CM31532768DZCT-K1S CM31532768DZFT CM315D 32.768KHZ 12.5PF 20PPM CM315D 32.768KHZ 12.5PF 5PPM CM315D 32.768KHZ 6PF 20PPM CM315D 32.768KHZ 7PF 20PPM CM315D 32.768KHZ 9PF 20PPM CM315D-32.768KDZB-UT CM315D-32.768KDZC-UT CM315D32.768KDZC-UT