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  • 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.

    Key Features

    • Compatible with all 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
    • Packages
      • 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-DF

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-DFCS6TP/K
Active
WLCSP Industrial Ecopack2
M24256-DFDW6TP
Active
TSSOP8 Industrial Ecopack2
M24256-DFMC6TG
Active
UFDFPN8 Industrial Ecopack2
M24256-DFMN6TP
Active
SO8 Industrial Ecopack2

M24256-DFCS6TP/K

Package:

WLCSP

Material Declaration**:

PDF XML

Marketing Status

Active

Package

WLCSP

Grade

Industrial

RoHS Compliance Grade

Ecopack2

M24256-DFDW6TP

Package:

TSSOP8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TSSOP8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

M24256-DFMC6TG

Package:

UFDFPN8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

UFDFPN8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

M24256-DFMN6TP

Package:

SO8

Material Declaration**:

Marketing Status

Active

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-DFCS6TP/K Available at 4 distributors

Distributor availability ofM24256-DFCS6TP/K

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1087 1 Order Now
ARROW EUROPE 2500 0 Order Now
Newark Element14 AMERICA 192 0 Order Now
MOUSER WORLDWIDE 1187 1 Order Now

Distributor reported inventory date: 2020-11-25

Distributor Name

DIGIKEY

Stock

1087

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

2500

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

192

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1187

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-11-25

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel WLCSP -40 85 - 0.389 / 1k
MORE INFO

Unit Price (US$):

0.389

Country of Origin:

SINGAPORE

M24256-DFDW6TP Available at 4 distributors

Distributor availability ofM24256-DFDW6TP

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 12603 1 Order Now
ARROW EUROPE 8000 0 Order Now
MOUSER WORLDWIDE 7324 1 Order Now
Farnell Element14 EUROPE 7838 1 Order Now

Distributor reported inventory date: 2020-11-25

Distributor Name

DIGIKEY

Stock

12603

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

8000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

7324

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

7838

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-25

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel TSSOP8 -40 85 - 0.2274 / 1k
MORE INFO

Unit Price (US$):

0.2274

Country of Origin:

CHINA

M24256-DFMN6TP Available at 5 distributors

Distributor availability ofM24256-DFMN6TP

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 12966 1 Order Now
ARROW AMERICA 137500 2500 Order Now
MOUSER WORLDWIDE 7663 1 Order Now
Farnell Element14 EUROPE 1070 1 Order Now
RUTRONIK EUROPE 5000 2500 Order Now

Distributor reported inventory date: 2020-11-25

Distributor Name

DIGIKEY

Stock

12966

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

137500

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

7663

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1070

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

5000

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-25

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel SO8 -40 85 - 0.2075 / 1k
MORE INFO

Unit Price (US$):

0.2075

Country of Origin:

CHINA

M24256-DFMC6TG Available at 4 distributors

Distributor availability ofM24256-DFMC6TG

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1790 1 Order Now
ARROW EUROPE 225000 0 Order Now
Newark Element14 AMERICA 877 0 Order Now
MOUSER WORLDWIDE 6063 1 Order Now

Distributor reported inventory date: 2020-11-25

Distributor Name

DIGIKEY

Stock

1790

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

225000

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

877

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

6063

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-11-25

Free Sample Buy Direct
Active
EAR99 NEC Tape And Reel UFDFPN8 -40 85 - 0.2621 / 1k
MORE INFO

Unit Price (US$):

0.2621

Country of Origin:

PHILIPPINES

M24256-DFCS6TP/K

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.389 / 1k

Distributor availability ofM24256-DFCS6TP/K

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1087 1 Order Now
ARROW EUROPE 2500 0 Order Now
Newark Element14 AMERICA 192 0 Order Now
MOUSER WORLDWIDE 1187 1 Order Now

Distributor reported inventory date: 2020-11-25

Distributor Name

DIGIKEY

Stock

1087

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

2500

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

192

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

1187

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-11-25

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

WLCSP

Operating Temperature (°C)

(min)

-40

(max)

85

Replacement Product

-

Budgetary Price (US$)* / Qty

0.389 / 1k

Country of Origin

SINGAPORE

M24256-DFDW6TP

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.2274 / 1k

Distributor availability ofM24256-DFDW6TP

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 12603 1 Order Now
ARROW EUROPE 8000 0 Order Now
MOUSER WORLDWIDE 7324 1 Order Now
Farnell Element14 EUROPE 7838 1 Order Now

Distributor reported inventory date: 2020-11-25

Distributor Name

DIGIKEY

Stock

12603

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

8000

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

7324

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

7838

Min.Order

1

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-25

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

TSSOP8

Operating Temperature (°C)

(min)

-40

(max)

85

Replacement Product

-

Budgetary Price (US$)* / Qty

0.2274 / 1k

Country of Origin

CHINA

M24256-DFMN6TP

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.2075 / 1k

Distributor availability ofM24256-DFMN6TP

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 12966 1 Order Now
ARROW AMERICA 137500 2500 Order Now
MOUSER WORLDWIDE 7663 1 Order Now
Farnell Element14 EUROPE 1070 1 Order Now
RUTRONIK EUROPE 5000 2500 Order Now

Distributor reported inventory date: 2020-11-25

Distributor Name

DIGIKEY

Stock

12966

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

137500

Min.Order

2500

Region

AMERICA Order Now

MOUSER

Stock

7663

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

1070

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

5000

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2020-11-25

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

SO8

Operating Temperature (°C)

(min)

-40

(max)

85

Replacement Product

-

Budgetary Price (US$)* / Qty

0.2075 / 1k

Country of Origin

CHINA

M24256-DFMC6TG

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.2621 / 1k

Distributor availability ofM24256-DFMC6TG

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 1790 1 Order Now
ARROW EUROPE 225000 0 Order Now
Newark Element14 AMERICA 877 0 Order Now
MOUSER WORLDWIDE 6063 1 Order Now

Distributor reported inventory date: 2020-11-25

Distributor Name

DIGIKEY

Stock

1790

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

225000

Min.Order

0

Region

EUROPE Order Now

Newark Element14

Stock

877

Min.Order

0

Region

AMERICA Order Now

MOUSER

Stock

6063

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-11-25

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

UFDFPN8

Operating Temperature (°C)

(min)

-40

(max)

85

Replacement Product

-

Budgetary Price (US$)* / Qty

0.2621 / 1k

Country of Origin

PHILIPPINES

(*) 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