It is a common method to use a multimeter to measure the quality of the chip. First, make sure the chip is powered off and set the multimeter to the appropriate measurement mode (such as resistance, voltage, or current). Then, according to the specifications and connection mode of the chip, the probe of the multimeter is contacted with the pin of the chip. By measuring the value of resistance, voltage or current, you can determine whether the chip is working properly.
For example, a resistance measurement mode can be used to check whether there is a short or open circuit between the pins of the chip. By measuring the resistance value between the pins, you can determine if there is an abnormal condition.
In addition, the voltage measurement mode can be used to check the power supply of the chip. By measuring the voltage value between the chip's supply pins, it is possible to determine whether the correct voltage input is available.
Finally, the current measurement mode can also be used to check the power consumption of the chip. By measuring the current consumed by the chip, it can be judged whether the chip is working within the normal range.
It should be noted that the specific measurement method and numerical reference should be operated according to the specifications of the chip and the documentation provided by the manufacturer. If you are unsure or encounter difficulties in using a multimeter for chip testing, it is recommended to refer to the relevant technical materials or consult a professional for accurate guidance.