Part numbers AM335X ICE EVM Expansion headers

Manuel Aiple

Prodigy 90 points

Hello,

I would like to connect to the expansion headers on the AM335X ICE EVM (J9 and J12) to access the GPIO pins.

Which connectors fit for a wire-to-board connection (part numbers)? Thank you.

Best regards,

Manuel

over 13 years ago

0 Biser Gatchev-XID over 13 years ago

TI__Guru**** 393215 points

Hi Manuel,

J9 and J12 are 50mil (1.27mm) pitch headers (2x20pin and 2x25pin). There are a lot of matching connectors on the market. I would recommend 1.27mm female ribbon cable connectors . These can be easily found, along with appropriate ribbon cable.

Best Regards

Biser

0 Ben Lewis over 13 years ago in reply to Biser Gatchev-XID

Prodigy 130 points

I'm also finding it difficult to find a suitable connector.

Can anybody provide a suitable part number?

0 Biser Gatchev-XID over 13 years ago in reply to Ben Lewis

TI__Guru**** 393215 points

Check out these cable assemblies from Samtec:

http://www.samtec.com/ProductInformation/TechnicalSpecifications/Overview.aspx?series=FFSD

They have them with a single connector attached. This is only an example, If you can find compatible connectors and ribbon cable, you can crimp your own assembly.

Best Regards

Biser

0 Ben Lewis over 13 years ago in reply to Biser Gatchev-XID

Prodigy 130 points

Hi Biser,

Thanks for your reply. This connector looks suitable for the J9 header but is too wide for J12 (due to the close proximity of the DSUB-9 connector). Do you know of an alternative that will work for the J12 connector?

Regards, Ben

0 Biser Gatchev-XID over 13 years ago in reply to Ben Lewis

TI__Guru**** 393215 points

Yes Ben, of course you are right. I didn't pay attention to this issue. Afraid nothing will fit in there. Personally speaking, what I'd do in this situation will be to take out J12 and solder it on the other side of the PCB, but this is a tricky job - have to be very carefull not to damage the board. With these 1.27mm headers what I do is make sure I have a replacement, and then pull them out pin by pin, clean the holes with braid and solder the new header. Hope this helps you.

Best Regards

Biser

0 Ben Lewis over 13 years ago in reply to Biser Gatchev-XID

Prodigy 130 points

But presumably TI had a particular connector solution in mind when they layed the board out in this way.

I thought a female-male extender could be used to raise the pins above the height of the DSUB9. This would then provide enough width for the above mentioned ribbon cable connector. However, I cannot find such a device.

What have other people done to access the J12 connector?

0 Manuel Aiple over 12 years ago in reply to Ben Lewis

Prodigy 90 points

In the end I opted for the Samtec ISDF-25-D and Samtec ISDF-20-D with the Samtec CC03L-2830-01-G contacts.

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Part numbers AM335X ICE EVM Expansion headers