This is a kind of controller.
Part Number: XPT2046
Function: Touch Screen Controller
Package: QFN-16, TSSOP-16, VFBGA-16 Type
Manufacturer: Shenzhen Xptek Technology ( http://www.xptek.com.cn/ )
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Description
The XPT2046 is 4-wire resistive touch screen controller that incorporates a 12-bit 125 kHz sampling SAR type A/D converter. The device 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.
Pinout
Features
1. 12 bit SAR type A/D converter with S/H circuit
2. Low voltage operation (VCC = 2.2V ∼ 3.6V)
3. Low voltage digital I/F (1.5V ∼ VCC)
4. 4-wire I/F
5. Sampling frequency: 125 kHz (max)
6. On-Chip voltage reference (2.5V)
7. Pen pressure measurement
8. On-chip thermo sensor
9. Direct battery masurement
10. Low power consumption (260μA)
Applications
1. Personal digital assistants
2. Portable instruments
3. Point -of-sale terminals
4. Pagers
5. Touch screen monitors
6. Cellular phones
Block Diagram
Other data sheets are available within the file: XPT-2046
XPT2046 Datasheet PDF Download
