[Coco] Prototype/Breakout Board

[Louis Ciotti]

Just starting so ideas/input are welcome.  ave not done much digital 
designs, so I am going to muddle along and learn the hard way here.

I am thinking I may just bring all 40 pins out, but that would mean more 
buffering, but not sure if all really need buffers.

On 3/24/2012 8:02 PM, Chad H wrote:

> You are designing a small board for mass production that would essentially

> allow us to make our own custom ROM paks?  If that's the case, I love the

> idea.  Are you planning on 8K, 16K, or more?  Bank switchable?

>

> -----Original Message-----

> From: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com] On

> Behalf Of Louis Ciotti

> Sent: Saturday, March 24, 2012 6:57 PM

> To: CoCoList for Color Computer Enthusiasts

> Subject: [Coco] Prototype/Breakout Board

>

> I am finally getting to working on this, and someone send me an email

> recommending a IC for use on the the address/data lines that was similar to

> the 74LS245, but allow voltage translation.  I must have fatfingered the

> delete button and cannot fine the e-mail  Can you please resent the info.

>

> Now on this what are the thoughts on this?  Right now my thoughts are to

> have a small board that plugs into the cartrige slot, has buffereing, a ROM

> socket, and a 0.1" dual row header to connect a cable to.

>

> of the 40-pins I am planning on breaking-out:

>

> A0-A15

> D0-D7

> 5V

> GND

> CTS*

> Q

> CART*

> R/W*

> RESET

>

> Lou

>

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