关于25MHz晶振选多大电容，解释如下：

For selecting the correct load capacitance for a 25MHz crystal , it’s important to refer to the crystal manufacturer’s specifications and the IC datasheet. Typically, the load capacitance (e.g., 15pF or 18pF) depends on the specific crystal you are using and the design of your circuit. The IC datasheet will provide guidance on the recommended load capacitance range.

对于选择25MHz晶振的正确负载电容，重要的是参考晶振制造商的规格和IC数据手册。通常，负载电容（例如18pF或15pF）取决于您使用的具体晶振和电路设计。IC数据手册将提供关于推荐负载电容范围的指导。