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參數資料
| 型號： | MT8981D |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | Digital Switch(數字開關（在微處理器控制下，轉換PCM編碼控制的話音或數據）) |
| 中文描述： | 數字開關（數字開關（在微處理器控制下，轉換的PCM編碼控制的話音或數據）） |
| 文件頁數： | 1/18頁 |
| 文件大小： | 120K |
| 代理商： | MT8981D |
2-17
Features
Mitel 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
Description
This VLSI ISO-CMOS device is designed for
switching PCM-encoded voice or data, under
microprocessor
control,
exchange, PBX or Central Office. It provides
simultaneous connections for up to 128 64 kbit/s
channels. Each of 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.
in
a
modern
digital
Figure 1 - Functional Block Diagram
STo0
STo1
STo2
STo3
Serial
to
Parallel
Converter
Data
Memory
Frame
Counter
Control Register
Control Interface
Output
MUX
Connection
Memory
Parallel
to
Serial
Converter
CS R/W A5/
A0
DTA D7/
D0
C4i
F0i
V
DD
V
SS
ODE
STi0
STi1
STi2
STi3
DS
ISSUE8
March 1997
MT8981D
Digital Switch
ISO-CMOS ST-BUS
FAMILY
Ordering Information
MT8981DE
MT8981DP
40 Pin Plastic DIP
44 PLCC
-40
°
C to +85
°
C
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| MT89L80 | CMOS ST-BUS⑩ FAMILY Digital Switch |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MT8981D-1 | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:ISO-CMOS ST-BUS⑩ FAMILY Digital Switch |
| MT8981DC | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:ISO-CMOS ST-BUS⑩ FAMILY Digital Switch |
| MT8981DE | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:Digital Switch |
| MT8981DE1 | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 128 X 128 5V 40PDIP - Rail/Tube 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC TDM/TSI SWITCH 128X128 40PDIP 制造商:Microsemi Corporation 功能描述:IC TDM/TSI SWITCH 128X128 40PDIP |
| MT8981DL | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:ISO-CMOS ST-BUS⑩ FAMILY Digital Switch |
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