PLCC adapter plug-in solution

[NoSp]

I have a PLCC type mc68000 processor in a PLCC socket and I'm interested
in adding an interface board which needs to access several pins of the
processor. I'm picturing myself the interface board with some sort of
plug-in PLCC adapter which firmly plugs into the existing PLCC socket
(with the 68000 inserted into). Is there such a thing, or are there
better solutions available?

Here's a photo of the MC68000 processor in the PLCC socket:
http://img205.imageshack.us/img205/1752/68000plcchg6.jpg

And here's a drawing I've made which illustrates my idea of inserting
the DIY interface board into the PLCC socket with the 68000:
http://img360.imageshack.us/img360/64/plccadapteryr7.gif

 

[Dave Pollum]

I have a PLCC type mc68000 processor in a PLCC socket and I'm interested
in adding an interface board which needs to access several pins of the
processor. I'm picturing myself the interface board with some sort of
plug-in PLCC adapter which firmly plugs into the existing PLCC socket
(with the 68000 inserted into). Is there such a thing, or are there
better solutions available?

Here's a photo of the MC68000 processor in the PLCC socket:http://img205.imageshack.us/img205/1752/68000plcchg6.jpg

And here's a drawing I've made which illustrates my idea of inserting
the DIY interface board into the PLCC socket with the 68000:http://img360.imageshack.us/img360/64/plccadapteryr7.gif

If you search for SMT adapters or test sockets, you may find something
close to what you need. Ironwood Electronics comes to mind, but
they're quite pricey.
HTH
-Dave Pollum

 

[NoSp]

If you search for SMT adapters or test sockets, you may find something
close to what you need. Ironwood Electronics comes to mind, but
they're quite pricey.

You're right. I had a look at their site where I found "PLCC extenders"
to seem suitable for the task. Of course at around 100 bucks a piece
it's out of the question.

 

[Dave Pollum]

You're right. I had a look at their site where I found "PLCC extenders"
to seem suitable for the task. Of course at around 100 bucks a piece
it's out of the question.

There's another place I remembered: smt-adapter.com P/N: 68PL-W
($12.00) has a 68-pin PLCC socket that plugs into a carrier board that
holds wire wrap pins. You could make a small PCB that breaks out each
pin. You place your break-out PCB just underneath the carrier board
and solder the pins to your break-out board. Then you insert and
solder the ww-pins into your main board.
This is what I had in mind:

[ ]
[ ] <- PLCC socket
========== <- carrier board
| | | | <- wire-wrap pins
================= <- breakout board
| | | |
| | | |
================= <- main board

HTH
-Dave Pollum

 

[NoSp]

There's another place I remembered: smt-adapter.com P/N: 68PL-W
($12.00) has a 68-pin PLCC socket that plugs into a carrier board that
holds wire wrap pins. You could make a small PCB that breaks out each
pin. You place your break-out PCB just underneath the carrier board
and solder the pins to your break-out board. Then you insert and
solder the ww-pins into your main board.
This is what I had in mind:

[ ]
[ ] <- PLCC socket
========== <- carrier board
| | | | <- wire-wrap pins
================= <- breakout board
| | | |
| | | |
================= <- main board

That sounds like a good idea except the soldering as I really don't want
to unsolder the existing socket on the main board.
Is there something similar that just plugs into the existing PLCC
socket, either allowing the 68000 processor to stay in the main board
socket, or similar to your solution above where the 68000 is to be
removed and placed in the new socket instead.

I know there are solutions available where you don't need to remove the
PLCC socket, the IC already inside the socket, and you can just plug it
in. I just don't know the details, and the I'm getting no replies from
the companies that do these projects.

 

[Dave Pollum]

There's another place I remembered: smt-adapter.com P/N: 68PL-W
($12.00) has a 68-pin PLCC socket that plugs into a carrier board that
holds wire wrap pins. You could make a small PCB that breaks out each
pin. You place your break-out PCB just underneath the carrier board
and solder the pins to your break-out board. Then you insert and
solder the ww-pins into your main board.
This is what I had in mind:

[ ]
[ ] <- PLCC socket
========== <- carrier board
| | | | <- wire-wrap pins
================= <- breakout board
| | | |
| | | |
================= <- main board

That sounds like a good idea except the soldering as I really don't want
to unsolder the existing socket on the main board.
Is there something similar that just plugs into the existing PLCC
socket, either allowing the 68000 processor to stay in the main board
socket, or similar to your solution above where the 68000 is to be
removed and placed in the new socket instead.

I know there are solutions available where you don't need to remove the
PLCC socket, the IC already inside the socket, and you can just plug it
in. I just don't know the details, and the I'm getting no replies from
the companies that do these projects.

Just out of curiosity, how many adapters do you need?
There are PLCC "plugs": http://smt-adapter.com/Site/PLCC-plugs.htm
P/N: M68PL-PL-ZAL looks like it would be perfect for you, but it's
$190.00! Oh well. Keep on Googling, you may find what you want at a
decent price. Let us know what you find.
-Dave Pollum (who does _not_ work for smt-adapter.com)