FC-135 32.768KHZ 12.5PF FC-135 32.768KHZ 12.5PF+-20PPM FC-135 32.768KHZ 7PF+-20PPM FC-135 32.768KHZ 9 FC-135 32.768KHZ 直插晶振 FC-135 32.768khz-12.5pF FC135 32.768kmhz 9PF FC-135 3215 32.768KHZ 12.5PF 20PPM FC-135(12.5PF FC-135(12.5PF±20PPM) 32.786KHZ