EPROM Data.

Tom Cheung tcheung at associated-labels.com
Fri Feb 15 21:51:13 GMT 2002


the TMS27C256-15 is a faster chip and will work fine
actually any 27c256 eprom will work as long as the speed is equal or faster
i would guess even a slightly slower chip should work as well


Tom

----- Original Message -----
From: <pshurvell at tiofi.com.au>
To: <DIY_EFI at lists.diy-efi.org>
Sent: Wednesday, February 13, 2002 5:53 PM
Subject: EPROM Data.


> Hi all. I am new to the list an I am after some info on EPROMs for my
> Webber Marelli EFI system. Basically I want to be able to copy the EPROM
> from the ECU using my PC and an EPROM programmer and then   program it to
> another chip. What I need to know is how the speed of an EPROM is rated.
> The EPROM in my ECU is a Texas Instruments TMS27C256-20. Unfortunately I
am
> unable to obtain this chip locally. I can however get a TMS27C256-15 for
> the right price (ie free :o) ) locally. Is the time factor a read time,
and
> if so does that mean the 100ns chip is faster than the 200ns chip?
> Would I be able to use the faster chip in my ECU?
> Any help that could be offered would be much appreciated. Even a link to a
> site that has the data I need would be great.
> Thanks for being patient with me.
> Regards to all.
> Paul Shurvell.
>
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