MD晶振参数如下: Power voltage : 5Vdc /- 5%, 3.3Vdc /-5% Power current : 20mA (MAX) Waveform : CMOS/15pForTTL/10LSTTL Duty cycle : 40/60% Rise Time:8ns(Max) Fall Time:8ns(Max) Start Time:10ms(Max) Frequency stability Vs Temp : /- 30ppm (-20 ~ 70 C) Package : 5 x 3.2x 1.2mm,5 x 7 x 1.3mm 有需要的朋友请联系我,谢谢!!!