Ready Play Solutions
Xtrinsic Capacitive and Resistive
Touch-Sensing Platform
Overview
Freescale Ready Play solutions integrate functionality in different applications, allowing
customers to add features while reducing development cost—simplifying design cycles
and enabling scalability in applications and systems.
The Xtrinsic capacitive and resistive touch-sensing platform (CRTouch) enables resistive
touch screens to handle basic gesture recognition and allows the addition of up to four
capacitive electrodes to your system, all packaged on a 5 x 5 mm lead-free 32-pin
QFN. It supports four- and five-wire touch screens and communicates over UART and
I2C communication protocols. The implementation of these technologies enables the
CRTouch to help reduce space, cut software development costs and speed time
to market.
Key Features
• StandardX,Yresistivetouchscreendetection
with optional calibration and built-in filter for
improved stability
• Four-andfive-wirepressuredetection
• Twotouchgesturedetectiononafourwire
screen
• Zoomin/out
• Rotatedirectionindicationandangle
measurement
• Fourcapacitiveelectrodesindependentfrom
touch screen may be configured as keypad,
rotary or slider
• UARTandI2C communication available
Two selectable I2C addresses
UART baud rate auto detection
mechanism
• Eventindicatorsignalforhostprocessor
• Configurablesampleratewithupto200
points per second
• Linux®, Android®andPEGintegration
example code available
• 1.8-to3.6-voltoperation
• 32-pinQFNpackage
• –40°Cto+105°Coperatingtemperature
• Normalrun,sleepandshutdownmodesfor
reduced power consumption
Freescale and the Freescale logo are trademarks of Freescale Semiconductor, Inc., Reg. U.S. Pat. & Tm. Off. Ready Play
and Xtrinsic are trademarks of of Freescale Semiconductor, Inc. All other product or service names are the property of their
respective owners. © 2012 Freescale Semiconductor, Inc.
Document Number: CRTOUCHFS REV 1
For current information about the Xtrinsic CRTouch platform,
please visit freescale.com/CRTouch
Description MSRP (USD)
Part Number CRTOUCHB10VFM $1.8210KU
Development Tools EVBCRTOUCH $85
Tools and Software GUI No cost
Ordering Information
Xtrinsic Capacitive and Resistive Touch-Sensing Platform
Resistive
Touch Screen
Driver
Resistive
Touch Screen Coordinates Filter
Gestures
Detection
Screen Detection
Capacitive
Touch Driver
Keypad
Rotary
Slider
CRTouch System
Controller
CRTouch Ready Play solution
System Communication
and Signaling
Reset
Wakeup
Event
Baud Rate
Detect
RXD/TXD
SDA/SCL
System Calibration
Sampling Config
I2CUART GPIO GPIO
Address
Select
Comm
Selection
VCC
GND
Host MPU/MCU
VCC
GND
Capacitive
Electrodes
Xtrinsic Capacitive and Resistive Touch-Sensing Platform
Freescale: A Leader in Sensing Solutions
Expandingonmorethan30yearsofsensorinnovation,Freescale’sXtrinsicsensingsolutionsare
designed with the right combination of high-performance sensing capability, processing capacity and
customizable software to help deliver smart, differentiated sensing solutions. With Xtrinsic sensors,
our vision is to offer a diverse and differentiated product portfolio to meet the expanding needs of the
automotive, consumer and industrial segments. Xtrinsic solutions offer ideal blends of functionality and
intelligence designed to help our customers differentiate and win in highly competitive markets.
Target Applications
• Controlpanels
• Human-machineinterface
• Keyboardreplacement
• Point-of-saleterminals
• Signaturecapturedevices
• Kiosks