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Clock signal from Arduino crystal input pins? Answered

I'm interfacing an Arduino to a chip that needs a 1 MHz clock signal. Can I take one of the Arduino's clock input pins an input it into a 74169 (4 bit cascading counter) to generate a 1 MHz signal?  If not how do I create a 1 MHz 50% duty cycle signal?  Thanks in advance.

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steveastrouk
steveastrouk

Best Answer 10 years ago

Yes, you can get away with that, there is usually technically a clock in and a clock out pin, across which the crystal is connected. Connect the load to the clock out pin, and keep the traces VERY short, or you will damp out the crystal.

Steve