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9883 Datasheet(PDF) 42 Page - Intel Corporation

Part # 9883
Description  Advanced 10/100 Umnmanaged Repeater
PDF  56 Pages
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Manufacturer  INTEL [Intel Corporation]
Direct Link  http://www.intel.com
Logo INTEL - Intel Corporation

9883 Datasheet(HTML) 42 Page - Intel Corporation

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LXT9883/9863 — Advanced 10/100 Unmanaged Repeater
42
Datasheet
Document #: 249115
Revision #: 003
Rev. Date: 08/07/01
• A LXT98x3-based board configured for 3.3V backplane operation and LXT98x or LXT91x
based boards (5V only).
• A LXT98x3-based board configured for 3.3V backplane operation and a LXT98x3-based
board configured for 5V backplane operation.
Note:
Stacking boards designed for 3.3V backplane operation with boards designed for 5V backplane
operation causes network errors.
4.3.2.3.3
5V Operation
Boards designed for 5V backplane operation should only be stacked with other 5V boards:
• LXT98x or LXT91x-based designs.
• LXT98x3 designs configured for 5V backplane operation.
The configuration input must be connected to 5V for compatibility with LXT98x or LXT91x-based
designs. The 5V can be supplied from the stacking cable, or a 5V source must exist within the
board itself.
Caution:
Stacking boards designed for 5V backplane operation with boards designed for 3.3V backplane
operation causes network errors.
Figure 15. 100M Backplane Connection between LXT98x and LXT98x3
IR100DAT(4:0)
IR100DV
IR100CLK
IR100CFS
IR100DAT(4:0)
IR100DV
IR100CLK
IR100CFSBP
HUB #1
HUB #2
98x3
IR100DEN
IR100DEN
IR100SNGL
IR100COL
IR100CFS
IR100SNGL
IR100COL
(000)
(00)
98x3
98x
1. The LXT98x and LXT9883 devices can share the same Inter-Repeater Backplane so long as the proper backplane
buffers are used. Configuration is set to 5V.
2. For LXT98x, LXT91x: The buffer should be the 74ABT245.
For LXT9883: In the 5V tolerant backplane, the buffer can be either 74ABT245 or 74LVT245
3. Layout follows the same pattern for 10M operation.
98x
5V
5V



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