
Virtex-5 FPGA Data Sheet: DC and Switching Characteristics
DS202 (v5.3) May 5, 2010
Product Specification
84
Table 99: Package Skew
Symbol
Description
Device
Package
Value
Units
TPKGSKEW
Package Skew(1)
XC5VLX20T
FF323
131
ps
XC5VLX30
FF324
80
ps
FF676
142
ps
XC5VLX30T
FF323
127
ps
FF665
93
ps
XC5VLX50
FF324
80
ps
FF676
142
ps
FF1153
175
ps
XC5VLX50T
FF665
93
ps
FF1136
162
ps
XC5VLX85
FF676
142
ps
FF1153
174
ps
XC5VLX85T
FF1136
164
ps
XC5VLX110
FF676
142
ps
FF1153
173
ps
FF1760
190
ps
XC5VLX110T
FF1136
163
ps
FF1738
171
ps
XC5VLX155
FF1153
161
ps
FF1760
181
ps
XC5VLX155T
FF1136
147
ps
FF1738
174
ps
XC5VLX220
FF1760
178
ps
XC5VLX220T
FF1738
156
ps
XC5VLX330
FF1760
177
ps
XC5VLX330T
FF1738
155
ps
XC5VSX35T
FF665
103
ps
XC5VSX50T
FF665
103
ps
FF1136
157
ps
XC5VSX95T
FF1136
176
ps
XC5VSX240T
FF1738
161
ps
XC5VTX150T
FF1156
ps
XC5VTX150T
FF1759
157
ps
XC5VTX240T
FF1759
157
ps
XC5VFX30T
FF665
102
ps
XC5VFX70T
FF665
102
ps
FF1136
153
ps
XC5VFX100T
FF1136
144
ps
FF1738
172
ps
XC5VFX130T
FF1738
181
ps
XC5VFX200T
FF1738
164
ps
Notes:
1.
These values represent the worst-case skew between any two SelectIO resources in the package: shortest flight time to longest flight time
from Pad to Ball (7.0 ps per mm).
2.
Package trace length information is available for these device/package combinations. This information can be used to deskew the package.