Prom/eeprom

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  • Rob Northen
    Senior Member
    • Jan 2010
    • 137
    • Denmark
    #1

    Prom/eeprom

    I know, its not about caps..

    But, mabye someone can help anyway.
    When looking at the datasheet for an Atmel AT28C256 EEPROM (PLCC) it seems pin compatible with a normal OTP PLCC PROM. But, when using the EEPROM, my device is not working.
    Any ideas ??
    Tags: None
    • japlytic
      Badcaps Legend
      • Oct 2005
      • 2085
      • Australia
      #2
      Re: Prom/eeprom

      The AT28C256 has a different pin configuration to a normal OTP PLCC PROM.
      However, an SST27SF256 (many time programmable) is pin-compatible with a normal OTP PLCC PROM.
      My first choice in quality Japanese electrolytics is Nippon Chemi-Con, which has been in business since 1931... the quality of electronics is dependent on the quality of the electrolytics.

        Comment

        • kikkoman
          Badcaps Veteran
          • Jul 2007
          • 691
          #3
          Re: Prom/eeprom

          check the voltage levels (supply and signal), they vary a lot between the different families.
          "Every normal man must be tempted at times to spit on his hands, hoist the black flag, and begin slitting throats." - H.L. Mencken

            Comment

            • Rob Northen
              Senior Member
              • Jan 2010
              • 137
              • Denmark
              #4
              Re: Prom/eeprom

              Thanks for the help!
              I'll look into the SST27SF256

                Comment

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