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I'm wondering if anyone can recommend a decent & cheap programmer? In the past I've soldered flying leads and used an MCU dev board to read and program devices but this is awkward, especially when 'unusual' programming voltages are required. There seems to be a huge variety in price and features in commercial solutions, I'm not exactly sure what I'm looking for or what is reliable. I would like to do DIP, TSOP and PLCC packages, and having clips to allow in-circuit operation would be preferable. Totally fine with getting something used or from eBay. So, any favorites I should look out for? Sounds a bit like you want a cheap programmer that can program anything.

When you see a programmer on ebay that can program 20,000, 30,000. Etc devices, there is a massive number of devices that they cannot program. What you may easily find is there is no problem getting a programmer that can program common 5 to 10 year old processors, but most probably cannot program this year's newest releases.

Usually the hardware tools from a particular microprocessor company can program even the most recent releases, so that is probably a better tactic rather then buying a programmer that you hope will be able to program a device that you may choose to use in the future. It is dangerous buying old programmers, unless you find it is still regularly updated by the manufacturer. If the last software release for a programmer is 1999, then you cannot program anything newer then 1999.

Try to find a used xeltec, hilo or dataman programmer. These typically still have software support.

BK precision has a really good one, but it's 400$. Stay away from the chinese stuff. They are typically limited to serial proms and a few cpu's.

Data sheet frekuensi irf640. Specified at ElevatedTemperature datasheet search, datasheets, Datasheet search site for Electronic Components and Semiconductors, integrated circuits, diodes and other semiconductors. IRF 640FP Datasheet(PDF) 1 Page - First Components International. IRF 640N/IRF 640NS/IRF 640NL. Electrical Characteristics. TA = 25°C unless otherwise noted. IRF 640N/IRF 640NS/IRF 640NL. Thermal Resistance vs. Mounting Pad Area. The maximum rated junction temperature, TJM, and the thermal resistance of the heat dissipating path determines. IRF 640 datasheet, IRF 640 circuit, IRF 640 data sheet: IRF - Power MOSFET(Vdss=200V, Rds(on)=0.18ohm, Id=18A),alldatasheet, datasheet, Datasheet search site for Electronic Components and Semiconductors, integrated circuits, diodes, triacs, and other semiconductors.

I don;t know what you intend to do, but if you repair boards and equioment (like test equipment) you often need to be able to deal with older parts. These tend not to be supported in the wing-pang-pong programmers. Especially if you have device that need multiple voltages. I'm wondering if anyone can recommend a decent & cheap programmer? In the past I've soldered flying leads and used an MCU dev board to read and program devices but this is awkward, especially when 'unusual' programming voltages are required.

There seems to be a huge variety in price and features in commercial solutions, I'm not exactly sure what I'm looking for or what is reliable. I would like to do DIP, TSOP and PLCC packages, and having clips to allow in-circuit operation would be preferable.

Totally fine with getting something used or from eBay. So, any favorites I should look out for? BP microsystems make nice programmers but the prices will require a bank loan. You know your in trouble when the company offers financing. Even a base unit is several thousand dollars.

I do have access to one (I'm retired now) but even adapter heads can be hundreds. As for Chinese I like Wellon, the software was made in Canada a couple years ago but I can't say for sure about now. 200 bucks will get you a pretty nice programmer. Fairly comprehensive device list and I updated the software for my 3 year old unit a couple months ago. It's critical that the unit is around for a while to make sure you get proper support.

Typically from Wellon the lower cost units chip list is upgraded every 6 months. I have no complaints. The new software I have is Windows 7 and seems to work fine.

Most of the Wellons can also test basic logic IC's and simple rams. They also sell a wide range of adapters.

The IC checker routine is user definable and I have used it to test simple logic only circuit boards. As for in circuit programming. You can damage your programmer if it was not designed for it. My feeling is that you are better off with a few cheapo in circuit programmers (like the pickit). The added benefit is that you will have the latest chips supported instead of having to wait 6 months to a year (never for unsupported programmers). Universal programmers are often used in repair shops and certainly, they are very useful there.