MICROPROCESSOR AND MICROCONTROLLER

Detailed explanation-1: -Maximum frequency you can use is 20MHz. You can use a 4MHz crystal also. The higher the frequency of crystal used, the faster the controller works (But they’ve set limit for it – Maximum 20MHz which is faster enough for all applications using this controller.

Detailed explanation-2: -This is a Frequency counter with PIC Microcontroller. It is available up to 38MHz at Normal HF mode. It is also available up to 2.4GHz with Fujitsu’s MB-506 external prescaler.

Detailed explanation-3: -PICs are expected to operate from L to Ka bands (specifically, 950 MHz to 40 GHz); wider upper frequency range is also desired.