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PL2551 Datasheet, PDF (1/1 Pages) List of Unclassifed Manufacturers – Universal Serial Bus Specification 2.0 Compliant
PL2551 Product Brochure
v1.1 11/04/13’
1
PL2551
USB2.0 General Purpose Device Controller
OVERVIEW
The PL2551B integrated circuit is a single chip Hi-Speed USB 2.0 General-Purpose Microcontroller (MCU). It
provides customer a cost-effective and time-to-market USB device controller solution. With diversity of IO
ports, it can easily interface with various external devices such as motion sensor, keyboard, mouse, modem,
CMOS sensor, etc. Flexible endpoint configuration including its buffer partition allows users to easily
establish control of isochronous in/out (ISO), bulk-in/out or interrupt in/out (INT) pipes to communicate with
USB host. In addition, it is possible to configure the chip as a composite or a compound device. The
PL2551B is designed to be flexible, high performance and easy-to-use so that customers can easily
implement to their products.
FEATURES
 Universal Serial Bus Specification 2.0 Compliant
 Support with eMMC Specification rev4.5
 Support USB composite device
 Auto detection and switch between USB class
 Support Virtual COM driver as PL2303 operation
 Embedded 8-bits microcontroller with programmable
CPU speed
 Embedded 48KB Flash to store the program code and
data memory
 Embedded 8KB SRAM for program cache space
 Embedded 4K SRAM FIFO controller to configure
each endpoint’s buffer partition
 Support In System Programming (ISP) function
 Provide Flash data protection mode to protect data
read/write functions
 24 general purpose I/O (GPIO) pins
- Provide CMOS Sensor interface which is
compliant with ITU-R BR601/656
- Support I2C for multi-slave control up to 1MHz
- Support SPI Master/Slave up to 10MHz
- 4 PWM pins for LED/fan control
 On-chip 5V-3.3V-1.8V regulator
 PKG : LQFP48 / LQFP64
BLOCK DIAGRAM
Prolific Technology Inc.
7F, #48, Sec.3, Nan-Kang Rd., Taipei, Taiwan 115, ROC
Tel: 886-2-2654-6363 Fax: 886-2-2654-6161
E-mail : sales@prolific.com.tw
http://www.prolific.com.tw