Capacitive multi-button touch detection IC CM8566 V4.0 release, CM8566 is a multi-key capacitive touch detection chip with CMOS process manufacturing, based on 8bit MCU Base, performance stable, high anti-interference. The chip supports up to 12-way touch channels, supports 2 hardware PWM output, IO remains, or synchronous outputs. The chip can have a variety of mode outputs through software control. The chip can be widely used in small appliances, smart home, touch bracelet, AI smart product and other DC touch button detection products, realize product intelligence. V4.0 adds SOP8 package than the previous version.