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Datenblatt-Suchmaschine für elektronische Bauteile |
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Datenblatt-Suchmaschine für elektronische Bauteile |
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GL850 Datenblatt(PDF) 10 Page - List of Unclassifed Manufacturers |
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GL850 Datenblatt(HTML) 10 Page - List of Unclassifed Manufacturers |
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10 / 40 page  GL850 USB 2.0 4-Port HUB Controller ©2000-2003 Genesys Logic Inc.—All rights reserved. Page 10 CHAPTER 2 FEATURES • Compliant to USB specification Revision 2.0 − 4 downstream ports − Upstream port supports both high-speed (HS) and full-speed (FS) traffic − Downstream ports support HS, FS, and low-speed (LS) traffic − 1 control pipe (endpoint 0, 64-byte data payload) and 1 interrupt pipe (endpoint 1, 1-byte data payload) − Backward compatible to USB specification Revision 1.1 • On-chip 8-bit micro-processor − RISC-like architecture − USB optimized instruction set − Dual cycle instruction execution − Performance: 6 MIPS @ 12MHz − With 64-byte RAM and 2K internal ROM − Support customized PID, VID by reading external EEPROM − Support downstream port configuration by reading external EEPROM • Single Transaction Translator (TT) architecture − Single TT shares the same TT control logics for all downstream port devices. This is the most cost effective solution for TT • Each downstream port supports two-color status indicator, with automatic and manual modes compliant to USB specification Revision 2.0 • Support both individual and gang modes of power management and over-current detection for downstream ports • Conform to bus power requirements • Automatic switching between self-powered and bus-powered modes • Integrated USB2.0 transceiver • 0.35um CMOS technology • PLL embedded with external 12 MHz crystal • Operate on 3.3 Volts • Improved output drivers with slew-rate control for EMI reduction • Internal power-fail detection for ESD recovery • 64-pin LQFP package • Applications: − Stand-alone USB hub − PC motherboard USB hub, Ducking of notebook − Any compound device to support USB HUB function |
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