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This application note describes a technique used to calibrate the internal
oscillator on the PIC12F6XX devices. This technique allows the internal oscillator
to
be calibrated within ± 1%. See the test circuit shown in Figure 1.
This application note is useful in the following applications.
- High volume production environment.
- Battery applications using on-board calibration to recalibrate the internal
RC oscillator as the battery voltage drops.
- Applications that are exposed to a varying voltage and temperature range
could have intelligent on-board recalibration.
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