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Capacitors can be used for many purposes - for debounce of inputs, power isolation, curcuit loading. Some microcontrollers have D/A converters, oscillators, or transmitters built in and require external capacitors to operate these at specific frequencies.

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14y ago
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12y ago

Because that's what Intel specs as required in order to ensure proper operation.

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Q: Why 33pf capacitor is used in oscillator circuit of microcontroller?
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Related questions

Why Two 33pF capacitors are used with crystal oscillator?

c1 and c2 capacitors with crystal eliminates the Harmonics(Unwanted frequencies) .


Need of 33pf caps with crystal?

The main intension is to eleminate high noice frequency which was jenarated by crystal. Regards, Narayana Reddy