Myke Predko writes:

<< I've been trying a 20 MHz ECS Ceramic Resonator and it doesn't run >>

Myke - I had _exactly_ the same experience - using 20MHz ECS resonators from
Digikey, on a 16C74JW.  Tried several different '74s, and series R.  Tried XT
and HS configs.  Nothing worked.  Xtal works fine, of course.


Shel Michaels
Massachusetts, USA