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Technical content

Interface Copyright © 2010 by Silicon Laboratories 7.21.2010 Connect to VBUS or External Supply VBUS GND USB Connector Touch Screen Module UART / SPI / SMBus (GPIO if needed) CP2501 Oscillator USB Interface Peripheral Function Controller Full-Speed

12 Mbps

& Monitor REGIN VDD GND VBUS Communications Interfaces

8051 Controller

Single-Chip USB HID Touch-Screen Bridge Programmable Touch-Screen Interface - Adds Windows-compatible USB HID touchscreen interface to touch-screen modules - Supports multiple touch points and pen inputs - Supports basic mouse functions - Includes a programmable 8051-based controller that is pre-programmed with USB interface - Supports most common touch-screen module  interfaces: UART, SPI and I2C. UART Interface - Data Bits: 5, 6, 7, and 8 - Stop Bits: 1, 1.5, and 2 - Parity: Odd, Even, Mark, Space, and None - Baud Rates: 9600 bps to 500 kbps SPI Master Interface - 4-wire SPI Master with Chip Select - Configurable Clock Polarity and Phase - Clock speeds up to 4 MHz SMBus / I2C Master Interface - Operates at configurable clock rates up to 400 kHz - Supports configurable slave address GPIO Capability - CP2501 supports 16 GPIO pins - Configurable as inputs, open-drain outputs or push- pull outputs High-Speed 8051 µC Core - 48 MHz or 24 MHz system clock - Pipelined instruction architecture; executes 70% of instructions in 1 or 2 system clocks User Memory Space - 53 kB Flash - 3.5 kB RAM USB Peripheral Function Controller - HID Touch Screen class device - USB Specification 2.0 compliant (full-speed) - Built-in oscillator - Configurable USB parameters such as VID, PID, and strings - Supports remote wakeup Programming Options - Obtain pre-programmed parts from the factory - Program memory in-system - Program over USB using bootloader Supply Voltage 3.0 to 3.6 V - Built-in voltage supply monitor - Built-in 3 V regulator

Ordering Information

CP2501-B01-GM (QFN-32, 5x5 mm) Temperature Range: –40 to +85 °C