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[SOLVED] maximum frequency in pic 16 & 18

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Mohamed Slama

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hi all

i want to know the maximum frequency at pin T0CK1 in 16f877a & 18f452 to know if i used these pics as a frequency counter will count to what Hertz ?

i try the datasheet but i cant extract these information ...
 


Re: maximum frequency in pic 16 & 18

See section 5.2 of PIC16F877A datasheet, its named Using Timer0 with an External Clock.

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Also see Table 17-6 of PIC16F877A datasheet, it is named Timer0 and Timer1 External Clock Requeriments, parameters 40, 41 & 42. Here the period is in nanoseconds, convert it to Hertz. For 18F... do the same check.
 

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