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memory

Hi dazheng,

Need to know ... what is EEPROM used in MCU for ?. I know EEPROM stand for Electrical Erasable Programming ROM but I need to know what's the purpose or where it going to be used in MCU?

I ask this because some of MCU dont have EEPROM ( EEPROM = 0 byte) ie 80NC535 & 80NC321 and the best thing about this MCU (without EEPROM) that's its cheaper than MCU with EEPROM. If it just minor used and can solve it in other method (and not effect my project) , I will use it as I need to lower the cost as much as possible.

Any instruction (ie in proton) that must be used on MCU with EEPROM ?

More explanation greatly appreciated.

Thanks

zuisti

Parents
  • you
    need
    to
    know
    the
    maximum
    voltage
    across
    the
    capacitor
    in
    your
    application
    .
    for
    example
    if
    you
    put
    the
    capacitor
    in
    parallel
    with
    the
    voltage
    source,
    you
    choose
    the
    voltage
    capacitor
    higher
    than
    the
    voltage
    source.
    Vsource=12V
    ->
    Vcap=16V
    tipical
    values
    of
    voltage
    are
    6.3V,
    16V,
    50V
    this
    are
    normalized
    
    And
    you
    need
    to
    know
    the
    maximum
    current
    in
    your
    application.
    For
    example
    if
    your
    power
    supply
    is
    for
    1A
    current
    it
    might
    be
    nessesery
    to
    take
    100uF
    capacitor
    for
    higher
    voltage
    because
    they
    are
    more
    powerfull
    and
    you
    will
    can
    get
    hier
    curr
    ent
    from
    them
    and
    can
    blow
    youre
    socks
    off!
    

Reply
  • you
    need
    to
    know
    the
    maximum
    voltage
    across
    the
    capacitor
    in
    your
    application
    .
    for
    example
    if
    you
    put
    the
    capacitor
    in
    parallel
    with
    the
    voltage
    source,
    you
    choose
    the
    voltage
    capacitor
    higher
    than
    the
    voltage
    source.
    Vsource=12V
    ->
    Vcap=16V
    tipical
    values
    of
    voltage
    are
    6.3V,
    16V,
    50V
    this
    are
    normalized
    
    And
    you
    need
    to
    know
    the
    maximum
    current
    in
    your
    application.
    For
    example
    if
    your
    power
    supply
    is
    for
    1A
    current
    it
    might
    be
    nessesery
    to
    take
    100uF
    capacitor
    for
    higher
    voltage
    because
    they
    are
    more
    powerfull
    and
    you
    will
    can
    get
    hier
    curr
    ent
    from
    them
    and
    can
    blow
    youre
    socks
    off!
    

Children