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These crystals are perfect for PIC and other micro-controllers and feature the following specs;

Low profile HC49S package (Identical pin spacing as HC49U)
Fundamental oscillation mode at a nominal frequency of 20MHz
Frequency tolerance: +/-30ppm @ temperature 25ºC
Operating temperature range: -10ºC to +60ºC
Load capacitance: 32pF
Typical Drive level: 100mW
Shunt capacitance: 7pF Max