Look at the voltage-frequency chart in the data sheet. You're limited to a MAX frequency at lower operating voltages, and it's affected big time by ambient temperature.
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Look at the voltage-frequency chart in the data sheet. You're limited to a MAX frequency at lower operating voltages, and it's affected big time by ambient temperature.
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Thanks Bruce. I replaced the resonator with a 4 MHz part and it ran fine. It was just the erratic behavior with port A that fascinated me.
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