PL2305I Datasheet, PDF (1/1 Pages) List of Unclassifed Manufacturers – Configurable outbound and inbound buffer

PL2305I Product Brochure
V1.0 10/16/12’
1
PL2305 (Chip Rev I)
USB to Printer Port Bridge Controller
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
BLOCK DIAGRAM
Prolific Technology Inc.
7F, #48, Sec.3, Nan-Kang Rd., Taipei, Taiwan 115, ROC
Tel: [phone] Fax: [phone]
E-mail: [e-mail]
http://www.prolific.com.tw