XQ4010E-4PG191M Datasheet, PDF (21/36 Pages) Xilinx, Inc – QPRO XQ4000E/EX

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QPRO XQ4000E/EX QML High-Reliability FPGAs
XQ4028EX 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.
All timing parameters assume worst-case operating condi-
tions (supply voltage and junction temperature). Values
apply to all XQ4000EX devices unless otherwise noted.
CLB Switching Characteristics
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_ITO
F/G inputs via transparent latch to Q outputs
T_HH0O
C inputs via SR/H0 via H to X/Y outputs
T_HH1O
C inputs via H1 via H to X/Y outputs
T_HH2O
C inputs via DIN/H2 via H to X/Y outputs
T_CBYP
C inputs via EC, DIN/H2 to YQ, XQ output (bypass)
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
T_NET
Carry net selay, C_OUT to C_IN
Sequential Delays
T_CKO
Clock K to flip-flop outputs Q
T_CKLO
Clock K to latch outputs Q
Setup Time before Clock K
T_ICK
F/G inputs
T_IHCK
F/G inputs via H
T_HH0CK
C inputs via H0 through H
T_HH1CK
C inputs via H1 through H
T_HH2CK
C inputs via H2 through H
T_DICK
C inputs via DIN
T_ECCK
C inputs via EC
T_RCK
C inputs via S/R, going Low (inactive)
T_CCK
CIN input via F/G
T_CHCK
CIN input via F/G and H
Hold Time after Clock K
T_CKI
F/G inputs
-4
Min
Max
-
2.2
-
3.8
-
3.2
-
3.6
-
3.0
-
3.6
-
2.0
-
2.5
-
4.1
-
1.9
-
3.0
-
0.60
-
0.18
-
2.2
-
2.2
1.3
-
3.0
-
2.8
-
2.2
-
2.8
-
1.2
-
1.2
-
0.8
-
2.2
-
3.9
-
0
-
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
DS021 (v2.2) June 25, 2000
www.xilinx.com
21
Product Specification
1-800-255-7778