Axcelerator Family FPGAs
2- 52
v2.8
Timing Characteristics
Table 2-64 AX125 Predicted Routing Delays
Worst-Case Commercial Conditions VCCA = 1.425V, TJ = 70°C
'–2' Speed
'–1' Speed
'Std' Speed
Parameter
Description
Typical
Units
Predicted Routing Delays
tDC
DirectConnect Routing Delay, FO1
0.11
0.12
0.15
ns
tFC
FastConnect Routing Delay, FO1
0.35
0.39
0.46
ns
tRD1
Routing delay for FO1
0.35
0.40
0.47
ns
tRD2
Routing delay for FO2
0.38
0.43
0.51
ns
tRD3
Routing delay for FO3
0.43
0.48
0.57
ns
tRD4
Routing delay for FO4
0.48
0.55
0.64
ns
tRD5
Routing delay for FO5
0.55
0.62
0.73
ns
tRD6
Routing delay for FO6
0.64
0.72
0.85
ns
tRD7
Routing delay for FO7
0.79
0.89
1.05
ns
tRD8
Routing delay for FO8
0.88
0.99
1.17
ns
tRD16
Routing delay for FO16
1.49
1.69
1.99
ns
tRD32
Routing delay for FO32
2.32
2.63
3.10
ns
Table 2-65 AX250 Predicted Routing Delays
Worst-Case Commercial Conditions VCCA = 1.425V, TJ = 70°C
'–2' Speed
'–1' Speed
'Std' Speed
Parameter
Description
Typical
Units
Predicted Routing Delays
tDC
DirectConnect Routing Delay, FO1
0.11
0.12
0.15
ns
tFC
FastConnect Routing Delay, FO1
0.35
0.39
0.46
ns
tRD1
Routing delay for FO1
0.39
0.45
0.53
ns
tRD2
Routing delay for FO2
0.41
0.46
0.54
ns
tRD3
Routing delay for FO3
0.48
0.55
0.64
ns
tRD4
Routing delay for FO4
0.56
0.63
0.75
ns
tRD5
Routing delay for FO5
0.60
0.68
0.80
ns
tRD6
Routing delay for FO6
0.84
0.96
1.13
ns
tRD7
Routing delay for FO7
0.90
1.02
1.20
ns
tRD8
Routing delay for FO8
1.00
1.13
1.33
ns
tRD16
Routing delay for FO16
2.17
2.46
2.89
ns
tRD32
Routing delay for FO32
3.55
4.03
4.74
ns