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       CT8224 is a capacitive key touch and proximity sensing switch control chip, replacing traditional mechanical structure switches. The product is manufactured using CMOS technology, with built-in LDO, stable structural performance, low power consumption, and multiple output modes can be configured through pins. The chip can support up to 4 channels of input detection and corresponding outputs, and is widely used in DC products such as smart homes, educational toys, lighting control, etc. to achieve product intelligence