a10v20b Actel Corporation, a10v20b Datasheet - Page 11

• Manufacturer Part Number: a10v20b
• Description: Act? 1 Series Fpgas
• Manufacturer: Actel Corporation

Timing Derating
A best case timing derating factor of 0.45 is used to reflect
best case processing. Note that this factor is relative to the
Timing Derati ng Fact o r (T em p e r a tu re and Volt age)
Timing Derati ng Fact o r fo r De s ig n s a t T y pical T emper atur e (T
Voltage (5.0 V )
Temperature and Vol t age D er a t in g F actor s
( norma lized t o W o rs t - C ase C om m e r c ia l, T
Note:
(Commercial Minimum/Maximum Specification) x
(Commercial Maximum Specification) x
4.50
4.75
5.00
5.25
5.50
1.3
1.2
1.1
1.0
0.9
0.8
0.7
0.6
This derating factor applies to all routing and propagation delays.
0.75
0.71
0.69
0.68
0.67
4.50
–55
(normalized to Worst-Case Commercial, T
Junction Temperature and Voltage Derating Curves
0.79
0.75
0.72
0.69
0.69
–40
4.75
0.86
0.82
0.80
0.77
0.76
0
Min.
0.69
Voltage (V)
Industrial
“standard speed” timing parameters, and must be multiplied
by the appropriate voltage and temperature derating factors
for a given application.
5.00
J
0.92
0.87
0.85
0.82
0.81
= 4. 75 V, 70 C)
25
Max.
1.11
J
= 4.75 V, 70 C)
0.85
1.06
1.00
0.97
0.95
0.93
70
5.25
A C T
J
1.11
1.05
1.02
0.98
0.97
85
Min.
0.67
= 25 C) and
™
1 S eri es FPG As
Military
5.50
85°C
70°C
25°C
125°C
0°C
–40°C
–55°C
1.23
1.16
1.13
1.09
1.08
Max.
125
1.23
1-293