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产品概述

描述

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.

所有功能
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)
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All tools & software

查找器App

产品型号	状态	描述	类型	供应商
ST EEPROM Finder	批量生产	用于安卓和iOS的串行EEPROM产品查找应用	查找器App	ST	ST EEPROM Finder 描述: 用于安卓和iOS的串行EEPROM产品查找应用

Product Evaluation Tools

产品型号	状态	描述	类型	供应商
X-NUCLEO-EEPRMA2	批量生产	STM32 Nucleo的标准I²C和SPI EEPROM存储器扩展板，基于M24xx和M95xx系列	STM32 Nucleo 扩充板	ST	X-NUCLEO-EEPRMA2 描述: STM32 Nucleo的标准I²C和SPI EEPROM存储器扩展板，基于M24xx和M95xx系列

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	Resource title		Latest update

产品规格 (1)

	Resource title		Latest update
PDF	DS1766 256-Kbit serial I²C bus EEPROM 35.0		27 Nov 2020	27 Nov 2020 DS1766 256-Kbit serial I²C bus EEPROM 35.0

应用手册 (4)

	Resource title	Latest update
PDF	AN4653 Cycling endurance and data retention of high density EEPROM based on CMOS F8H process 1.0	24 Mar 2021	24 Mar 2021 AN4653 Cycling endurance and data retention of high density EEPROM based on CMOS F8H process 1.0
PDF	AN2014 How a designer can make the most of STMicroelectronics Serial EEPROMs 10.1	02 May 2019	02 May 2019 AN2014 How a designer can make the most of STMicroelectronics Serial EEPROMs 10.1
PDF	AN971 I2C communication between ST7 and M24CXX EEPROM 1.7	01 Feb 2019	01 Feb 2019 AN971 I2C communication between ST7 and M24CXX EEPROM 1.7
PDF	AN1471 What happens to the M24xxx I²C EEPROM if the I²C bus communication is stopped? 4.4	16 Apr 2021	16 Apr 2021 AN1471 What happens to the M24xxx I²C EEPROM if the I²C bus communication is stopped? 4.4

技术文档 (2)

	Resource title		Latest update
PDF	TN1171 Description of UFDFPN5, UFDFPN8 and WFDFPN8 for STMicroelectronics EEPROMs and recommendations for use 3.0		01 Dec 2014	01 Dec 2014 TN1171 Description of UFDFPN5, UFDFPN8 and WFDFPN8 for STMicroelectronics EEPROMs and recommendations for use 3.0
PDF	TN0440 M24256 and M24512 EEPROM devices: compatibility with the I²C-bus specification at 400 kHz and 1 MHz 2.1		24 Dec 2019	24 Dec 2019 TN0440 M24256 and M24512 EEPROM devices: compatibility with the I²C-bus specification at 400 kHz and 1 MHz 2.1

简报 (3)

	Resource title	Latest update
PDF	EEPROM in WLCSP July 2016 1.4	28 Aug 2018	28 Aug 2018 EEPROM in WLCSP July 2016 1.4
PDF	I²C EEPROM solution in DFN5 package 1.0	10 Nov 2020	10 Nov 2020 I²C EEPROM solution in DFN5 package 1.0
PDF	Standard Serial EEPROM presentation 1.0	16 Dec 2019	16 Dec 2019 Standard Serial EEPROM presentation 1.0

宣传册 (2)

	Resource title		Latest update
PDF	EEPROM in Ultra-small packages 1.0		26 Feb 2020	26 Feb 2020 EEPROM in Ultra-small packages 1.0
PDF	Serial EEPROM 1.0		26 Mar 2021	26 Mar 2021 Serial EEPROM 1.0

选型指南 (1)

	Resource title		Latest update
PDF	Serial EEPROM Standard & SPDV1.0 1.0		18 Dec 2020	18 Dec 2020 Serial EEPROM Standard & SPDV1.0 1.0

手册 (3)

	Resource title	Latest update
PDF	Products and solutions for solar energy 1.0	15 Jun 2018	15 Jun 2018 Products and solutions for solar energy 1.0
PDF	Semiconductor solutions for healthcare applications 1.0	19 Sep 2019	19 Sep 2019 Semiconductor solutions for healthcare applications 1.0
PDF	Smart grid distribution and smart meters - Energy-efficient solutions 2.0	15 Jun 2018	15 Jun 2018 Smart grid distribution and smart meters - Energy-efficient solutions 2.0

EDA Symbols, Footprints and 3D Models

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HW Models (1)

	Resource title		Latest update
7Z	3D model EEPROM all packages rev2 1.0		15 Jan 2021	15 Jan 2021 3D model EEPROM all packages rev2 1.0

IBIS models (2)

	Resource title		Latest update
ZIP	IBIS models I2C M24xxx Standard EEPROM (-40°C to 85°C) 1.0		25 Jan 2021	25 Jan 2021 IBIS models I2C M24xxx Standard EEPROM (-40°C to 85°C) 1.0
ZIP	IBIS models SPI M95xxx Standard EEPROM (-40°C to 85°C) 1.0		25 Jan 2021	25 Jan 2021 IBIS models SPI M95xxx Standard EEPROM (-40°C to 85°C) 1.0

Verilog models (2)

	Resource title		Latest update
ZIP	Verilog models I2C EEPROM M24xxx 1.0		28 Jan 2021	28 Jan 2021 Verilog models I2C EEPROM M24xxx 1.0
ZIP	Verilog models SPI EEPROM M95xxx 1.0		28 Jan 2021	28 Jan 2021 Verilog models SPI EEPROM M95xxx 1.0

质量与可靠性

产品型号	Marketing Status	封装	等级规格	符合RoHS级别	材料声明**
M24256-BFDW6TP	批量生产	TSSOP-8L	工业	Ecopack2	PDF XML
M24256-BFMC6TG	批量生产	UFDFPN8	工业	Ecopack2	PDF XML
M24256BFKW20I/90	批量生产	WAFER	工业	N/A	PDF XML