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I'm  using MOTOROLA MC68HC908QT1 in internal oscillator mode.

On RESET, the internal frequency is 2.58MHz and not 3.2MHz....
If I change OSCTRIM, the frequency change between 2.15MHz and 3.3 MHz (in
datasheet : 2.6MHz => 4MHz).
The pb is the same on different QT1 chip.

On a QT2 chip or on a QT4 chip, the internal frequency is really the good
frequency, 3.2MHz and thet have the good range on OSCTRIM change.

Is somebody have an idea ?




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