storage devices

noddy

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N

Join Date

Apr 2004

Posts

3

• Apr 30, 2004

• #1

could anyone please help me find any information on Electrically alterable read only memory EAROM

thanks

 

rsdoran

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Apr 2002

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Birmingham, AL

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• Apr 30, 2004

• #2

I have never heard that term. EEPROM is electrically erasable programmable only memory which means it can be modified...ie added to or removed from the memory electrically.

http://www.webopedia.com/TERM/E/EEPROM.html

http://whatis.techtarget.com/definition/0,,sid9_gci213928,00.html

AHH I see now...EAROM is another name for EEPROM
http://www.webopedia.com/TERM/E/EAROM.html

 

Jim Dungar

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J

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Apr 2002

Location

WI

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1,152

• Apr 30, 2004

• #3

The last time I heard the term EAROM was with the old (about 1979)Square D SY/MAX-20 programmable controller which was originally designed in England.

EAROM was a non-volitile memory. I believe sections of an EAROM could be "altered" like RAM rather than a complete erase and reburn like EEPROM.

 

testsubject

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T

Join Date

Feb 2004

Location

Chicago, Il

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839

• May 1, 2004

• #4

Noddy,

This may not be what you are looking for but we have been trying to come up with a way of doing storge for PLCs on the AD forum.

http://forum1.automationdirect.com/board/Forum1/HTML/001053.html

Maybe this may help you.

Bob

 

spentron

Guest

S

• May 18, 2004

• #5

An EAROM may be found as the high score table in Atari arcade machines such as Tempest (1980), in which example most of them don't work anymore, either due to the chip or loss of the charge pump that develops the needed -27 V supply. Old.