RE: 2708 help - Data sheet, programming specs, other...

<x-flowed>Yes, that minus 5VDC is a challenge for modern programmers...hence
the reason we are all buying up Data I/O 29's with UniPaks!

John :-#)#

At 3:57 PM -0800 1/3/05, Paul Swan wrote:
>Hi,
>
>Most modern EPROM programmers start at 2716 for a reason - the 2708 needs
>three power supplies to operate it and the 2716 and later run on at most two
>supplies (the TI one excepted).
>
>Before going to the trouble, it'd be worth asking if their programmer has
>three supplies. More than likely it does not :-(
>
>I was lucky enough to pick up an old 70's EPROM programmer that is able to
>do 2708 (and really old stuff below), used mostly for Zaccaria games.
>
>Regards,
>
>Paul.
>
>
>> -----Original Message-----
>> From: techtoolslist-bounces@flippers.com
>> [mailto:techtoolslist-bounces@flippers.com]On Behalf Of joemagiera
>> Sent: Monday, January 03, 2005 3:34 PM
>> To: techtoolslist@flippers.com
>> Subject: [Techtoolslist] 2708 help - Data sheet, programming specs,
>> other...
>>
>>
>> I own/use an EETools Top Max EPROM programmer. It's pretty versatile,
>> however it does not do 2508's or 2708's. I contacted their
>> support and they
>> appear to be fairly customer responsive. They told me that they would
>> update/modify their software to support any device that the hardware is
>> physically able to do. I would like to take them up on their offer.
>> However I am having difficulties meeting their requirements of
>> supporting a
>> currently unsupported chip type, which is:
>>
>> I submit 2 of each chip type requested
>> I submit either documentation or web link, etc., of the data sheet and the
>> programming specifications of the chip types requested.
>>
>> For those of you unfamiliar with the Top Max, they have went the route of
>> making it a manufacturer priority based device. That means they
>> don't just
>> list 2732's, 2764's, etc.. They list the manufacturer first, and then the
>> exact specific chip number/type from that manufacturer. What that also
>> means on a new chip support request, is that the manufacturer of chips
>> submitted must be the same as the documentation provided.
>>
>> Now for the help request: Can any of you identify the
>> manufacturer of this
>> particular 2708:
>> http://www.joesarcade.com/joem/2708/
>>
>> As I look at the pics again, on the front pic, could that be an "S" to the
>> left of the 7812, which would stand for Signetics (now Phillips)?
>>
>> If I can figure out the manufacturer, I can pester them for the data sheet
>> and programming specs. Even if they are long time non-supported,
>> I've found
>> if you bother a company enough, they will usually eventually hand
>> you off to
>> some old timer there that can dig up the info. But, if any of you might
>> have those documents on hand, and can scan and post or email,
>> that would be
>> great. Thanks,
>>
> > Joe
> >

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</x-flowed>
Received on Mon Jan 03 19:25:34 2005