T81SM6E

ST M41T81SM6E

Manufacturer No:

M41T81SM6E

Manufacturer:

ST

Package:

8-SOIC (0.154, 3.90mm Width)

Description:

8 Terminations 5V 8 Pin M41T81 Real Time Clocks Timer or RTC Subcategory Alarm, Leap Year, Square Wave Output, Watchdog Timer

Delivery:

DHL
DHL
DHL
DHL

Payment:

DHL
DHL
DHL
DHL
DHL
DHL
DHL

In Stock :Available

Price not displayed? Please send an RFQ, and we will respond immediately.

M41T81SM6E information

ST M41T81SM6E technical specifications, attributes, parameters and parts with similar specifications to ST M41T81SM6E.

  • Type
  • Parameter
  • Mount
  • Surface Mount
  • Mounting Type
  • Surface Mount
  • Package / Case
  • 8-SOIC (0.154, 3.90mm Width)
  • Number of Pins
  • 8
  • Operating Temperature
  • -40°C~85°C
  • Packaging
  • Tube
  • JESD-609 Code
  • e4
  • Feature
  • Alarm, Leap Year, Square Wave Output, Watchdog Timer
  • Part Status
  • Obsolete
  • Moisture Sensitivity Level (MSL)
  • 1 (Unlimited)
  • Number of Terminations
  • 8
  • ECCN Code
  • EAR99
  • Type
  • Clock/Calendar
  • Terminal Finish
  • Nickel/Palladium/Gold (Ni/Pd/Au)
  • Subcategory
  • Timer or RTC
  • Technology
  • CMOS
  • Voltage - Supply
  • 2.7V~5.5V
  • Terminal Position
  • DUAL
  • Peak Reflow Temperature (Cel)
  • 260
  • Supply Voltage
  • 5V
  • Frequency
  • 32kHz
  • Time@Peak Reflow Temperature-Max (s)
  • 30
  • Base Part Number
  • M41T81
  • Pin Count
  • 8
  • Power Supplies
  • 3/5V
  • Interface
  • I2C, 2-Wire Serial
  • RAM Size
  • 20B
  • Logic Function
  • Clock
  • Number of Timers
  • 1
  • Time Format
  • HH:MM:SS:hh (24 hr)
  • Date Format
  • YY-MM-DD-dd
  • Current - Timekeeping (Max)
  • 100?A @ 2.7V~5.5V
  • Interrupt Capability
  • Y
  • Voltage - Supply, Battery
  • 2V~3.5V
  • Volatile
  • YES
  • Information Access Method
  • I2C
  • Height
  • 1.25mm
  • Length
  • 5mm
  • Width
  • 4mm
  • REACH SVHC
  • No SVHC
  • Radiation Hardening
  • No
  • RoHS Status
  • RoHS Compliant
  • Lead Free
  • Lead Free

Download datasheets and manufacturer documentation for ST M41T81SM6E.

Datasheets:

M41T81SM6E Description


The M41T81SM6E is a low-power serial real-time clock (RTC) with a built-in 32.768 kHz oscillator (external crystal controlled). 



M41T81SM6E Features


  • Counters for tenths/hundredths of seconds, seconds, minutes, hours, days, dates, months, years, and century

  • 32 KHz crystal oscillator with integrated load capacitance (12.5 pf) which provides exceptional oscillator stability and high crystal series resistance operation)

  • Oscillator stop detection (monitors clock operation)

  • Serial interface supports I2C bus (400 kHz protocol)

  • Ultra-low battery supply current of 0.6 µA (type)

  • 2.0 to 5.5 V clock operating voltage

  • Automatic switchover and deselect circuitry (fixed reference) which provides full operation in 3.0 V applications)

  • VCC = 2.7 to 5.5 V

  • 2.5 V ? VPFD ? 2.7 V

  • Power-down time-stamp (HT bit) which allows determination of time elapsed in battery backup

  • Battery low flag

  • Programmable alarm and interrupt function (valid even during battery backup mode)

  • Accurate programmable watchdog timer (from 62.5 ms to 128 s)

  • Software clock calibration (to compensate for crystal deviation due to temperature)

  • Operating temperature of ?40 to 85 °C

  • Package options include an 8-lead SOIC or 18-lead embedded crystal SOIC



M41T81SM6E Applications


  • Industrial

  • General Uses 


User Guide

PURCHASE

Please verify all part numbers, quantities, and packaging preferences before placing your order. If substitutions are acceptable, please indicate this clearly. For time-sensitive projects, confirm estimated delivery dates and stock availability in advance. Once submitted, changes or cancellations may not be possible, especially for items marked as non-cancellable/non-returnable (NCNR). For international shipments, please ensure all import documentation is complete and accurate to avoid delays.

MEANS OF PAYMENT

For your convenience, we accept multiple payment methods in USD, including PayPal, Credit Card, and Wire Transfer. Net terms may be available for qualified customers upon approval.

RFQ (REQUEST FOR QUOTATIONS)

Please ensure the part numbers and quantities are accurate and complete when submitting your RFQ.
Provide target prices and acceptable alternatives, if any, to speed up the quotation process.

IMPORTANT NOTICE

Quotations are subject to stock availability and may vary with market conditions. Prices and lead times are not guaranteed until a purchase order is confirmed. Ensure your contact details are correct to avoid delays in response.

Step1：Prepare product

Step1：Prepare product

Step2：Desiccant Protection

Step2：Desiccant Protection

Step3：Vacuum Packaging

Step3：Vacuum Packaging

Step4：Individual Package

Step4：Individual Package

Step5：Anti-collision Filling

Step5：Anti-collision Filling

Step6：Packaging Box

Step6：Packaging Box

SHIPPING COST

1. Shipping starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).
2. Some specific products need to reach the minimum order quantity.
3. It may cost additional remote fees for delivery if you are in a remote area.

SHIPPING METHOD

Currently, our products are shipped through DHL, FedEx, SF, and UPS.

DELIVERY TIME

1. Once the goods are shipped, estimated delivery time depends on the shipping methods you chose: FedEx International, 5-7 business days.
2. For in-stock parts, orders normally could be shipped out within 1-2days.

M41T81SM6E Relevant information

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