M41T0

Active

Serial real-time clock (RTC)

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Overview
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Sample & Buy
Solutions
Documentation
CAD Resources
Tools & Software
Quality & Reliability
Partner products
Sales Briefcase

Product overview

Description

The M41T0 real-time clock is a low power serial real-time clock with a built-in 32.768 kHz oscillator (external crystal controlled). Eight registers are used for the clock/calendar function and are configured in binary coded decimal (BCD) format. Addresses and data are transferred serially via a two-line bidirectional bus. The built-in address register is incremented automatically after each WRITE or READ data byte. The M41T0 is supplied in 8-lead plastic small outline package.
  • All features

    • Counters for seconds, minutes, hours, day, date, month, years, and century
    • 32 KHz crystal oscillator integrating load capacitance (12.5 pF) providing exceptional oscillator stability and high crystal series resistance operation
    • Oscillator stop detection monitors clock operation
    • Serial interface supports I2C bus (400 kHz protocol)
    • Low standby current 0.9 μA (typ at 3 V)
    • 2.0 to 5.5 V clock operating voltage
    • Special software programmable output
    • Operating temperature of –40 to 85 °C

Circuit Diagram

All tools & software

    • Part number
      Status
      Description
      Type
      Supplier

      STSW-SRTC001

      Active

      I2C code for Serial RTC

      Clocks and Timers Software ST
      STSW-SRTC001

      Description:

      I2C code for Serial RTC

      STSW-SRTC002

      Active

      SPI code -Serial RTC

      Clocks and Timers Software ST
      STSW-SRTC002

      Description:

      SPI code -Serial RTC

EDA Symbols, Footprints and 3D Models

STMicroelectronics - M41T0

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

Symbols

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3D models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
M41T0M6F
Active
SO-8 Industrial Ecopack3

M41T0M6F

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack3

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

Part Number
Order from Distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Budgetary Price (US$)*/Qty
More info
min
max
M41T0M6F Available at 7 distributors

Distributor availability ofM41T0M6F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1421 1 Buy from Distributor
RS COMPONENTS EUROPE 1305 5 Buy from Distributor
FUTURE WORLDWIDE 5000 2500 Buy from Distributor
Newark Element14 AMERICA 143 0 Buy from Distributor
MOUSER WORLDWIDE 6043 1 Buy from Distributor
Farnell Element14 EUROPE 2196 1 Buy from Distributor
ANGLIA Live EUROPE 20 2500 Buy from Distributor

Distributor reported inventory date: 2021-10-26

Distributor Name

DIGIKEY

Stock

1421

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

1305

Min.Order

5

FUTURE

Stock

5000

Min.Order

2500

Region

WORLDWIDE Buy from Distributor

Newark Element14

Stock

143

Min.Order

0

Region

AMERICA Buy from Distributor

MOUSER

Stock

6043

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

2196

Min.Order

1

ANGLIA Live

Stock

20

Min.Order

2500

Distributor reported inventory date: 2021-10-26

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel SO-8 -40 85 0.9591 / 1k
MORE INFO

NVRAM size (B):

-

Country of Origin:

MOROCCO

M41T0M6F

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.9591 / 1k

Distributor availability ofM41T0M6F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1421 1 Buy from Distributor
RS COMPONENTS EUROPE 1305 5 Buy from Distributor
FUTURE WORLDWIDE 5000 2500 Buy from Distributor
Newark Element14 AMERICA 143 0 Buy from Distributor
MOUSER WORLDWIDE 6043 1 Buy from Distributor
Farnell Element14 EUROPE 2196 1 Buy from Distributor
ANGLIA Live EUROPE 20 2500 Buy from Distributor

Distributor reported inventory date: 2021-10-26

Distributor Name

DIGIKEY

Stock

1421

Min.Order

1

Region

WORLDWIDE Buy from Distributor

RS COMPONENTS

Stock

1305

Min.Order

5

FUTURE

Stock

5000

Min.Order

2500

Region

WORLDWIDE Buy from Distributor

Newark Element14

Stock

143

Min.Order

0

Region

AMERICA Buy from Distributor

MOUSER

Stock

6043

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

2196

Min.Order

1

ANGLIA Live

Stock

20

Min.Order

2500

Distributor reported inventory date: 2021-10-26

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SO-8

Operating Temperature (°C)

(min)

-40

(max)

85

Budgetary Price (US$)* / Qty

0.9591 / 1k

NVRAM size (B)

-

Country of Origin

MOROCCO

(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors