MT90826 Mitel Networks Corporation, MT90826 Datasheet

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MT90826

Manufacturer Part Number

MT90826

Description

Quad Digital Switch

Manufacturer

Mitel Networks Corporation

Datasheet

1.MT90826.pdf (30 pages)

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Download datasheet (133Kb)

Features

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Applications

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STi0/FEi0

STi1/FEi1

STi31/FEi31

4,096

at 8.192 or 16.384 Mb/s

Per-channel variable or constant throughput

delay

Accept ST-BUS streams of 2.048Mb/s,

4.096Mb/s, 8.192Mb/s, or 16.384 Mb/s

Split Rate mode allows mix of two bit rates and

rate conversions

Automatic frame offset delay measurement for

ST-BUS input and output streams

Per-stream frame delay offset programming

Per-channel high impedance output control

Bit Error Monitoring on selected ST-BUS input

and output channels.

Per-channel message mode

Connection memory block programming

IEEE-1149.1 (JTAG) Test Port

3.3V local I/O with 5V tolerant inputs and TTL

compatible outputs

Medium and large switching platforms

CTI application

Voice/data multiplexer

Digital cross connects

WAN access system

Wireless base stations

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4,096 channel non-blocking switching

V

DD

PLLV

Converter

V

DD

Parallel

SS

Serial

to

PLLV

SS

CLK

Timing

Unit

Figure 1 - Functional Block Diagram

F0i

IC2

TMS

IC3

Multiple Buffer

Data Memory

TDI TDO

DT1 AT1

Registers

Internal

Test Port

TCK

DS

DS5197

Description

The MT90826 Quad Digital Switch has a non-

blocking switch capacity of 4,096 x 4,096 channels at

a serial bit rate of 8.192Mb/s or 16.384 Mb/s, 2,048 x

2,048 channels at 4.096Mb/s and 1024 x 1024

channels at 2.048Mb/s. The device has many

features that are programmable on a per stream or

per channel basis, including message mode, input

offset delay and high impedance output control.

The per stream input and output delay control is

particularly useful for managing large multi-chip

switches with a distributed backplane.

Operating in Split Rate mode allows for switching

between two groups of bit rate streams.

TRST

Microprocessor Interface

CS

MT90826AL

MT90826AG

IC1

R/W

Connection

Output

MUX

RESET

Memory

A13-A0 DTA

Ordering Information

-40 to +85 C

160 Pin MQFP

160 Pin PBGA

Advanced Information

Quad Digital Switch

ISSUE 2

D15-D0

Converter

Parallel

ODE

Serial

to

MT90826

June 1999

STo0

STo1

STo31

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1

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