Product overview
Description
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.
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All 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)
- Compatible with following I2C bus modes:
- Packages
All tools & software
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Part number Status Description Type Supplier Worldwide,Asia,Europe,Africa,North America,South America,Oceania,Afghanistan,Bahrain,Bangladesh,Bhutan,Brunei,Burma (Myanmar),Cambodia,China,East Timor,India,Indonesia,Iraq,Japan,Jordan,Kazakhstan,Kuwait,Kyrgyzstan,Laos,Malaysia,Maldives,Mongolia,Nepal,Oman,Pakistan,Philippines,Qatar,Russian Federation,Saudi Arabia,Singapore,South Korea,Sri Lanka,Taiwan,Tajikistan,Thailand,Turkmenistan,United Arab Emirates,Uzbekistan,Vietnam,Yemen,Albania,Andorra,Armenia,Austria,Azerbaijan,Belarus,Belgium,Bosnia and Herzegovina,Bulgaria,Croatia,Cyprus,Czech Republic,Denmark,Estonia,Finland,France,Georgia,Germany,Greece,Hungary,Iceland,Ireland,Israel,Italy,Latvia,Liechtenstein,Lithuania,Luxembourg,Macedonia,Malta,Moldova,Monaco,Montenegro,Netherlands,Norway,Poland,Portugal,Romania,San Marino,Serbia,Slovakia,Slovenia,Spain,Sweden,Switzerland,Turkey,Ukraine,United Kingdom,Vatican City,Algeria,Angola,Benin,Botswana,Burkina,Burundi,Cameroon,Cape Verde,Central African Republic,Chad,Comoros,Democratic Republic of Congo,Djibouti,Egypt,Equatorial Guinea,Eritrea,Ethiopia,Gabon,Gambia,Ghana,Guinea,Guinea-Bissau,Ivory Coast,Kenya,Lesotho,Liberia,Libya,Madagascar,Malawi,Mali,Mauritania,Mauritius,Morocco,Mozambique,Namibia,Niger,Nigeria,Rwanda,Sao Tome and Principe,Senegal,Seychelles,Sierra Leone,Somalia,South Africa,Swaziland,Tanzania,Togo,Tunisia,Uganda,Zambia,Zimbabwe,Antigua and Barbuda,Bahamas,Barbados,Belize,Canada,Costa Rica,Dominica,Dominican Republic,El Salvador,Grenada,Guatemala,Haiti,Honduras,Jamaica,Mexico,Nicaragua,Panama,Saint Kitts and Nevis,Saint Lucia,Saint Vincent and the Grenadines,Trinidad and Tobago,United States,Argentina,Bolivia,Brazil,Chile,Colombia,Ecuador,Guyana,Paraguay,Peru,Suriname,Uruguay,Venezuela,Australia,Fiji,Kiribati,Marshall Islands,Micronesia,Nauru,New Zealand,Palau,Papua New Guinea,Samoa,Solomon Islands,Tonga,Tuvalu,Vanuatu X-NUCLEO-EEPRMA2
ActiveStandard I²C and SPI EEPROM memory expansion board based on M24xx and M95xx series for STM32 Nucleo
STM32 Nucleo expansion boards ST X-NUCLEO-EEPRMA2Description:
Standard I²C and SPI EEPROM memory expansion board based on M24xx and M95xx series for STM32 Nucleo
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All resources
Resource title | Version | Latest update |
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Product Specifications (1)
Resource title | Version | Latest update | ||
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35.0 | 27 Nov 2020 | 27 Nov 2020 |
Application Notes (4)
Resource title | Version | Latest update | ||
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1.0 | 18 Dec 2024 | 18 Dec 2024 | ||
11.0 | 01 Oct 2024 | 01 Oct 2024 | ||
1.7 | 01 Jan 2022 | 01 Jan 2022 | ||
4.6 | 18 Dec 2024 | 18 Dec 2024 |
Technical Notes & Articles (2)
Resource title | Version | Latest update | ||
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3.0 | 01 Dec 2014 | 01 Dec 2014 | ||
2.1 | 24 Dec 2019 | 24 Dec 2019 |
Presentations (4)
Resource title | Version | Latest update | ||
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25.02 | 28 Feb 2025 | 28 Feb 2025 | ||
1.3 | 27 Jan 2025 | 27 Jan 2025 | ||
1.0 | 12 Jan 2022 | 12 Jan 2022 | ||
1.0 | 14 Jan 2022 | 14 Jan 2022 |
