The H02046 manual details features, pinout, electrical specs, and application circuits for the low‑voltage I/O touchscreen controller.
The H02046 is a 4‑wire resistive touchscreen controller that operates from 1.5 V to 3.6 V I/O voltage and includes a 12‑bit SAR ADC with a synchronous serial interface. It provides internal 2.5 V reference, battery‑monitor channel, auxiliary input, and on‑chip temperature sensor, making it suitable for battery‑powered devices.
The document covers functional block diagrams, pin assignments, electrical characteristics, timing parameters, typical performance curves, and reference application schematics, along with guidelines for internal and external reference operation and mode selection (single‑ended vs differential). This manual is written in Chinese.
| Operating voltage (VCC) | 2.2 V – 3.6 V |
|---|---|
| Digital I/O voltage range | 1.5 V – 3.6 V |
| ADC resolution | 12 bits |
| Power consumption (typical) | 250 mW |
| Maximum junction temperature | 150 °C |
| Storage temperature range | -65 °C – 150 °C |
| ESD rating (touch‑screen pins) | 8000 V |
| Sample rate | 125 kHz |
| Input impedance | 1 GΩ |
| Shutdown current | 0.1 µA |
The controller operates from 2.2 V to 3.6 V supply voltage.
It provides a 12‑bit successive‑approximation ADC.
Typical power consumption is 250 mW.
The touch‑screen pins are rated for 8000 V ESD protection.