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GL850G拥有低耗电、温度低及接脚数减少等产品特性。它支援4个下游连接埠,可完全支援USB2.0/1.1规格,因此无论是与主机端或是与其他USB设备介面的传输连接(高速/全速/低速设备传输)皆能完全相容。GL850G同时拥有过载保护功能,提供良好的EMI/ESD处理,亦提供self-power及bus-power自动侦测模式,使用者将无需作重新插拔的动作。由于集线器为电脑主机与周边设备的中继站,以目前USB周边设备在市场上的普及率,以及周边设备普及种类来看,USB集线器的市场需求已大幅成长。GL850G可使用在独立型集线器、笔记型电脑基座或者与其他USB装置组合成USB复合集线器等不同的应用领域,不但能简化配线的方式,也协助使用者易于管理,更能达到扩充效能的目的。
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GL850G
USB 2.0
HUB Controller
Datasheet
Revision 1.04
Aug. 08, 2007
Genesys Logic, Inc.
GL850G USB 2.0 Low-Power HUB Controller
©2000-2007 Genesys Logic Inc. - All rights reserved. Page 2
Copyright:
Copyright © 2007 Genesys Logic Incorporated. All rights reserved. No part of the materials may be
reproduced in any form or by any means without prior written consent of Genesys Logic, Inc.
Disclaimer:
ALL MATERIALS ARE PROVIDED “AS IS” WITHOUT EXPRESS OR IMPLIED WARRANTY OF ANY
KIND. NO LICENSE OR RIGHT IS GRANTED UNDER ANY PATENT OR TRADEMARK OF
GENESYS LOGIC INC.. GENESYS LOGIC HEREBY DISCLAIMS ALL WARRANTIES AND
CONDITIONS IN REGARD TO MATERIALS, INCLUDING ALL WARRANTIES, IMPLIED OR
EXPRESS, OF MERCHANTABILITY, FITNESS FOR ANY PARTICULAR PURPOSE, AND
NON-INFRINGEMENT OF INTELLECTUAL PROPERTY. IN NO EVENT SHALL GENESYS LOGIC
BE LIABLE FOR ANY DAMAGES INCLUDING, WITHOUT LIMITATION, DAMAGES RESULTING
FROM LOSS OF INFORMATION OR PROFITS. PLEASE BE ADVISED THAT THE MATERIALS
MAY CONTAIN ERRORS OR OMMISIONS. GENESYS LOGIC MAY MAKE CHANGES TO THE
MATERIALS OR TO THE PRODUCTS DESCRIBED THEREIN AT ANY TIME WITHOUT NOTICE.
Trademarks:
is a registered trademark of Genesys Logic, Inc.
All trademarks are the properties of their respective owners.
Office:
Genesys Logic, Inc.
12F, No. 205, Sec. 3, Beishin Rd., Shindian City,
Taipei, Taiwan
Tel: (886-2) 8913-1888
Fax: (886-2) 6629-6168
http://www.genesyslogic.com
GL850G USB 2.0 Low-Power HUB Controller
©2000-2007 Genesys Logic Inc. - All rights reserved. Page 3
Revision History
Revision Date Description
1.00 05/10/2006
First formal release
1.01 08/30/2006
Updated DC Supply Current, Table6.6, P.23
1.02 11/03/2006
Modify 93C46 Configuration, Table 5.1, P.19
1.03 01/17/2007
Modify Table 6.1-Maximum Ratings, P.21
1.04 08/08/2007
Modify Table 6.6-DC Supply Current, P.23
GL850G USB 2.0 Low-Power HUB Controller
©2000-2007 Genesys Logic Inc. - All rights reserved. Page 4
TABLE OF CONTENTS
CHAPTER 1 GENERAL DESCRIPTION................................................... 7
CHAPTER 2 FEATURES.............................................................................. 8
CHAPTER 3 PIN ASSIGNMENT ................................................................ 9
3.1
P
INOUTS
...................................................................................................... 9
3.2
P
IN
L
IST
.................................................................................................... 10
3.3
P
IN
D
ESCRIPTIONS
................................................................................... 10
CHAPTER 4 BLOCK DIAGRAM.............................................................. 13
CHAPTER 5 FUNCTION DESCRIPTION............................................... 14
5.1
G
ENERAL
.................................................................................................. 14
5.2
C
ONFIGURATION AND
I/O
S
ETTINGS
....................................................... 16
CHAPTER 6 ELECTRICAL CHARACTERISTICS............................... 21
6.1
M
AXIMUM
R
ATINGS
................................................................................. 21
6.2
O
PERATING
R
ANGES
................................................................................ 21
6.3
DC
C
HARACTERISTICS
............................................................................ 21
6.4
P
OWER
C
ONSUMPTION
............................................................................ 23
CHAPTER 7 PACKAGE DIMENSION..................................................... 24
CHAPTER 8 ORDERING INFORMATION ............................................ 25
GL850G USB 2.0 Low-Power HUB Controller
©2000-2007 Genesys Logic Inc. - All rights reserved. Page 5
LIST OF FIGURES
F
IGURE
3.1-
--
-GL850G
48
P
IN
LQFP
P
INOUT
D
IAGRAM
................................................... 9
F
IGURE
4.1
–
GL850G
B
LOCK
D
IAGRAM
(
SINGLE
TT) ................................................... 13
F
IGURE
5.1
–
O
PERATING IN
USB
1.1
SCHEME
................................................................. 15
F
IGURE
5.2
–
O
PERATING IN
USB
2.0
SCHEME
................................................................. 16
F
IGURE
5.3
–
P
OWER ON SEQUENCE OF
GL850G............................................................. 17
F
IGURE
5.4
–
T
IMING OF
PGANG/SUSPEND
STRAPPING
.............................................. 17
F
IGURE
5.5
–
I
NDIVIDUAL
/GANG
M
ODE
S
ETTING
.......................................................... 18
F
IGURE
5.6
–
SELF/BUS
P
OWER
S
ETTING
...................................................................... 18
F
IGURE
5.7
–
LED
C
ONNECTION
...................................................................................... 19
F
IGURE
5.8
–
S
CHEMATICS
B
ETWEEN
GL850G
AND
93C46............................................ 20
F
IGURE
7.1
–
GL850G
48
P
IN
LQFP
P
ACKAGE
............................................................... 24
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