18.4320CD 18.4320MHZ 18.4320MHZ HC49 20/50/-40+85°C/SR 18.4320MHZ HC49/4H 30/50/-40+85°C/30PF 18.432KHZ 18.432M 18.432M 36M DIP-8 18.432M 4025 4P 18.432M/EXO36K1C 18.432M18P2/49SMT