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PL2305I Product Brochure

V1.0 10/16/12’

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

OVERVIEW

The PL2305 integrated circuit provides a bi-directional bridge between the Universal Serial Bus (USB)

system and IEEE-1284 parallel port printers. It is designed to be a flexible, high performance, and low-cost

single-chip solution for USB cable as well as USB ready peripheral manufacturers.

The PL2305 controller is designed according to the USB Printer Class specification so that default inbox

driver is embedded in most of the popular operating systems such as Windows, Mac, and Linux. No separate

driver is needed to install. The PL2305 is default to negotiate with the printer into Nibble mode for upstream

data and Compatible mode for downstream data transfer.

The external serial EEPROM support gives the user of PL2305 options to customize this chip to show their

identity. The user could modify the Vendor ID, Product ID, Language ID, manufacturer string, and product

string of the final product. They could also use this EEPROM to store authorization/security codes. For large

quantity orders, it is also possible to modify the Maskable ROM (Read Only Memory) of PL2305 to better

represent the final product manufacturer and thus eliminate the need for external EEPROM.

FEATURES

Configurable outbound and inbound buffer

Full compliance with the Universal Serial Bus

Specification Version 1.1.

Full compliance with the Universal Serial Bus Device

Class Definition for Printing Devices Version 1.0.

Full compliance with Nibble mode and Compatible

mode defined in the IEEE std 1284-1994 – “IEEE

Standard Signaling Method for a Bi-directional

Parallel Peripheral Interface for Personal

Computers”

On chip transceivers and regulator for USB interface

Fully automatic high speed bi-directional

communication over parallel port

512 Bytes unified data buffer dynamically allocated

for upstream and downstream data transfer

Pin-to-Pin compatible with PL-2305(Chip Rev H)

USB-IF Logo Compliant: 40001165

Small footprint 48-pin SSOP

PL2305 (Chip Rev I)

USB to Printer Port Bridge Controller

BLOCK DIAGRAM