GL650USB各脚功能电路原理芯片引脚定义引脚图及功能IC贸易商-中国IC网-芯三七

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产品型号GL650USB的概述

GL650USB芯片概述 GL650USB是一款用于USB 2.0接口的集成电路芯片，主要应用于数据传输和设备连接。随着电子产品的普及，USB接口已经成为了设备间接口的标准，GL650USB芯片因其高性能和多样化的功能而受到广泛关注。在不同的应用场景中，GL650USB可以作为主控制器或从控制器，以满足不同类型设备的需求。 GL650USB详细参数 GL650USB的技术参数如下: - 工作电压: 4.5V至5.5V - 工作温度: -40℃至85℃ - 数据传输速率: 480 Mbps（USB 2.0标准） - 封装类型: TQFP-32 - 引脚数: 32个引脚 - 输入/输出类型: CMOS - 最大工作电流: 250mA - 支持标准: USB 2.0, 兼容USB 1.1设计 - 信号线数量: 4个信号线（D+, D-, VCC, GND）通过这些参数可以看出，GL6...

产品型号GL650USB的Datasheet PDF文件预览

Genesys Logic, Inc.

GL650USB

USB 4 PORT HUB CONTROLLER

DATA SHEET, Version 1.2

Aug. 18, 2000

Genesys Logic, Inc.

10F, No.11, Ln.3, Tsao Ti Wei, Shenkeng, Taipei, Taiwan

Tel: 886-2-2664-6655

Fax: 886-2-2664-5757

http://www.genesyslogic.com

GL650USB 4 PORT USB HUB CONTROLLER

FEATURES

· High performance and low-cost solution for USB hub

· USB Specification Compliance

Conforms to USB specification Rev. 1.1

Supports 1 device address and 2 endpoints

· 8-bit micro-processor

RISC-like architecture

USB optimized instruction set

Single cycle instruction execution

Operation Speed: DC to 24 MHz clock input

Performance: 12 MIPS @ 24MHz

· I/O ports

4-port hub

· Internal memory

64 bytes of RAM

1.75K ´ 14 of program ROM

· On-chip 3.3v output

No external regulator required

· Integrated USB transceiver

· 12 MHz external clock

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

· Internal power-on reset(POR)

· Internal power-fail detector for ESD recovery

· Support suspend/normal mode power management

· Support power management for downstream port devices

· Automatic switching between self/bus powered mode

· Smart LED traffic indicator

The higher data traffic flows through one port, the higher frequency that port’s

LED will blink.

· Applications:

Stand-alone USB hub

PC motherboard USB hub

· 48 pin LQFP package

Revision 1.2

08/18/00

GL650USB 4 PORT USB HUB CONTROLLER

FUNCTION OVERVIEW

The GLI650USB is a 5 port USB hub with 1 upstream port and 4 downstream ports. It

uses an 8-bit RISC-like uC to encode/decode the host commands. The GL650USB is

designed mainly for stand-alone hub and can also be integrated in PC motherboard or any

other devices to support USB hub function. The GL650USB can switch between self-

power and bus-power automatically without re-plug in. The GL650USB can be

configured as individual mode or ganged mode for the power management of

downstream port devices. To prevent from abnormal current consumption of downstream

port devices, the GL650USB supplies power enable flags by reading the over-current

flags. The GL650USB supports smart traffic indication through the LED lighting. The

higher data traffic flows through one port, the higher frequency of that port’s LED blinks.

To minimize the power consumption, the GL650USB will turn LED off and stop the

clock when they are suspended.

PIN DEFINITIONS AND DESCRIPTIONS

GL650USB

Pin No.

