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CP2501 Touch Screen Solutions Datasheet by Silicon Labs

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Touch Screen USB Bridge Solutions
DESCRIPTION
Powerful and easy to develop, Silicon Labs’ CP2501 bridges USB communication between
the touch screen controller(s) and the host. The CP2501 USB touch screen bridge is
the only product of its kind that includes out-of-the-box USB support for touch screens,
providing pre-programmed touch screen USB interface firmware to enable developers to
quickly configure settings.
The CP2501 bridge is Windows® 7 touch interface compliant and supports the USB
HID digitizer class. The in-device software and configuration wizard facilitate setup of
USB communication with the host and requires minimal code development. Developers
can significantly shorten the time and software expertise required for USB interface
development.
MORE INFORMATION AND DOCUMENTATION DOWNLOADS AT: silabs.com/interface
www.silabs.com/CP2501
CP2501 FEATURES
Pre-programmed with touch screen USB
interface firmware
High-speed 48 MIPS CPU
53 kB of user accessible Flash memory
3.5 kB user accessible RAM
Up to 16 GPIO pins
Built-in 3 V regulator
USB 2.0 compliant
Windows® 7 touch interface compliant
USB, UART, I2C, SPI
32-pin QFN (5 mm x 5 mm) package
APPLICATIONS
Laptops
All-in-one PC
Tablets
eBooks
Automated Teller Machines (ATM)
Kiosks
Point-of-Sale Terminals
EASY BRIDGE FOR TOUCH SCREEN
USB COMMUNICATION
INTERFACE SOLUTIONS
CP2501 BLOCK DIAGRAM
Communications
Interfaces Touch
Screen
Module
UART/
SPI/
SMBus
(GPIO if
needed)
8051
Controller
USB HID
Touch Screen
Interface
User
Programmable
Code
USB Interface
Full-Speed
12 Mbps
Transceiver
Peripheral
Function
Controller
Product
Customization
Voltage
Regulator
& Monitor
VBUS
D+
D
GND
VBUS
D+
D
USB
Connector
Connect to
VBUS or
External
Supply
Oscillator
VDD
GND
REGIN
UART
Controller
SPI Master
SMBus Master
GPIO
Controller
— /CP2501 E msonunngmmn mea m amen up oummmmmmw memu D- FSC SILIEUN HHS
© 2010, Silicon Laboratories Inc. Silicon Laboratories and the Silicon Labs logo are trademarks or registered trademarks of Silicon
Laboratories Inc. All other product or service names are the property of their respective owners. For the most up to date information
please see your sales representative or visit our website at www.silabs.com.
WEB, 2500, September 2010, Rev A SEL-TSB-2010A
Touch Screen USB Bridge Solutions www.silabs.com/CP2501
INTERFACE SOLUTIONS
PART NUMBER DESCRIPTION RAM (BYTES) DIGITAL
PORT
I/O PINS COMMINICATIONS TIMERS
(16-BIT) INT.
OSC TEMPERATURE
RANGE OTHER PACKAGE EVAL KIT
CP2501 Touch Screen
USB Bridge 4352 25 I2C, SPI,
UART, USB 4 1.5% 40 to 85 ºC Windows-compatible USB
HID touchscreen interface QFN32 CP2501EK
Touch Screen USB Bridge Controller
CP250x CONFIGURATION WIZARD
CP2501 EVALUATION KIT DEMO BOARD
Development Tools and Turnkey Support
CP250x Configuration Wizard
Silicon Labs provides an easy-to-use configuration wizard
that works with the CP2501 touch screen USB firmware
development tool. This intuitive software GUI enables
engineers to easily create the firmware project, customize
the USB parameters and generate USB HID touch screen
descriptors through a series of seven tabs:
1. Device
2. Communication
3. Screen
4. Touch
Once the tabs are configured, the project is ready to be
generated. A pre-programmed USB bootloader enables
on-the-fly in-system firmware updates, and an API library
is provided for all common touch screen configurations.
This wizard can help shorten time to market by three to six
months.
www.silabs.com/SoftwareDownloads
CP2501 Development Kit (CP2501DK)
The CP2501DK fully functional “out-of-the-box” development environment
provides easy access to all of the CP2501 pins, and includes everything
needed to download code and start developing within minutes:
CP2501 target board
Quick-start guide
AC to DC power adapter
USB debug adapter (USB to debug interface)
USB cable
CD-ROM which includes the following: Silicon Labs Integrated
Development Environment (IDE),Raisonance and Keil 8051 development
tools (macro assembler, linker, evaluation C-compiler), Source
code examples and register definition files, Documentation, CP2501
development kit user’s guide
CP2501 Evaluation Kit (CP2501EK)
The CP2501 touch screen evaluation board demonstrates the touch screen
USB bridge in action. This evaluation board includes a glass sensor with
a laminated glass lens. Engineers can evaluate performance and develop
their own touch screen solutions.
XX%
SILICON LABORATORIES INC. | 400 W. CESAR CHAVEZ | AUSTIN, TX 78701 | 877-444-3032 | SILABS.COM/INTERFACE
5. Pen
6. Mouse
7. GPIO

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