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At89c2051 help

Discussion in '8051/8951' started by aamir1, May 9, 2013.

  1. aamir1

    aamir1 Member

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    HI GUYZ !! does the uC at89c2051 has an internal eeprom ??? or i have to use an nvram for data storage ?? i am confused as the datasheet says

    The AT89C2051 is a low-voltage, high-performance CMOS 8-bit microcomputer with
    2K Bytes of Flash programmable and erasable read only memory (PEROM). The
    device is manufactured using Atmel’s high density nonvolatile memory technology
    and is compatible with the industry standard MCS-51™ instruction set.

    what does this mean does it have a eeprom in it ???
     
  2. ericgibbs

    ericgibbs Well-Known Member Most Helpful Member

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    hi,
    I dont use that MCU

    but I read the spec as 2K Bytes of Flash programmable and erasable read only memory

    Looking at the Flash programming modes suggests that when it has been programmed it requires a complete/full memory Erase.

    No Byte Write/Erase over write option.??
     

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