Name

I/O

Description

Upstream port USB data+

Upstream port USB data-

Analog ground

DP0

DM0

AGND

15K resister pull low

DP1

DM1

I/O

Downstream port 1 USB data+

Downstream port 1 USB data-

15K resister pull low

DP4

DM4

AVCC

DP2

DM2

VCP

DP3

DM3

SUSPND

SELF

LED1

LED2

LED3

I/O

Downstream port 4 USB data+

Downstream port 4 USB data-

Analog VCC(5V)

Downstream port 2 USB data+

Downstream port 2 USB data-

3.3V output

15K resister pull low

I/O

Downstream port 3 USB data+

Downstream port 3 USB data-

Suspend indication output

1: SELF-powered. 0: INDIVIDUAL-powered

LED traffic indicator for downstream port 1

LED traffic indicator for downstream port 2

LED traffic indicator for downstream port 3

Reset input

RESET

LED4

OVCUR4#

LED traffic indicator for downstream port 4

Over current flag for downstream port4

PWRENB4#

Power enable for downstream port 4

Revision 1.2

08/18/00

GL650USB 4 PORT USB HUB CONTROLLER

TEST

XTAL2

XTAL1

DGND

PWRENB3#

OVCUR3#

DVCC

PWRENB2#

OVCUR2#

PWRENB1#

OVCUR1#

Test mode input

Ceramic resonator or crystal out

Ceramic resonator or crystal in

Digital ground

Power enable for downstream port 3

Over current flag for downstream port3

Digital VCC(5V)

Power enable for downstream port 2

Over current flag for downstream port2

Power enable for downstream port 1

Over current flag for downstream port1

Note 1: “#” means low active

Note 2: If using crystal, TEST pull low. If using oscillator, TEST pull high.

Table 1 GL650USB Pin Definitions and Descriptions

DP0

DM0

AGND

DGND

XTAL1

XTAL2

TEST

DP1

DM1

PWRENB4#

DP4

DM4

AVCC

OVRCUR4#

LED4

RESET

GGL6L56500UUSSBB-A

Revision 1.2

08/18/00

GL650USB 4 PORT USB HUB CONTROLLER

BLOCK DIAGRAM

UPSTREAM

PORT

12 MHz

D+

D-

TRANS-

CEIVER

PLL

Registers

SIE

HUB REPEATER

Micro-

Controller

PORT CON-

TROLLER

PORT CON-

TROLLER

ROM

RAM

TRANS-

CEIVER

TRANS-

CEIVER

D+

D-

LED

D-

D+

LED

DOWNSTREAM

PORT 4

DOWNSTREAM

PORT 1

Revision 1.2

08/18/00

GL650USB 4 PORT USB HUB CONTROLLER

MNEMONIC

DEVCTL

EVTFLG

RXCTL0

TXCTL0

TXCTL1

FFDAT

BUFCTL

PORTSEL

HUB_STAT_CHG

PORT_STATUS

BUS_PORT_DATA

HOST_CMD

ENP1_IND

TRXFLAG

LED_INIT

GPIOD

OFFSET

DESCRIPTION

Device control register

USB function interrupt flag

Endpoint 0 RX control

Endpoint 0 TX control

00h

01h

02h

03h

04h

05h

06h

07h

08h

09h

0Ah

0Bh

0Ch

0Dh

0Eh

0Fh

10h

11h

Endpoint 1 TX control

Data buffer (FIFO) I/O port

Data buffer control register

Hub port to be configured

Hub status and status change indicator

Hub ports status indicator

Hub ports status change indicator

Host command to downstream ports

Endpoint 1 indicator

Downstream port traffic flag

LED initial state

General purpose I/O pin status

Chip revision

REV

DEVSTUS

USB device address and configuration status

Terminology:

R/O:

read only

read / write

read / write “1” to clear

write only

R/W:

R/W1C:

W/O:

DEVCTL

( offset 00, default = 00h )

R/W

R/O

USBRDY SFRAME

SELF

GANG

PWRDN

USBRDY

: 0 - USB interface is not ready. The device drives USB with SE0.

1 - USB interface is ready. The device stops driving USB with SE0.

After power-on reset, USBRDY is cleared and the device looks like

disconnected. Set USBRDY to ‘1’ to enable USB interface.

: short frame option for test purpose

Set SFRAME to ‘1’ will shorten frame length to 1/15 ms. It is to shorten the

time required for test.

