Microchip MTCH3380P and MTCH3240P capacitive touch controllers support up to 64 buttons with parallel sensing

Microchip Technology has introduced the MTCH3380P and MTCH3240P, two new capacitive touch controllers that handle touch detection internally, making it easier to build display-free HMI devices with touch-sensitive buttons, sliders, and wheels. The main difference between the two controllers is the number of supported touch sensors. The MTCH3380P supports up to 38 self-capacitance or 64 mutual-capacitance keys, while the smaller MTCH3240P supports up to 24 self-capacitance or 32 mutual-capacitance keys. Both controllers use parallel sensing with 12 on-chip ADCs to…

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