Please help to confirm the below questions,
- 1) The below waveform is our test waveform, and the test condition is:
- Ch1 is input signal to pin11, and Ch2 is output signal from pin22
- Pin11 and pin22 are configured GPIO
- The logic level of Ch2 is the same with Ch1. For example, if Ch1 goes high, then Ch2 goes high too.
From the datasheet, the input high voltage of KL02 device is about 3.3V * 0.7 = 2.31V.
But, according to our experiment, the output signal goes high even the input signal is about 1.43V ~ 1.89V. Please help to check the input high/low voltage level.
The CH1 max voltage is 1.89V, min voltage is 1.43V, it's available without this voltage range.
Please help to confirm input high/low voltage level first, thanks.