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ATT3042 Просмотр технического описания (PDF) - Unspecified
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Компоненты Описание
производитель
ATT3042
Field-Programmable Gate Arrays
Unspecified
ATT3042 Datasheet PDF : 80 Pages
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Data Sheet
February 1997
ATT3000 Series Field-Programmable Gate Arrays
Performance
(continued)
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
0.5
–55 –40
0 30
70 85
TEMPERATURE (°C)
125
5-3119(F)
Figure 28. Change in Speed Performance
1.2
1.1
1.0
0.9
4.0
4.5
5.0
5.5
6.0
V
CC
5-3120(F)
Figure 29. Speed Performance of a CMOS Device
SWITCH MATRIX
R2
R3
REPOWERING
BUFFER
C1
C2
C3
C4
CLB
R1
TIMING: INCREMENTAL
IF R1 = R2 = R3 = R AND C1 = C2 = C3 = C,
THEN CUMULATIVE TIMING
R1(C1 + C2 + C3)
T1 = 3RC
= 3RC
+ R2(C2 + C3)
T2 = 3RC + 2RC
= 5RC
+ R3 + C3
T3 = 3RC + 2RC + RC
= 6RC
Figure 30. Interconnection Timing Example
6RC + BUFFER
5-3121(F)
Lucent Technologies Inc.
31
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