GL852G データシートの表示（PDF） - Genesys Logic

部品番号

コンポーネント説明

一致するリスト

GL852G

USB 2.0 MTT Hub Controller

Genesys Logic 

GL852G Datasheet

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

 Multiple Transaction translator (MTT)

 MTT provides respective TT control logics for each downstream port.

 Each downstream port supports two-color status indicator, with automatic and manual modes compliant to

USB specification Revision 2.0

 Built-in upstream port 1.5KΩ pull-up and downstream port 15KΩ pull-down resistors

 Support both individual and gang modes of power management and over-current detection for

downstream ports

 Conform to bus power requirements of USB 2.0 specification

 Automatic switching between self-powered and bus-powered modes

 Integrate USB 2.0 transceiver

 Embedded PLL support external 12 MHz crystal / Oscillator clock input

 Optional 27/48 MHz Oscillator clock input (Only available in LQFP48/ LQFN46 package)

 Support compound-device (non-removable in downstream ports) by I/O pin configuration (Only available

in LQFP48/ LQFN46 package)

 Number of Downstream port can be configured by GPIO without external EEPROM (Only available in

LQFP48/ LQFN46 package)

 Built-in 5V to 3.3V regulator

 Improve output drivers with slew-rate control for EMI reduction

 Internal power-fail detection for ESD recovery

 Available package types: 48 pin LQFP, 28 pin QFN, 28 pin SSOP and 46 pin LQFN

 Applications:

 Stand-alone USB hub / USB docking

 UMPC/MID, motherboard on-board applications

 Consumer electronics built-in hub application

 Monitor built-in hub

 Embedded systems

 Compound device to support USB hub function such as keyboard hub applications

©2012 Genesys Logic, Inc. - All rights reserved.

Page 9

Share Link: