CRTOUCH Datasheet, PDF (1/68 Pages) Freescale Semiconductor, Inc – Capacitive and Resistive Touch Sensing Application Specific IC.

Freescale Semiconductor
Data Sheet: Product Preview
Document Number: CRTOUCHDS
Rev. 3, 04/2013
CRTouch
CRTouch Data Sheet
Capacitive and Resistive Touch
Sensing Application Specific IC.
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:
Features
• 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
This document contains information on a product under development. Freescale reserves the
right to change or discontinue this product without notice.
© Freescale Semiconductor, Inc., 2007-2012. All rights reserved.