MT8981DE中文资料ISO-CMOS ST-BUS FAMILY Digital Switch数据手册Microchip规格书

描述 Description

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 Office. It provides simultaneous connections for up to 128 64 kbit/s channels. Eachof the four serial inputs and outputs consist of 32 64 kbit/s channels multiplexed to form a 2048 kbit/s ST-BUS stream. In addition, the MT8981 provides microprocessor read and write access to individual ST-BUS channels.

特性 Features

• Zarlink ST-BUS compatible
• 4-line x 32-channel inputs
• 4-line x 32-channel outputs
• 128 ports non-blocking switch
• Single power supply (+5 V)
• Low power consumption: 30 mW Typ.
• Microprocessor-control interface
• Three-state serial outputs

简介

MT8981DE属于集成电路（IC）的电信。由制造生产的MT8981DE电信电信接口集成电路 (IC) 为通信网络接口提供特定功能和控制，例如以太网切换、线路驱动器、ISDN、放大器、通道扩展器、数字锁相环、DTMF、音频发生器和解码器、回声消除、检测器和发生器、DDA、电话线路监控器和主叫号码标识。