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Part Number: MT90880B
Description: The MT9088x is a family of highly functional TDM to Packet bridging devices. It provides a bridge betw...
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MT90880B
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DataSheet
General Description
MT90880B General Description
The MT9088x is a family of highly functional TDM to Packet bridging devices. It provides a bridge between a WAN environment based on constant bit rate TDM streams and a packet domain based on Ethernet technology.
It is capable of assembling user-defined packets of TDM traffic from the WAN Access Interface and transmitting them from the Ethernet interfaces using a variety of protocols. If external processing is required (e.g., HDLC or modem termination) the traffic can be switched to a local interface using the internal TDM switch.
Packets received from the Ethernet interfaces are parsed to determine the egress destination, and are appropriately queued either to the WAN Access Interface or to the PCI interface. An integrated DMA controller is used to transfer packets to and from the PCI interface with a minimum of CPU intervention.
MT90880B Maximum Ratings
| Parameter | Symbol | Min. | Max. | Units |
| I/O Supply Voltage | VDD_IO | -0.5 | 5.0 | V |
| Core Supply Voltage | VDD_CORE | -0.5 | 2.5 | V |
| PLL Supply Voltage | VDD_PLL | -0.5 | 2.5 | V |
| Input Voltage | VI | -0.5 | VDD + 0.5 | V |
| Input Voltage (5 V tolerant inputs) | VI_5 V | -0.5 | 7.0 | V |
| Continuous current at digital inputs | IIN | - | ±10 | mA |
| Continuous current at digital outputs | IO | - | ±15 | mA |
| Package power dissipation | PD | - | 4 | W |
| Storage Temperature | TS | -55 | +125 |
Note: Exceeding these figures may cause permanent damage. Functional operation under these conditions is not guaranteed.
MT90880B Features
• WAN interface, consisting of 32 input and output streams at 2.048 or 8.192 Mbs
• Up to 1024 bi-directional 64 Kbs channels
• N * 64 Kbs trunking of channels across any stream and channel
• 1 K by 1 K non-blocking TDM switch
• Local TDM interface, with 32 streams at 2.048, 4.096 and 8.192 Mbs
• Flexible, multi-protocol packet encapsulation
• Dual 100 Mbs MII interfaces for redundancy or for load balancing
• Quality of service features, including weighted fair queuing, strict priority and queue size limit thresholds
• High performance 33 MHz / 66 MHz 32 bit PCI bus
• Integral Stratum 4E PLL for synchronisation to the TDM domain
• Power consumption of less than 0.75 W
• Up to 1024 bi-directional 64 Kbs channels
• N * 64 Kbs trunking of channels across any stream and channel
• 1 K by 1 K non-blocking TDM switch
• Local TDM interface, with 32 streams at 2.048, 4.096 and 8.192 Mbs
• Flexible, multi-protocol packet encapsulation
• Dual 100 Mbs MII interfaces for redundancy or for load balancing
• Quality of service features, including weighted fair queuing, strict priority and queue size limit thresholds
• High performance 33 MHz / 66 MHz 32 bit PCI bus
• Integral Stratum 4E PLL for synchronisation to the TDM domain
• Power consumption of less than 0.75 W
MT90880B Typical Application
• Packet backplane interconnection
• Circuit Emulation over packet domain
• Internet Off-load
• Remote Access Concentrators
• H.100/H.110 extension and expansion
• Circuit Emulation over packet domain
• Internet Off-load
• Remote Access Concentrators
• H.100/H.110 extension and expansion
MT90880B
PDF/DataSheet Download
- Datasheet: MT90880B
- File Size: 719728 KB
- Manufacturer: ZARLINK [Zarlink Semiconductor Inc]
- Click here to Download
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The MT90880 is a family of highly functional TDM to Packet bridging devices. It provides a bridge between a WAN environment based on constant bit rate TDM streams and a packet domain based on Ethernet technology. MT90880 is capable of assembling user-defin...
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