XPT2046 TSSOP16 4Wire Resistive Touch Screen Controller

Description

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 TSSOP 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 TSSOP Applications: Personal digital assistants Portable instruments Point -of-sale terminals Pagers Touch screen monitors Cellular phones