The YS816A capacitive touch chip functional description provides overview, features, pinout, electrical characteristics, and application design details.
This document describes the YS816A capacitive touch sensing chip, highlighting its ability to detect touch through insulating materials such as glass or plastic. It outlines the chip's features, including 16‑channel support, adjustable sensitivity, low standby current, fast initialization, and waterproof capability, making it suitable for small appliances like range hoods and water heaters.
Technical information covers pin assignments, electrical limits, I²C communication details, parameter settings for calibration and sensitivity, package options (SOP24, SSOP24), and ordering data. Application notes provide reference circuits and design recommendations for reliable touch key implementation. This manual is written in Chinese.
| Supply voltage range | VSS‑0.3 V to VSS+6.0 V |
|---|---|
| Operating voltage (VDD) | 2.7 V – 5.5 V |
| Operating temperature range | -40 °C to 85 °C |
| Standby current | ≈14 µA average (15 µA at 3 V, ≤20 µA at 5 V) |
| Maximum touch channels | 16 |
| I²C communication speed | < 100 kHz |
The YS816A supports up to 16 touch channels.
The standby current is about 14 µA average, with 15 µA at 3 V and up to 20 µA at 5 V.