Connect with us

24Cxxx I2C EEPROM

Discussion in 'Electronic Design' started by Octavio, Jun 7, 2007.

Scroll to continue with content
  1. Octavio

    Octavio Guest

    Looking at few datasheets, I can't tell if these small EEPROM chips have
    internal ESD protection diodes to Vcc and to ground.

    Do they have these ESD protections?

    Octavio
     
  2. Donald

    Donald Guest

    I don't think I have ever seen an 24c device with ESD protection.

    But then again, I don't think I would ever connect a 24c device in a way
    that ESD would ever get to it.

    ESD concerns implies you want the part connected to the outside world
    somewhere !!

    Why would you do that ??!!

    donald
     
  3. Eeyore

    Eeyore Guest

    You didn't look very far did you ?

    • ESD protection > 4,000V

    From Microchip data on the 24C08 for example.

    This is for ESD protection during handling / assembly only btw.

    Graham
     
  4. Almost always CMOS chips have such diodes. Failing that, some other
    kind of protection structure on the inputs, or they might never make
    it through the assembly process.

    You can usually tell from the electrical characteristics.. absolute
    maximum ratings for inputs and outputs. If it's Vdd + X where X is
    around a diode drop, you have your answer.



    Best regards,
    Spehro Pefhany
     

  5. How do you think your computer knows what monitor you're using?
    Several lines to a 24CxxxEEPROM are exposed at the HDE-15 connector.


    --
    Service to my country? Been there, Done that, and I've got my DD214 to
    prove it.
    Member of DAV #85.

    Michael A. Terrell
    Central Florida
     
  6. Donald

    Donald Guest

    I'll have to open my monitor and find out. ;-)
     

  7. There are plenty of schematics online.


    --
    Service to my country? Been there, Done that, and I've got my DD214 to
    prove it.
    Member of DAV #85.

    Michael A. Terrell
    Central Florida
     
  8. Donald

    Donald Guest

    I looked at Atmel 24C08 and 24C32.
    http://www.atmel.com/dyn/resources/prod_documents/doc0180.pdf
    http://www.atmel.com/dyn/resources/prod_documents/doc0336.pdf

    One data sheet for the 24C08 did say ESD to 4000V,
    however the 24C0x and 24C32 datasheets from the Atmel site never
    mentions ESD.

    go figure

    donald
     
  9. Eeyore

    Eeyore Guest

Ask a Question
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments (here). After that, you can post your question and our members will help you out.
Electronics Point Logo
Continue to site
Quote of the day

-