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參數資料
| 型號： | MT89L80 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | Digital Switch(數字開關) |
| 中文描述： | 數字開關（數字開關） |
| 文件頁數： | 1/15頁 |
| 文件大?。?/td> | 75K |
| 代理商： | MT89L80 |
2-3
Features
3.3 volt supply
5V tolerant inputs and TTL compatible outputs.
256 x 256 channel non-blocking switch
Accepts serial streams at 2.048Mb/s
Per-channel three-state control
Patented per channel message mode
Non-multiplexed microprocessor interface
Mitel ST-BUS compatible
Low power consumption: typical 15mW
Pin compatible with the MT8980DP
Applications
Key telephone systems
PBX systems
Small and medium voice switching systems
Description
This VLSI 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 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 MT89L80 provides
microprocessor read and write access to individual
ST-BUS channels.
Figure 1 - Functional Block Diagram
STo0
STo1
STo2
STo3
STo4
STo5
STo6
STo7
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
CSTo
C4i
F0i
V
DD
V
SS
**
ODE
STi0
STi1
STi2
STi3
STi4
STi5
STi6
STi7
DS
RESET
** for 48-pin SSOP only
DS5196
ISSUE 2
September 1999
MT89L80
Digital Switch
Advance Information
CMOS ST-BUS
FAMILY
Ordering Information
MT89L80AP
MT89L80AN
44 Pin PLCC
48 Pin SSOP
-40
°
C to +85
°
C
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| MT89L85 | Enhanced Digital Switch(加強型數字開關) |
| MT89L85 | CMOS ST-BUS⑩ FAMILY Enhanced Digital Switch |
| MT89L85AN | CMOS ST-BUS⑩ FAMILY Enhanced Digital Switch |
| MT89L85AP | CMOS ST-BUS⑩ FAMILY Enhanced Digital Switch |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MT89L80AN | 制造商:Microsemi Corporation 功能描述: |
| MT89L80AN1 | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 256 X 256 16.384MBPS 3.3V 48SSOP /BAKE/DRYPACK - Rail/Tube |
| MT89L80ANR | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:CMOS ST-BUSTM Family |
| MT89L80ANR1 | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 256 X 256 16.384MBPS 3.3V 48SSOP - Tape and Reel 制造商:MICROSEMI CONSUMER MEDICAL PRODUCT GROUP 功能描述:IC TDM/TSI SWITCH 256X256 48SSOP 制造商:Microsemi Corporation 功能描述:IC TDM/TSI SWITCH 256X256 48SSOP |
| MT89L80AP | 制造商:Microsemi Corporation 功能描述: |
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