SFRAME

PWRDN

: power down mode

In suspend state, firmware can set PWRDN to put the controller into power

down mode. In this mode, the embedded micro-controller and most internal

activities are frozen. Hardware will automatically clear PWRDN upon

hardware reset or resume activities occur.

Revision 1.2

08/18/00

GL650USB 4 PORT USB HUB CONTROLLER

SELF

: 0 - HUB is bus powered.

1 - HUB is self powered.

: 0 - HUB is in individual mode.

1 - HUB is in ganged mode.

GANG

EVTFLG

R/W1C

( offset 01, default = 00h )

R/W1C

SOF

C_LCPWR WAKEUP

SUSPD

EP1TX

EP0TX

EP0RX

USBRST

Interrupt event flag –

EP0RX

EP0TX

EP1TX

SUSPD

: a SETUP or OUT transaction to endpoint 0 is accepted

: USB host controller accepts data transmitted via endpoint 0.

: USB host controller accepts data transmitted via endpoint 1

: the controller goes into suspend state

WAKEUP

SOF

C_LCPWR

USBRST

: remote wakeup is detected when global suspended

: SOF detected or generated by HUB timer.

: POWER source change.

: End of USB reset

RXCTL0

R/W

RXDIS

Status of endpoint 0 receiving –

( offset 02, default = 40h )

R/O

RXSETUP RXOUT

RXSEQ

RXCNT3 RXCNT2 RXCNT1 RXCNT0

RXCNT3~0

: EP0 received data byte count.

RXSEQ

: 1 - The received data PID is DATA1

0 - The received data PID is DATA0

RXOUT

RXSETUP

RXDIS

: 1 - The received token PID is OUT.

: 1 - The received token PID is SETUP.

: 0 - Endpoint 0 FIFO is empty and ready for data-packet receiving.

1 - Endpoint 0 FIFO is filled with data and will reject the new-coming data

packet.

If RXDIS = 1, the device will not accept an OUT transaction addressed to it, and will respond

with a NAK to an error-free transaction. Hardware will automatically set RXDIS after a

successful receiving. After processing, the micro-controller should clear RXDIS to enable next

data-packet receiving or free FF0 for filling of the data to transmit. Note that a SETUP

transaction addressed to the device is always accepted even though RXDIS = 1.

TXCTL0

( offset 03, default = 00h )

R/W

EP0STL

R/W

EP0OE

EP0SEQ

EP0CNT3 EP0CNT2 EP0CNT1 EP0CNT0

Endpoint 0 transmit setting –

EP0CNT3~0

: number of data bytes to transmit

EP0OE

: enable data transmit

1 – ready to transmit data packet

0 – not ready to transmit data packet (default)

: data packet type

0 –DATA0

1 –DATA1

EP0SEQ

EP0STL

: set endpoint 0 stall

1 – EP0 will respond to USB host controller with STALL packet

EP0STL will be automatically cleared when a setup transaction is accepted.

Revision 1.2

08/18/00

GL650USB 4 PORT USB HUB CONTROLLER

After filling the data-to-transmit into FF0, the micro-controller should setup this register to

enable endpoint 0 data transmit. If EP0OE = 0, endpoint 0 will respond to a valid IN transaction

with a NAK. EP0OE will be automatically cleared after a successful transmission, or when

endpoint 0 has incidentally accepted another SETUP or OUT transaction.

TXCTL1

( offset 04, default = 00h )

R/W

EP1STL

R/W

R/O

R/W

EP1OE

EP1SEQ

EP1CNT3 EP1CNT2 EP1CNT1 EP1CNT0

Endpoint 1 transmit setting –

EP1CNT3~0

EP1OE

: number of data bytes to transmit. EP1CNT3~1 are always ‘0’.

: enable data transmit

1 – ready to transmit data packet

0 – not ready to transmit data packet (default)

EP1SEQ

EP1STL

: data packet type

0 –DATA0

1 –DATA1

: set endpoint 1 stall

1 – EP1 will respond to USB host controller with STALL packet

0 – default

After preparing the data to transmit, the micro-controller should setup this register to enable

endpoint 1 data transmit. If EP1OE = 0, endpoint 1 will respond to a valid IN transaction with a

NAK. After a successful transmission, the device will automatically clear EP1OE.

