[sdiy-interim] EPROM Armageddon?

Roy J. Tellason rtellason at verizon.net
Wed Mar 28 18:36:15 CEST 2007


On Wednesday 28 March 2007 13:27, Robin Whittle wrote:
>   http://www.computermuseum.li/Testpage/Chip-Intel1702EPROM.htm
>
> I keep telling myself I should read the data from this, a triple supply
> voltage device which ordinary programmers can't read, in case the data
> fades away one day.  This was the earliest EPROM, and it was probably
> programmed about 30 years ago.

There were earlier parts,  but they weren't common.

One thing that sticks in my memory from back then,  the 1702 needed that -9V 
supply to come up _first_ and to go away _last_ or bad things would happen...

I have a few of them,  if anybody needs some,  nice ceramic and gold packages 
just like the picture in the above link.

-- 
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space,  a critter that can
be killed but can't be tamed.  --Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James 
M Dakin

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