Have look at materials linked there http://dangerousprototypes.com/blog/2011/04/17/replacing-discrete-7400-logic-devices-with-cplds/ http://dangerousprototypes.

Have look at materials linked there http://dangerousprototypes.com/blog/2011/04/17/replacing-discrete-7400-logic-devices-with-cplds/ http://dangerousprototypes.com/blog/2011/04/17/replacing-dis...