M93C66-W

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4 Kbit (8-bit or 16-bit wide) MICROWIRE serial access EEPROM

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  • The M93C46 (1 Kbit), M93C56 (2 Kbit), M93C66 (4 Kbit), M93C76 (8 Kbit) and M93C86 (16 Kbit) are Electrically Erasable PROgrammable Memory (EEPROM) devices accessed through the MICROWIRE™ bus protocol. The memory array can be configured either in bytes (x8b) or in words (x16b).

    The M93Cx6-W devices operate within a voltage supply range from 2.5 V to 5.5 V and the M93Cx6-R devices operate within a voltage supply range from 1.8 V to 5.5 V. All these devices operate with a clock frequency of 2 MHz (or less), over an ambient temperature range of - 40 °C / + 85 °C.

    Key Features

    • Industry standard MICROWIRE™ bus
    • Single supply voltage:
      • 2.5 V to 5.5 V for M93Cx6-W
      • 1.8 V to 5.5 V for M93Cx6-R
    • Dual organization: by word (x16) or byte (x8)
    • Programming instructions that work on: byte, word or entire memory
    • Self-timed programming cycle with auto-erase: 5 ms
    • READY/BUSYsignal during programming
    • 2 MHz clock rate
    • Sequential read operation
    • Enhanced ESD/latch-up behavior
    • More than 4 million write cycles
    • More than 200-year data retention
    • Packages
      • SO8, TSSOP8, UFDFPN8 packages: ECOPACK2®)
      • PDIP8 package: ECOPACK1®

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Part Number
Replacement Product
Package
Packing Type
Temperature (°C) Marketing Status
ECCN (US)
Country of Origin
Budgetary Price (US$)*/Qty
Order from ST
Order from Distributors
min
max
M93C66-WMN6TP - SO8 Tape And Reel -40 85
Active
EAR99 CHINA 0.142 / 1k Buy now Check Availability

Distributor availability ofM93C66-WMN6TP

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2699 1 Order Now
COMPEL EUROPE 3156 1 Order Now
RS COMPONENTS EUROPE 2875 25 Order Now
AVNET AMERICA 45000 0 Order Now
FUTURE WORLDWIDE 5722 1 Order Now
ARROW EUROPE 492500 0 Order Now
MOUSER WORLDWIDE 3436 1 Order Now
Farnell Element14 EUROPE 4360 1 Order Now
RUTRONIK EUROPE 5000 2500 Order Now

Distributor reported inventory date: 2020-05-17

Distributor Name

DIGIKEY

Stock

2699

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

3156

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

2875

Min.Order

25

Region

EUROPE Order Now

AVNET

Stock

45000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

5722

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

492500

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

3436

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4360

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

5000

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2020-05-17

M93C66-WDW6TP - TSSOP8 Tape And Reel -40 85
Active
EAR99 CHINA 0.1498 / 1k Buy now Check Availability

Distributor availability ofM93C66-WDW6TP

Distributor Name
Region Stock Min. Order Third party link
COMPEL EUROPE 1387 1 Order Now
MOUSER WORLDWIDE 3821 1 Order Now

Distributor reported inventory date: 2020-05-17

Distributor Name

COMPEL

Stock

1387

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

3821

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-05-17

M93C66-WMN6TP

Replacement Product

-

Package

SO8

Budgetary Price (US$)*/Qty

0.142 / 1k

Distributor availability ofM93C66-WMN6TP

Distributor Name
Region Stock Min. Order Third party link
DIGIKEY WORLDWIDE 2699 1 Order Now
COMPEL EUROPE 3156 1 Order Now
RS COMPONENTS EUROPE 2875 25 Order Now
AVNET AMERICA 45000 0 Order Now
FUTURE WORLDWIDE 5722 1 Order Now
ARROW EUROPE 492500 0 Order Now
MOUSER WORLDWIDE 3436 1 Order Now
Farnell Element14 EUROPE 4360 1 Order Now
RUTRONIK EUROPE 5000 2500 Order Now

Distributor reported inventory date: 2020-05-17

Distributor Name

DIGIKEY

Stock

2699

Min.Order

1

Region

WORLDWIDE Order Now

COMPEL

Stock

3156

Min.Order

1

Region

EUROPE Order Now

RS COMPONENTS

Stock

2875

Min.Order

25

Region

EUROPE Order Now

AVNET

Stock

45000

Min.Order

0

Region

AMERICA Order Now

FUTURE

Stock

5722

Min.Order

1

Region

WORLDWIDE Order Now

ARROW

Stock

492500

Min.Order

0

Region

EUROPE Order Now

MOUSER

Stock

3436

Min.Order

1

Region

WORLDWIDE Order Now

Farnell Element14

Stock

4360

Min.Order

1

Region

EUROPE Order Now

RUTRONIK

Stock

5000

Min.Order

2500

Region

EUROPE Order Now

Distributor reported inventory date: 2020-05-17

Packing Type

Tape And Reel

Operating Temperature (°C)

