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參數資料
| 型號： | MT89L85 |
| 廠商： | Mitel Networks Corporation |
| 英文描述： | Enhanced Digital Switch(加強型數字開關) |
| 中文描述： | 增強型數字交換機（加強型數字開關） |
| 文件頁數： | 1/20頁 |
| 文件大?。?/td> | 134K |
| 代理商： | MT89L85 |
1
Features
3.3 volt supply
5V tolerant inputs and TTL compatible outputs
256 x 256 channel non-blocking switch
Programmable frame integrity for wideband
channels
Automatic identification of ST-BUS/GCI
interface backplanes
Per channel tristate control
Patented message mode
Non-multiplexed microprocessor interface
Available in PLCC-44 and SSOP-48 packages
Pin compatible with MT8985 device
Low power consumption
Applications
Medium size digital switch matrices
Hyperchannel switching (e.g., ISDN H0)
ST-BUS/MVIP
interface functions
Serial bus control and monitoring
Centralized voice processing systems
Data multiplexer
Description
The MT89L85 Enhanced Digital Switch device is an
upgraded 3-volt version of the MT8985 Digital
Switch. It is pin compatible with the MT8985 and
retains all of the MT8985's functionality. The
enhanced digital swtich is designed for switching
PCM-encoded voice or data, under microprocessor
control, in digital exchanges, PBXs and any ST-BUS/
MVIP
environment.
It
connections for up to 256 64kb/s channels. Each of
the eight serial inputs and outputs consist of 32 64
kbit/s channels multiplexed to form a 2048 kbit/s
stream.
As
the
main
applications, the device provides per-channel
selection between variable or constant throughput
delays. The constant throughput delay feature allows
grouped channels such as ISDN H0 to be switched
through the device maintaining its sequence
integrity. The MT89L85 is ideal for medium sized
mixed voice/data switch and voice processing
applications.
provides
simultaneous
function
in
switching
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
ODE
STi0
STi1
STi2
STi3
STi4
STi5
STi6
STi7
DS
DS5194
ISSUE 2
September 1999
MT89L85
Enhanced Digital Switch
Advance Information
CMOS ST-BUS
FAMILY
Ordering Information
MT89L85AP
44 Pin PLCC
MT89L85AN
48 Pin SSOP
-40
°
C to +85
°
C
RESET
** for 48-pin SSOP only
V
DD
V
SS
**
相關PDF資料 |
PDF描述 |
|---|---|
| MT89L85 | CMOS ST-BUS⑩ FAMILY Enhanced Digital Switch |
| MT89L85AN | CMOS ST-BUS⑩ FAMILY Enhanced Digital Switch |
| MT89L85AP | CMOS ST-BUS⑩ FAMILY Enhanced Digital Switch |
| MT89L86 | Multiple Rate Digital Switch(多速率數字開關) |
| MT89L86 | CMOS ST-BUS⑩ FAMILY Multiple Rate Digital Switch |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MT89L85AN | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:CMOS ST-BUS⑩ FAMILY Enhanced Digital Switch |
| MT89L85AN1 | 制造商:Microsemi Corporation 功能描述:SWIT FABRIC 256 X 256 16.384MBPS 3.3V 48SSOP /BAKE/DRYPACK - Rail/Tube 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 |
| MT89L85ANR | 制造商:Microsemi Corporation 功能描述: |
| MT89L85ANR1 | 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 |
| MT89L85AP | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:CMOS ST-BUS⑩ FAMILY Enhanced Digital Switch |
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