Re: 74S288 Prom compatibility question

How does the Stag allow you to choose a device? On the Data I/O, I
have to pick manufacturer first, then part. Does the Stag support the
National Semi DM74S228N?

 jS

Kevin Moore wrote:
> I recall having similar problems with my Stag eclipse. Unfortunately
> the TI chip wasn't supported, and I wasn't able to find an equivalent
> under the Stag device list. I'm sure they've updated it by now. But
> like Mark said, they are meant to be read the same, just not always
> written the same.
>
> The problem I have, is that I have about 4 tempest aux boards that
> need proms, and they are kinda pricey $6 when you need 6-7 proms per
> board. It's cheaper to just find an Aux board with them.
>
> Unless someone knows of a cheaper source for proms.
>
> Kevin
>
>
> On Wed, Jan 20, 2010 at 2:49 PM, John Robertson <pinball@telus.net
> <mailto:pinball@telus.net>> wrote:
>
> There is a Data I/O mail list on Yahoo:
>
> http://groups.yahoo.com/group/Data_IO_EPROM/join
>
> John :-#)#
>
>
> Mark Shostak wrote:
>> The data i/o can program that device. You need the correct
>> algorithm disk, which I have for the Unisite. Unfortunately I
>> don't think my unisite disks will work in the 2900. I'm not sure
>> which 2900 disks I have, but I'll look when I get time.
>>
>> PROM programming is generally not the same between device
>> manufacturers, although reading of course, is. Which explains the
>> symptoms you're seeing.
>>
>> -Mark
>>
>> On Wed, Jan 20, 2010 at 1:32 PM, js@cimmeri.com
>> <mailto:js@cimmeri.com> <js@cimmeri.com <mailto:js@cimmeri.com>>
>> wrote:
>>
>>
>> Typo, sorry, Mark. The correct TI number is SN74S288N.
>>
>> Mark Shostak wrote:
>>
>> SN74S88N? Is that the correct p/n?
>>
>> On Wed, Jan 20, 2010 at 10:35 AM, js@cimmeri.com
>> <mailto:js@cimmeri.com> <mailto:js@cimmeri.com
>> <mailto:js@cimmeri.com>> <js@cimmeri.com
>> <mailto:js@cimmeri.com> <mailto:js@cimmeri.com
>> <mailto:js@cimmeri.com>>> wrote:
>>
>>
>> Hi folks. Trying to create a backup copy of a game
>> board's
>> National Semi DM74S288N 32x8 bit prom into what I
>> believe is the
>> equivalent chip, a TI SN74S88N. Yet, my Data I/O
>> 2900 and Optima
>> burners -- both of which only list the Nat Semi chip
>> -- can't seem
>> to program the TI prom. They can read it, blank
>> checks ok, but
>> errs on burn -- all bits remain zeros.
>>
>> Anyone run into this problem before? Are the NS and
>> TI chips not
>> identical?
>>
>> Thanks for any advice.
>>
>> John Singleton
>> Rockville, MD
>> -----------------------
>>
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>
>
> --
> John's Jukes Ltd. 2343 Main St., Vancouver, BC, Canada V5T 3C9
> Call (604)872-5757 or Fax 872-2010 (Pinballs, Jukes, VideoGames)
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>
>
>
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Received on Wed Jan 20 17:49:51 2010