GL640USB datasheet(3/39 Pages) ETC

3 / 39 page

Revision 1.1

Jun. 7, 1999

-2-

GL640USB, GL640USB-A

1. Features

Ø Low-cost solution for full-speed USB device

Ø Applications – Printer, Scanner, PC Camera, External Storage Device, CD-ROM

Ø IEEE 1284 interface supports bi-directional communication

Ø On-chip EPP engine

Ø On-chip 8-bit micro-controller

Ø USB Specification Compliance

− Conforms to USB 12Mbps Specification, Version 1.0

− Supports 1 device address and 4 endpoints

Ø 2 sets of 64-byte FIFO with dynamic allocation

− a. 64-In/64-Out

− b. 64-In0/64-In1 ping pong buffer

− c. 64-Out0/64-Out1 ping pong buffer

Ø Integrated USB transceiver

Ø On-chip 3.3v regulator

Ø Improved output drivers with slew-rate control to reduce EMI

Ø 12MHz external clock

Ø On-chip PLL to support 48MHz internal clock

Ø Internal power-on reset(POR)

Ø Supports suspend/normal mode power management

Ø Customized firmware/driver for scanner application

Ø The driver allows current Win98/Win95 OSR-2 printer drivers to print seamlessly to USB

Ø Fully plug & play compatible

Ø Single-chip solution in cost saving 40-pin SOJ(GL640USB) / 48-pin LQFP(GL640USB-A)

Ø Special pad-design to support EPP/USB dual-interface application

GL640USB 数据表(PDF) 3 Page - List of Unclassifed Manufacturers