Norm Cramer wrote:
>
> At 01:46 PM 4/30/97 -0500, you wrote:
> >Can anyonne tell me if they make a .300mil SDIP style 28 pin ZIF Socket
> >that I could use for the 16CXX line.  The circuit card that I already
> >have won't accomodate the standard 28 pin ZIF width which is about
> >.600mil.
>
> I had the same problem but only wanted the ZIF for development.  I built a
> 600 mil to 300 mil adapter and use it for development.  I then use the chip
> directly in the socket for production units.  This works if there is space
> above the socket for the addaptor.  I also added jumpers and a connector to
> my addapter to allow in-circuit programming of the devices (I don't have a
> 28pin socket on my programmer).  The jumpers allow all of the pins used in
> programming to be isolated from the development hardware.
>
> If you are interested in the mechanical details of my adapter, let me know
> and I'll send them to you.
>
> Norm

I haven't seen a 28 pin ZIF in a .3" spacing.
If there is, you can bet it won't be easy to get your hands on.

Here is my answer.
Digi-key have a 28 pin .3 to .6" adapter. Very neat too. They even have
one back the other way.

Get an Aries brand .6" 28 pin ZIF socket and the adapter from Digi-key.
These will plug nicely together.
Get some 28 pin sninny machine pin sockets and build up the height if
other components on the board are a problem. This will now plug into any
.3" 28 pin target board socket, and convert any board into a ZIF based
board. When finished, remove.

More of these ideas can be found at:
http://www.dontronics.com/hints/html

Don McKenzie  don@dontronics.com   http://www.dontronics.com

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