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The project is to make LED lights, after this product is pasted on the board, the LED light flickers abnormally, and it will be normal to replace this product of other batches, please help confirm the reason, thank you
Such problems are usually caused by wrong pulses or slow edges at the clock input.
Please show an oscilloscope trace of the clock signal.
Hi Emily,
To echo Clemens, could you please post scope traces and your schematic in order to help look into this issue.