HC-49/SM(24MHz) HC-49/SM(4.096MHz) HC-49/SM_10MHZ HC-49/SM_24.576MHZ HC-49/SM_25.14MHZ HC-49/SM10.000000MHZ20PF HC-49/SM12.00MHZ HC-49/SM12.288MHz HC-49/SM-14MHZ(30PPM) HC-49/SM-19.6608MHZ