器件手册的第二页写明,clock frequency:16M最大。手册的第五页参数fSCLK,最大允许3.2MHz。这两个参数有什么区别?
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您好,
具体区别见标注3:This is the frequency range over which the electrical performance is specified. The device is functional over a wider range which is specified under Operating Ratings.
频率范围0.8MHZ ~3.2MHZ这个条件下可以保证设备性能满足电气特性表格中的参数,也就是说datasheet中列出的各种电气特性对SCLK在这个频率范围内有效。设备可以在更广范围的频率(50 kHz to 16 MHz)下工作,但是不能保证datasheet中列出的电气性能。