The 1187 from Microchip Technology is a Space Qualified Oscillator with Frequency 1.50 to 100 MHz, Frequency Stability ±50 ppm, Supply Voltage 3.63 to 5.5 V, Output Current 6 to 50 mA, Rise/Fall Time 3 to 6 nS. More details for 1187 can be seen below.