FFDAT

( offset 05, default = 00h )

R/W

FFD7

FFD6

FFD5

FFD4

FFD3

FFD2

FFD1

FFD0

If FFSEL1 (in BUFCTL) = 1’b0, this is FF0 access-window; if FFSEL1 = 1’b1, this is FF1

access-window. Each FFDAT read/write will automatically increase the FIFO pointer, which is

a 3-bit circular counter, by 1. Writing FPRST with ‘1’ (in BUFCTL) will reset the pointer. Note

that to fill FF0, RXDIS (in RXCTL0) must be first cleared.

BUFCTL

( offset 06 )

W/O

FPRST

R/W

FFSEL1

Data buffer control –

FFSEL1

: FIFO 0/1 selector

1’b0 – select endpoint 0 data buffer

1’b1 – select endpoint 1 data buffer

: reset FIFO 0/1 pointer (write only)

FPRST

PORTSEL

( offset 07, default = 00h )

R/W

PORTSEL PORTSEL PORTSEL PORTSEL

PORTSEL

PORTSEL1

PORTSEL2

PORTSEL3

PORTSEL4

: PORT 1~7 under request

1’b1 – port 1 selected

1’b1 – port 2 selected

1’b1 – port 3 selected

1’b1 – port 4 selected

Revision 1.2

08/18/00

GL650USB 4 PORT USB HUB CONTROLLER

HUB_STAT_CHG

( offset 08, default = 00h )

-- --

R/O

LCPWR

OVCUR

C_LCPWR C_OVCUR

HUB status and status change

LCPWR : HUB local power status

1’b0 – local power good

1’b1 – local power lost

OVRCUR

: HUB over current indicator

1’b0 – No over-current condition currently exists

1’b1 – A hub over-current condition exists

: Local power status change

1’b0 – No change has occurred to local power status

1’b1 – local power status has changed

C_LCPWR

C_OVRCUR

: HUB over current indicator change

1’b0 – No change has occurred to the over-current indicator

1’b1 – Hub over-current indicator has changed

PORT_STATUS ( offset 09, default = 00h )

R/O R/O

R/O

PT_LOW_ PT_PWR

SPD

PT_RST PT_OVCU PT_SUS

PT_EN

PT_CON

Port status indicator:

PT_LOW_SPD : 1’b0 – full speed device connected, 1’b1 – low speed device

connected

PT_PWR

PT_RST

PT_OVCUR

: 1’b0 – port is in power off state, 1’b1 – port is not in power off state

: 1’b0 – Reset signaling not asserted, 1b’1 – Reset signaling asserted

: 1’b0 – No over-current condition occurred on this port

1’b1 – An over-current condition exists on this port

PT_SUS

PT_EN

: 1’b0 – port not suspended, 1’b1 – port suspended or resuming

: 1’b0 – port is disabled, 1’b1 – port is enabled

PT_CON

: 1’b0 – No device is present, 1’b1 – A device is present on this port

BUS_PORT_DATA

( offset 0A, default = 00h )

R/O

C_PT_RST C_PT_

OVCUR

Bus state and Port status change indicator:

R/O

C_PT_

SUS

R/O

C_PT_EN

R/O

C_PT_

CON

C_PT_RST

: VP state on the downstream port

: VM state on the downstream port

: 1’b0 – No change, 1’b1 – Reset complete

C_PT_OVCUR : 1’b0 – No change has occurred to over-current indicator

1’b1 – over-current indicator has changed

C_PT_SUS

C_PT_EN

C_PT_CON

: 1’b0 – No change, 1’b1: – Resume complete

: Set to one when a port is disabled because of a Port_error condition

: 1’b0 – No change has occurred to current connect status

1’b1 – Current connect status has changed

Revision 1.2

08/18/00

GL650USB 4 PORT USB HUB CONTROLLER

HOST_CMD

( offset 0B, default = 0Fh )

