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

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/BUSY signal 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®

Resources

Technical Documentation

Product Specifications
Description Version Size
DS1077 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 MB
Application Notes
Description Version Size
AN394 AN394: MICROWIRE EEPROM COMMON I/O OPERATION 3.4 72 KB
Technical Notes & Articles
Description Version Size
TN1171 TN1171: Description of UFDFPN5, UFDFPN8 and WFDFPN8 for STMicroelectronics EEPROMs and recommendations for use 3.0 574 KB

HW Model, CAD Libraries & SVD

HW Model, CAD Libraries & SVD
Description Version Size
IBIS model SPI M95xxx Standard EEPROM (-40 degC to 85 degC) 5.0 4 MB
Verilog model I2C EEPROM M24XXX 2.0 18 KB
Verilog model SPI EEPROM M95XXX 2.1 62 KB

Presentations & Training Material

Presentations
Description Version Size
EEPROM general presentation 1.0 627 KB
EEPROM in UFDFPN5 1.0 527 KB
EEPROM in WLCSP July 2016 1.4 281 KB

Publications and Collaterals

Flyers
Description Version Size
DFN5 package offer 1.0 555 KB
Serial EEPROM 1.0 1 MB
Selection Guides
Description Version Size
EEPROM selection guide 2 843 KB
Brochures
Description Version Size
Products and solutions for solar energy 1.0 1 MB
Semiconductor solutions for healthcare applications 1.0 665 KB
Smart grid distribution and smart meters - Energy-efficient solutions 2.0 1 MB
Support & Community

Sample & Buy

Part Number Replacement Product Package Packing Type Operating Temperature (°C) (min) Operating Temperature (°C) (max) Marketing Status Unit Price (US$) * Quantity ECCN (EU) ECCN (US) Country of Origin More info Order from ST Order from Distributors
M93C46-WDW6TP - TSSOP8 Tape And Reel -40 85 Active 0.095 1000 NEC EAR99 CHINA MORE INFO Get Sample Add to cart DISTRIBUTOR AVAILABILITY
M93C46-WMN6TP - SO8 Tape And Reel -40 85 Active 0.095 1000 NEC EAR99 CHINA MORE INFO DISTRIBUTOR AVAILABILITY
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(*) 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

Quality & Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
M93C46-WDW6TP ActiveTSSOP8IndustrialEcopack2 0 0
M93C46-WMN6TP ActiveSO8IndustrialEcopack2 0 0
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(**) 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.

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