XQ4000XL Datasheet, PDF (6/22 Pages) Xilinx, Inc – Ceramic and plastic packages

QPRO XQ4000XL Series QML High-Reliability FPGAs
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XQ4000XL 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 XQ4000XL devices and expressed in nanosec-
onds 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 D_IN/H2 via H to X/Y outputs
T_CBYP C inputs via EC, D_IN/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 delay, 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
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
-
1.6
-
2.7
-
2.9
-
2.5
-
2.4
-
2.5
-
1.5
-
2.7
-
3.3
-
2.0
-
2.8
-
0.26
-
0.32
-
2.1
-
2.1
1.1
-
2.2
-
2.0
-
1.9
-
2.0
-
0.9
-
1.0
-
0.6
-
2.3
-
3.4
-
-1
Min
Max
Units
-
1.3
ns
-
2.2
ns
-
2.2
ns
-
2.0
ns
-
1.9
ns
-
2.0
ns
-
1.1
ns
-
2.0
ns
-
2.5
ns
-
1.5
ns
-
2.4
ns
-
0.20
ns
-
0.25
ns
-
1.6
ns
-
1.6
ns
0.9
-
ns
1.7
-
ns
1.6
-
ns
1.4
-
ns
1.6
-
ns
0.7
-
ns
0.8
-
ns
0.5
-
ns
1.9
-
ns
2.7
-
ns
6
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DS029 (v1.3) June 25, 2000
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Product Specification