68HC908QT1

Do you have a question? Post it now! No Registration Necessary

Translate This Thread From English to

Hi,
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 ?

Thanks,

Yvan

**********************
            YBDesign
  http://www.ybdesign.fr
**********************




Site Timeline