M24256X-F

Active

256-Kbit serial I2C bus EEPROM

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Overview
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Documentation
CAD Resources
Tools & Software
Quality & Reliability
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Product overview

Description

The M24256X-F is a 256-Kbit I2C-compatible EEPROM (electrically erasable programmable memory) organized as 32 K × 8 bits. The M24256X-F can operate with a supply voltage from 1.65 V to 3.6 V, with a clock frequency up to 1 MHz, over an ambient temperature range from -40 °C to +85 °C. It can also operate down to 1.6 V, under some restricting conditions.
The M24256X-F offers three additional features, namely a 64-byte page, named identification page, which can be used to store sensitive application parameters that can be (later) permanently locked in read-only mode, a first 8-bit register, named configurable device address (CDA) register, authorizing the user, through software, to configure up to eight possibilities of chip enable address, and a second 8-bit register, named software write protection (SWP) register, authorizing the user, through software, to write protect a part or the full memory array.
  • All features

    • Compatible with following I2C bus modes:
      • 1 MHz (Fast-mode Plus)
      • 400 kHz (Fast-mode)
      • 100 kHz (Standard-mode)
    • Memory array:
      • 256 Kbit (32 Kbytes) of EEPROM
      • Page size: 64 bytes
      • Additional identification page
    • Configurable device address register
    • Software write protection register
    • Single supply voltage: 1.6 to 3.6 V
    • Operating temperature range: -40 °C up to +85 °C
    • Write cycle time:
      • Byte write within 5 ms
      • Page write within 5 ms
    • Random and sequential read modes
    • Enhanced ESD / latch-up protection
    • More than 4 million write cycles
    • More than 200-year data retention
    • Package
      • WLCSP 4-ball (ECOPACK2)
      • Unsawn wafer (each die is tested)

All tools & software

    • Part number
      Status
      Description
      Type
      Supplier

      ST EEPROM Finder

      Active

      Serial EEPROMs product finder for Android and iOS

      Finder Apps ST
      ST EEPROM Finder

      Description:

      Serial EEPROMs product finder for Android and iOS
    • 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

EDA Symbols, Footprints and 3D Models

STMicroelectronics - M24256X-F

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
M24256X-FCU6T/VF
Active
WLCSP ULTRA-THIN Industrial Ecopack2

M24256X-FCU6T/VF

Package:

WLCSP ULTRA-THIN

Material Declaration**:

PDF XML

Marketing Status

Active

Package

WLCSP ULTRA-THIN

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
M24256X-FCU6T/VF Available at 3 distributors

Distributor availability ofM24256X-FCU6T/VF

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5000 1 Buy from Distributor
MOUSER WORLDWIDE 4990 1 Buy from Distributor
Farnell Element14 EUROPE 2000 1 Buy from Distributor

Distributor reported inventory date: 2021-10-16

Distributor Name

DIGIKEY

Stock

5000

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

4990

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

2000

Min.Order

1

Distributor reported inventory date: 2021-10-16

Buy Direct
Active
EAR99 NEC Tape And Reel WLCSP ULTRA-THIN -40 85 - 0.236 / 1k
MORE INFO

Unit Price (US$):

0.236

Country of Origin:

SINGAPORE

M24256X-FCU6T/VF

Marketing Status

Active

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

0.236 / 1k

Distributor availability ofM24256X-FCU6T/VF

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 5000 1 Buy from Distributor
MOUSER WORLDWIDE 4990 1 Buy from Distributor
Farnell Element14 EUROPE 2000 1 Buy from Distributor

Distributor reported inventory date: 2021-10-16

Distributor Name

DIGIKEY

Stock

5000

Min.Order

1

Region

WORLDWIDE Buy from Distributor

MOUSER

Stock

4990

Min.Order

1

Region

WORLDWIDE Buy from Distributor

Farnell Element14

Stock

2000

Min.Order

1

Distributor reported inventory date: 2021-10-16

ECCN (EU)

NEC

Packing Type

Tape And Reel

Package

WLCSP ULTRA-THIN

Operating Temperature (°C)

(min)

-40

(max)

85

Replacement Product

-

Budgetary Price (US$)* / Qty

0.236 / 1k

Country of Origin

SINGAPORE

(*) 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