R Device D DIP , LCC, and PLCC available Ċ 7.5 ns commercial version 5 ns tCO 5 ns tS 7.5 ns tPD 133ĆMHz state machine Ċ 10 ns military and industrial verĆ sions 6 ns tCO 6 ns tS 10 ns tPD 110ĆMHz.