TTP223 is a single channel touch detection Ic used to sense human touch and replace traditional mechanical push-buttons in electronic designs. They are widely used in hobby electronics, embedded systems, smart appliances, and user interfaces where a touch-sensitive input is required.
Specifications:
- Operating voltage: 2.0 V – 5.5 V
- Quiescent current: < 1 µA (low-power mode, typical)
- Response time: ~60 ms (typical touch detection)
- Output drive: up to ~8 mA (typical I/O capability)
- Single channel: 1-key capacitive touch input




