GL640USB Ver la hoja de datos (PDF) - Genesys Logic

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GL640USB

IEEE-1284 to USB Bridge

Genesys Logic 

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

Revision 1.1

-2-

Jun. 7, 1999

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