View Single Post
  #31   Report Post  
Posted to sci.electronics.design,sci.electronics.equipment,sci.electronics.repair
JosephKK[_2_] JosephKK[_2_] is offline
external usenet poster
 
Posts: 80
Default Please need help about 2708 eprom...

On Wed, 4 Jun 2008 20:49:25 -0700 (PDT), mpm
wrote:

On Jun 4, 9:40?pm, "JA" formula1vhs@ TOGLIMI hotmail.com wrote:
hi guys!
I need to have an obsolete 2708 eprom programmer-reader..
It's very difficult to find modern eprom programmers that do this!
I have buyed a willeim but it does everithing but 2708!!
Well if it's possible i would make one.
I'm very good skinned as electronic handy man , but i can't know how to make
it.
Can someone help me?
And if someone got an old eprom programmer let me know!


Can't you just cobble up an adapter to treat your 2708 as if it were a
larger memory device.
So what if the high read addresses come us as "00" or "FF" Hex.
Just edit it with a text editor. Or am I missing something here?

-mpm


That is one of the few things that will not work, the -5V supply is
required. But then, a widget to make a 2708 look like a broken
2716 is possible.