Datasheet > DS31256_V01

DS31256_V01

更新时间： 2024-02-02 15:45:46

品牌	Logo	应用领域
美信 - MAXIM		/
页数	文件大小	规格书
183页	1218K
描述
256-Channel, High-Throughput HDLC Controller

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数据手册

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DS31256_V01 数据手册

DEMO KIT AVAILABLE

DS31256

256-Channel, High-Throughput

HDLC Controller

www.maxim-ic.com

GENERAL DESCRIPTION

FEATURES

The DS31256 Envoy is a 256-channel HDLC ꢀ 256 Independent, Bidirectional HDLC

controller that can handle up to 60 T1 or 64 E1

Channels

data streams or two T3 data streams. Each of the ꢀ Up to 132Mbps Full-Duplex Throughput

16 physical ports can handle one, two, or four ꢀ Supports Up to 60 T1 or 64 E1 Data Streams

T1 or E1 data streams. The DS31256 is ꢀ 16 Physical Ports (16 Tx and 16 Rx) That

composed of the following blocks: Layer 1,

HDLC processing, FIFO, DMA, PCI bus, and

local bus.

Can Be Independently Configured for

Channelized or Unchannelized Operation

ꢀ Three Fast (52Mbps) Ports; Other Ports

Capable of Speeds Up to 10Mbps

(Unchannelized)

There are 16 HDLC engines (one for each port)

that are each capable of operating at speeds up ꢀ Channelized Ports Can Each Handle One,

to 8.192Mbps in channelized mode and up to

10Mbps in unchannelized mode. The DS31256 ꢀ Per-Channel DS0 Loopbacks in Both

Envoy also has three fast HDLC engines that Directions

Two, or Four T1 or E1 Lines

only reside on Ports 0, 1, and 2. They are ꢀ Over-Subscription at the Port Level

capable of operating at speeds up to 52Mbps.

ꢀ Transparent Mode Supported

ꢀ On-Board Bit Error-Rate Tester (BERT)

with Automatic Error Insertion Capability

ꢀ BERT Function Can Be Assigned to Any

HDLC Channel or Any Port

APPLICATIONS

Channelized and Clear-Channel

(Unchannelized) T1/E1 and T3/E3

Routers with Multilink PPP Support

High-Density Frame-Relay Access

xDSL Access Multiplexers (DSLAMs)

Triple HSSI

ꢀ Large 16kB FIFO in Both Receive and

Transmit Directions

ꢀ Efficient Scatter/Gather DMA Maximizes

Memory Efficiency

ꢀ Receive Data Packets are Time-Stamped

ꢀ Transmit Packet Priority Setting

ꢀ V.54 Loopback Code Detector

ꢀ Local Bus Allows for PCI Bridging or Local

Access

High-Density V.35

SONET/SDH EOC/ECC Termination

ORDERING INFORMATION

PART

DS31256

DS31256+

TEMP RANGE PIN-PACKAGE

ꢀ Intel or Motorola Bus Signals Supported

ꢀ Backward Compatibility with DS3134

ꢀ 33MHz 32-Bit PCI (V2.1) Interface

ꢀ 3.3V Low-Power CMOS with 5V Tolerant

I/O

0°C to +70°C

256 PBGA

0°C to +70°C

256 PBGA

+Denotes lead-free/RoHS-compliant package.

ꢀ JTAG Support IEEE 1149.1

ꢀ 256-Pin Plastic BGA (27mm x 27mm)

Features continued on page 6.

Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device

may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata.

1 of 183

REV: 012506

12 3 4 5 6 7...183

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与DS31256_V01相关器件

型号	品牌	获取价格	描述	数据表
DS31256+	MAXIM	获取价格	256-Channel, High-Throughput HDLC Controller
DS31256+T	MAXIM	获取价格	Telecom Circuit,
DS31256B	ROCHESTER	获取价格	SPECIALTY TELECOM CIRCUIT, PBGA256, 27 X 27 MM, 1.27 MM PITCH, PLASTIC, BGA-256
DS31256B	MAXIM	获取价格	Telecom Circuit, 1-Func, CMOS, PBGA256, 27 X 27 MM, 1.27 MM PITCH, PLASTIC, BGA-256
DS31256DK	ETC	获取价格	256-Channel.High-Throughput HDLC Controller Demo Kit
DS312BNC	ETC	获取价格	Industrial Control IC
DS-312BNC	TE	获取价格	Four-Way Power Dividers 10 - 500 MHz
DS-312-BNC	MACOM	获取价格	(non-RoHS) 4-Way
DS312N	ETC	获取价格	Industrial Control IC
DS-312N	TE	获取价格	Four-Way Power Dividers 10 - 500 MHz

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