M93S66-W

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Product overview

Description

The M93S46, M93S56, M93S66 devices are Electrically Erasable PROgrammable Memories (EEPROMs) organized as 64, 128 or 256 words (one word is 16 bits), accessed through the MICROWIRE bus.

The M93S46, M93S56, M93S66 can operate with a supply voltage from 2.5 V to 5.5 V over an ambient temperature range of -40 °C / +85 °C.

All features
Compatible with MICROWIRE bus serial interface

Memory array

1 Kbit, 2 Kbit or 4 Kbit of EEPROM

Organized by word (16b)

Page = 4 words

Write

Byte write within 5 ms

Page write within 5 ms

Ready/busy signal during programming

User defined write protected area

High-speed clock: 2 MHz

Single supply voltage:

2.5 V to 5.5 V
Operating temperature range: -40 °C up to +85 °C.

Enhanced ESD protection

More than 4 million write cycles

More than 200-year data retention

Packages

PDIP8 ECOPACK^®1

TSSOP8 ECOPACK^®2

SO8 ECOPACK^®2
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All tools & software

Finder Apps

	Part number	Status	Description	Type	Supplier
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Product evaluation tools

	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	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

All resources

	Resource title	Version	Latest update
PDF	DS1108 4 Kbit, 2 Kbit and 1 Kbit serial MICROWIRE bus EEPROM with write protection	7.0	09 Jan 2015	09 Jan 2015 DS1108 4 Kbit, 2 Kbit and 1 Kbit serial MICROWIRE bus EEPROM with write protection 7.0

	Resource title	Version	Latest update
PDF	AN2014 How to best use STMicroelectronics serial EEPROMs	11.0	01 Oct 2024	01 Oct 2024 AN2014 How to best use STMicroelectronics serial EEPROMs 11.0
PDF	AN394 MICROWIRE EEPROM COMMON I/O OPERATION	3.7	28 Mar 2024	28 Mar 2024 AN394 MICROWIRE EEPROM COMMON I/O OPERATION 3.7

	Resource title	Version	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

	Resource title	Version	Latest update
PDF	I²C High density EEPROM with new technology process presentation	25.02	28 Feb 2025	28 Feb 2025 I²C High density EEPROM with new technology process presentation 25.02
PDF	Serial I²C EEPROM in DFN5 package	1.3	27 Jan 2025	27 Jan 2025 Serial I²C EEPROM in DFN5 package 1.3
PDF	presentation-eeprom-solution-wlcsp-package	1.0	12 Jan 2022	12 Jan 2022 presentation-eeprom-solution-wlcsp-package 1.0
PDF	presentation-world-first-4Mbit-spi-eeprom	1.0	14 Jan 2022	14 Jan 2022 presentation-world-first-4Mbit-spi-eeprom 1.0

	Resource title	Version	Latest update
PDF	Serial EEPROM Standard & SPD series	1.0	27 Sep 2021	27 Sep 2021 Serial EEPROM Standard & SPD series 1.0

	Resource title	Version	Latest update
PDF	Semiconductor solutions for healthcare applications	1.0	01 Aug 2015	01 Aug 2015 Semiconductor solutions for healthcare applications 1.0
PDF	Smart grid distribution and smart meters - Energy-efficient solutions	2.0	01 Aug 2015	01 Aug 2015 Smart grid distribution and smart meters - Energy-efficient solutions 2.0

EDA Symbols, Footprints and 3D Models

All resources

	Resource title	Version	Latest update

IBIS models (1)

	Resource title	Version	Latest update
7Z	IBIS models Microwire M93xxx Standard EEPROM	1.1	07 Jun 2023	07 Jun 2023 IBIS models Microwire M93xxx Standard EEPROM 1.1

CAD Symbol & Footprint models (1)

	Resource title	Version	Latest update
ZIP	3D package models EEPROM	1.0	27 Apr 2021	27 Apr 2021 3D package models EEPROM 1.0

Verilog models (1)

	Resource title	Version	Latest update
ZIP	Verilog models SPI EEPROM M95M04	1.0	22 Jan 2021	22 Jan 2021 Verilog models SPI EEPROM M95M04 1.0

Quality and Reliability

Part Number	Marketing Status	Package	Grade	RoHS Compliance Grade	Material Declaration**
M93S66-WMN6TP	Active	SO8	Industrial	Ecopack2	PDF XML

M93S66-WMN6TP

Package:

SO8

Material Declaration**:

PDF XML

More Info

(**) 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

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Marketing Status

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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

min

max

M93S66-WMN6TP

0.4303 / 1k

Buy Direct

Available at 5 distributors

Distributor availability of M93S66-WMN6TP

Distributor Name	Region	Stock	Min. Order	Third party link
Farnell Element14	EUROPE	386	1	Buy from Distributor
MOUSER	WORLDWIDE	21661	1	Buy from Distributor
FUTURE	WORLDWIDE	2500	0	Buy from Distributor
DIGIKEY	WORLDWIDE	32095	1	Buy from Distributor
Newark Element14	AMERICA	861	0	Buy from Distributor

Distributor reported inventory date: 4/1/2025

SO8

Tape and Reel

CHINA

EAR99

NEC

-40

Buy from Distributor

M93S66-WMN6TP Active

Budgetary Price (US$)*/Qty:

0.4303 / 1k

Available at 5 distributors

Buy Direct at ST

Add Free Sample

Package:

SO8

Packing Type:

Tape and Reel

Country of Origin:

CHINA

ECCN (US):

EAR99

ECCN (EU):

NEC

More Info

Swipe or click the button to explore more details Don't show this again

(*) 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

Product overview

Description

All features

All tools & software

Finder Apps

ST EEPROM Finder

Product evaluation tools

X-NUCLEO-EEPRMA2

All resources

Product Specifications (1)

Application Notes (2)

Technical Notes & Articles (1)

Presentations (4)

Selection Guides (1)

Brochures (2)

EDA Symbols, Footprints and 3D Models

All resources

IBIS models (1)

CAD Symbol & Footprint models (1)

Verilog models (1)

Quality and Reliability

Sample & Buy

M93S66-W

Product overview

Description

All features

All tools & software

Finder Apps

ST EEPROM Finder

Product evaluation tools

X-NUCLEO-EEPRMA2

All resources

Product Specifications (1)

Application Notes (2)

Technical Notes & Articles (1)

Presentations (4)

Selection Guides (1)

Brochures (2)

EDA Symbols, Footprints and 3D Models

All resources

IBIS models (1)

CAD Symbol & Footprint models (1)

Verilog models (1)

License Agreement

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Quality and Reliability

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