R
Spartan and Spartan-XL Families Field Programmable Gate Arrays
Spartan Pin-to-Pin Input Parameter Guidelines
Testing of switching parameters is modeled after testing
methods specified by MIL-M-38510/605. All devices are
100% functionally tested. Pin-to-pin timing parameters are
derived from measuring external and internal test patterns
and are guaranteed over worst-case operating conditions
(supply voltage and junction temperature). Listed below are
representative values for typical pin locations and normal
clock loading.
Spartan Primary and Secondary Setup and Hold
Speed Grade
-4
-3
Symbol
Description
Device
Min
Min
Units
Input Setup/Hold Times Using Primary Clock and IFF
T
/T
No Delay
XCS05
XCS10
XCS20
XCS30
XCS40
XCS05
XCS10
XCS20
XCS30
XCS40
1.2 / 1.7
1.0 / 2.3
0.8 / 2.7
0.6 / 3.0
0.4 / 3.5
4.3 / 0.0
4.3 / 0.0
4.3 / 0.0
4.3 / 0.0
5.3 / 0.0
1.8 / 2.5
1.5 / 3.4
1.2 / 4.0
0.9 / 4.5
0.6 / 5.2
6.0 / 0.0
6.0 / 0.0
6.0 / 0.0
6.0 / 0.0
6.8 / 0.0
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
PSUF PHF
T
/T
With Delay
PSU PH
Input Setup/Hold Times Using Secondary Clock and IFF
T
/T
No Delay
XCS05
XCS10
XCS20
XCS30
XCS40
XCS05
XCS10
XCS20
XCS30
XCS40
0.9 / 2.2
0.7 / 2.8
0.5 / 3.2
0.3 / 3.5
0.1 / 4.0
4.0 / 0.0
4.0 / 0.0
4.0 / 0.5
4.0 / 0.5
5.0 / 0.0
1.5 / 3.0
1.2 / 3.9
0.9 / 4.5
0.6 / 5.0
0.3 / 5.7
5.7 / 0.0
5.7 / 0.0
5.7 / 0.5
5.7 / 0.5
6.5 / 0.0
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
SSUF SHF
T
/T
With Delay
SSU SH
Notes:
1. Setup time is measured with the fastest route and the lightest load. Hold time is measured using the furthest distance and a
reference load of one clock pin per IOB/CLB.
2. IFF = Input Flip-flop or Latch
DS060 (v1.6) September 19, 2001
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Product Specification
1-800-255-7778
XILINX [ XILINX, INC ]
