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2708 eprom programmer

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JonTron View Drop Down
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    Posted: 14 Nov 2017 at 3:57pm
I'm looking for the best solution to burning 2708 eproms.

Is there a generic programmer that will read/write the 2708?

From a search i did a while ago i seem to remember people saying there was but it was expensive and rarely available.
Does anyone know of a homemade version or links to a diagram and info on building my own programmer?

Another point i remember coming up was the option to use 2716 eproms.
Does anyone have info on how to use 2716s in place of 2708s and a recommended programmer for doing that?

Thanks,
JT
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smarty View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote smarty Quote  Post ReplyReply Direct Link To This Post Posted: 14 Nov 2017 at 8:53pm
I've had this link saved for a long time, the website is now gone but the wayback machine still displays the page, without photos. You can make an adapter to use 2716's in a 2708 board with a couple of modified IC sockets, the will slot in to your pcb.

jumpnfire.com

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Post Options Post Options   Thanks (0) Thanks(0)   Quote JonTron Quote  Post ReplyReply Direct Link To This Post Posted: 14 Nov 2017 at 9:02pm
That looks an interesting read. I'll use that if i cant find something for the 2708's.
Thanks smarty.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Ace` Quote  Post ReplyReply Direct Link To This Post Posted: 14 Nov 2017 at 10:01pm
Almost all decent programmers can do 2716s, 2708s are a completely different story. There's maybe a couple of modern programmers that can do them like the topmax (I think) and some of the beeprogs/dataman with a £100ish adaptor.

Your best bet if keeping a look out for an old Data I/O 29b if you want to program them yourself but if it's just a one off someone on here with a 29b will probably help you out.

As for using a 2716 in place of an 2708, you need to double the image and burn it to the 2716. Then either mod the board to take the 2716 or make a small adaptor pcb.
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