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.
-3
-4
Symbol
Description
Min
Max
Min
Max
Units
Combinatorial Delays
T
F/G inputs to X/Y outputs
-
-
-
-
-
2.01
4.3
3.3
3.6
3.6
-
-
-
-
-
2.7
4.7
4.1
3.7
4.5
ns
ns
ns
ns
ns
ILO
T
F/G inputs via H to X/Y outputs
C inputs via SR through H to X/Y outputs
C inputs via H to X/Y outputs
IHO
T
T
T
HH0O
HH1O
HH2O
C inputs via D through H to X/Y outputs
IN
CLB Fast Carry Logic
Operand inputs (F1, F2, G1, G4) to C
T
-
-
-
-
-
2.6
4.4
1.7
3.3
0.7
-
-
-
-
-
3.2
5.5
1.7
3.8
1.0
ns
ns
ns
ns
ns
OPCY
OUT
T
Add/Subtract input (F3) to C
OUT
ASCY
T
Initialization inputs (F1, F3) to C
OUT
INCY
T
C
C
through function generators to X/Y outputs
SUM
IN
IN
T
to C
, bypass function generators
OUT
BYP
Sequential Delays
Clock K to outputs Q
Setup Time before Clock K
T
-
2.8
-
3.7
ns
CKO
T
F/G inputs
3.0
4.6
3.6
4.1
3.8
2.4
3.0
4.0
2.1
3.5
-
-
-
-
-
-
-
-
-
-
4.0
6.1
4.5
5.0
4.8
3.0
4.0
4.2
2.5
4.2
-
-
-
-
-
-
-
-
-
-
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ICK
T
F/G inputs via H
IHCK
T
T
T
C inputs via H0 through H
C inputs via H1 through H
C inputs via H2 through H
HH0CK
HH1CK
HH2CK
T
C inputs via D
IN
DICK
T
C inputs via EC
ECCK
T
C inputs via S/R, going Low (inactive)
RCK
CCK
T
C
C
input via F/G
IN
IN
T
input via F/G and H
CHCK
DS021 (v2.2) June 25, 2000
www.xilinx.com
7
Product Specification
1-800-255-7778
XILINX [ XILINX, INC ]
