I noticed often times the external crystals frequency is multiplied to arrive at a microcontrollersmicrocontroller's clock speed. Why is this done?
Take, for example, the TI CC2650, in. In its default configuration is, it uses ana 24 MHz crystal to arrive at a 48 MHz clock frequency. 48 MHz crystals are widely available, so why not use that?
Also, wouldWould this not also double the tolerance range of the crystal?