MCU-based 4-Channel Capacitive Touch Sensor * Properties - 8-bit Turbo 80C51 Architecture (4 clock cycles / 1 machine cycle) - Max. 5 Programmable I/O pins (Bi-direction, Open-drain output, Push-pull output) - Power-on-Reset (POR) by Low Voltage Detector (LVD) - 2 Selectable Internal ring Oscillators (8MHz / 40KHz) - Programmable Wotchdog Timer - 3 Channel 16-bit Timer / Count..