TTP223 RED Touch Key Module

The TTP223 Touch Key Module is a capacitive touch switch module based on the TTP223 touch sensing IC. It provides a single touch sensing area measuring 11 x 10.5 mm with a sensing range of approximately 5 mm.

An onboard LED indicates when the sensor is triggered. By default, when touched, the module output switches from low to high. Solder jumpers allow configuration for active low operation or toggle mode if required.

The TTP223 replicates a single tactile button and is designed to replace traditional mechanical switches using capacitive touch detection.

Trigger Setting Modes:
1 → Shorted, 0 → Not Shorted
AB = 00: Non-latching, high TTL output
AB = 01: Self latching, high TTL output
AB = 10: Non-latching, low TTL output
AB = 11: Self latching, low TTL output

Features:

• Supports momentary or latching (toggle) modes
• Supports active high or active low output modes
• Dimensions: 15 mm × 11 mm
• Input voltage: 2V to 5.5V DC
• Response time: ~60 ms in fast mode, ~220 ms in low power mode at VDD = 3V
• Sensitivity adjustable via capacitance (0 to 50 pF)
• Two selectable sampling lengths via SLRFTB pad
• Stable human body touch detection
• Fast mode and low power mode available via LPMB pad
• Supports direct mode and toggle mode via TOG pin
• Open drain output supported via OPDO pin; Q pin is CMOS output
• Output can be configured active high or active low via AHLB pad
• Maximum on-time of 100 seconds available via MOTB pad
• External power on reset pin (RST)
• 0.5 second stabilization time after power up (do not touch during this period)
• Auto calibration with re calibration every 4 seconds when untouched

Package Includes:

• 1 x TTP223 Touch Red Key Module