XO Part Numbering System Example Part Number: CSX750 FB C 25.000M -UT Product Family Frequency Packaging method For example: Numerical Value, maximum characters as follows: -UT RoHS Compliant Tape & Reel CSX750 CSX325 -UB RoHS Compliant Bulk XXX.XXXXXX followed by "M" for MHz Frequency Tolerance [at Operating Temp.] B C F G CSX750 50ppm 100ppm 100ppm 200ppm (-20 to +70C) (-20 to +70C) (Std) (-40 to +85C) (-40 to +85C) Frequency Range Voltage Load Condition Fixed Frequency: FC 1.000 - 66.667MHz 5V TTL/CMOS FB 1.000 - 39.999MHz 3.3V CMOS FJ 40.000 - 80.000MHz 3.3V CMOS Programmable Frequency: PT 1.000 - 125.000MHz 5V TTL PC 1.000 - 125.000MHz 5V CMOS PB 1.000 - 100.000MHz 3.3V CMOS CSX325 Fixed Frequency: FJ 12.500 - 54.000MHz 3.3V CMOS FH 12.500 - 54.000MHz 2.5V CMOS Programmable Frequency: PC 1.000 - 125.000MHz 5V CMOS PB 1.000 - 125.000MHz 3.3V CMOS