XQ4000E Datasheet, PDF (7/36 Pages) Xilinx, Inc – System Performance beyond 60 MHz

R
QPRO XQ4000E/EX QML High-Reliability FPGAs
XQ4000E CLB Switching Characteristic Guidelines
Testing of switching parameters is modeled after testing
methods specified by MIL-M-38510/605. All devices are
100% functionally tested. Internal timing parameters are
derived from measuring internal test patterns. 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 Develop-
ment System) and back-annotated to the simulation netlist.
These path delays, provided as a guideline, have been
extracted from the static timing analyzer report. All timing
parameters assume worst-case operating conditions (sup-
ply voltage and junction temperature). Values apply to all
XQ4000E devices unless otherwise noted.
Symbol
Description
Combinatorial Delays
T_ILO
F/G inputs to X/Y outputs
T_IHO
F/G inputs via H to X/Y outputs
T_HH0O C inputs via SR through H to X/Y outputs
T_HH1O C inputs via H to X/Y outputs
T_HH2O C inputs via D_IN through H to X/Y outputs
CLB Fast Carry Logic
T_OPCY Operand inputs (F1, F2, G1, G4) to C_OUT
T_ASCY Add/Subtract input (F3) to C_OUT
T_INCY Initialization inputs (F1, F3) to C_OUT
T_SUM C_IN through function generators to X/Y outputs
T_BYP
C_IN to C_OUT, bypass function generators
Sequential Delays
T_CKO
Clock K to outputs Q
Setup Time before Clock K
T_ICK
T_IHCK
T_HH0CK
T_HH1CK
T_HH2CK
T_DICK
T_ECCK
T_RCK
T_CCK
T_CHCK
F/G inputs
F/G inputs via H
C inputs via H0 through H
C inputs via H1 through H
C inputs via H2 through H
C inputs via D_IN
C inputs via EC
C inputs via S/R, going Low (inactive)
C_IN input via F/G
C_IN input via F/G and H
-3
Min
Max
-
2.01
-
4.3
-
3.3
-
3.6
-
3.6
-
2.6
-
4.4
-
1.7
-
3.3
-
0.7
-
2.8
3.0
-
4.6
-
3.6
-
4.1
-
3.8
-
2.4
-
3.0
-
4.0
-
2.1
-
3.5
-
-4
Min
Max
Units
-
2.7
ns
-
4.7
ns
-
4.1
ns
-
3.7
ns
-
4.5
ns
-
3.2
ns
-
5.5
ns
-
1.7
ns
-
3.8
ns
-
1.0
ns
-
3.7
ns
4.0
-
ns
6.1
-
ns
4.5
-
ns
5.0
-
ns
4.8
-
ns
3.0
-
ns
4.0
-
ns
4.2
-
ns
2.5
-
ns
4.2
-
ns
DS021 (v2.2) June 25, 2000
www.xilinx.com
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Product Specification
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