W/O W/O

W/O

HB_CMD3 HB_CMD2 HB_CMD1 HB_CMD0 PT_CMD3 PT_CMD2 PT_CMD1 PT_CMD0

Host command to the hub:

PT_CMD3~0

: 4’h0 –SetPortFeature(PORT_SUSPEND)

: 4’h1 –SetPortFeature(PORT_RESET)

: 4’h2 –SetPortFeature(PORT_POWER)

: 4’h3 –ClearPortFeature(PORT_ENABLE)

: 4’h4 –ClearPortFeature(PORT_SUSPEND)

: 4’h5 –ClearPortFeature(PORT_POWER)

: 4’h6 –ClearPortFeature(C_PORT_RESET)

: 4’h7 –ClearPortFeature(C_PORT_OVER_CURRENT)

: 4’h8 –ClearPortFeature(C_PORT_SUSPEND)

: 4’h9 –ClearPortFeature(C_PORT_ENABLE)

: 4’hA –ClearPortFeature(C_PORT_CONNECTION)

: 1’b1 –SetHubFeature(C_HUB_LOCAL_POWER)

: 1’b1 –SetHubFeature(C_HUB_OVER_CURRENT)

: 1’b1 –ClearHubFeature(C_HUB_LOCAL_POWER)

: 1’b1 –ClearHubFeature(C_HUB_OVER_CURRENT)

HB_CMD3

HB_CMD2

HB_CMD1

HB_CMD0

ENP1_IND

( offset 0C, default = 00h )

R/O

PT4

PT3

PT2

PT1

HUB

Endpoint 1 interrupt change indicator

TRXFLAG

( offset 0D, default = 00h )

R/W1C

P4_TRX

R/W1C

P3_TRX

R/W1C

P2_TRX

R/W1C

P1_TRX

Upstream traffic flag:

P1_TRX

P2_TRX

P3_TRX

P4_TRX

: upstream traffic happens on downstream port 1

: upstream traffic happens on downstream port 2

: upstream traffic happens on downstream port 3

: upstream traffic happens on downstream port 4

LED_INIT

( offset 0E, default = 00h )

R/W1C

P4_ON

R/W1C

P3_ON

R/W1C

P2_ON

R/W1C

P1_ON

LED initial flag:

P1_ON

: if 1’b1, LED is always on, otherwise, judge according to TRXFLAG

P2_ON

P3_ON

P4_ON

: if 1’b1, LED is always on, otherwise, judge according to TRXFLAG

Revision 1.2

08/18/00

GL650USB 4 PORT USB HUB CONTROLLER

GPIOD

(offset 0F, default = 0Fh)

R/W R/W

R/W

GPIO3D/

LED4#

R/W

GPIO2D/

LED3#

R/W

GPIO1D/

LED2#

R/W

GPIO0D/

LED1#

General purpose I/O pin status –

If GPIOXOE = 1 (X: 0 ~ 3), GPIOX is driven with the level of internal GPIOXD latch, which

is the same as corresponding GPIOXD bit. If GPIOXOE = 0, GPIOXD reflects the level of

GPIOX pin, which may be different from internal GPIOXD latch. The value written to GPIOD

will be stored in an internal latch, no matter what direction the GPIOX pins are in. Bits 3 to 0

have been pre-assigned specific functions for LED indicators. (active low).

REV

( offset 10, default = current revision )

R/O

REV7

R/O

REV6

R/O

REV5

R/O

REV4

R/O

REV3

R/O

REV2

R/O

REV1

R/O

REV0

This register returns current silicon revision number of the HUB.

Current revision is 8’h11. (Revision 1.1)

DEVSTUS

R/W

( offset 11, default = 00h )

R/W

HCONFIG DEVADR6 DEVADR5 DEVADR4 DEVADR3 DEVADR2 DEVADR1 DEVADR0

USB device status registers. Procedure to set the device address:

1. After USB reset, the device responds to default address 0, and hub configuration = 0.

2. USB host controller issues SET_ADDRESS request to the device. (INTRB asserted)

3. Micro-controller recognizes the request, then set DEVADR register with appropriate value.

4. Micro-controller prepares the status stage of SET_ADDRESS request by programming

TXCTL0 register.

