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MT89L80

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 inte...

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MT89L80: 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 thr...

MT89L80 Data Sheet

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Part Number:
MT89L80
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



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


Application

• Key telephone systems
• PBX systems
• Small and medium voice switching systems


Pinout

Connection Diagram


Specifications

  Parameter
Symbol
Min
Max
Units
1 Supply Voltage
-0.3
5.0
V
2 Voltage on any I/O pin (except supply pins)
VO
VSS-0.3
VDD+0.3
V
3 Current at Digital Outputs
IO
20
mA
4 Storage Temperature
TS
-55
+125
°C
5 Package Power Dissipation
PD
1
W

* Exceeding these values may cause permanent damage. Functional operation under these conditions is not implied.


Description

This VLSI CMOS device MT89L80 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 of MT89L80 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.




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