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20 pin ribbon style cable

Anyone have any info on where to possible find a part.

I am programming/testing a lot of atmel at90s2313 20 pin DIP sockets. My intentions are to take a 20pin dip socket and connect a cable to it so I can move the microcontroller from test bench to programming and back with ease and without having to remove the chip from the socket. In otherwords say I wanted to move the chip off the devboard to reprogram I simply want to unhook the cable which is attached to the DIP socket and hook it into the cable from the programmer. Oh and yes I already know they have ISP programmers ETC and thats not what I am looking for.

I am having problems finding a cable with the right size end that would allow me to do this by connecting directly to the DIP socket. If anyone has any ideas please post.

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Poor planning on your part does not constitute an emergency on my part.
Reply to
Bryan Martin
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Hi, Bryan. I'm sure you could do as better job of describing the cable you need.

Are you looking for a ribbon cable which has a 20-pin DIP plug on each side? In the Digi-Key catalog, you could get one of their A6MMT-2006G-ND for $4.06 ea. This is 6" long, which should be enough for what you want. You should keep the ribbon cable as short as possible. But if you want an 18" one, the P/N is A6MMT-2018-ND.

If you want to have a pair of sockets at the other end of the ribbon cable (one for the DIP plug, and one for inserting microcontrollers to program), buy the above, and then make the dual socket setup on a piece of perfboard.

Between the two of these, I was able to do a few things with a development board.

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Ask for a catalog when you place your order -- they're free, and are a big help when you're trying to figure out the names of the doohickeys we use.

If neither of these will do, could you describe what you need with more precision?

1) The 20-pin Atmel IC is called a DIP (Dual In-line Package). 2) The (usually) black thing you plug the 20-pin Atmel DIP part into is called a DIP Socket. 3) The connector at the end of the ribbon cable that plugs into a DIP socket is called a Ribbon Cable DIP Plug. 4) The Atmel chip itself is called the microcontroller. 5) The small board you're using to program the Atmel is usually called the development board. 6) The board the microcontroller is eventually going to be used in is sometimes called the target board.

Feel free to post again.

Good luck Chris

Reply to
Chris

I think you got something similar to what I am looking for. Sad part is that I do actually have a digikey catalog and have searched the site but could not locate it among all the other things.

Thanks again

Reply to
Bryan Martin

20-conductor ribbon cable is pretty common stuff, so I'm assuming you aren't really looking for "cable", what you want is the part that goes on the end.

Maybe your search is for a 20-pin DIP plug that goes onto ribbon cable? AMP makes them, part #746613-5. There are also solder-type headers that plug into DIP sockets. All this stuff was the rave 30 years ago :-).

All that said, you really really want to go to in-circuit programming. Why any developer would go through all this crap with plugging and unplugging chips all the time is beyond me, especially in our modern surface-mount world.

Tim.

Reply to
Tim Shoppa

solder .05" ribbon to a 20 pin DIP wire-wrap soccket.

ISTM that' it'd be easier to superglue a perspex handle to the back of the chip.

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Bye.
   Jasen
Reply to
Jasen Betts

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