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  • The M24256 is a 256-Kbit I2C-compatible EEPROM (electrically erasable programmable memory) organized as 32 K × 8 bits.

    The M24256-BW can operate with a supply voltage from 2.5 V to 5.5 V, the M24256-BR AND M24256-DR can operate with a supply voltage from 1.8 V to 5.5 V, and the M24256-BF and M24256-DF can operate with a supply voltage from 1.7 V to 5.5 V. All these devices operate with a clock frequency of 1 MHz (or less), over an ambient temperature range of –40 °C / +85 °C. The M24256-D offers an additional page, named the identification page (64 byte). The identification page can be used to store sensitive application parameters which can be (later) permanently locked in read-only mode.

    Key Features

    • Packages
      • Compatible with following I2C bus modes:
        • 1 MHz
        • 400 kHz
        • 100 kHz
      • Memory array:
        • 256 Kbit (32 Kbyte) of EEPROM
        • Page size: 64 byte
        • Additional write lockable page (M24256-D order codes)
      • Single supply voltage and high speed:
        • 1 MHz clock from 1.7 V to 5.5 V
      • Write:
        • Byte write within 5 ms
        • Page write within 5 ms
      • Operating temperature range:
        • from -40 °C up to +85 °C
      • Random and sequential read modes
      • Write protect of the whole memory array
      • Enhanced ESD/latch-Up protection
      • More than 4 million write cycles
      • More than 200-years data retention
      • RoHS-compliant and Halogen-free (ECOPACK2)
      • SO8 ECOPACK2
      • TSSOP8 ECOPACK2
      • UFDFPN8 ECOPACK2
      • WLCSP ECOPACK2
      • Unsawn wafer (each die is tested)

Recommended for you

All tools & software

    • Part number
      Status
      Description
      Type
      Supplier

      X-NUCLEO-EEPRMA2

      Active

      Standard I²C and SPI EEPROM memory expansion board based on M24xx and M95xx series for STM32 Nucleo

      STM32 Nucleo expansion boards ST
      X-NUCLEO-EEPRMA2

      Description:

      Standard I²C and SPI EEPROM memory expansion board based on M24xx and M95xx series for STM32 Nucleo
    • Part number
      Status
      Description
      Type
      Supplier

      ST EEPROM Finder

      Active

      Serial EEPROMs product finder for Android and iOS

      Finders Apps ST
      ST EEPROM Finder

      Description:

      Serial EEPROMs product finder for Android and iOS

EDA Symbols, Footprints and 3D Models

STMicroelectronics - M24256-BW

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

Symbols

Footprints

Footprints

3D model

3D models

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
M24256-BWDW6TP
NRND
TSSOP8 Industrial Ecopack2
M24256-BWMN6TP
NRND
SO8 Industrial Ecopack2

M24256-BWDW6TP

Package:

TSSOP8

Material Declaration**:

PDF XML

Marketing Status

NRND

Package

TSSOP8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

M24256-BWMN6TP

Package:

SO8

Material Declaration**:

Marketing Status

NRND

Package

SO8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) 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) Replacement Product
Budgetary Price (US$)*/Qty
More info
min
max
M24256-BWDW6TP Available at 5 distributors

Distributor availability ofM24256-BWDW6TP

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3889 1 Order Now
AVNET AMERICA 68000 0 Order Now
FUTURE WORLDWIDE 8000 4000 Order Now
ARROW EUROPE 64000 0 Order Now
MOUSER WORLDWIDE 1708 1 Order Now

Distributor reported inventory date: 2020-12-03

Distributor Name

DIGIKEY

Stock

3889

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

68000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

8000

Min.Order

4000

Region

WORLDWIDE Order Now

ARROW

Stock

64000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

1708

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-12-03

Buy Direct
NRND
EAR99 NEC Tape And Reel TSSOP8 -40 85 M24256 BRDW6TP 0.2274 / 1k
MORE INFO

Unit Price (US$):

0.2274

Country of Origin:

CHINA

M24256-BWMN6TP Available at 8 distributors

Distributor availability ofM24256-BWMN6TP

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6017 1 Order Now
COMPEL EUROPE 7931 1 Order Now
AVNET AMERICA 510 0 Order Now
FUTURE WORLDWIDE 24335 1 Order Now
ARROW EUROPE 375000 0 Order Now
ARROW AMERICA 5000 2500 Order Now
P&S ASIA/PACIFIC 5483 1 Order Now
MOUSER WORLDWIDE 322 1 Order Now

Distributor reported inventory date: 2020-12-03

Distributor Name

DIGIKEY

Stock

6017

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

7931

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

510

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

24335

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

375000

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

5000

Min.Order

2500

Region

AMERICA Order Now

P&S

Stock

5483

Min.Order

1

Region

ASIA/PACIFIC Order Now

MOUSER

Stock

322

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-12-03

Buy Direct
NRND
EAR99 NEC Tape And Reel SO8 -40 85 M24256-BRMN6TP 0.2075 / 1k
MORE INFO

Unit Price (US$):

0.2075

Country of Origin:

CHINA

M24256-BWDW6TP

Marketing Status

NRND

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.2274 / 1k

Distributor availability ofM24256-BWDW6TP

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 3889 1 Order Now
AVNET AMERICA 68000 0 Order Now
FUTURE WORLDWIDE 8000 4000 Order Now
ARROW EUROPE 64000 0 Order Now
MOUSER WORLDWIDE 1708 1 Order Now

Distributor reported inventory date: 2020-12-03

Distributor Name

DIGIKEY

Stock

3889

Min.Order

1

Region

WORLDWIDE Order Now

AVNET

Stock

68000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

8000

Min.Order

4000

Region

WORLDWIDE Order Now

ARROW

Stock

64000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

1708

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-12-03

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

TSSOP8

Operating Temperature (°C)

(min)

-40

(max)

85

Replacement Product

M24256 BRDW6TP

Budgetary Price (US$)* / Qty

0.2274 / 1k

Country of Origin

CHINA

M24256-BWMN6TP

Marketing Status

NRND

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.2075 / 1k

Distributor availability ofM24256-BWMN6TP

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 6017 1 Order Now
COMPEL EUROPE 7931 1 Order Now
AVNET AMERICA 510 0 Order Now
FUTURE WORLDWIDE 24335 1 Order Now
ARROW EUROPE 375000 0 Order Now
ARROW AMERICA 5000 2500 Order Now
P&S ASIA/PACIFIC 5483 1 Order Now
MOUSER WORLDWIDE 322 1 Order Now

Distributor reported inventory date: 2020-12-03

Distributor Name

DIGIKEY

Stock

6017

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

7931

Min.Order

1

Region

EUROPE Order Now

AVNET

Stock

510

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

24335

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

375000

Min.Order

0

Region

EUROPE Order Now

ARROW

Stock

5000

Min.Order

2500

Region

AMERICA Order Now

P&S

Stock

5483

Min.Order

1

Region

ASIA/PACIFIC Order Now

MOUSER

Stock

322

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-12-03

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SO8

Operating Temperature (°C)

(min)

-40

(max)

85

Replacement Product

M24256-BRMN6TP

Budgetary Price (US$)* / Qty

0.2075 / 1k

Country of Origin

CHINA

(*) 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