XRT75L03DIV View Datasheet(PDF) - Exar Corporation
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XRT75L03DIV Datasheet PDF : 134 Pages
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XRT75L03D
THREE CHANNEL E3/DS3/STS-1 LINE INTERFACE UNIT WITH SONET DESYNCHRONIZER REV. 1.0.0
FIGURE 11. TIMING DIAGRAM FOR THE MICROPROCESSOR SERIAL INTERFACE
CS
SCLK
SDI
t
21
t
22
t
23
R/W
t
26
t
24
t
25
A0
A1
t
28
t
27
CS
SCLK
t
29
t
30
SDO Hi-Z
D0
D1
Hi-Z
SDI
t
32
D2
t
31
D7
TABLE 8: MICROPROCESSOR SERIAL INTERFACE TIMINGS ( TA = 250C, VDD=3.3V± 5% AND LOAD = 10PF)
SYMBOL
PARAMETER
MIN.
TYP.
MAX
UNITS
t21 CS Low to Rising Edge of SClk
5
ns
t22 SDI to Rising Edge of SClk
5
ns
t23 SDI to Rising Edge of SClk Hold Time
5
ns
t24 SClk "Low" Time
50
ns
t25 SClk "High" Time
50
ns
t26 SClk Period
100
ns
t27 Falling Edge of SClk to rising edge of CS
0
ns
t28 CS Inactive Time
50
ns
t29 Falling Edge of SClk to SDO Valid Time
20
ns
t30 Falling Edge of SClk to SDO Invalid Time
10
ns
t31 Rising edge of CS to High Z
t32 Rise/Fall time of SDO Output
25
ns
5
ns
40
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