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Title: TP18S030 Replacements? Post by: LordKaT on August 24, 2015, 11:59:30 am I have a Universal Mr. Do board that I bought off ebay. The board seems to be in good shape, but the fuse PROM's have seen much better days. I've tried cleaning them up as much as I can, but I suspect one of them to be faulty.
Does anyone know if there's a suitable replacement for these fuse PROM's or a way to replicate their function? I'd rather not sacrifice another perfectly good Mr. Do to resurrect this one. Thanks! Title: Re: TP18S030 Replacements? Post by: iankellogg on August 24, 2015, 12:52:44 pm so far the only person i know that can burn these is this guy http://www.hobbyroms.com/
Title: Re: TP18S030 Replacements? Post by: LordKaT on August 24, 2015, 01:51:43 pm Do you think using something like a GAL might be possible if I built an adapter board?
Title: Re: TP18S030 Replacements? Post by: iankellogg on August 24, 2015, 01:52:53 pm you could use a GAL, you could even use a modern chip too as long as you are okay with having the adapter board on there.
Title: Re: TP18S030 Replacements? Post by: LordKaT on August 24, 2015, 02:08:37 pm I will research this more. The chip timings will be a bitch :#
Title: Re: TP18S030 Replacements? Post by: iankellogg on August 24, 2015, 02:12:25 pm not really that bad. stay under 50ns and you are fine. Even then a lot of those chips are in the 100ns range. Modern chips are down below 10ns.
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