MT8980D-1 Datasheet

IC型號：
MT8980D-1
PDF描述：
ISO-CMOS ST-BUS⑩ FAMILY Digital Switch
文件大?。?/label>
124.03KB
PDF頁數(shù)：
18頁
芯片廠家：
MITEL

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ISO-CMOS ST-BUS鈩?FAMILY

MT8980D

Digital Switch

Features

鈥?/div>

Mitel ST-BUS compatible

8-line x 32-channel inputs

8-line x 32-channel outputs

MT8980DE

MT8980DP

ISSUE8

March 1997

Ordering Information

40 Pin Plastic DIP

44 Pin PLCC

-40擄C to +85擄C

Description

256 ports non-blocking switch

Single power supply (+5 V)

Low power consumption: 30 mW Typ.

Microprocessor-control interface

Three-state serial outputs

This VLSI ISO-CMOS device is designed for

switching PCM-encoded voice or

data, under

microprocessor control, in a modern digital

exchange, PBX or Central Of鏗乧e. It provides

simultaneous connections for up to 256 64 kbit/s

channels. Each of the eight serial inputs and outputs

consist of 32 64 kbit/s channels multiplexed to form a

2048 kbit/s ST-BUS stream. In addition, the MT8980

provides microprocessor read and write access to

individual ST-BUS channels.

C4i

F0i

ODE

STi0

STi1

STi2

STi3

STi4

STi5

STi6

STi7

Serial

Parallel

Converter

Data

Memory

Frame

Counter

Output

MUX

Parallel

Serial

Converter

STo0

STo1

STo2

STo3

STo4

STo5

STo6

STo7

Control Register

Connection

Memory

Control Interface

DS CS R/W A5/

DTA D7/

CSTo

Figure 1 - Functional Block Diagram

2-3

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