2775W晶振 2.176MHz有源晶振 5V ±100ppm NDK有源晶振 ¥2.80 2765E-80.000000MHZ 80MHz有源晶振 3.3V ±100ppm 5032 NDK ¥2.80 2765E-66.667000MHZ 66.667MHz有源晶振 3.3V ±100ppm NDK ¥2.80 66MHz有源晶振 2765E-66.000000MHZ 3.3V ±100ppm NDK晶振 ¥2.80 50MHz有源晶振 2765E-50.000000MHZ 3.3V ±100ppm NDK有源晶振 ¥2.80 2765E-40.000000MHZ 40MHz有源晶振 3.3V ±100ppm NDK有源晶振 ¥2.80