CM8566 is a multi-key capacitive touch detection chip, manufactured by CMOS process, based on 8Bit MCU Base, with stable performance and high anti-interference. The chip supports up to 12 touch channels, 2 hardware PWM outputs, IO hold or synchronous output, etc. The chip can be output in multiple modes through software control. The chip can be widely used in small home appliances, smart homes, touch bracelets, AI smart products and other DC touch button detection products to realize product intelligence.