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    #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 ??
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    #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.

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      #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

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        #4
        Re: Prom/eeprom

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

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