Datasheet > DM9081

DM9081

更新时间： 2024-02-01 02:57:13

品牌	Logo	应用领域
联杰 - DAVICOM		控制器
页数	文件大小	规格书
22页	211K
描述
10BASE-T Hub Controller

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技术参数
数据手册

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DM9081 技术参数

生命周期：	Contact Manufacturer	包装说明：	QFP, QFP100,.75X.99
Reach Compliance Code：	unknown	风险等级：	5.8
JESD-30 代码：	R-PQFP-G100	端子数量：	100
封装主体材料：	PLASTIC/EPOXY	封装代码：	QFP
封装等效代码：	QFP100,.75X.99	封装形状：	RECTANGULAR
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
技术：	CMOS	端子形式：	GULL WING
端子节距：	0.635 mm	端子位置：	QUAD
Base Number Matches：	1

DM9081 数据手册

DM9081

10BASE-T Hub Controller

Pin Description

Pin No.

Miscellaneous

3, 4, 9,

30, 40,

50, 83, 93

14, 21,

35, 45,

88, 98

Pin Name

I/O

Description

DVDD

DGND

Digital Power

Digital Ground

RESET#

Active low to reset the internal logic of DM9081. It should be

synchronized to X2 if multiple DM9081s

are used

20, 19

TESTPIN0

TESTPIN1

These two pins are used to select LED display mode. Normal mode is

selected if both pins are connected to VDD. Minimum mode is selected

if both pins are connected to GND. Other settings are prohibited

These pins should be left open

A 20MHz oscillator or crystal should be attached to this pin

This pin is used in crystal connection only. It is left open when using an

oscillator

26, 29

67, 81

68, 82

AVDD

AGND

Analog Power

Analog Ground

LED Display Pins

LED_LATCH

This pin is used to latch the serial LED information from pins 6 to 13

In minimum mode, this pin sends out TP7 Link and Carrier Sense

status

This pin transmits AUI port status synchronous to TCK

In minimum mode, this pin sends out TP6 Link and Carrier Sense

status

This pin sends out global bit rate error status of the DM9081 Hub

In minimum mode, this pin sends out TP5 Link and Carrier Sense

status

(LI/RX7)

AUI_LED

(LI/RX6)

TP_BIT_LED

(LI/RX5)

TP_POL_LED

(LI/RX4)

TP_JAB_LED

(LI/RX3)

In minimum mode, this pin sends out TP4 Link and Carrier Sense

status

This pin transmits global jabber status of the DM9081 Hub

In minimum mode, this pin sends out TP3 Link and Carrier Sense

status

TRAFFIC_LED

(LI/RX2)

This pin sends out utilization of 10MHz bandwidth synchronous to TCK

In minimum mode, this pin sends out TP2 Link and Carrier Sense

status

This pin sends out the partition status synchronous to TCK for the eight

TP ports

TP_PAR_LED

(LI/RX1)

In minimum mode, this pin sends out TP1 Link and Carrier Sense

status

TP_LINK_LED

(LI/RX0)

This pin sends out the link and carrier sense status synchronous to

TCK for the eight TP ports

In minimum mode, this pin sends out TP0 Link and Carrier Sense

status

AUI1_CRS_LED

AUI2_CRS_LED

COL_LED

Active low for 52ms when AUI Port 1 detects carrier

Active low for 52ms when AUI Port 2 detects carrier

Active low for 26ms when collision is detected

A 10MHz clock synchronous to X2

TCK

Final

Version: DM9081-DS-F02

February 02, 2001

1 2 3 456 7 8...22

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