source for 40 pin TSOP test clips?

[Michael]

Hi - I need a couple test clips for a 40 pin TSOP chip. The only clips that
I've been able to find that match my needs are these:
http://www.emulation.com/catalog/off-the-
shelf_solutions/debugging_accessories/test_clips/tsop_test_clips/ - but
they are over $200 each! Surely there's something on the market that is
more reasonable in price? I'd probabaly only need 2 or 3 - but 3x200 is
alot of money for just a couple test clips!

So does anyone have any ideas? Thanks!

-Michael

 

[Martin Riddle]

POMONA Micro SMD grabber

 

[Michael]

POMONA Micro SMD grabber

Correct me if I'm wrong - but isn't that just for connecting to single
pins? I guess I wasn't clear about this - I need to connect to the entire
chip - and it needs to be fairly quick, easy, and painless (and without any
room for errors like having pins shorted)

The test clip I linked to seems perfect - except for the price...

-Michael

 

[Tam/WB2TT]

Correct me if I'm wrong - but isn't that just for connecting to single
pins? I guess I wasn't clear about this - I need to connect to the entire
chip - and it needs to be fairly quick, easy, and painless (and without any
room for errors like having pins shorted)

The test clip I linked to seems perfect - except for the price...

-Michael

I think you are talking about an SM version of a DIPClip. These things are
unreliable enough, that I would go for the $200 one.

Tam

 

[Michael]

I think you are talking about an SM version of a DIPClip. These things
are unreliable enough, that I would go for the $200 one.

Tam

What exactly do you mean by unreliable? Do they fail? Or do they just not
make good contact? Surely there's something out there that isn't so
expensive?

Michael

 

[Tam/WB2TT]

What exactly do you mean by unreliable? Do they fail? Or do they just not
make good contact? Surely there's something out there that isn't so
expensive?

Michael

You are trying to connect to all 40 pins at the same time, right? I have had
enough trouble getting even 14 pin SM clips to make good contact (20 pin
seem OK, because the chip is bigger), and the TSOP pins are awful close
together. They also have a tendency to come flying off.

Tam

 

[Michael]

You are trying to connect to all 40 pins at the same time, right? I
have had enough trouble getting even 14 pin SM clips to make good
contact (20 pin seem OK, because the chip is bigger), and the TSOP
pins are awful close together. They also have a tendency to come
flying off.

Tam

Yes all 40 pins. It won't be anything like a permanent connection though -
I just need it to be connected long enough to flash the chip. So the test
clip I linked to is pretty much the best solution?

Michael

 

[Tam/WB2TT]

Yes all 40 pins. It won't be anything like a permanent connection though -
I just need it to be connected long enough to flash the chip. So the test
clip I linked to is pretty much the best solution?

Michael

I am still not sure what you want to do. The page you reference won't come
up. When I look at other TSOP test clips at the Emulation Technologies web
site, I can't tell how they work. Is the TSOP soldered down on the board
when you do this, or are you really looking for a socket? In general, these
kind of things can get expensive. We were paying $2000 for 68340 adapters.

Tam

 

[Michael]

I am still not sure what you want to do. The page you reference won't
come up. When I look at other TSOP test clips at the Emulation
Technologies web site, I can't tell how they work. Is the TSOP
soldered down on the board when you do this, or are you really looking
for a socket? In general, these kind of things can get expensive. We
were paying $2000 for 68340 adapters.

Tam

We need to be able to flash a TSOP chip that is already soldered onto
boards. So no need for a socket. Here's the link again:
http://www.emulation.com/catalog/off-the-
shelf_solutions/debugging_accessories/test_clips/tsop_test_clips/
I think maybe word wrap is making it unclickable? I don't really know
how to fix that. But essentially it clips onto the entire TSOP chip. Of
course I've never seen one of these used in person (and somehow I doubt
they'll send us a sample!) so I can't testify to how good they are at
this - though I've heard a couple success stories about them. Thanks,

-Michael