XPT2046 View Datasheet(PDF) - Unspecified
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Description
Manufacturer
XPT2046 Datasheet PDF : 30 Pages
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XPT2046 Touch Screen Controller
General 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
Features
12 bit SAR type A/D converter with S/H circuit
Low voltage operation (VCC = 2.2V ∼ 3.6V)
Low voltage digital I/F (1.5V ∼ VCC)
4-wire I/F
Sampling frequency: 125 kHz (max)
On-Chip voltage reference (2.5V)
Pen pressure measurement
On-chip thermo sensor
Direct battery masurement
Low power consumption (260μA)
Package 16pin QFN
Applications
Personal digital assistants
Portable instruments
Point -of-sale terminals
Pagers
Touch screen monitors
Cellular phones
Copyright©2007, SHENZHEN XPTEK TECHNOLOGY CO.,LTD http://www.xptek.com.cn
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