22/11/2004 17:30:12, Glen VanMilligan <glenv@vpcvalley.com> 
wrote:

>Can someone tell me what type of parts can be driven by the 
balloon board?  
>I'm not sure what speed the data and address lines are 
operating at?  
>Has anyone successfully driven a 74HCxxx part from the mother 
board connector 

_Please_ don't use 74HC. It's very, very slow, if you want to run it 
at 3.3V. 
The LVT devices used to buffer the bus can tolerate 5V, so what 
devices you want to use depends very much on what you want to 
do. Do you just want to latch data in & out, or do more elaborate 
things? As I've already suggested, if you want to do elaborate 
things, then a PLD is almost inevitably the right solution. 
If all you want are latches, the a PLD is still likely to be smaller, 
cheaper, faster, easier to lay out a PCB, easier to redesign when 
you change your mind / change the project requirements / want 
to sell a few spare boards. However, if you absolutely must use 
discrete logic, then TI's LVC, LVX or LVT families are all 
reasonable candidates (and they have a handy free samples 
service...)


Steve