DS003-1 Datasheet, PDF (29/76 Pages) Xilinx, Inc – Fast, high-density Field-Programmable Gate Arrays

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Virtex™ 2.5 V Field Programmable Gate Arrays
Virtex Switching Characteristics
All devices are 100% functionally tested. Internal timing
parameters are derived from measuring internal test pat-
terns. Listed below are representative values. For more
specific, more precise, and worst-case guaranteed data,
use the values reported by the static timing analyzer (TRCE
in the Xilinx Development System) and back-annotated to
the simulation net list. All timing parameters assume
worst-case operating conditions (supply voltage and junc-
tion temperature). Values apply to all Virtex devices unless
otherwise noted.
IOB Input Switching Characteristics
Input delays associated with the pad are specified for LVTTL levels. For other standards, adjust the delays with the values
shown in , page 6.
Description
Propagation Delays
Pad to I output, no delay
Pad to I output, with delay
Pad to output IQ via transparent
latch, no delay
Pad to output IQ via transparent
latch, with delay
Sequential Delays
Clock CLK
Minimum Pulse Width, High
Minimum Pulse Width, Low
Clock CLK to output IQ
Device
All
XCV50
XCV100
XCV150
XCV200
XCV300
XCV400
XCV600
XCV800
XCV1000
All
XCV50
XCV100
XCV150
XCV200
XCV300
XCV400
XCV600
XCV800
XCV1000
All
Symbol
T_IOPI
T_IOPID
T_IOPLI
T_IOPLID
T_CH
T_CL
T_IOCKIQ
Speed Grade
Min
-6
-5
0.39
0.8
0.9
0.8
1.5
1.7
0.8
1.5
1.7
0.8
1.5
1.7
0.8
1.5
1.7
0.8
1.5
1.7
0.9
1.8
2.0
0.9
1.8
2.0
1.1
2.1
2.4
1.1
2.1
2.4
0.8
1.6
1.8
1.9
3.7
4.2
1.9
3.7
4.2
2.0
3.9
4.3
2.0
4.0
4.4
2.0
4.0
4.4
2.1
4.1
4.6
2.1
4.2
4.7
2.2
4.4
4.9
2.3
4.5
5.1
-4
Units
1.0 ns, max
1.9 ns, max
1.9 ns, max
1.9 ns, max
1.9 ns, max
1.9 ns, max
2.3 ns, max
2.3 ns, max
2.7 ns, max
2.7 ns, max
2.0 ns, max
4.8 ns, max
4.8 ns, max
4.9 ns, max
5.1 ns, max
5.1 ns, max
5.3 ns, max
5.4 ns, max
5.6 ns, max
5.8 ns, max
0.8
1.5
1.7
2.0 ns, min
0.8
1.5
1.7
2.0 ns, min
0.2
0.7
0.7
0.8 ns, max
DS003-3 (v3.2) September 10, 2002
Production Product Specification
www.xilinx.com
1-800-255-7778
Module 3 of 4
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