Selection Guides (1)
Resource title | Version | Latest update | ||
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1.0 | 27 Sep 2021 | 27 Sep 2021 |
Brochures (2)
Resource title | Version | Latest update | ||
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1.0 | 01 Aug 2015 | 01 Aug 2015 | ||
2.0 | 01 Aug 2015 | 01 Aug 2015 |
EDA Symbols, Footprints and 3D Models
STMicroelectronics - M24256-BW
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Symbols
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Footprints
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3D models
All resources
Resource title | Version | Latest update |
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IBIS models (1)
Resource title | Version | Latest update | ||
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ZIP | 1.1 | 25 Jan 2021 | 25 Jan 2021 |
CAD Symbol & Footprint models (1)
Resource title | Version | Latest update | ||
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ZIP | 1.0 | 27 Apr 2021 | 27 Apr 2021 |
Verilog models (2)
Resource title | Version | Latest update | ||
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ZIP | 1.0 | 28 Jan 2021 | 28 Jan 2021 | |
ZIP | 1.0 | 22 Jan 2021 | 22 Jan 2021 |
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Quality and Reliability
Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
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M24256-BWDW6TP | NRND | TSSOP-8L | Industrial | Ecopack2 | |
M24256-BWMN6TP | NRND | SO8 | Industrial | Ecopack2 |
Marketing Status
Package
TSSOP-8L
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 | Marketing Status | Budgetary Price (US$)*/Qty | Order from ST | Order from distributors | Package | Packing Type | RoHS | Country of Origin | ECCN (US) | ECCN (EU) | Operating temperature (°C) | Operating Temperature (°C) (max) | Free Samples | ESample Max Qty | Replacement Product | |||||||||||||||||||||||||||||||||||||||||
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min | max | |||||||||||||||||||||||||||||||||||||||||||||||||||||||
M24256-BWDW6TP | NRND | 0.2725 / 1k | Available at 5 distributors Distributor availability of M24256-BWDW6TP
Distributor reported inventory date: 2/28/2025 | | | | Buy from Distributor | | TSSOP-8L | Tape and Reel | CHINA | EAR99 | NEC | -40 | 85 |
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| M24256 BRDW6TP | ||||||||||||||||||||||||||||||||||||||
M24256-BWMN6TP | NRND | 0.2283 / 1k | Available at 6 distributors Distributor availability of M24256-BWMN6TP
Distributor reported inventory date: 2/28/2025 | | | | Buy from Distributor | | SO8 | Tape and Reel | CHINA | EAR99 | NEC | -40 | 85 |
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| M24256-BRMN6TP |
M24256-BWDW6TP NRND
Part Number:
M24256-BWDW6TP
Operating Temperature (°C)
Min:
-40
Max:
85
Free Samples:
-
ESample Max Qty:
-
Replacement Product:
M24256 BRDW6TP
MOUSER
Stock
4140Min.Order
1FUTURE
Stock
4000Min.Order
0AVNET
Stock
72000Min.Order
0DIGIKEY
Stock
1915Min.Order
1Newark Element14
Stock
1Min.Order
0Distributor reported inventory date: 2/28/2025
Stock
Min.Order
M24256-BWMN6TP NRND
Part Number:
M24256-BWMN6TP
Operating Temperature (°C)
Min:
-40
Max:
85
Free Samples:
-
ESample Max Qty:
-
Replacement Product:
M24256-BRMN6TP
P&S
Stock
3Min.Order
1ANGLIA Live
Stock
3970Min.Order
10MOUSER
Stock
6123Min.Order
1FUTURE
Stock
35000Min.Order
0AVNET
Stock
32500Min.Order
0DIGIKEY
Stock
9109Min.Order
1Distributor reported inventory date: 2/28/2025
Stock
Min.Order
(*) 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