Hello. Welcome to Futurlec. The electronic components Superstore. To find the component your looking for, either search by Part Number or visit the relative department. Need Help. Oscillator's OSC27.000 - 27.000MHz Crystal Oscillator Photograph Features High Accuracy Long Life Operating Temperature: 0oC to +70oC Input Voltage: +5VDC Frequency Stability: ±100ppm Mounts in Standard 14 pin IC Socket Pin 1 - Not Connected Pin 7 - Ground Pin 8 - Output Pin 14 - +5VDC