32.768KHZ 12PF 20PPM 32.768khz 2012 32.768KHZ 2012 FC-12M 32.768KHZ 20PPM 12.5pF 32.768KHZ CM315 32.768KHZ CM415 32.768KHZ CM519 32.768KHZ FC-135 32.768KHZ FC135 MC146 12.5PF 32.768KHZ MC-146