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DP83950B Datasheet(PDF) 69 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # DP83950B
Description  RIC??Repeater Interface Controller
PDF  80 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP83950B Datasheet(HTML) 69 Page - National Semiconductor (TI)

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90 AC and DC Specifications (Continued)
RECEIVE TIMING10BASE-T PORTS
Receive activity propagation start up and end delays for ports in 10BASE-T mode
TLF11096 – 24
Number
Symbol
Parameter
Min
Max
Units
T3t
rxaackol
RX Active to ACKO Low
240
ns
T4t
rxiackoh
RX Inactive to ACKO High
255
ns
T5t
rxaactna
RX Active to ACTNd Active
270
ns
T6t
rxiactni
RX Inactive to ACTNd Inactive
265
ns
Note
ACKI assumed high
TRANSMIT TIMINGAUI PORTS
Transmit activity propagation start up and end delays for ports in non 10BASE-T mode
TLF11096 – 25
Number
Symbol
Parameter
Min
Max
Units
T15a
actnatxa
ACTNd Active to TX Active
585
ns
Note
ACKI assumed high
Note
ACTNd and ACTNs are tied together
Note
In these diagrams the Inter-RIC and Management Busses are shown using active high signals active low signals may also be used See Section 55 Mode
Load Operation
69



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