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DP83924 Datasheet(PDF) 32 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # DP83924
Description  Quad 10 Mb/s Ethernet Physical Layer - 4TPHY?
PDF  42 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP83924 Datasheet(HTML) 32 Page - National Semiconductor (TI)

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7.0 AC and DC Electrical Specifications (Continued)
32
www.national.com
7.2 AC Switching Specifications
TA = 0
oC to 70oC, 5V
±5%
7.2.1 LED Interface Timing
7.2.2 Reset and Strapping Timing
Symbol
Parameter
Min
Max
Units
t0
LED Clock Duty Cycle
40
60
%
t1
LED Clock Cycle Time
900
1100
ns
t2
LED_Data Valid to LED_Clk
25
ns
t3
LED_Data Valid from LED_Clk
25
ns
Symbol
Parameter
Min
Max
Units
t4
Reset Pulse Width (X1 must be active during RE-
SETz).
30
us
twait
min wait time after reset before 4TPHY is
fully functional.
30
us
t5
X1 Duty Cycle
40
60
%
t2
t3
t1
LED_CLK
LED_DATA
X1
RESETz
t4
t5
t
wait



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