DHRUV-PRO 2-Pic Touch Key Switch Module Touching Button Sensor Self-Locking/No-Locking Capacitive Switches Single Channel Reconstruction TTP223 15*11mm 2.5-5.5V Electronic Components Electronic Hobby Kit

TTP223 Capacitive Touch Sensor Module. The TTP223 is a touchpad detector IC replicating a single tactile button. The TTP223 is a touchpad detector IC replicating a single tactile button. This touch detection IC is designed for replacing traditional direct button key with diverse pad size. Features : Supports momentary or latching/toggle modes. Supports Active High or Active Low output signal modes. Dimensions : 15mm x 11mm. Input Voltage : 2 Volt – 5.5 Volts DC. The response time max ~ 60mS in fast mode, ~220mS at low power mode @VDD=3V. Sensitivity can adjust by the capacitance(0~50pF). Have two kinds of sampling length by pad option(SLRFTB pin). Stable touching detection of the human body for replacing traditional direct switch key. Provides Fast mode and Low Power mode selection by pad option(LPMB pin). Provides direct mode、toggle mode by pad option(TOG pin). Open drain mode by bonding option, OPDO pin is open drain output, Q pin is CMOS output. All output modes can be selected active high or active low by pad option(AHLB pin). Have the maximum on time 100sec by pad option(MOTB pin). Have external power-on reset pin(RST pin). After power-on have about 0.5sec stable-time, during the time do not touch the keypad, and the function is disabled. Auto calibration. Re-calibration period is about 4.0 sec when the key has not be touched.