5. When the hub configuration value is not equal zero, HCONFIG is set to one.

USB reset will clear this register.

MAXIMUM RATINGS

Maximum ratings are the extreme limits to which the GL650USB/GL650USB-A can be exposed without

permanently damaging it. The GL650USB/GL650USB-A contain circuitry to protect the inputs against

damage from high static voltages; however, do not apply voltages higher than those shown in the table.

Keep V_INand V_OUTwithin the range GND £ (V_INor V_OUT) £ V_CC. Connect unused inputs to the appropriate

voltage level, either GND or V_DD

Symbol

Characteristic

Storage temperature

Operating temperature

Value

-55 to +150

0 to +70

Unit

T_STG

T_OP

V_CC

°C

Supply voltage

-0.5 to +7.0

DC input voltage

-0.5 to +V_DD+ 0.5

Maximum current per pin excluding V_DDand V_SS

Maximum current out of GND

Maximum current out of V_CC

Static discharge voltage

I_MGND

I_MVCC

V_ESD

100

>4000

Revision 1.2

08/18/00

GL650USB 4 PORT USB HUB CONTROLLER

ELECTRICAL CHARACTERISTICS

Symbol

Parameter

Tese Conditions

Min.

Typ.

Max.

Unit

Supply

V_DD

Digital Power Supply

4.5

5.0

5.5

V_DDAAnalog Power Supply

I_DDDigital Supply Current

I_DDAAnalog Supply Current

USB Bus: DP and DM

V_CP

V_DI

V_DO

Regulated Voltage Output

Static Input Voltage

Static Output Voltage

3.0

3.3

3.6

V_CP

Digital I/O Pins

Input Logic Low Voltage

2.0

0.8

0.1xV_DD

Input Logic High Voltage

Output Logic Low Voltage

Output Logic High Voltage

V_OL

V_OH

I_O=-4.0mA

I_O=+4.0mA

0.9xV_DD

Revision 1.2

08/18/00

GL650USB 4 PORT USB HUB CONTROLLER

PACKAGE DIAGRAM

48-LQFP

SYVBOIS

MIN

MAX

1.6

0.05

1.35

0.09

0.15

1.45

0.16

9.00BSC

7.00BSC

9.00BSC

7.00BSC

0.5BSC

0.17

0.45

0.27

0.75

1 REF

D 1

L 1

Revision 1.2

08/18/00

9. Application Circuit (1)

B_VCC

0.1U

Y1 12 MHz C3

30P

DP0

DGND

XTAL1

XTAL2

XTAL1

DM0

AGND

LED1

LED2

VOUT1

VOUT2

VOUT3

VOUT4

LED

TEST

DP1

DM1

LED

DP1

DM1

LED3

LED4

PWRENB4#

LED

PWRENB4#

DP4

DM4

OVRCUR4#

LED4

LED

DP4

DM4

AVCC

OVRCUR4#

LED4

B_VCC

RESET

R7 10K

0.1U

0.1U 4.7U

GL650USB

VCP

SUSPEND

Title

CIRCUIT FOR GENESYS 4-PORT USB HUB

Size

Document Number

USBHUB.DSN

Rev

1.2

Date:

Thursday, August 17, 2000

Sheet

9. Application Circuit (2)

VCP

B_VCC

10U

S_VCC

1.5K

L1 FB

DM0

DP0

R10 22

R11 22

R12

B_VCC

47P

L2 FB

4.7K

USB-B

47P

VCC

TP0610T

2N7002

MIC 29302

SELF

R13

FDN340P

R14

470

R15

VOUT1

4.7K

R16

2N7002

DM1

DP1

R17 22

R18 22

C10

C11

VCC

REN

S_VCC

REN

120U

0.1U

VCC

B_VCC

USB-A

2N7002

R20

R21

C12

C13

47U

R19

R22

825K,%1

C14

0.1U

15K

0.1U

POWER JACK

267K,%1

6V adapter is

recommended.

