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You are here: Home / Topics / parallel EEPROM AT28C16 with 8051

parallel EEPROM AT28C16 with 8051

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Microcontroller › 8051 › parallel EEPROM AT28C16 with 8051

  • This topic has 4 replies, 4 voices, and was last updated 9 years, 9 months ago by Ashutosh Bhatt.
Viewing 5 posts - 1 through 5 (of 5 total)
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    Posts
  • May 1, 2012 at 5:03 am #1781
    amol chaudhari
    Participant

    Someone please help me out in interfacing parallel EEPROM 28C16 with 8051.
    using latch 74373, i want to multiplex address and data on port P0.
    I am using C coding..
    Can it be done using XBYTE [] instruction and ALE pin as latch pulse
    or using 1 port pin for latch control is better?

    May 13, 2012 at 1:26 pm #7761
    Randall G. Allman
    Participant

    For proper timing use ALE.

    May 13, 2012 at 1:26 pm #7781
    Randall G. Allman
    Participant

    For proper timing use ALE.

    September 19, 2015 at 8:23 pm #13307
    pankaj kumar chanda
    Participant

    XDATA is used for RAM then how will it work for ROM . what will happen if we connect both external RAM and ROM  in which memory will XDATA variable be stored.and how to save in other memory then be it rom or ram

    September 23, 2015 at 5:33 pm #13320
    Ashutosh Bhatt
    Participant

    first tell me why do u require additional EEPROM?

    internal memory is not enough? AT89C52 has 8K internal EEPROM. still u need external memory?

    even u can use P89V51RD2 with 64K internal EEPROM

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