(min)

-40

(max)

85

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.142 / 1k

ECCN (US)

EAR99

Country of Origin

CHINA

M93C66-WDW6TP

Replacement Product

-

Package

TSSOP8

Budgetary Price (US$)*/Qty

0.1498 / 1k

Distributor availability ofM93C66-WDW6TP

Distributor Name
Region Stock Min. Order Third party link
COMPEL EUROPE 1387 1 Order Now
MOUSER WORLDWIDE 3821 1 Order Now

Distributor reported inventory date: 2020-05-17

Distributor Name

COMPEL

Stock

1387

Min.Order

1

Region

EUROPE Order Now

MOUSER

Stock

3821

Min.Order

1

Region

WORLDWIDE Order Now

Distributor reported inventory date: 2020-05-17

Packing Type

Tape And Reel

Operating Temperature (°C)

(min)

-40

(max)

85

Marketing Status

Active

Budgetary Price (US$)* / Qty

0.1498 / 1k

ECCN (US)

EAR99

Country of Origin

CHINA

(*) 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

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Technical Documentation

    • Description Version Size Action
      DS1077
      16-Kbit, 8-Kbit, 4-Kbit, 2-Kbit and 1-Kbit (8-bit or 16-bit wide) MICROWIRE™ serial access EEPROM
      17.0
      1.23 MB
      PDF
      DS1077

      16-Kbit, 8-Kbit, 4-Kbit, 2-Kbit and 1-Kbit (8-bit or 16-bit wide) MICROWIRE™ serial access EEPROM

    • Description Version Size Action
      AN2014
      How a designer can make the most of STMicroelectronics Serial EEPROMs
      10.1
      1.13 MB
      PDF
      AN394
      MICROWIRE EEPROM COMMON I/O OPERATION
      3.5
      72.25 KB
      PDF
      AN2014

      How a designer can make the most of STMicroelectronics Serial EEPROMs

      AN394

      MICROWIRE EEPROM COMMON I/O OPERATION

    • Description Version Size Action
      TN1171
      Description of UFDFPN5, UFDFPN8 and WFDFPN8 for STMicroelectronics EEPROMs and recommendations for use
      3.0
      574.55 KB
      PDF
      TN1171

      Description of UFDFPN5, UFDFPN8 and WFDFPN8 for STMicroelectronics EEPROMs and recommendations for use

HW Model, CAD Libraries & SVD

    • Description Version Size Action
      3D_MODEL_EEPROM_ALL_PACKAGES 1.0
      160.28 KB
      ZIP
      IBIS model SPI M95xxx Standard EEPROM (-40 degC to 85 degC) 5.0
      4.92 MB
      ZIP
      Verilog model I2C EEPROM M24XXX 2.0
      18.97 KB
      ZIP
      Verilog model SPI EEPROM M95XXX 2.2
      57.49 KB
      ZIP

      3D_MODEL_EEPROM_ALL_PACKAGES

      IBIS model SPI M95xxx Standard EEPROM (-40 degC to 85 degC)

      Verilog model I2C EEPROM M24XXX

      Verilog model SPI EEPROM M95XXX

Presentations & Training Material

    • Description Version Size Action
      EEPROM in WLCSP July 2016 1.4
      281.42 KB
      PDF
      I2C EEPROM in DFN5 small package 1.0
      555.19 KB
      PDF
      Standard Serial EEPROM presentation 1.0
      545.36 KB
      PDF
      World first 4Mbit SPI EEPROM presentation 1.0
      335.78 KB
      PDF

      EEPROM in WLCSP July 2016

      I2C EEPROM in DFN5 small package

      Standard Serial EEPROM presentation

      World first 4Mbit SPI EEPROM presentation

Publications and Collaterals

    • Description Version Size Action
      Serial EEPROM 1.0
      1.73 MB
      PDF

      Serial EEPROM

    • Description Version Size Action
      Products and solutions for solar energy 1.0
      1.29 MB
      PDF
      Semiconductor solutions for healthcare applications 1.0
      665.18 KB
      PDF
      Smart grid distribution and smart meters - Energy-efficient solutions 2.0
      1.58 MB
      PDF

      Products and solutions for solar energy

      Semiconductor solutions for healthcare applications

      Smart grid distribution and smart meters - Energy-efficient solutions

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
M93C66-WDW6TP
Active
TSSOP8 Industrial Ecopack2
M93C66-WMN6TP
Active
SO8 Industrial Ecopack2

M93C66-WDW6TP

Package:

TSSOP8

Material Declaration**:

PDF XML

Marketing Status

Active

Package

TSSOP8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

M93C66-WMN6TP

Package:

SO8

Material Declaration**:

PDF XML

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.