CZH8022S is a two-touch channel with two logic control outputs of capacitive touch chip. It has the following features and advantages: It can realize various logic switch control by touch. Operation is simple and convenient. It can realize touch function in the case of isolation protection with medium (such as glass, acrylic, plastic, ceramic, etc.). It has high safety. The application voltage range is wide, and it can be selected between 2.4~5.5V. The application circuit is simple, with few peripheral devices, easy to process, and low cost. It has good anti-power interference and mobile phone interference characteristics. EFT can reach ±2KV or above; In the case of close-range, multi-angle mobile phone interference, the touch response sensitivity and reliability are not affected.