EEPROM Write Cycles

[Thomas Hauff]

Hello All
I’m working with a PIC16F876.
Does any one know how many millions or trillions of read cycles the EEPROM is good for?
Or as far as reading it is just like program area flash memory.
I know that the Data sheet points out that the write cycle endurance is min 100K.
But no data on the read endurance.
Can I assume that it is trillions of cycles?
Can some one point me to some MicroChip data some place.

Thank you All
___________________________
This message was ported from CCS's old forum
Original Post ID: 12845

[PCM programmer]

:=Hello All
:=I’m working with a PIC16F876.
:=Does any one know how many millions or trillions of read cycles the EEPROM is good for?
:=Or as far as reading it is just like program area flash memory.
:=I know that the Data sheet points out that the write cycle endurance is min 100K.
:=But no data on the read endurance.
:=Can I assume that it is trillions of cycles?
:=Can some one point me to some MicroChip data some place.
:=
---------------------------------------------------------
In AN601, at the bottom-left side of page 2, it says that
reads do not affect endurance.
<a href="http://www.microchip.com/download/appnote/eeproms/00601.pdf" TARGET="_blank">http://www.microchip.com/download/appnote/eeproms/00601.pdf</a>
The author says that ferromagnetic EEPROMs can have their
endurance affected by reads. But I don't believe Microchip
uses this technology (Ramtron does). So I think Microchip
EEPROM, whether in a PIC or a separate package, can be
read any number of times, without having any endurance problem.
___________________________
This message was ported from CCS's old forum
Original Post ID: 12847

[Thomas Hauff]

:=:=Hello All
:=:=I’m working with a PIC16F876.
:=:=Does any one know how many millions or trillions of read cycles the EEPROM is good for?
:=:=Or as far as reading it is just like program area flash memory.
:=:=I know that the Data sheet points out that the write cycle endurance is min 100K.
:=:=But no data on the read endurance.
:=:=Can I assume that it is trillions of cycles?
:=:=Can some one point me to some MicroChip data some place.
:=:=
:=---------------------------------------------------------
:=In AN601, at the bottom-left side of page 2, it says that
:=reads do not affect endurance.
:= <a href="http://www.microchip.com/download/appnote/eeproms/00601.pdf" TARGET="_blank"> <a href="http://www.microchip.com/download/appnote/eeproms/00601.pdf" TARGET="_blank">http://www.microchip.com/download/appnote/eeproms/00601.pdf</a></a>
:=The author says that ferromagnetic EEPROMs can have their
:=endurance affected by reads. But I don't believe Microchip
:=uses this technology (Ramtron does). So I think Microchip
:=EEPROM, whether in a PIC or a separate package, can be
:=read any number of times, without having any endurance problem.

Thank You PCM programmer for the help!
___________________________
This message was ported from CCS's old forum
Original Post ID: 12848