12-bit, 125 kHz controller IC for 4-wire resistive touch panels with SPI-compatible serial interface, 2.2–5.25 V supply support, pressure measurement, auxiliary ADC input, battery monitor, and temperature sensor. TSSOP-16 package.
Analog supply input
X+ touch-panel input
Y+ touch-panel input
X- touch-panel input
Y- touch-panel input
Ground
Battery monitor input
Auxiliary ADC input
Reference voltage input/output
Digital I/O supply input
Pen-contact interrupt output
Serial data output
Conversion busy output
Serial data input
Active-low chip select
Serial/conversion clock input
| Pin | Position | Type | Function | Voltage |
|---|---|---|---|---|
| VCC | power | Analog supply input | ||
| XP | analog | X+ touch-panel input | ||
| YP | analog | Y+ touch-panel input | ||
| XN | analog | X- touch-panel input | ||
| YN | analog | Y- touch-panel input | ||
| GND | ground | Ground | ||
| VBAT | analog | Battery monitor input | ||
| AUX | analog | Auxiliary ADC input | ||
| VREF | analog | Reference voltage input/output | ||
| IOVDD | power | Digital I/O supply input | ||
| PENIRQ | digital | Pen-contact interrupt output | ||
| DOUT | spi | Serial data output | ||
| BUSY | digital | Conversion busy output | ||
| DIN | spi | Serial data input | ||
| CS | spi | Active-low chip select | ||
| DCLK | spi | Serial/conversion clock input |
I2C · SPI · Single data line · 3.3 – 5 V · Breakout
Confirm the data interface matches your host board.
Module pins: VCC, IOVDD, GND, XP, YP, XN, YN, VBAT. Schematik maps them to your board in the app.
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