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XRT79L71IB Datasheet(PDF) 57 Page - Exar Corporation

Part # XRT79L71IB
Description  1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
PDF  441 Pages
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Manufacturer  EXAR [Exar Corporation]
Direct Link  http://www.exar.com
Logo EXAR - Exar Corporation

XRT79L71IB Datasheet(HTML) 57 Page - Exar Corporation

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PRELIMINARY
XRT79L71
1 - CHANNEL DS3/E3 ATM UNI/PPP COMBO IC
REV. P1.0.3
45
NOTE: The values for "t0" through "t11" can be found in Table 6.
FIGURE 9. SYNCHRONOUS MODE 4 - IDT 3051/52 INTERFACE TIMING (READ CYCLE)
TABLE 6: TIMING INFORMATION FOR THE MICROPROCESSOR INTERFACE, WHEN CONFIGURED TO OPERATE IN THE
IBM POWER PC403 MODE
Test Conditions: TA = 25°C, VCC = 3.3V±5% and 2.5V±5%, unless otherwise specified.
TIMING
DESCRIPTION
MIN.TYP.MAX.
t0
pCS_L low to Clock high
6
-
-
t1
pALE high to Clock high
1
-
-
t2
Clock high to pALE low
6
-
-
t3
Data setup time (WRITE cycle)
-
-
N/N
t4
Data hold time (WRITE cycle)
-
-
N/N
t5
Clock high to pRDY_L low
-
-
11
t6
Clock high to pWR_L high
6
-
-
t7
Clock high to Data valid (READ cycle)
-
-
N/N
t8
Clock high to pRDY_L high
-
-
11
t9
pRDY_L high to Data invalid
0
-
-
t7
t8
t9
pCLK
pCS_L
pA[14:0
]
pD[7:0]
pRdy_L
pWR_L
pRD_L
t5
pDBEN_L
pALE
Address
t10
t11
Data



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