Freescale Semiconductor Evaluation Board for Touch Sensing Platform EVBCRTOUCH EVBCRTOUCH Datenbogen

Freescale Semiconductor
Data Sheet: Product Preview

Document Number: CRTOUCHDS

Rev. 3, 04/2013

© Freescale Semiconductor, Inc., 2007-2012. All rights reserved.

This document contains information on a product under development. Freescale reserves the 
right to change or discontinue this product without notice.

The CRTouch is a Ready Play solution device designed to serve as a four wire and five wire resistive touch driver and a 
capacitive touch sensing device in a single 32-pin QFN package. It provides all the signal interfacing and processing to calculate 
X and Y coordinates as well as to detect and process two touch gestures for human-machine interface applications. It’s key 
features are:

•

X and Y coordinates calculated from a resistive touch screen with built-in filter to improve stability

•

Slide gesture detection for single touch.

•

Two touch gesture detection for resistive four wire screens
— Zoom In and  Zoom Out
— Rotate with clockwise and counter clockwise indication.

•

Four capacitive keys in different configurations
— Rotary
— Slider
— Keypad

•

UART communication and I2C communication available

•

Baud-rate auto detection pin to enable automatic synchronization with any UART baud-rate between 9600 and 
115200 bps using the same UART RX pin

•

Configurable scanning period that can calculate up to 200 coordinate points per second

•

1.8 to 3.6 volts operation

•

32-pin QFN package

•

–40 °C to 105 °C operating temperature

•

Normal Run mode, Sleep mode, and Shutdown mode for lower power consumption operation