Sv: Intel B57684 EPROM

[Jens Jørgen Larsen]

Hello Steve.

Are you sure about the B... number ? I have some Intel proms which are
labeled
B57604;  yes,  there is a slash through the zero, but it is still a zero.
If the number is B57604 then the prom is a 27256.
The way I find out was to read the Silicon Signature ( a electronic ID code
inside
the device). This can be done with a programmer (not all programmers can do
it), I use a Dataman S4.
The readout from S4 is:         Silicon Signature
                                           Signature: 8904 
                                          
                                           Intel 27256
                                           12.75V Burn pin. 1
                                           100uS No overprog.
                                           Alg. 22, Ref 080E

Good luck.

J.J Larsen
Denmark   

----------
> Fra: Buchholz, Steven <Steven.Buchholz at kla-tencor.com>
> Til: 'DIY-EFI' <diy_efi at esl.eng.ohio-state.edu>
> Emne: Re: Intel B57684 EPROM
> Dato: 21. april 1998 03.18
> 
> I tried this direct reply about a week ago ... I'm thinking that it may
> not have made it, so I'm posting it to the list.  My apologies to the
> rest of the list participants!
> 

> > Regards and thanks,
> > Steve Buchholz
> > San Jose, CA (USA)
> > 
> >  
> >