MT8982AC Datasheet

IC型號(hào)：
MT8982AC
PDF描述：
ISO-CMOS ST-BUS⑩ FAMILY Small Digital Switch (MiniDX)
文件大?。?/label>
213.12KB
PDF頁數(shù)：
14頁
芯片廠家：
MITEL

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ISO-CMOS ST-BUS鈩?FAMILY

MT8982

Small Digital Switch (MiniDX)

Features

鈥?/div>

ST-BUS/GCI compatible switch matrix

64 channel non-blocking time switch

2 x 32 channel serial inputs and outputs

Per-channel tristate control

4-pin serial microprocessor interface

Patented message mode

Low power consumption (10 mW)

Single 5 volt supply

ISSUE 6

May 1995

Ordering Information

MT8982AC

16 Pin Ceramic DIP

MT8982AE

16 Pin Plastic DIP

MT8982AS

16 Pin SOIC

MT8982AN

20 Pin SSOP

-40 to +85擄C

Description

The MT8982 Small Digital Switch (MiniDX) is a non-

blocking CMOS time switch with a capacity of up to

64 - 8 bit Time Division Multiplexed (TDM) encoded

voice or data channels. It is a size-optimized version

of MITEL's successful MT8980D Digital Switches,

providing switching capability in cost sensitive

applications such as telephone sets and digital key

systems. The TDM interface to the device is via two

pairs of 2048 kbit/s serial streams with 32 64 kbit/s

channels per stream (ST-BUS). A serial microport

provides access to the device for programming the

required connections.

The serial microport is

compatible with most common microcontrollers. The

unique message mode capability allows the MT8982

to act as a controller for other members of MITEL's

ST-BUS family of components.

Applications

鈥?/div>

Cost sensitive digital switching applications

Digital key telephone systems

GCI/ST-BUS conversion

ST-BUS device control interface

ISDN telephone set support circuit

Interprocessor communication

STi0

STi1

Serial

Parallel

Converter

64 x 8

Data Memory

Output

Mux

Parallel

Serial

Converter

STo0

STo1

F0i

C4i

F0o

Address

Counters

Address

Mux

Data

Mux

RxD/CSTi0

TxD/NC

SCLK/CSTi1

CS/CMS

MPS

Address

Mux

ODE

Serial

Microport

64 x 9

Connect Memory

3-State

Control

Figure 1 - Functional Block Diagram

2-31

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