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HC-49US 直插2P | |||
推荐HC-49US不同频点,您需要的请联系客服 | |||
标准频率 | 负载电容 | 频率偏差 | 联系购买 |
3.6864MHZ | 20PF | 20PPM |
Buy |
3.579545MHZ | 20PF | 20PPM | Buy |
4MHZ | 20PF | 20PPM | Buy |
5.5296MHZ | 20PF | 20PPM | Buy |
8MHZ | 20PF | 20PPM | Buy |
10MHZ | 20PF | 20PPM | Buy |
11.0592MHZ | 20PF | 20PPM | Buy |
12MHZ | 20PF | 20PPM | Buy |
13.560MHZ | 20PF | 20PPM | Buy |
16.384MHZ | 20PF | 20PPM | Buy |
20MHZ | 20PF | 20PPM | Buy |
24MHZ | 20PF | 20PPM | Buy |
24.576MHZ | 20PF | 20PPM | Buy |
25MHZ | 20PF | 20PPM | Buy |
26MHZ | 20PF | 20PPM | Buy |
27.120MHZ | 20PF | 20PPM | Buy |
27MHZ | 20PF | 20PPM | Buy |
28.6363MHZ | 20PF | 20PPM | Buy |
30MHZ | 20PF | 20PPM | Buy |
36MHZ | 20PF | 20PPM | Buy |
如何确定某一款单片机在某一大小的石英晶振下是否能正常工作?
石英晶振就像是单片机的心脏,晶振选择太高不太合适,具体晶振上限是多少,恐怕测不出来,只能按照单片机的要求,一般STC系列单片机上限是35M或40M。
超过上限会出现什么样的问题,没有测试过,一般石英晶振选择12M的比较多,如果选择STC 1T指令的,就相当于12*12=144M的晶振。如果用于串口通信,建议选用11.0592M的或22.184M,选择石英晶振主要还是参照的说明书。