Roger,



2008/11/7 Roger Weichert <rweicher@bigpond.net.au>:
>
> .
>>
>> Could you post the link of the datasheet?
>>
>> Google shows this one.
>> http://pdf1.alldatasheet.net/datasheet-pdf/view/101234/NEC/UPD78233GC-3B9.html
>>
>> It has 16KB internal program ROM.
>>
>> Xiaofan
>> --
>
>
> Hi Xiaofan,  thanks for the reply. Here's a link to the pdf.
>
> http://pdf1.alldatasheet.net/datasheet-pdf/view/101234/NEC/UPD78233GC-3B9.html
>
> Page one shows that the uPD78233GC is 'ROMless' ... and that the 234 has 16k
> Mask ROM   ...  and the 78238 has 32K of OTP ROM.
>
> That's why I was hoping that just replacing the chip would solve my problem
> ...  unless my understanding is wrong?
>
> Thanks, RDW
>

At $A1600 per board, what are you going to loose by trying it?
Looks to me like it would be well worth the time spent.

RP
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