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DP83858

更新时间： 2024-01-31 04:52:13

品牌	Logo	应用领域
美国国家半导体 - NSC		控制器
页数	文件大小	规格书
37页	292K
描述
100 Mb/s TX/T4 Repeater Interface Controller (100RIC8⑩)

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技术参数
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DP83858 技术参数

生命周期：	Obsolete	零件包装代码：	QFP
包装说明：	PLASTIC, QFP-132	针数：	132
Reach Compliance Code：	unknown	HTS代码：	8542.31.00.01
风险等级：	5.81	Is Samacsys：	N
地址总线宽度：		边界扫描：	NO
最大时钟频率：	25 MHz	最大数据传输速率：	12.5 MBps
外部数据总线宽度：		JESD-30 代码：	S-PQFP-G132
长度：	24.13 mm	低功率模式：	NO
串行 I/O 数：	8	端子数量：	132
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：	GQFP
封装形状：	SQUARE	封装形式：	FLATPACK, GUARD RING
座面最大高度：	4.45 mm	最大供电电压：	5.25 V
最小供电电压：	4.75 V	标称供电电压：	5 V
表面贴装：	YES	技术：	CMOS
温度等级：	COMMERCIAL	端子形式：	GULL WING
端子节距：	0.64 mm	端子位置：	QUAD
宽度：	24.13 mm	uPs/uCs/外围集成电路类型：	SERIAL IO/COMMUNICATION CONTROLLER, LAN
Base Number Matches：	1

DP83858 数据手册

June 1998

DP83858

100 Mb/s TX/T4 Repeater Interface Controller (100RIC8^™)

■ Supports Class II TX translational repeater and Class I

General Description

T4 repeater

The DP83858 100 Mb/s TX/T4 Repeater Interface Control-

ler, known as 100RIC8, is designed speciﬁcally to meet the

needs of today's high speed Ethernet networking systems.

The DP83858 is fully compatible with the IEEE 802.3

repeater's clause 27. This device is targeted at low port

count managed and unmanaged repeater applications.

■ Supports 8 network connections (ports)

■ Up to 31 repeater chips cascadable for larger hub appli-

cations--may use DP83858 in conjunction with DP83850

100RIC (12 ports per chip)

■ Separate jabber and partition state machines for each

port

The DP83858 supports up to eight 100 Mb/s links with its

network interface ports. The 100RIC8 can be conﬁgured to ■ Management interface to DP83856 allows all repeater

be used with either 100BASE-TX or 100BASE-T4 PHY

technologies. Larger repeaters may be constructed by

cascading DP83858s together using the built-in Inter

Repeater bus.

MIBs to be maintained

■ Large per-port management counters - reduces man-

agement CPU overhead

■ On-chip elasticity buffer for PHY signal re-timing to the

In conjunction with a DP83856 100 Mb/s Repeater Infor-

mation Base device, a DP83858 based repeater becomes

a managed entity that is compatible with IEEE 802.3u

(clause 30), collecting and providing an easy interface to

all the required network statistics.

DP83858 clock source

■ Serial register interface - reduces cost

■ Physical layer device control/status access available via

the serial register interface

■ Detects repeater identification errors

■ 132 pin PQFP package

Features

■ IEEE 802.3u repeater and management compatible

System Diagram

DP83858

DP83856

100 Mb/s

Repeater Interface Controller

(100RIC8)

Repeater Information Base

(100RIB)

Inter Repeater Bus

Management Bus

(IR_COL, IR_DV)

Statistics

SRAM

RX Enable [7..0]

MII

Management

CPU

DP83840A

100 PHY

DP83840A

100 PHY

DP83840A

100 PHY

DP83840A

100 PHY

Program

Memory

DP83223

100BASE-X

Transceiver

DP83223

100BASE-X

Transceiver

DP83223

100BASE-X

Transceiver

DP83223

100BASE-X

Transceiver

100Mb/s

Ethernet

Ports

Management

I/O Devices

Port 0

Port 1

Port 2

Port 7

Note: The above system diagram depicts the repeater configured in 100BASE-TX mode.

FAST^®is a registered trademark of Fairchild Semiconductor Corporation.

TRI-STATE^®is a registered trademark of National Semiconductor Corporation.

100RIC^™is a trademark of National Semiconductor Corporation.

http:\\www.national.com

1998 National Semiconductor Corporation

12 3 4 5 6 7...37

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与DP83858相关器件

型号	品牌	描述	获取价格	数据表
DP83858VF	NSC	100 Mb/s TX/T4 Repeater Interface Controller	获取价格
DP83861	NSC	Gig PHYTER 10/100/1000 Ethernet Physical Layer	获取价格
DP83861UCM	TI	DATACOM, ETHERNET TRANSCEIVER, PBGA215, EBGA-215	获取价格
DP83861VQM	NSC	Gig PHYTER 10/100/1000 Ethernet Physical Layer	获取价格
DP83861VQM-3	NSC	Gig PHYTER 10/100/1000 Ethernet Physical Layer	获取价格
DP83864	NSC	DP83864 Quad GigPHYTER 10/100/1000 Ethernet Physical Layer	获取价格

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