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DP83266 Datasheet(PDF) 140 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
Part # DP83266
Description  MACSITM Device (FDDI Media Access Controller and System Interface)
PDF  152 Pages
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Manufacturer  NSC [National Semiconductor (TI)]
Direct Link  http://www.national.com
Logo NSC - National Semiconductor (TI)

DP83266 Datasheet(HTML) 140 Page - National Semiconductor (TI)

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90 Electrical Characteristics (Continued)
94 AC ELECTRICAL CHARACTERISTICS
The AC Electrical characteristics are over the operating range unless otherwise specified
AC Characteristics for the Control Bus Interface
Symbol
Parameter Descriptions
Min
Max
Units
T1
CE Setup to LBC
15
ns
T2
LBC Period
80
ns
T3
LBC1 to ACK Low
45
ns
T4
CE Low to ACK Low
290
540
ns
T5
LBC1 Low to CBD(7-0) and CBP Valid
60
ns
T6
LBC1 to CBD(7-0) and CBP Active
5
ns
T7
CE Low to CBD(7-0) and CBP Active
225
475
ns
T8
CE Low to CBD(7-0) and CBP Valid
265
515
ns
T9
LBC Pulse Width High
35
45
ns
T10
LBC Pulse Width Low
35
45
ns
T11
CE High to ACK High
45
ns
T12
RW CBA(7-0) CBD(7-0) and CBP Set up to CE Low
5
ns
T13
CE High to RW CBA(7-0) CBD(7-0) and CBP Hold Time
0
ns
T14
RW CBA(7-0) CBD(7-0) and CBP to LBC1 Setup Time
20
ns
T15
ACK Low to CE High Lead Time
0
ns
T16
CE Minimum Pulse Width High
20
ns
T17
CE High to CBD(7-0) and CBP TRI-STATE
55
ns
T18
ACK High to CE Low
0
ns
T19
CBD(7-0) Valid to ACK Low Setup
20
ns
T20A
LBC1 to RW Hold Time
10
ns
T20B
LBC1 to CBA Hold Time
10
ns
T20C
LBC1 to CBD and CBP Hold Time
20
ns
T21
LBC1 to INT0 INT1 Low
55
ns
Asynchronous Definitions
T4 (min)
T1 a (3
T2) a T3
T4 (max)
T1 a (6
T2) a T3
T7 (min)
T1 a (2
T2) a T6
T7 (max)
T1 a (5
T2) a T6
T8 (min)
T1 a (2
T2) a T9 a T5
T8 (max)
T1 a (5
T2) a T9 a T5
Note
MinMax numbers are based on T2 e 80 ns and T9 e T10 e 40 ns
140



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