AR201 is designed for a small size, low power consumption, wide voltage, cost-effective design of capacitive touch sensing IC, can directly replace the traditional mechanical touch of a button: self-locking and non-locking button keys. Has a high anti-jamming capability, anti-EDS more than 5KV, close-up, multi-angle, walkie-talkies and other disturbances have maintained a high degree of reliability and stability. The technology has been widely used for mass production verification maturity, stability, reliability have been consumer electronics, lighting control, electronic toys, household appliances, industrial control, intelligent systems and other applications in the field, new products, new Preferably an essential part of the concept of innovative product design. 2 Features Operating voltage:. 2.4V ~ 5.5V Operating current: max = 2.5uA @ 3V, load has to adapt to the ambient temperature and humidity changes in self-correction features built-de-jitter circuit, which can effectively prevent external noise interference caused by malfunction Built-in LDO simple peripheral circuits, easy to use, low cost package: SOP8 Description: 3.1.1 IC internal low-power mode has been set, the first touch of the maximum response time of 180ms. When the power is low-power mode, the 1st Touch (180ms response) will enter the fast mode from the low-power (80ms response). When no touch, in fast mode 10s before returning to the low power consumption. 3.1.2 IC internally set to enable multi-key, when multiple keys simultaneously detects the touch when its corresponding output sync output. 3.1.3 IC has set up an internal control touch time: a single button for a maximum of 16 seconds. 3.1.4 synchronous mode (Button): Touch Yes, the output there is no touch, no 3.1.5 to keep the output mode (Switch): first touch, the output of a state and remain unchanged, then this touch, the output flip and remain unchanged. 4 applications to replace the traditional mechanical buttons: self-locking button, non-self-locking key consumer electronics products - electronic scales, electronic watches, electronic gifts, electronic health products, electronic audio and video, e-books, electronic digital products, such as liquid surface of the sensor - air humidifiers, water testing, water heater, toilet water level detection sensor human perception - toilet, industrial protection devices and other computer equipment - computers, monitors, fax machines, copiers, shredders,