XPT2046
The image is for illustrative purposes only; please refer to the product data sheet for precise specifications.
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| Part Number | XPT2046 |
|---|---|
| Manufacturer |
 XPTEK Technology
|
| Description | The XPT2046 is a 4-wire resistive touch screen controller that incorporates a 12-bit 125 kHz sampling SAR type A/D converter. The XPT2046 operates down to 2.2V supply voltage and supports digital I/O interface voltage from 1.5V to VCC in order to connect low voltage uP. The XPT2046 can detect the pressed screen location by performing two A/D conversions. In addition to location, the XPT2046 also measures touch screen pressure.On-chip VREF can be utilized for analog auxiliary input, temperature measurement and battery monitoring withthe ability to measure voltage from 0V to 5V. The XPT2046 also has an on-chip temperature sensor The XPT2046 is available in 16pin QFN thin package(0.75mm in height) and has the operating temperature range of -40°C to +85°C |
| Product Group | LCD Driver |
| MOQ | 1000 pcs |
| SPQ | 1000 pcs |
| Figure/Case | 16-SOIC |
| Package | T&R Pack |
 PDF Datasheet | |
| Ship From | Hong Kong |
| Shipment Way | DHL / Fedex / TNT / UPS / Others |
| Delivery Term | Ex-Works |
| Send RFQ | sales@signalhk.com |
| Feature | Details |
|---|---|
| Interface Type | SPI (Serial Peripheral Interface) |
| Touch Screen Type | 4-wire resistive |
| Resolution | 12-bit ADC |
| Input Channels | 4 analog inputs (X+, X−, Y+, Y−) |
| Sampling Rate | Up to 125 kHz (typical) |
| Reference Voltage | 2.7V to 5.25V |
| Operating Voltage (Vcc) | 2.7V to 5.25V |
| Temperature Range | -40°C to +85°C |
| Pen Interrupt (PENIRQ) | Yes, active low to detect screen touch |
| Power-down Modes | Multiple modes to reduce power during inactivity |
| Typical Power Consumption | ~200 µA active, <1 µA power-down |
| Conversion Time | 2 µs per sample at 2.7V |
| Package Type | TSSOP-16 |
| Analog Input Range | 0V to VREF |
| Internal Reference | Optional internal reference voltage |
| Command Set | 8-bit command structure to select channel and mode |
| Compatible with | ADS7843 (TI), making it a drop-in replacement |
| Built-in Touch Detection | Yes, via PENIRQ and comparator logic |
| External Capacitor | Optional for filtering on ADC input |
| Data Output Format | 12-bit serial (MSB-first or LSB-first depending on implementation) |
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XPT2046
XPT2046