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MTD658E Datasheet PDF - Myson Century Inc

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MFG CO.
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MTD658E Datasheet PDF : MTD658E pdf     
MTD658E image

GENERAL DESCRIPTION
The MTD658E is a highly integrated, 10M/ 100M dual speed hub with build_in 2 port switch and 64k8 embedded ASRAM. Support 8 RMII ports for 10M/100M operation, and really meet 100M_hub class_2 spec when connect with external QPHYceivers.
The MTD658E provides two Inter-repeater stacking bus for 10M and 100M expansion each, easily stack to 4 units without any external arbitration logic. If using external arbitration logic and proper bus driver, can stack to 6 units and up.

FEATURES
• IEEE802.3 Clause 9 and IEEE802.3u Cluse 27 compliant.
• Provide 8 RMII (8 port mode), or 4 RMII + 1 MII (5 port mode).
• Provide 2 inter_repeater stacking bus for 10M and 100M port expansion each.
• Support stacking to 4 units without any external arbitration logic ( if use external arbitration logic, theoretically can stack to 6 units and up) .
• Build_in 2 port switch controller, support up to 2048 MAC addresses filtering database.
• Optional back_pressure flow control.
• Optional up_link_switch port function (in slave hub), support 100FX 2km distance extension in 100FD mode.
• Meet Class_2 repeater specification for 100M_hub.
• Pin compatible with MTD658/655 application, no need any external memory buffers.
• 128 pin QFP package, 3.3V operation voltage.

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