Eprom programmer

mcandrewsoun

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Im looking to possibly buy one.. I have several boards with bad roms. Can someone give me some pointers as to what to look for?

Thanks!

Andrew
 
Depends on what you need to program. I have a top2049. It supports up to 48 pin devices built from 1990 onward. Its usb power, portable and cost $100-$150 new depending on where you buy it
 
Depends on what you need to program. I have a top2049. It supports up to 48 pin devices built from 1990 onward. Its usb power, portable and cost $100-$150 new depending on where you buy it

Something to keep in mind, the Top2049 is not recommended for use on 27 series devices.
 
Something to keep in mind, the Top2049 is not recommended for use on 27 series devices.

Something to keep in mind, that issue has long been solved, additionally the 27 series is THE ONLY eprom I deal with and program and I have successfully program everything from 1mb to 32mb chips
 
A cheap old dual power Willem PCB3 will do 27 series.

Biggest problem I've seen or read about on the cheaper programmers is that some of those older chips require up to 25v to program....some programmers just don't have the gumption to do it or burn themselves up trying.
Even my little PCB3 won't do them via USB only, you HAVE to have the external power supply.
 
A cheap old dual power Willem PCB3 will do 27 series.

Biggest problem I've seen or read about on the cheaper programmers is that some of those older chips require up to 25v to program....some programmers just don't have the gumption to do it or burn themselves up trying.
Even my little PCB3 won't do them via USB only, you HAVE to have the external power supply.

I'm guessing most people still have a pc that has a parallel port because the old PCB3 with usb interface are rare and a pain to find. The one with the parallel port is the most common and no you can not use a usb to parallel adapter with these and getting them to work with a pci card is a technical adventure with the added disadvantage of slowing programming to a crawl

Willem has long since moved on to a more professional looking burner that has a enclosure instead of looking ghetto in a bare pcb form.
 
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