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JTAG CONNECTOR

Started by Micron Engineering March 25, 2005

Check out the .5 pitch DF-12 series of connector from Hirose
Electronic Co. Ltd. - here's a typical example - Digikey part number
H2756-ND

I'm going to give this a try and build both connectors on a small
pcboard as Leon suggested earlier.

Tom --- In lpc2000@lpc2..., "Richard" <richas@y...> wrote:
>
> Keeping the 20-pin connector is nice as it gives a ground wire
between
> the signal wires (ribbon cable). Check out this AMP connector
> available at Digikey:
>
> A3103-ND
>
> Richard > --- In lpc2000@lpc2..., Onestone <onestone@b...> wrote:
> > You're right Leon, I think it is Harwin. There are two suppliers.
> > farnell only has the single row. My supplier gets them in double
row
> too.
> >
> > Al




An Engineer's Guide to the LPC2100 Series

----- Original Message -----
From: "tkreyche" <tkreyche@tkre...>
To: <lpc2000@lpc2...>
Sent: Saturday, March 26, 2005 5:01 PM
Subject: [lpc2000] Re: JTAG CONNECTOR >
>
> Check out the .5 pitch DF-12 series of connector from Hirose
> Electronic Co. Ltd. - here's a typical example - Digikey part number
> H2756-ND
>
> I'm going to give this a try and build both connectors on a small
> pcboard as Leon suggested earlier.

A similar (more ways) Hirose connector is used for inter-board connections
on the tiny Gumstix PXA255 systems. One Gumstix user said he found them
difficult to solder, but his technique might have been wrong. I haven't
tried them yet as no-one has any stocks, and Hirose won't have any for a
couple of months, at least.

Leon


Checkout Samtec for connectors. They have a lot of interesting small pitch
stuff. And they will send out samples VERY fast.

Joe

> -----Original Message-----
> From: Leon Heller [mailto:leon.heller@leon...]
> Sent: Saturday, March 26, 2005 12:59 PM
> To: lpc2000@lpc2...
> Subject: Re: [lpc2000] Re: JTAG CONNECTOR > ----- Original Message -----
> From: "tkreyche" <tkreyche@tkre...>
> To: <lpc2000@lpc2...>
> Sent: Saturday, March 26, 2005 5:01 PM
> Subject: [lpc2000] Re: JTAG CONNECTOR > >
> >
> > Check out the .5 pitch DF-12 series of connector from Hirose
> > Electronic Co. Ltd. - here's a typical example - Digikey part number
> > H2756-ND
> >
> > I'm going to give this a try and build both connectors on a small
> > pcboard as Leon suggested earlier.
>
> A similar (more ways) Hirose connector is used for
> inter-board connections
> on the tiny Gumstix PXA255 systems. One Gumstix user said he
> found them
> difficult to solder, but his technique might have been wrong.
> I haven't
> tried them yet as no-one has any stocks, and Hirose won't
> have any for a
> couple of months, at least.
>
> Leon >
>
> Yahoo! Groups Links




On 26 Mar 2005 at 14:36, Joe Hlebasko wrote:

>
> Checkout Samtec for connectors. They have a lot of interesting small
> pitch stuff. And they will send out samples VERY fast.
>

Some of their fine-pitch connectors are also available pre-soldered onto
a flex PCB. This is much smaller then using 50 mil ribbon cable, or even 25 mil
ribbon cable. We have found these flex PCBs also a lot more robust for general
use than ribbon cable.

Regards
Anton Erasmus > > -----Original Message-----
> > From: Leon Heller [mailto:leon.heller@leon...]
> > Sent: Saturday, March 26, 2005 12:59 PM
> > To: lpc2000@lpc2...
> > Subject: Re: [lpc2000] Re: JTAG CONNECTOR
> >
> >
> > ----- Original Message -----
> > From: "tkreyche" <tkreyche@tkre...>
> > To: <lpc2000@lpc2...>
> > Sent: Saturday, March 26, 2005 5:01 PM
> > Subject: [lpc2000] Re: JTAG CONNECTOR
> >
> >
> > >
> > >
> > > Check out the .5 pitch DF-12 series of connector from Hirose
> > > Electronic Co. Ltd. - here's a typical example - Digikey part
> > > number H2756-ND
> > >
> > > I'm going to give this a try and build both connectors on a small
> > > pcboard as Leon suggested earlier.
> >
> > A similar (more ways) Hirose connector is used for
> > inter-board connections
> > on the tiny Gumstix PXA255 systems. One Gumstix user said he
> > found them
> > difficult to solder, but his technique might have been wrong.
> > I haven't
> > tried them yet as no-one has any stocks, and Hirose won't
> > have any for a
> > couple of months, at least.
> >
> > Leon
> >
> >
> >
> >
> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
> >
> >
>
> Yahoo! Groups Links >
>

--
A J Erasmus



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