M41T01

Active

Serial real-time clock (RTC) with built-in battery switchover circuit

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  • The M41T01 is a low-power serial real-time clock (RTC). The built-in 32.768 kHz oscillator circuit works with an external crystal and does not need any load capacitors.

    The M41T01 clock has a built-in power sense circuit which detects power failures and automatically switches to the battery supply during power failures. Eight bytes of the RAM 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 energy needed to sustain the RAM and clock operations can be supplied from a small lithium coin cell.
    Typical data retention time is in excess of 5 years with a 50 mA/h 3 V lithium cell. The M41T01 is supplied in an 8-lead plastic small outline package.

    Key Features

    • 2.0 to 5.5 V clock operating voltage
    • Counters for seconds, minutes, hours, day, date, month, years, and century
    • Software clock calibration
    • Automatic switchover and deselect circuitry
    • Ultra-low battery supply current of 800 nA
    • Low operating current of 300 μA
    • Battery and capacitor backup
    • Battery backup not recommended for 3.0 V applications (capacitor backup only)
    • Operating temperature of –40 to 85 °C
    • Automatic leap year compensation

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STMicroelectronics - M41T01

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
M41T01M6F
Active
SO-8 Industrial Ecopack1

M41T01M6F

Package:

SO-8

Material Declaration**:

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack1

(**) 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

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ECCN (US)
ECCN (EU)
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Temperature (°C) Budgetary Price (US$)*/Qty
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min
max
M41T01M6F Available at 1 distributors

Distributor availability ofM41T01M6F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2296 1 Order Now

Distributor reported inventory date: 2021-01-19

Distributor Name

DIGIKEY

Stock

2296

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2021-01-19

Buy Direct
Active
EAR99 NEC Tape And Reel SO-8 -40 85 1.113 / 1k
MORE INFO

NVRAM size (B):

-

Country of Origin:

MOROCCO

M41T01M6F

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.113 / 1k

Distributor availability ofM41T01M6F

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2296 1 Order Now

Distributor reported inventory date: 2021-01-19

Distributor Name

DIGIKEY

Stock

2296

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2021-01-19

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SO-8

Operating Temperature (°C)

(min)

-40

(max)

85

Budgetary Price (US$)* / Qty

1.113 / 1k

NVRAM size (B)

-

Country of Origin

MOROCCO

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