XC2V4000 Datasheet, PDF (62/311 Pages) Xilinx, Inc – Summary of Features

R
Virtex™-II Platform FPGAs: DC and Switching Characteristics
IOB Output Switching Characteristics Standard Adjustments
Output delays terminating at a pad are specified for LVTTL with 12 mA drive and fast slew rate. For other standards, adjust
the delays by the values shown.
Table 17: IOB Output Switching Characteristics Standard Adjustments
Speed Grade
Description
Symbol
Standard
–6
–5
–4 Units
Output Delay Adjustments
Standard-specific adjustments for output
delays terminating at pads (based on
standard capacitive load, Csl)
T_{OLVTTL_S2}
T_{OLVTTL_S4}
T_{OLVTTL_S6}
T_{OLVTTL_S8}
T_{OLVTTL_S12}
T_{OLVTTL_S16}
T_{OLVTTL_S24}
T_{OLVTTL_F2}
T_{OLVTTL_F4}
T_{OLVTTL_F6}
T_{OLVTTL_F8}
T_{OLVTTL_F12}
T_{OLVTTL_F16}
T_{OLVTTL_F24}
T_{OLVDS_25}
T_{OLVDS_33}
T_{OLVDSEXT_25}
T_{OLVDSEXT_33}
T_{OLDT_25}
T_{OBLVDS_25}
T_{OULVDS_25}
T_{OLVPECL_33}
T_{OPCI33_3}
T_{OPCI66_3}
T_OPCIX
T_OGTL
T_OGTLP
T_{OHSTL_I}
T_{OHSTL_II}
T_{OHSTL_III}
T_{OHSTL_IV}
T_{OHSTL_I_18}
T_{OHSTL_II_18}
T_{OHSTL_III_18}
T_{OHSTL_IV_18}
LVTTL, Slow, 2 mA
4 mA
6 mA
8 mA
12 mA
16 mA
24 mA
LVTTL, Fast, 2 mA
4 mA
6 mA
8 mA
12 mA
16 mA
24 mA
LVDS
LVDS
LVDS
LVDS
LDT
BLVDS
ULVDS
LVPECL
PCI, 33 MHz, 3.3 V
PCI, 66 MHz, 3.3 V
PCI–X, 133 MHz, 3.3 V
GTL
GTLP
HSTL I
HSTL II
HSTL III
HSTL IV
HSTL I_18
HSTL II_18
HSTL III_18
HSTL IV_18
9.42 9.71 10.68 ns
5.77
5.95 6.55
ns
4.11
4.24 4.66
ns
2.87
2.96 3.26
ns
2.32
2.39 2.63
ns
1.70
1.75 1.93
ns
1.26
1.30 1.43
ns
6.52
6.72 7.39
ns
2.80
2.88 3.17
ns
1.57
1.62 1.78
ns
0.46
0.48 0.52
ns
0.00
0.00 0.00
ns
–0.13 –0.14 –0.15 ns
–0.22 –0.23 –0.26 ns
–0.31 –0.32 –0.36 ns
–0.25 –0.26 –0.29 ns
–0.18 –0.19 –0.21 ns
–0.17 –0.18 –0.19 ns
–0.20 –0.21 –0.23 ns
0.67
0.69 0.76
ns
–0.20 –0.21 –0.23 ns
0.29
0.30 0.33
ns
1.15
1.19 1.31
ns
–0.01 –0.01 –0.01 ns
–0.01 –0.01 –0.01 ns
–0.31 –0.32 –0.36 ns
–0.17 –0.18 –0.20 ns
0.26
0.27 0.29
ns
–0.15 –0.16 –0.17 ns
–0.17 –0.17 –0.19 ns
–0.40 –0.41 –0.45 ns
0.03
0.03 0.04
ns
–0.17 –0.18 –0.20 ns
–0.16 –0.16 –0.18 ns
–0.39 –0.40 –0.44 ns
DS031-3 (v3.0) August 1, 2003
Product Specification
www.xilinx.com
1-800-255-7778
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