replace an EPROM with an EEPROM?

[David A. Cooley]

There may be problems...  there are CE and PGM on the 28256, Guess if you
pulled it to reprogram, it would be a little easier than erasing a UV eprom.  

At 10:43 AM 1/31/99 +1100, you wrote:
>
>
>>Pinouts are different... 27C256 is a 28 pin, 28256 is a 32 pin...
>
>
>But electrically would it work?, an adaptor would be no prob really.
>I assume the extra pins are for re-programming?.
>I agree with Ted, this method would save so much time.
>
>>At 05:06 PM 1/29/99 -0500, you wrote:
>>>Has anyone tried to replace an Eprom with and EEprom?
>>>Specifically, Replace the 27c256 in a Memcal with a 28256?
>>>Does anyone know if it would work?  or is the pinout somehow different?
>>>The reason I'm interested in doing this is because it would be more
>economical
>>>and efficient.
>>>
>>>Also, what do people do about removing and replacing their Eproms from the
>>>Memcals when reprogramming them?  Do you solder in ZIF sockets?
>>>
>>>I want to start lookin at and modifying my Memcal, but have never done any
>of
>>>this stuff before.
>>>
>>>Thanks,
>>>Ted
>>
>>===========================================================
>>           David Cooley N5XMT           Internet: N5XMT at bellsouth.net
>>     Packet: N5XMT at KQ4LO.#INT.NC.USA.NA   T.A.P.R. Member #7068
>>       I am Pentium of Borg...division is futile...you will be
>approximated.
>>===========================================================
>>
>

===========================================================
           David Cooley N5XMT           Internet: N5XMT at bellsouth.net
     Packet: N5XMT at KQ4LO.#INT.NC.USA.NA   T.A.P.R. Member #7068
       I am Pentium of Borg...division is futile...you will be approximated.
===========================================================