VOUT2

DM2

DP2

R23 22

R24 22

C15

C16

120U

0.1U

USB-A

R25

15K

R26

15K

VCC

B_VCC

C17

PWRENB1#

VOUT1

VOUT2

0.1U

ENA#

OUTA#

R27

10K

R28

10K

FLG1#

FLGA#

FLGB#

FLG1#

FLG2#

VOUT3

FLG2#

OVRCUR1#

C19

OVRCUR2#

GND

DM3

DP3

R31 22

R32 22

C20

C18

C21

PWRENB2#

R29 10K

R30 10K

ENB#

OUTB#

0.1U

120U

0.1U

MIC2526-8

USB-A

R33

15K

R34

15K

VCC

B_VCC

C22

PWRENB3#

FLG3#

VOUT3

VOUT4

0.1U

ENA#

OUTA#

VOUT4

R35

10K

R36

10K

DM4

DP4

R37 22

R38 22

FLGA#

FLGB#

C23

C24

FLG3#

FLG4#

OVRCUR3#

OVRCUR4#

GND

120U

0.1U

C25

C26

USB-A

PWRENB4#

R39 10K

R40 10K

ENB#

OUTB#

L10

0.1U

R41

15K

R42

15K

MIC2526-8

Title

Size

CIRCUIT FOR GENESYS 4-PORT USB HUB

Document Number

Rev

1.2

Custom USBHUB.DSN

Date: Thursday, August 17, 2000

Sheet

9. Application Circuit (3)

Rev.

1.0

Date

'00/04/05

Description

1. First Product Release

1.1

1. Seperate 4-port and 7-port hubs into different schematic files.

2. Omit the ganged mode pull-up resistor on 'SUSPND' pin.

'00/05/18

3. Add

4. Connect pin

only when upstream port is plugged!

1M pull-low resistor is also added to disable this pin when

10K pull-up resistor to 'RESET' pin.

of U2 to B_VCC, then regulator will be enabled

the upstream port is not plugged.

5. 'SELF' is directly connected to drain of Q4 to omit the external

debounce RC circuit for this pin.

6. Q1 is replaced by

a more popular and cheaper one -- FDN340P.

7. Some resistor values are increased to save the operating current.

1.2

1. Change the pull-up voltage source for each LED from B_VCC to power

switch output.

'00/08/17

2. Remove the 47U output capacitor of MIC29302 to suppress inrush current.

3. Add R1, R2 and C6 for EMI suppressing.

4. Change C10, C15, C18 and C23 from 100U to 120U for better behavior in

droop test.

5. Add

a 2-transistor circuit for regulator ENABLE pin. That will save

several tens of mA operating current than direct connecting B_VCC

to ENABLE pin.

6. Remove

redudant transistor in SELF-BUS power switching circuit.

Title

CIRCUIT FOR GENESYS 4-PORT USB HUB

Size

Document Number

USBHUB.DSN

Rev

1.2

Date:

Thursday, August 17, 2000

Sheet

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GL650USB产品参数

型号:	GL650USB
生命周期：	Contact Manufacturer
IHS 制造商：	GENESYS LOGIC INC
包装说明：	QFP, QFP48(UNSPEC)
Reach Compliance Code：	unknown
风险等级：	5.79
Is Samacsys：	N
端子数量：	48
最高工作温度：	70 °C
最低工作温度：
封装主体材料：	PLASTIC/EPOXY
封装代码：	QFP
封装等效代码：	QFP48(UNSPEC)
封装形式：	FLATPACK
电源：	5 V
认证状态：	Not Qualified
子类别：	Network Interfaces
标称供电电压：	5 V
表面贴装：	YES
温度等级：	COMMERCIAL
端子形式：	GULL WING
端子位置：	QUAD
Base Number Matches：	1

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